Drugs Similar to DOXYCYCLINE HYCLATE

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets and Capsules and Doxycycline for Oral Suspension; for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients in the capsule formulations are: colloidal silicon dioxide, lactose anhydrous, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and stearic acid. 50 mg gelatin capsule shell contains: FD&C Blue #1, D&C Yellow #10, titanium dioxide and gelatin. 100 mg gelatin capsule shell contains: FD&C Blue #1, titanium dioxide and gelatin. Black ink contains shellac glaze in SD-45, black iron oxide, propylene glycol, FD&C Blue #2, FD&C Red # 40, FD&C Blue # 1, D&C Yellow # 10, butyl alcohol, denatured alcohol. Each capsule, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline. Inactive ingredients for the oral suspension formulation are: confectioner's sugar, D&C red #27 aluminum lake, methylparaben, microcrystalline cellulose/ sodium carboxymethylcellulose, natural raspberry flavor; propylparaben, simethicone and sucrose. When reconstituted, each teaspoonful (5 mL) doxycycline suspension, for oral administration, contains doxycycline monohydrate equivalent to 25 mg of doxycycline. Inactive ingredients for the tablet formulation are: anhydrous lactose, colloidal silicon dioxide, FD&C Red No. 40, FD&C Yellow No. 6, hypromellose, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, stearic acid, and titanium dioxide. Each tablet, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline. Doxycycline Hyclate Tablets, USP meets USP Dissolution test 3. "Image Description"

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets and Capsules and Doxycycline for Oral Suspension; for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients in the capsule formulations are: colloidal silicon dioxide, lactose anhydrous, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and stearic acid. 50 mg gelatin capsule shell contains: FD&C Blue #1, D&C Yellow #10, titanium dioxide and gelatin. 100 mg gelatin capsule shell contains: FD&C Blue #1, titanium dioxide and gelatin. Black ink contains shellac glaze in SD-45, black iron oxide, propylene glycol, FD&C Blue #2, FD&C Red # 40, FD&C Blue # 1, D&C Yellow # 10, butyl alcohol, denatured alcohol. Each capsule, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline. Inactive ingredients for the oral suspension formulation are: confectioner's sugar, D&C red #27 aluminum lake, methylparaben, microcrystalline cellulose/ sodium carboxymethylcellulose, natural raspberry flavor; propylparaben, simethicone and sucrose. When reconstituted, each teaspoonful (5 mL) doxycycline suspension, for oral administration, contains doxycycline monohydrate equivalent to 25 mg of doxycycline. Inactive ingredients for the tablet formulation are: anhydrous lactose, colloidal silicon dioxide, FD&C Red No. 40, FD&C Yellow No. 6, hypromellose, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, stearic acid, and titanium dioxide. Each tablet, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline. Doxycycline Hyclate Tablets, USP meets USP Dissolution test 3. "Image Description"

Doxycycline hyclate is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate capsules for oral administration. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacene-carboxamide monohydrate. The structural formula of doxycycline hyclate is Doxycycline hyclate, USP is yellow to light yellow powder. It is freely soluble in water and methanol, sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous solution of alkali hydroxides and carbonates. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each capsule contains doxycycline hyclate equivalent to doxycycline 50 mg or 100 mg and inactive ingredients: anhydrous lactose, croscarmellose sodium, D&C red 28, FD & C blue 1, gelatin, microcrystalline cellulose, magnesium stearate and sodium lauryl sulfate and titanium dioxide. Each capsule cap is printed with white pharmaceutical ink and capsule body is printed with black pharmaceutical ink which contains following ingredient butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, strong ammonia solution, and shellac. Additionally black pharmaceutical ink also contains black iron oxide. Doxycycline hyclate capsules

Doxycycline hyclate is an antibacterial drug synthetically derived from oxytetracycline. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacene-carboxamide monohydrate. Doxycycline hyclate is yellow to light yellow powder. It is freely soluble in water and methanol, sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous solution of alkali hydroxides and carbonates. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. The structural formula is as follows: Each film-coated tablet for oral administration contains doxycycline hyclate equivalent to 100 mg of doxycycline (anhydrous). Inactive ingredients are: anhydrous lactose, croscarmellose sodium, colloidal silicon dioxide, hypromellose, iron oxide yellow , iron oxide red, microcrystalline cellulose, magnesium stearate, polyethylene glycol, pregelatinised starch and titanium dioxide. Doxycycline hyclate tablets

Doxycycline Hyclate Tablets, USP is an antibacterial drug synthetically derived from oxytetracycline. The structural formula of doxycycline hyclate is: with a molecular formula of (C 22 H 24 N 2 O 8 •HCL) 2 •C 2 H 6 O•H 2 Oand a molecular weight of 1025.88. The chemical designation for doxycycline is 2-Naphthacenecarboxamide, 4-(dimethylamino)-1, 4, 4a, 5, 5a, 6, -11, 12a-octahydro-3,5,10, 12, 12a-pentahydroxy-6-methyl-1, 11-dioxo-monohydrochloride, compound with ethanol(2:1), monohydrate, [4s-(4α, 4aα, 5α, 5aα, 6α, 12aα)]. Doxycycline is a yellow crystalline powder. Doxycycline hyclate is soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each tablet for oral administration contains doxycycline hyclate equivalent to 100 mg of doxycycline (anhydrous). Inactive ingredients are: Colloidal Silicon Dioxide, Corn Starch, Croscarmellose Sodium, Docusate Sodium, Sodium Benzoate, Magnesium Stearate, and Microcrystalline Cellulose. Film Coating and Polishing contains: FD&C Blue No. 2, FD&C Yellow No. 6, Hydroxypropyl Methylcellulose, Polyethylene Glycol, and Titanium Dioxide. doxy-hyclate-usp-structural-formula.jpg

