alembic pharmaceuticals limited - Medication Listings

Clobetasol Propionate Topical Solution USP, 0.05% contains the active compound clobetasol propionate, a synthetic corticosteroid, for topical dermatologic use. Clobetasol, an analog of prednisolone, has a high degree of glucocorticoid activity and a slight degree of mineralocorticoid activity. Chemically, clobetasol propionate is (11β,16β)-21-chloro-9-fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy) pregna-1,4-diene-3,20-dione, and it has the following structural formula: Clobetasol propionate has the molecular formula C 25 H 32 CIFO 5 and a molecular weight of 467. It is a white to cream-colored crystalline powder insoluble in water. Clobetasol Propionate Topical Solution USP, 0.05% contains clobetasol propionate 0.5 mg/g in a base of carbopol 974P, isopropyl alcohol (39.3% w/w), purified water, and sodium hydroxide. Image

Clobetasol propionate foam, 0.05%, is a white to off white thermolabile hydroethanolic aerosol foam containing the active ingredient, clobetasol propionate, USP, a synthetic corticosteroid, for topical use. Clobetasol, an analog of prednisolone, has a high degree of glucocorticoid activity and a slight degree of mineralocorticoid activity. Clobetasol propionate is 21-chloro-9-fluoro-11β,17-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 17-propionate, with the empirical formula C 25 H 32 ClFO 5 , a molecular weight of 466.97. The following is the chemical structure: Clobetasol propionate is a white or almost white crystalline powder, practically insoluble in water. Each gram of clobetasol propionate foam contains 0.5 mg clobetasol propionate, USP. The foam also contains cetyl alcohol, citric acid, ethanol (60%), polysorbate 60, potassium citrate, propylene glycol, purified water, and stearyl alcohol pressurized with a hydrocarbon (propane/butane) propellant. structure

Clobetasol Propionate Shampoo, 0.05%, contains clobetasol propionate, USP a synthetic fluorinated corticosteroid, for topical use. The corticosteroids constitute a class of primarily synthetic steroids used topically as anti-inflammatory and antipruritic agents. The chemical name of clobetasol propionate, USP is 21-chloro-9-fluoro-11β, 17-dihydroxy-16β-methylpregna-1, 4-diene-3, 20-dione 17-propionate. It has the following structural formula: Clobetasol propionate, USP has a molecular weight of 466.97 (CAS Registry Number 25122-46-7). The molecular formula is C 25 H 32 ClFO 5 . Clobetasol propionate, USP is a white to practically white crystalline, odorless powder insoluble in water. Each gram of clobetasol propionate shampoo, 0.05%, contains 0.5 mg of clobetasol propionate, USP in a translucent, colorless to pale yellow viscous liquid shampoo base consisting of alcohol, citric acid, coco-betaine, polyquaternium-10, purified water, sodium citrate, and sodium laureth sulfate. Image

Clobetasol Propionate Ointment USP, 0.05% contains the active compound clobetasol propionate, a synthetic corticosteroid, for topical dermatologic use. Clobetasol, an analog of prednisolone, has a high degree of glucocorticoid activity and a slight degree of mineralocorticoid activity. Clobetasol propionate is a white to cream-colored crystalline powder insoluble in water. Chemically, it is 21-chloro-9-fluoro-11β,17-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 17-propionate, and it has the following structural formula: structure Each gram of the 0.05% ointment contains clobetasol propionate 0.5 mg in a base of propylene glycol, sorbitan sesquioleate, and white petrolatum. Structure

Clobetasol Propionate Cream USP, 0.05% contain the active compound clobetasol propionate, USP a synthetic corticosteroid, for topical dermatologic use. Clobetasol, an analog of prednisolone, has a high degree of glucocorticoid activity and a slight degree of mineralocorticoid activity. Chemically, clobetasol propionate, USP is Pregna-1,4-diene-3,20-dione, 21-chloro-9-fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)-, (11β,16β), and it has the following structural formula: Clobetasol propionate, USP has the molecular formula C 25 H 32 ClFO 5 and a molecular weight of 466.97. It is a white to almost white crystalline powder insoluble in water. Clobetasol Propionate Cream USP, 0.05% contains clobetasol propionate, USP 0.5 mg/g in a cream base composed of anhydrous citric acid, cetyl alcohol, glycol stearate, lanolin oil, methylparaben, PEG-8 stearate, polysorbate 60, propylene glycol, propylparaben, purified water, sodium citrate, stearyl alcohol, and white petrolatum. Sodium hydroxide may be used to adjust pH. Chemical Structure