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets and Capsules and Doxycycline for Oral Suspension; for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients in the capsule formulations are: colloidal silicon dioxide, lactose anhydrous, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and stearic acid. 50 mg gelatin capsule shell contains: FD&C Blue #1, D&C Yellow #10, titanium dioxide and gelatin. 100 mg gelatin capsule shell contains: FD&C Blue #1, titanium dioxide and gelatin. Black ink contains shellac glaze in SD-45, black iron oxide, propylene glycol, FD&C Blue #2, FD&C Red # 40, FD&C Blue # 1, D&C Yellow # 10, butyl alcohol, denatured alcohol. Each capsule, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline. Inactive ingredients for the oral suspension formulation are: confectioner's sugar, D&C red #27 aluminum lake, methylparaben, microcrystalline cellulose/ sodium carboxymethylcellulose, natural raspberry flavor; propylparaben, simethicone and sucrose. When reconstituted, each teaspoonful (5 mL) doxycycline suspension, for oral administration, contains doxycycline monohydrate equivalent to 25 mg of doxycycline. Inactive ingredients for the tablet formulation are: anhydrous lactose, colloidal silicon dioxide, FD&C Red No. 40, FD&C Yellow No. 6, hypromellose, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, stearic acid, and titanium dioxide. Each tablet, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline. Doxycycline Hyclate Tablets, USP meets USP Dissolution test 3. Chemical Structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets and Capsules and Doxycycline for Oral Suspension; for oral administration.The chemical designation of doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12apentahydroxy-6-methyl-1,11-dioxo-2-naphthacene-carboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. The structural formula of doxycycline hyclate is With a molecular formula of (C 22 H 24 N 2 O 8 •HCl) 2 •C 2 H 6 O•H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water. https://www.accessdata.fda.gov/spl/data/5a80562b-6db7-45b3-9285-d27e2353ba8d/5a80562b-6db7-45b3-9285-d27e2353ba8d.xml Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients in the capsule formulations are: colloidal silicon dioxide, lactose anhydrous, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and stearic acid. 50 mg gelatin capsule shell contains: FD&C Blue #1, D&C Yellow #10, titanium dioxide and gelatin. 100 mg gelatin capsule shell contains: FD&C Blue #1, titanium dioxide and gelatin. Black ink contains shellac glaze in SD-45, black iron oxide, propylene glycol, FD&C Blue #2, FD&C Red # 40, FD&C Blue # 1, D&C Yellow # 10, butyl alcohol, denatured alcohol. Each capsule, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline. Inactive ingredients for the oral suspension formulation are: confectioner's sugar, D&C red #27 aluminum lake, methylparaben, microcrystalline cellulose/ sodium carboxymethylcellulose, natural raspberry flavor; propylparaben, simethicone and sucrose. When reconstituted, each teaspoonful (5 mL) doxycycline suspension, for oral administration, contains doxycycline monohydrate equivalent to 25 mg of doxycycline. Inactive ingredients for the tablet formulation are: anhydrous lactose, colloidal silicon dioxide, FD&C Red No. 40, FD&C Yellow No. 6, hypromellose, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, stearic acid, and titanium dioxide. Each tablet, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline. Doxycycline Hyclate Tablets, USP meets USP Dissolution test 3. Doxycyline Hyclate Chemical Structure

Doxycycline hyclate tablets, USP contain doxycycline hyclate, USP, a tetracycline class drug synthetically derived from oxytetracycline, in an immediate release formulation for oral administration. The molecular formula of doxycycline hyclate is (C 22 H 24 N 2 O 8 · HCl) 2 · C 2 H 6 O · H 2 O and the molecular weight of doxycycline hyclate is 1025.87. The chemical name for doxycycline hyclate is: 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. The structural formula for doxycycline hyclate is: Figure 1: Structure of Doxycycline Hyclate Doxycycline hyclate is a yellow to light yellow powder which is freely soluble in water and in methanol; sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous solutions of alkali hydroxides and carbonates. Doxycycline hyclate tablets are available as 75 mg and 150 mg tablets. Each 75 mg tablet contains 86.559 mg of doxycycline hyclate equivalent to 75 mg of doxycycline. Each 150 mg tablet contains 173.117 mg of doxycycline hyclate equivalent to 150 mg of doxycycline. Inactive ingredients in the tablet formulation are: microcrystalline cellulose, sodium lauryl sulfate, croscarmellose sodium and magnesium stearate. Film-coating contains: polyvinyl alcohol, titanium dioxide, polyethylene glycol 3350, talc, iron oxide yellow, FD&C Blue #1 (75 mg Tablet) and FD&C Blue #2 (150 mg Tablet). Doxycycline hyclate tablets, USP meets USP Dissolution Test 3 . Structure

Doxycycline hyclate is an antibacterial drug synthetically derived from oxytetracycline. The chemical designation for doxycyclin is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacene-carboxamide monohydrate. Doxycycline hyclate is yellow to light yellow powder. It is freely soluble in water and methanol, sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous solution of alkali hydroxides and carbonates. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. The structural formula is as follows: Each film-coated tablet for oral administration contains doxycycline hyclate equivalent to 100 mg of doxycycline (anhydrous). Inactive ingredients are: anhydrous lactose, croscarmellose sodium, colloidal silicon dioxide, hypromellose, iron oxide yellow , iron oxide red, microcrystalline cellulose, magnesium stearate, polyethylene glycol, pregelatinised starch and titanium dioxide.

Doxycycline Hyclate Capsules, USP are an antibacterial drug synthetically derived from oxytetracycline. The structural formula of doxycycline hyclate is: with a molecular formula of (C 22 H 24 N 2 O 8 •HCL) 2 •C 2 H 6 O•H 2 Oand a molecular weight of 1025.88. The chemical designation for doxycycline is 2-Naphthacenecarboxamide, 4-(dimethylamino)-1, 4, 4a, 5, 5a, 6, -11, 12a-octahydro-3,5,10, 12, 12a-pentahydroxy-6-methyl-1, 11-dioxo-monohydrochloride, compound with ethanol(2:1), monohydrate, [4s-(4α, 4aα, 5α, 5aα, 6α, 12aα)]. Doxycycline is a yellow crystalline powder. Doxycycline hyclate is soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each capsule for oral administration contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline (anhydrous). Inactive ingredients: lactose monohydrate, microcrystalline cellulose, magnesium stearate. The 50 mg and 100 mg capsule shells contain: gelatin, FD&C Blue #1 and titanium dioxide. The printing ink may contain: Shellac Glaze, Iron Oxide Black, N-Butyl Alcohol, Propylene Glycol, SD-45 Alcohol, FD&C Blue #2, FD&C Red #40, FD&C Blue #1, D&C Yellow #10. doxycycline-hyclate-capsules---hikma-1.jpg

Doxycycline hyclate, USP is an antibacterial drug synthetically derived from oxytetracycline. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 •H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 •HCl) 2 •C 2 H 6 O•H 2 O and the molecular weight is 1025.89. Doxycycline hyclate is a yellow to light-yellow powder which is freely soluble in water and in methanol; sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous solutions of alkali hydroxides and carbonates. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each capsule for oral administration contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline (anhydrous). Inert ingredients are colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose. 50 mg and 100 mg capsule shell contains FD&C Blue No. 1, gelatin, and titanium dioxide. The printing ink contains iron oxide black, potassium hydroxide, propylene glycol and shellac. Structure

Doxycycline Hyclate Tablets, USP contain doxycycline hyclate, USP a tetracycline class drug synthetically derived from oxytetracycline, in an immediate release formulation for oral administration. The molecular formula of doxycycline hyclate is (C 22 H 24 N 2 O 8 · HCl) 2 · C 2 H 6 O · H 2 O and the molecular weight of doxycycline hyclate is 1025.87. The chemical name for doxycycline hyclate is: 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. The structural formula for doxycycline hyclate is: Figure 1: Structure of Doxycycline Hyclate Doxycycline hyclate, USP is a yellow crystalline powder soluble in water and in solutions of alkali hydroxides and carbonates. Doxycycline Hyclate Tablets, USP: Doxycycline hyclate, USP is available as 75 mg and 150 mg tablets. Each 75 mg tablet contains 86.6 mg of doxycycline hyclate, USP equivalent to 75 mg of doxycycline, USP. Each 150 mg tablet contains 173.2 mg of doxycycline hyclate, USP equivalent to 150 mg of doxycycline, USP. Inactive ingredients in the tablet formulation are: silicified microcrystalline cellulose, sodium lauryl sulfate and magnesium stearate. Film-coating contains: hypromellose, titanium dioxide, polyethylene glycol, FD&C Blue #2 (75 mg Tablet), FD&C Yellow #6 (75 mg Tablet), FD&C Blue #2 (150 mg Tablet) and yellow iron oxide (150 mg Tablet). Doxycycline hyclate tablets, USP 75 mg contain 0.03 mg (0.0013 mEq) of sodium. Doxycycline hyclate tablets, USP 150 mg contain 0.06 mg (0.0026 mEq) of sodium. Doxycycline hyclate tablets meets USP Dissolution Test 3. structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate tablets, USP. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients for the tablet formulation are: croscarmellose sodium, ferric oxide red, ferric oxide yellow, hypromellose, magnesium stearate, microcrystalline cellulose PH112, polyethylene glycol, silicon dioxide, titanium dioxide and water. FDA approved dissolution test specifications differ from USP. Chemical Structure

Doxycycline hyclate tablets, USP are available as a 20 mg formulation of doxycycline for oral administration. The structural formula of doxycycline hyclate is: with an empirical formula of (C 22 H 24 N 2 O 8 •HCl) 2 •C 2 H 6 O•H 2 O and a molecular weight of 1025.89. The chemical designation for doxycycline is 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a–octahydro-3,5,10,12,12a–pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. Doxycycline hyclate, USP is a yellow to light-yellow powder which is freely soluble in water and in methanol; sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous solutions of alkali hydroxides and carbonates. Inert ingredients in the formulation are: colloidal silicon dioxide, croscarmellose sodium, lactose anhydrous, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Each tablet contains 23 mg of doxycycline hyclate equivalent to 20 mg of doxycycline. Doxycycline hyclate tablets, USP meets USP Dissolution Test 3 . Structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets and Capsules and Doxycycline for Oral Suspension; for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients in the capsule formulations are: colloidal silicon dioxide, lactose anhydrous, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and stearic acid. 50 mg gelatin capsule shell contains: FD&C Blue #1, D&C Yellow #10, titanium dioxide and gelatin. 100 mg gelatin capsule shell contains: FD&C Blue #1, titanium dioxide and gelatin. Black ink contains shellac glaze in SD-45, black iron oxide, propylene glycol, FD&C Blue #2, FD&C Red # 40, FD&C Blue # 1, D&C Yellow # 10, butyl alcohol, denatured alcohol. Each capsule, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline. Inactive ingredients for the oral suspension formulation are: confectioner's sugar, D&C red #27 aluminum lake, methylparaben, microcrystalline cellulose/ sodium carboxymethylcellulose, natural raspberry flavor; propylparaben, simethicone and sucrose. When reconstituted, each teaspoonful (5 mL) doxycycline suspension, for oral administration, contains doxycycline monohydrate equivalent to 25 mg of doxycycline. Inactive ingredients for the tablet formulation are: anhydrous lactose, colloidal silicon dioxide, FD&C Red No. 40, FD&C Yellow No. 6, hypromellose, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, stearic acid, and titanium dioxide. Each tablet, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline. Doxycycline Hyclate Tablets, USP meets USP Dissolution test 3. "Image Description"