Clobetasol propionate spray, 0.05% contains clobetasol propionate, a synthetic fluorinated corticosteroid, for topical use. The corticosteroids constitute a class of primarily synthetic steroids used topically as anti-inflammatory and antipruritic agents. Clobetasol propionate is 21-chloro-9-fluoro-11β, 17-dihydroxy-16β -methylpregna-1,4-diene-3,20-dione 17- propionate, with the empirical formula C 25 H 32 CIFO 5 , and a molecular weight of 466.97 (CAS Registry Number 25122-46-7). The following is the chemical structure: Clobetasol propionate is a white to almost white crystalline powder that is practically insoluble in water. Each gram of clobetasol propionate spray, 0.05% contains 0.5 mg of clobetasol propionate, in a clear, colorless liquid composed of alcohol, isopropyl myristate, sodium lauryl sulfate, and undecylenic acid. Image

Clomipramine hydrochloride capsules, USP an antiobsessional drug that belongs to the class (dibenzazepine) of pharmacologic agents known as tricyclic antidepressants. Clomipramine hydrochloride is available as capsules of 25, 50, and 75 mg for oral administration. Clomipramine hydrochloride, USP is 3-chloro-5-[3-(dimethylamino)propyl]-10,11-dihydro­ 5 H -dibenz[ b , f ] azepine monohydrochloride, and its structural formula is: C 19 H 23 ClN 2 ● HCl MW = 351.31 Clomipramine hydrochloride, USP is a white or slightly yellow crystalline powder. It is very soluble in water. Inactive Ingredients . Microcrystalline cellulose, pregelatinized starch, colloidal silicon dioxide and magnesium stearate. Capsule shell contains gelatin, titanium dioxide, iron oxide yellow (25 mg capsules only), FD&C Yellow 6, D&C Yellow 10, FD&C Blue 1 (50 mg capsules only). The capsule shells are printed with edible black ink containing shellac, propylene glycol, iron oxide black and potassium hydroxide. Structure

Clonazepam, USP a benzodiazepine, is available as an orally disintegrating tablet containing 0.125 mg, 0.25 mg, 0.5 mg, 1 mg or 2 mg clonazepam, USP. Each orally disintegrating tablet also contains sorbitol, aspartame, sodium lauryl sulfate, crospovidone, mannitol, colloidal silicon dioxide, talc and magnesium stearate. Chemically, clonazepam, USP is 5-(2-chlorophenyl)-1,3-dihydro-7-nitro-2 H -1,4-­benzodiazepin-2-one. It is a light yellow powder. It has a molecular weight of 315.72 and the following structural formula: Structure

Clonidine hydrochloride is a centrally acting alpha-agonist hypotensive agent available as tablets for oral administration in three dosage strengths: 0.1 mg, 0.2 mg and 0.3 mg. The 0.1 mg tablet is equivalent to 0.087 mg of the free base. The inactive ingredients are lactose monohydrate, microcrystalline cellulose, pregelatinized starch, sodium starch glycolate, magnesium stearate and FD&C Yellow No. 6 Aluminum Lake. Clonidine hydrochloride 0.1 mg tablets also contain FD&C Red No. 40 Aluminum Lake and FD&C Blue No. 1 Aluminum Lake. Clonidine hydrochloride is an imidazoline derivative and exists as a mesomeric compound. The chemical name is 2-(2,6-dichlorophenylamino)-2-imidazoline hydrochloride. The following is the structural formula: C 9 H 9 Cl 2 N 3 .HCl Mol Wt. 266.56 Clonidine hydrochloride is an odorless, bitter, white, crystalline substance soluble in water and alcohol. Structure

Cyclophosphamide, USP is a synthetic antineoplastic drug chemically related to the nitrogen mustards. The chemical name for cyclophosphamide is 2-[bis(2-chloroethyl)amino]tetrahydro-2H-1,3,2-oxazaphosphorine 2-oxide monohydrate, and has the following structural formula: Cyclophosphamide has a molecular formula C 7 H 15 Cl 2 N 2 O 2 P • H 2 O and a molecular weight of 279.1. Cyclophosphamide is soluble in water and freely soluble in alcohol. Each capsule for oral administration contains 25 mg or 50 mg cyclophosphamide (anhydrous, USP) and the following inactive ingredients: pregelatinized starch and sodium stearyl fumarate. Each hard gelatin capsule shell contains FD&C Blue 1, FD&C Red 3, gelatin and titanium dioxide. The empty gelatin capsule shells are printed with edible black ink containing shellac, iron oxide black and potassium hydroxide. cyclophosphamide-str.jpg

The chemical name for dabigatran etexilate mesylate, a direct thrombin inhibitor, is β-Alanine, N-[[2-[[[4-[[[(hexyloxy)carbonyl]amino]iminomethyl]phenyl]amino]methyl]-1-methyl-1H-benzimidazol-5-yl]carbonyl]-N-2-pyridinyl-,ethyl ester, methanesulfonate. The empirical formula is C 34 H 41 N 7 O 5 ⋅ CH 4 O 3 S and the molecular weight is 723.86 (mesylate salt), 627.75 (free base). The structural formula is: Dabigatran etexilate mesylate is off-white to yellowish powder. It is freely soluble in methanol and ethanol, practically insoluble in acetone, ethyl acetate and water. Dabigatran etexilate capsules are supplied in 75 mg, 110 mg, and 150 mg strengths for oral administration. Each capsule contains dabigatran etexilate mesylate as the active ingredient: 75 mg dabigatran etexilate (equivalent to 86.48 mg dabigatran etexilate mesylate), 110 mg dabigatran etexilate (equivalent to 126.83 mg dabigatran etexilate mesylate) or 150 mg dabigatran etexilate (equivalent to 172.95 mg dabigatran etexilate mesylate) along with the following inactive ingredients: hydroxypropyl cellulose, hypromellose phthalate, pelletized tartaric acid, talc. The capsule shell is composed of carrageenan, hypromellose, potassium chloride and titanium dioxide. Additionally, 110 mg and 150 mg capsule shell also contains FD&C Blue No. 2. The empty hard hypromellose capsule shells are printed with edible black ink containing iron oxide black, potassium hydroxide and shellac. dabigatran-structure.jpg

Dapsone gel, 7.5%, contains dapsone, a sulfone, in an aqueous gel base for topical dermatologic use. Dapsone gel, 7.5% is an off-white to yellow homogeneous gel with suspended particles. Chemically, dapsone has an empirical formula of C 12 H 12 N 2 O 2 S. It is a white to creamy white, crystalline powder that has a molecular weight of 248.30. Dapsone's chemical name is 4-[(4-aminobenzene) sulfonyl] aniline and its structural formula is: Each gram of dapsone gel, 7.5%, contains 75 mg of dapsone, USP, in a gel of diethylene glycol monoethyl ether, methylparaben, acrylamide/sodium acryloyldimethyl taurate copolymer, isohexadecane, polysorbate 80, and purified water. Image

Darifenacin is an extended-release tablet for oral administration which contains 7.5 mg or 15 mg darifenacin as its hydrobromide salt. The active moiety, darifenacin, is a potent muscarinic receptor antagonist. Chemically, darifenacin hydrobromide is (S) -2-{1-[2-(2,3-dihydrobenzofuran-5-yl)ethyl]-3-pyrrolidinyl}-2,2diphenylacetamide hydrobromide. The empirical formula of darifenacin hydrobromide is C 28 H 30 N 2 O 2 •HBr. The structural formula is: Darifenacin hydrobromide is a white to off-white crystalline powder, with a molecular weight of 507.5. Darifenacin is a once-a-day extended-release tablet and contains the following inactive ingredients: hypromellose, povidone, dibasic calcium phosphate anhydrous, magnesium stearate, titanium dioxide, polyethylene glycol, talc. The 15 mg tablet also contains iron oxide red and iron oxide yellow. Structure