Doxycycline hyclate is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate (doxycycline hydrochloride hemiethanolate hemihydrate) capsules and tablets for oral administration. The chemical designation of this light-yellow crystalline powder is alpha-6-deoxy-5-oxytetracycline. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Doxycycline hyclate has the following structural formula: Each capsule for oral administration contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline (anhydrous). Inactive ingredients for capsules are: anhydrous lactose, croscarmellose sodium, FD&C Blue #1, gelatin, magnesium stearate, microcrystalline cellulose, and titanium dioxide. Each tablet for oral administration contains doxycycline hyclate equivalent to 100 mg doxycycline. Inactive ingredients for tablets are: lactose monohydrate, carnauba wax, croscarmellose sodium, D&C Yellow #10 aluminum lake, FD&C Red #40 aluminum lake, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, and titanium dioxide. R:\Regulatory\spl\Jennifer\Doxycycline Caps\Pictures\doxycycline-01.jpg

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate tablets, USP. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients for the tablet formulation are: croscarmellose sodium, ferric oxide red, ferric oxide yellow, hypromellose, magnesium stearate, microcrystalline cellulose PH112, polyethylene glycol, silicon dioxide, titanium dioxide and water. FDA approved dissolution test specifications differ from USP. chem draw structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate tablets, USP. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients for the tablet formulation are: croscarmellose sodium, ferric oxide red, ferric oxide yellow, hypromellose, magnesium stearate, microcrystalline cellulose PH112, polyethylene glycol, silicon dioxide, titanium dioxide and water. FDA approved dissolution test specifications differ from USP. chem draw structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets (doxycycline hydrochloride hemiethanolate hemihydrate) for oral administration. The structural formula of doxycycline hyclate is: With a molecular formula of C 22 H 24 N 2 O 8 •H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 •HCl) 2 •C 2 H 6 O•H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients are: colloidal silicon dioxide, corn starch, croscarmellose sodium, docusate sodium, magnesium stearate, microcrystalline cellulose, ethyl alcohol and a coating containing hypromellose, polyethylene glycol, titanium dioxide, FD&C Blue No. 2 and FD&C Yellow No. 6. structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets and Capsules and Doxycycline for Oral Suspension; for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients in the capsule formulations are: colloidal silicon dioxide, lactose anhydrous, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and stearic acid. 50 mg gelatin capsule shell contains: FD&C Blue #1, D&C Yellow #10, titanium dioxide and gelatin. 100 mg gelatin capsule shell contains: FD&C Blue #1, titanium dioxide and gelatin. Black ink contains shellac glaze in SD-45, black iron oxide, propylene glycol, FD&C Blue #2, FD&C Red # 40, FD&C Blue # 1, D&C Yellow # 10, butyl alcohol, denatured alcohol. Each capsule, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline. Inactive ingredients for the oral suspension formulation are: confectioner's sugar, D&C red #27 aluminum lake, methylparaben, microcrystalline cellulose/ sodium carboxymethylcellulose, natural raspberry flavor; propylparaben, simethicone and sucrose. When reconstituted, each teaspoonful (5 mL) doxycycline suspension, for oral administration, contains doxycycline monohydrate equivalent to 25 mg of doxycycline. Inactive ingredients for the tablet formulation are: anhydrous lactose, colloidal silicon dioxide, FD&C Red No. 40, FD&C Yellow No. 6, hypromellose, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, stearic acid, and titanium dioxide. Each tablet, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline. Doxycycline Hyclate Tablets, USP meets USP Dissolution test 3. Chemical Structure

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Structural Formula

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.89 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Structural Formula

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.89 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Structural Formula

Doxycycline is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline 150 mg, 100 mg, 75 mg, and 50 mg tablets contain doxycycline monohydrate equivalent to 150 mg, 100 mg, 75 mg, or 50 mg of doxycycline for oral administration. The chemical designation of the light-yellow crystalline powder is alpha-6-deoxy-5-oxytetracycline. Structural formula: C 22 H 24 N 2 O 8 •H 2 O M.W. = 462.45 Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients: lactose monohydrate, microcrystalline cellulose, sodium starch glycolate, hypromellose 2910, magnesium stearate and opadry 04G84829 pink which contains: hypromellose 2910, talc, titanium dioxide, propylene glycol, polyethylene glycol 6000, iron oxide yellow and iron oxide red. structure

To reduce the development of drug-resistant bacteria and maintain the effectiveness of doxycycline and other antibacterial drugs, doxycycline should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. DESCRIPTION Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as capsules of doxycycline hyclate for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a- octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2- naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients in the capsule formulations are: FD&C Blue 1, gelatin, magnesium stearate, iron oxide, microcrystalline cellulose, potassium hydroxide, shellac, sodium lauryl sulfate, and titanium dioxide. structure

Doxycycline Capsules USP is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline 150 mg, 100 mg and 50 mg capsules contain doxycycline monohydrate equivalent to 150 mg, 100 mg or 50 mg of doxycycline for oral administration. The chemical designation of the light-yellow crystalline powder is alpha-6-deoxy-5-oxytetracycline. Structural formula: C22H24N2O8•H2O M.W. = 462.45 Doxycycline Capsules USP has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients include colloidal silicon dioxide, gelatin, magnesium stearate, microcrystalline cellulose, sodium starch glycolate and titanium dioxide. In addition, the 50 mg strength contains FD&C Yellow #6 and D&C Yellow #10. The 100 mg strength also contains black iron oxide, red iron oxide and yellow iron oxide. The 150 mg strength includes FD&C Red #40 and FD&C Yellow #6. This is the chemical structure

Doxycycline is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline 150 mg, 100 mg, 75 mg, and 50 mg tablets contain doxycycline monohydrate, USP equivalent to 150 mg, 100 mg, 75 mg, or 50 mg of doxycycline for oral administration. Inactive ingredients include colloidal silicon dioxide, hypromellose, magnesium stearate, microcrystalline cellulose, polysorbate 80, sodium starch glycolate, and titanium dioxide. In addition, doxycycline 50 mg tablets contain: FD&C Blue #1 Aluminum lake and polyethylene glycol, 75 mg tablets contain: D&C Yellow #10 Aluminum lake, FD&C Blue #1 Aluminum lake, FD&C Yellow #6 Aluminum lake and triacetin, 100 mg tablets contain: polyethylene glycol and FD&C Blue #1 Aluminum lake and 150 mg tablets contain: polyethylene glycol. Its molecular weight is 462.46. The chemical designation of the light-yellow crystalline powder is alpha-6-deoxy-5-oxytetracycline. Structural formula: C 22 H 24 N 2 O 8 •H 2 O Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form figure 1

Doxycycline Capsules USP is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline 150 mg, 100 mg and 50 mg capsules contain doxycycline monohydrate equivalent to 150 mg, 100 mg or 50 mg of doxycycline for oral administration. The chemical designation of the light-yellow crystalline powder is alpha-6-deoxy-5-oxytetracycline. Structural formula: C22H24N2O8•H2O M.W. = 462.45 Doxycycline Capsules USP has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients include colloidal silicon dioxide, gelatin, magnesium stearate, microcrystalline cellulose, sodium starch glycolate and titanium dioxide. In addition, the 50 mg strength contains FD&C Yellow #6 and D&C Yellow #10. The 100 mg strength also contains black iron oxide, red iron oxide and yellow iron oxide. The 150 mg strength includes FD&C Red #40 and FD&C Yellow #6. This is the chemical structure

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in water for injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.89 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Doxycycline Structural Formula

Doxycycline, USP is a broad - spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline monohydrate capsules USP, 100 mg and 75 mg contain doxycycline monohydrate equivalent to 100 mg and 75 mg of doxycycline for oral administration. The chemical designation of the light yellow to pale yellow powder is alpha- 6- deoxy- 5- oxytetracycline. Structural formula: C 22 H 24 N 2 O 8 • H 2 O M.W. = 462.45 Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients: microcrystalline cellulose; sodium starch glycolate; povidone; colloidal silicon dioxide; magnesium stearate; and a hard gelatin capsule which contains iron oxide black, iron oxide red, iron oxide yellow, titanium dioxide, gelatin and sodium lauryl sulphate. The capsule shells of 75 mg are printed with edible black ink containing shellac, propylene glycol, iron oxide black and potassium hydroxide. The cap of 100 mg capsule shells is printed with edible white ink containing shellac, propylene glycol, potassium hydroxide and titanium dioxide. The body of 100 mg capsule shells is printed with edible and brown ink containing shellac, propylene glycol, potassium hydroxide, iron oxide brown and iron oxide black. Structure

Doxycycline for injection, USP is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate (doxycycline hydrochloride hemiethanolate hemihydrate). The chemical designation of this yellowish crystalline powder is alpha-6-deoxy-5-oxytetracycline. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum.

Doxycycline is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline tablets USP, 50 mg, 75 mg, 100 mg and 150 mg contain doxycycline monohydrate equivalent to 50 mg, 75 mg, 100 mg or 150 mg of doxycycline, USP for oral administration. Doxycycline, USP is light yellow to pale yellow powder, very slightly soluble in alcohol and water; practically insoluble in ether. It dissolves in dilute solutions of mineral acids and in solutions of alkali hydroxides and carbonates. Its molecular weight is 462.45. The chemical designation of doxycycline is alpha-6-deoxy-5-oxytetracycline. Structural formula: Image C 22 H 24 N 2 O 8 •H 2 O M.W. = 462.45 Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients are as follows: colloidal silicon dioxide, crospovidone, hydroxyl propyl methylcellulose, magnesium stearate and microcrystalline cellulose, titanium dioxide. In addition, 50 mg tablets contain: D&C yellow#10 aluminum lake, FD&C blue#2, iron oxide yellow, polyethylene glycol and polysorbate 80. 75 mg tablets contain: iron oxide red, iron oxide yellow, lactose monohydrate, triethyl citrate. 100 mg tablets contain: D&C yellow#10 aluminum lake, FD&C red#40, iron oxide yellow, polyethylene glycol, polysorbate 80. 150 mg tablets contain: D&C yellow#10 aluminum lake, iron oxide red, iron oxide yellow, lactose monohydrate, triethyl citrate. The Product meets USP dissolution test - 2