Dasatinib tablet is a kinase inhibitor. The chemical name for dasatinib is N-(2-chloro-6- methylphenyl)-2-[[6-[4-(2-hydroxyethyl)-1-piperazinyl]-2-methyl-4-pyrimidinyl]amino]-5- thiazolecarboxamide, monohydrate. The molecular formula is C 22 H 26 ClN 7 O 2 S • H 2 O, which corresponds to a formula weight of 506.02 (monohydrate). The anhydrous free base has a molecular weight of 488.01. Dasatinib has the following chemical structure: Dasatinib is off-white to yellowish powder. The drug substance is practically insoluble in water and slightly to very slightly soluble in methanol and freely soluble in dimethyl sulfoxide, soluble in N,N-dimethyl formamide. Dasatinib tablets are white to off-white, biconvex, film-coated tablets containing dasatinib, with the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose anhydrous, magnesium stearate and microcrystalline cellulose. The tablet coating consists of hypromellose, polyethylene glycol and titanium dioxide. structure

Deferasirox is an iron chelating agent. Deferasirox tablets for oral suspension contain 125 mg, 250 mg, or 500 mg deferasirox. Deferasirox is designated chemically as 4-[3,5-Bis (2-hydroxyphenyl)-1H-1,2,4-triazol-1-yl]-benzoic acid and its structural formula is: Deferasirox is a white to slightly yellow powder. Its molecular formula is C 21 H 15 N 3 O 4 and its molecular weight is 373.36 g/mol. Inactive Ingredients: Crospovidone (NF), sodium starch glycolate (NF), croscarmellose sodium (NF), colloidal silicon dioxide (NF), sodium lauryl sulphate (NF), povidone (K-30) (USP), lactose monohydrate (NF), and magnesium stearate (NF). Structure

Deferasirox is an iron-chelating agent provided as a tablet for oral use. Deferasirox is designated chemically as 4-[3,5-bis(2-hydroxyphenyl)-1 H -1,2,4-triazol-1-yl]benzoic acid and has the following structural formula: Deferasirox is a white to slightly yellow powder. It has a molecular formula C 21 H 15 N 3 O 4 and molecular weight of 373.36 g/mol. It is freely soluble in N, N-Dimethyl formamide and in dimethyl sulfoxide, practically insoluble in water. Deferasirox tablets contain 90 mg, 180 mg, or 360 mg deferasirox. Inactive ingredients include microcrystalline cellulose, crospovidone, colloidal silicon dioxide, povidone (K30), poloxamer (188), sodium starch glycolate, and magnesium stearate. The film coating contains hypromellose, titanium dioxide, polyethylene glycol, talc, and FD&C Blue No. 2 Aluminium Lake. Structure

Desipramine hydrochloride, USP is an antidepressant drug of the tricyclic type, and is chemically: 5H-Dibenz [bƒ] azepine-5-propanamine, 10, 11-dihydro-N-methyl-, monohydrochloride. Each desipramine hydrochloride tablet, USP contains 10 mg, 25 mg, 50 mg, 75 mg, 100 mg, or 150 mg of desipramine hydrochloride, USP for oral administration. Inactive Ingredients The following inactive ingredients are contained in all dosage strengths: croscarmellose sodium, microcrystalline cellulose, hydroxypropyl cellulose, citric acid monohydrate, magnesium stearate, hypromellose, titanium dioxide, talc, polyethylene glycol 8000 (10 mg, 25 mg, 50 mg, 75 mg and 100 mg) and polyethylene glycol 6000 (only 150 mg). 10 mg tablet also contains FD&C Blue No. 1 Aluminum Lake and iron oxide yellow. 25 mg tablet also contains D&C Yellow No. 10 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake and FD&C Blue No. 2 Aluminum Lake. 50 mg tablet also contains FD&C Blue No.1 Aluminum Lake, D&C Yellow No. 10 Aluminum Lake and FD&C Yellow No. 6 Aluminum Lake. 75 mg tablet also contains FD&C Yellow No. 6 Aluminum Lake and FD&C Red No. 40 Aluminum Lake. 100 mg tablet also contains FD&C Yellow No. 6 Aluminum Lake, D&C Yellow No. 10 Aluminum Lake and FD&C Blue No. 2 Aluminum Lake. desipramine-structure