Doxycycline Hyclate Capsules, USP, are an antibacterial drug synthetically derived from oxytetracycline. The structural formula of doxycycline monohydrate is: [structural formula of doxycycline monohydrate] with a molecular formula of C22H24N2O8•H2O and a molecular weight of 462.46. The chemical designation for doxycycline is 4­ (Dimethylamino)­1,4,4a,5,5a,6,11,12a­octahydro­3,5,10,12,12a­pentahydroxy­6­methyl­1,11­dioxo­2­naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C22H24N2O8•HCl)2•C2H6O•H2O and the molecular weight is 1025.89. Doxycycline is a light yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each capsule for oral administration contains doxycycline hyclate equivalent to 100 mg of doxycycline (anhydrous). Inactive ingredients: lactose monohydrate, microcrystalline cellulose, magnesium stearate. The 100 mg capsule shell contains: gelatin, diacetylated monoglycerides, sucrose fatty acid esters, glacial acetic acid, sodium lauryl sulfate, colloidal silicon dioxide, FD&C Blue #1 and titanium dioxide. The printing ink may contain: Shellac Glaze, Iron Oxide Black, N­Butyl Alcohol, Propylene Glycol, SDA 3A Alcohol, FD&C Blue #2, FD&C Red #40, FD&C Blue #1, D&C Yellow #10.

Doxycycline for Injection, USP is a sterile, pale yellow to yellow lyophilized powder or cake prepared from a solution of doxycycline hyclate, and ascorbic acid in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellow crystalline powder which is chemically designated (4S,4aR,5S,5aR,6R,12aS)-4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.87 Doxycycline hyclate is freely soluble in water and in methanol. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline and ascorbic acid 480 mg. The pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Chemical Structure

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Doxycycline Capsules USP is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline 150 mg, 100 mg and 50 mg capsules contain doxycycline monohydrate equivalent to 150 mg, 100 mg or 50 mg of doxycycline for oral administration. The chemical designation of the light-yellow crystalline powder is alpha-6-deoxy-5-oxytetracycline. Structural formula: C22H24N2O8•H2O M.W. = 462.45 Doxycycline Capsules USP has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients include colloidal silicon dioxide, gelatin, magnesium stearate, microcrystalline cellulose, sodium starch glycolate and titanium dioxide. In addition, the 50 mg strength contains FD&C Yellow #6 and D&C Yellow #10. The 100 mg strength also contains black iron oxide, red iron oxide and yellow iron oxide. The 150 mg strength includes FD&C Red #40 and FD&C Yellow #6. This is the chemical structure

To reduce the development of drug-resistant bacteria and maintain the effectiveness of doxycycline and other antibacterial drugs, doxycycline should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. DESCRIPTION Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as capsules of doxycycline hyclate for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a- octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2- naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients in the capsule formulations are: FD&C Blue 1, gelatin, magnesium stearate, iron oxide, microcrystalline cellulose, potassium hydroxide, shellac, sodium lauryl sulfate, and titanium dioxide. structure

Doxycycline, USP is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline capsules USP, 100 mg and 75 mg contain doxycycline monohydrate equivalent to 100 mg and 75 mg of doxycycline for oral administration. The chemical designation of the light yellow to pale yellow powder is alpha-6-deoxy-5-oxytetracycline. Structural formula: C 22 H 24 N 2 O 8 • H 2 O M.W. = 462.45 Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients: microcrystalline cellulose; sodium starch glycolate; povidone; colloidal silicon dioxide; magnesium stearate; and a hard gelatin capsule which contains iron oxide black, iron oxide red, iron oxide yellow, titanium dioxide, gelatin and sodium lauryl sulphate. The capsule shells of 75 mg are printed with edible black ink containing shellac, propylene glycol, iron oxide black and potassium hydroxide. The cap of 100 mg capsule shells is printed with edible white ink containing shellac, propylene glycol, potassium hydroxide and titanium dioxide. The body of 100 mg capsule shells is printed with edible and brown ink containing shellac, propylene glycol, potassium hydroxide, iron oxide brown and iron oxide black. structure

Doxycycline capsules 40 mg are hard gelatin capsule shells filled with 33.25 mg immediate release and 6.75 mg delayed release minitablets that together provide a dose of 40 mg of doxycycline. The structural formula of doxycycline, USP is: with a molecular formula of C 22 H 24 N 2 O 8 •H 2 O and a molecular weight of 462.45; 444.43 (anhydrous). The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate (USP). It is very slightly soluble in water. Doxycycline capsules are supplied in 40 mg strength for oral administration containing doxycycline as the active ingredient and the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, lactose monohydrate, magnesium stearate, methacrylic acid and ethyl acrylate copolymer, methacrylic acid and methyl methacrylate copolymer (1:2), microcrystalline cellulose, talc, and triethyl citrate. FDA approved dissolution test method and specifications differ from USP.

Doxycycline is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline 150 mg, 100 mg, 75 mg, and 50 mg tablets contain doxycycline monohydrate equivalent to 150 mg, 100 mg, 75 mg, or 50 mg of doxycycline for oral administration. The chemical designation of the light-yellow crystalline powder is alpha-6-deoxy-5-oxytetracycline. Structural formula: C 22 H 24 N 2 O 8 •H 2 O M.W. = 462.45 Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients: lactose monohydrate, microcrystalline cellulose, sodium starch glycolate, hypromellose 2910, magnesium stearate and opadry 04G84829 pink which contains: hypromellose 2910, talc, titanium dioxide, propylene glycol, polyethylene glycol 6000, iron oxide yellow and iron oxide red. structure

ACTICLATE (doxycycline hyclate) Tablets and ACTICLATE CAP (doxycycline hyclate) Capsules contain doxycycline hyclate, a tetracycline class drug synthetically derived from oxytetracycline, in an immediate release formulation for oral administration. The molecular formula of doxycycline hyclate is (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O• H 2 O and the molecular weight of doxycycline hyclate is 1025.87. The chemical name for doxycycline hyclate is: 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. The structural formula for doxycycline hyclate is: Figure 1: Structure of Doxycycline Hyclate Doxycycline hyclate is a yellow crystalline powder soluble in water and in solutions of alkali hydroxides and carbonates. ACTICLATE Tablet: ACTICLATE is available as 75 mg and 150 mg tablets. Each 75 mg tablet contains 86.6 mg of doxycycline hyclate equivalent to 75 mg of doxycycline. Each 150 mg tablet contains 173.2 mg of doxycycline hyclate equivalent to 150 mg of doxycycline. Inactive ingredients in the tablet formulation are: microcrystalline cellulose, sodium lauryl sulfate, croscarmellose sodium and magnesium stearate. Film-coating contains: polyvinyl alcohol, titanium dioxide, polyethylene glycol, talc, FD&C Blue #1 (75 mg Tablet), FD&C Blue #2 (150 mg Tablet) and yellow iron oxide (150 mg Tablet). ACTICLATE Tablets, 75 mg contain 0.34 mg (0.0146 mEq) of sodium. ACTICLATE Tablets, 150 mg contain 0.68 mg (0.0295 mEq) of sodium. ACTICLATE CAP Capsule: ACTICLATE CAP is available as 75 mg capsules. Each 75 mg capsule contains 86.6 mg of doxycycline hyclate equivalent to 75 mg of doxycycline. Inactive ingredients in the capsule formulation are: microcrystalline cellulose, magnesium stearate, and a hard gelatin capsule which contains titanium dioxide, FD&C Red #40 and FD&C Blue #1. The capsules are printed with edible ink containing ammonium hydroxide, propylene glycol, isopropyl alcohol, N-butyl alcohol, black iron oxide, and shellac glaze in ethanol. structural formula

Doryx MPC (doxycycline hyclate delayed-release tablets) for oral use, contain doxycycline hyclate, a tetracycline class drug synthetically derived from oxytetracycline, in a delayed-release formulation consisting of pellets with a modified polymer enteric coat that has increased acid resistance. The structural formula for doxycycline hyclate is: with a molecular formula of C 22 H 24 N 2 O 8 , HCl, ½ C 2 H 6 O, ½ H 2 O and a molecular weight of 512.9. The chemical name for doxycycline hyclate is [4S(4aR,5S,5aR,6R,12aS)]-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-deoxonaphthacene-2-carboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. Doxycycline hyclate is a yellow crystalline powder soluble in water and in solutions of alkali hydroxides and carbonates. Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each tablet contains doxycycline 60 mg (equivalent to doxycycline hyclate 69.4 mg) or doxycycline 120 mg (equivalent to doxycycline hyclate 138.8 mg). Inactive ingredients in the tablet formulation are: lactose monohydrate; microcrystalline cellulose; sodium lauryl sulfate; sodium chloride; talc; anhydrous lactose; corn starch; crospovidone; magnesium stearate; cellulosic polymer coating. Each DORYX MPC 60 mg Tablet contains 3.6 mg (0.157 mEq) of sodium. Each DORYX MPC 120 mg Tablet contains 7.2 mg (0.313 mEq) of sodium. Chemical Structure

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.89 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Structural Formula

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.89 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Structural Formula

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Structural Formula

Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. STRUCTURE s2

Doxycycline Hyclate Capsules, USP is an antibacterial drug synthetically derived from oxytetracycline. The structural formula of doxycycline hyclate is: with a molecular formula of (C 22 H 24 N 2 O 8 •HCL) 2 •C 2 H 6 O•H 2 O and a molecular weight of 1025.88. The chemical designation for doxycycline is 2-Naphthacenecarboxamide, 4-(dimethylamino)-1, 4, 4a, 5, 5a, 6, -11, 12a-octahydro-3,5,10, 12, 12a-pentahydroxy-6-methyl-1, 11-dioxo-monohydrochloride, compound with ethanol(2:1), monohydrate, [4s-(4α, 4aα, 5α, 5aα, 6α, 12aα)]. Doxycycline is a yellow crystalline powder. Doxycycline hyclate is soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each capsule for oral administration contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline (anhydrous). Inactive ingredients: lactose monohydrate, microcrystalline cellulose, magnesium stearate. The 50 mg and 100 mg capsule shells contain: gelatin, FD&C Blue #1 and titanium dioxide. The printing ink may contain: Shellac Glaze, Iron Oxide Black, N-Butyl Alcohol, Propylene Glycol, SD-45 Alcohol, FD&C Blue #2, FD&C Red #40, FD&C Blue #1, D&C Yellow #10. doxycycline-hyclate-capsules---hikma-1.jpg

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in water for injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.89 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Doxycycline Structural Formula