Desonide Lotion, 0.05% contain desonide, USP (Pregna-1,4-diene-3,20-dione,11,21- dihydroxy-16,17 [(1-methylethylidene) bis (oxy)]- (11β,16α)- a synthetic nonfluorinated corticosteroid for topical dermatologic use. The corticosteroids constitute a class of primarily synthetic steroids used topically as anti-inflammatory and anti-pruritic agents. Chemically, desonide, USP is C 24 H 32 O 6 . It has the following structural formula: Desonide, USP has the molecular weight of 416.51. It is a white to almost white crystalline powder which is practically insoluble in water, sparingly soluble in ethanol and in acetone, soluble in chloroform. Each gram of desonide lotion, 0.05% contains 0.5 mg of desonide, USP in a base of cetyl alcohol, edetate disodium, glyceryl stearate SE, light mineral oil, methylparaben, propylene glycol, propylparaben, purified water, sodium lauryl sulfate, sorbitan monostearate, and stearyl alcohol. May contain citric acid and/or sodium hydroxide for pH adjustment. chemical structure

Desonide cream, 0.05% contains desonide (Pregna-1,4-diene-3,20-dione,11,21-dihydroxy-16,17-[(1-methylethylidene)bis(oxy)]-,(11β,16α)) a synthetic corticosteroid for topical dermatologic use. The corticosteroids constitute a class of primary synthetic steroids used topically as anti-inflammatory and antipruritic agents. Chemically, desonide, USP the active ingredient in desonide cream, 0.05% is C 24 H 32 O 6 . It has the following structural formula: The molecular weight of desonide is 416.51. It is a white to almost white crystalline powder. The solubility of desonide in distilled water saturated with ether is 184 mg/L. Each gram of desonide cream, 0.05% contains 0.5 mg of desonide, USP microdispersed in a base of aluminum sulfate, calcium acetate, cetostearyl alcohol, dextrin, edetate disodium, glycerin, light mineral oil, purified water, sodium lauryl sulfate, white wax, and white petrolatum. Desonide cream, 0.05% is preserved with methylparaben and buffered to pH 4.2 to 5.0. Image

Desonide ointment, 0.05% contains desonide (Pregna-1,4-diene-3,20-dione,11,21-dihydroxy-16,17-[(1-methylethylidene)bis(oxy)]-,(11β,16α)) a synthetic corticosteroid for topical dermatologic use. The corticosteroids constitute a class of primary synthetic steroids used topically as anti-inflammatory and antipruritic agents. Chemically, desonide, the active ingredient in desonide ointment, 0.05% is C 24 H 32 O 6 . It has the following structural formula: The molecular weight of desonide is 416.51. It is white to off-white powder. The solubility of desonide in distilled water saturated with the ether is 184 mg/L. Each gram of desonide ointment, 0.05% contains 0.5 mg of desonide microdispersed in a base of white petrolatum. structure

Desvenlafaxine extended-release tablets for oral administration contains desvenlafaxine, a structurally novel SNRI for the treatment of MDD. Desvenlafaxine (O-desmethylvenlafaxine) is the major active metabolite of the antidepressant venlafaxine, a medication used to treat major depressive disorder. Desvenlafaxine is designated RS -4-[2-dimethylamino-1-(1-hydroxycyclohexyl)ethyl]phenol and has the empirical formula of C 16 H 25 NO 2 . Desvenlafaxine has a molecular weight of 263.38. The structural formula is shown below. * Chiral Centre Desvenlafaxine is a white to off-white crystalline powder that is sparingly soluble in dimethyl sulfoxide. The solubility of desvenlafaxine is pH dependent. Desvenlafaxine is formulated as an extended-release tablet for once-a-day oral administration. Each 50 mg or 100 mg extended-release tablet contains 50 or 100 mg of desvenlafaxine, respectively. Inactive ingredients for the 50 mg tablet consist of alginic acid, citric acid monohydrate powder, hypromellose, microcrystalline cellulose, povidone, talc, magnesium stearate and film coating, which consist of hypromellose, titanium dioxide, polyethylene glycol, talc, and iron oxide red. Inactive ingredients for the 100 mg tablet consist of alginic acid, citric acid monohydrate powder, hypromellose, microcrystalline cellulose, povidone, talc, magnesium stearate and film coating, which consist of hypromellose, titanium dioxide, polyethylene glycol, iron oxide red, and iron oxide black. Structure