To reduce the development of drug-resistant bacteria and maintain the effectiveness of doxycycline and other antibacterial drugs, doxycycline should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. DESCRIPTION Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as capsules of doxycycline hyclate for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a- octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2- naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inert ingredients in the capsule formulations are: FD&C Blue 1, gelatin, magnesium stearate, iron oxide, microcrystalline cellulose, potassium hydroxide, shellac, sodium lauryl sulfate, and titanium dioxide. structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as Doxycycline Hyclate Tablets and Capsules and Doxycycline for Oral Suspension; for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 ∙H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 ∙HCl) 2 ∙C 2 H 6 O∙H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water, while doxycycline monohydrate is very slightly soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Inactive ingredients in the capsule formulations are: colloidal silicon dioxide, lactose anhydrous, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and stearic acid. 50 mg gelatin capsule shell contains: FD&C Blue #1, D&C Yellow #10, titanium dioxide and gelatin. 100 mg gelatin capsule shell contains: FD&C Blue #1, titanium dioxide and gelatin. Black ink contains shellac glaze in SD-45, black iron oxide, propylene glycol, FD&C Blue #2, FD&C Red # 40, FD&C Blue # 1, D&C Yellow # 10, butyl alcohol, denatured alcohol. Each capsule, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg of doxycycline. Inactive ingredients for the oral suspension formulation are: confectioner's sugar, D&C red #27 aluminum lake, methylparaben, microcrystalline cellulose/ sodium carboxymethylcellulose, natural raspberry flavor; propylparaben, simethicone and sucrose. When reconstituted, each teaspoonful (5 mL) doxycycline suspension, for oral administration, contains doxycycline monohydrate equivalent to 25 mg of doxycycline. Inactive ingredients for the tablet formulation are: anhydrous lactose, colloidal silicon dioxide, FD&C Red No. 40, FD&C Yellow No. 6, hypromellose, magnesium stearate, methylcellulose, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, stearic acid, and titanium dioxide. Each tablet, for oral administration, contains doxycycline hyclate equivalent to 50 mg or 100 mg doxycycline. Doxycycline Hyclate Tablets, USP meets USP Dissolution test 3. "Image Description"

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate USP, ascorbic acid and mannitol in water for injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellow crystalline powder which is chemically designated 2-Naphthacenecarboxamide, 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro 3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-, monohydrochloride, compd. with ethanol (2:1),monohydrate, [4S-(4α,4aα,5α,5aα,6α,12aα)]. It has the following structural formula: (C 22 H 24 N 2 O 8 . HCl) 2. C 2 H 6 O. H 2 O Molecular Weight: 1025.87 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate USP equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. doxycyclinestructure

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellow to light yellow crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-de monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.88 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg per mL) is between 1.8 and 3.3. Structural Formula

Doxycycline Hyclate Tablets, USP are an antibacterial drug synthetically derived from oxytetracycline. The structural formula of doxycycline hyclate is: with a molecular formula of C 22 H 24 N 2 O 8 •HCL•1/2C 2 N 5 OH•1/2H 2 O and a molecular weight of 512.93. The chemical designation for doxycycline is 2-Naphthacemecarboxamide, 4-(dimethylamino)-1, 4, 4a, 5, 5a, 6, -11, 12a-octahydro-3,5,10, 12, 12a-pentahydroxy-6-mothyl-1, 11-dioxo-monohydrochloride, compound with ethanol (2:1), monohydrate, [4s-(4α, 4aα, 5α, 5aα, 6α, 12aα)]. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate is soluble in water. Doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each tablet for oral administration contains doxycycline hyclate equivalent to 100 mg of doxycycline (anhydrous). Inactive ingredients are: Colloidal Silicon Dioxide, Corn Starch, Croscarmellose Sodium, Docusate Sodium, Sodium Benzoate, Magnesium Stearate, and Microcrystalline Cellulose. Film Coating and Polishing contains: FD&C Blue No. 2, FD&C Yellow No. 6, Hydroxypropyl Methylcellulose, Polyethylene Glycol, and Titanium Dioxide. Chemical structure

Doxycycline for injection, USP is a sterile pale yellow lyophilized powder or cake and an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate USP. The chemical designation of this yellow to light yellow crystalline powder is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline freely soluble in water and in methanol. Sparingly soluble in ethanol (96%). It dissolves in solutions of alkali hydroxides and carbonates. Practically insoluble in chloroform, in ether and in other organic solvents. Each 100 mg vial contains doxycycline hyclate, USP equivalent to 100 mg doxycycline. It also contains ascorbic acid 480 mg and mannitol 300 mg as inactive ingredients and does not contain preservatives. The pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. structural formula

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-demonohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. doxycycline-spl-structure

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellow to light yellow powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11- dioxo-2-naphthacenecarboxamide, monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipoid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Each 200 mg vial contains: Doxycycline hyclate equivalent to doxycycline 200 mg; ascorbic acid 960 mg; mannitol 600 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Image

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-demonohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. doxycycline-spl-structure.jpg

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-demonohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. doxycycline-spl-structure.jpg

Doxycycline for Injection, USP is a sterile, lyophilized powder prepared from a solution of doxycycline hyclate, ascorbic acid and mannitol in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellowish crystalline powder which is chemically designated 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-demonohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.89 Doxycycline hyclate is soluble in water and chars at 201°C without melting. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline; ascorbic acid 480 mg; mannitol 300 mg. pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. structure

Doxycycline for Injection, USP is a sterile, pale yellow to yellow lyophilized powder or cake prepared from a solution of doxycycline hyclate, and ascorbic acid in Water for Injection. Doxycycline hyclate is a broad spectrum antibiotic derived from oxytetracycline. It is meant for INTRAVENOUS use only after reconstitution. Doxycycline hyclate is a yellow crystalline powder which is chemically designated (4S,4aR,5S,5aR,6R,12aS)-4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. It has the following structural formula: (C 22 H 24 N 2 O 8 • HCl) 2 • C 2 H 6 O • H 2 O M.W. 1025.87 Doxycycline hyclate is freely soluble in water and in methanol. The base doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Each 100 mg vial contains: Doxycycline hyclate equivalent to 100 mg doxycycline and ascorbic acid 480 mg. The pH of the reconstituted solution (10 mg/mL) is between 1.8 and 3.3. Chemical Structure