Desvenlafaxine is an extended-release tablet for oral administration that contains desvenlafaxine succinate, a structurally novel SNRI for the treatment of MDD. Desvenlafaxine (O-desmethylvenlafaxine) is the major active metabolite of the antidepressant venlafaxine, a medication used to treat major depressive disorder. Desvenlafaxine is designated RS -4-[2-dimethylamino-1-(1-hydroxycyclohexyl)ethyl]phenol and has the empirical formula of C 16 H 25 NO 2 (free base) and C 16 H 25 NO 2 •C 4 H 6 O 4 •H 2 O (succinate monohydrate). Desvenlafaxine succinate monohydrate has a molecular weight of 399.48. The structural formula is shown below. Desvenlafaxine succinate is a white to off-white powder that is soluble in water. The solubility of desvenlafaxine succinate is pH dependent. Its octanol:aqueous system (at pH 7) partition coefficient is 0.21. Desvenlafaxine is formulated as an extended-release tablet for once-a-day oral administration. Each tablet contains 38 mg, 76 mg or 152 mg of desvenlafaxine succinate equivalent to 25 mg, 50 mg or 100 mg of desvenlafaxine, respectively. Inactive ingredients for the 25 mg tablet consist of hypromellose, magnesium stearate, microcrystalline cellulose, povidone, talc and film coating, which consists of hypromellose, iron oxide yellow, iron oxide red, iron oxide black, polyethylene glycol, talc, and titanium dioxide. Inactive ingredients for the 50 mg tablet consist of hypromellose, magnesium stearate, microcrystalline cellulose, povidone, talc and film coating, which consists of hypromellose, iron oxide red, polyethylene glycol, talc, and titanium dioxide. Inactive ingredients for the 100 mg tablet consist of hypromellose, magnesium stearate, microcrystalline cellulose, povidone, talc and film coating, which consists of hypromellose, iron oxide black, iron oxide red, polyethylene glycol, talc, and titanium dioxide. Structure

The active ingredient in dexlansoprazole delayed-release capsules, a proton pump inhibitor, is (+)-2-[(R)-{[3-methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl] methyl} sulfinyl]- 1H -benzimidazole, a compound that inhibits gastric acid secretion. Dexlansoprazole is the R -enantiomer of lansoprazole (a racemic mixture of the R -and S -enantiomers). Its empirical formula is: C 16 H 14 F 3 N 3 O 2 S, with a molecular weight of 369.36. Dexlansoprazole has the following chemical structure: Dexlansoprazole is a white to brownish powder which melts at about 146°C. Dexlansoprazole is freely soluble in methanol, dichloromethane, soluble in acetonitrile, practically insoluble in water. Dexlansoprazole is stable when exposed to light. Dexlansoprazole is more stable in neutral and alkaline conditions than acidic conditions. Dexlansoprazole is supplied for oral administration as a dual delayed-release formulation in capsules. The capsules contain dexlansoprazole in a mixture of two types of enteric-coated pellets with different pH-dependent dissolution profiles [see Clinical Pharmacology (12.3)]. Dexlansoprazole delayed-release capsules are available in two dosage strengths: 30 and 60 mg, per capsule. Each capsule contains enteric-coated pellets consisting of dexlansoprazole (active ingredient) and the following inactive ingredients: colloidal silicon dioxide, confectioner’s sugar, croscarmellose sodium, hydroxypropyl cellulose, hypromellose, magnesium carbonate, methacrylic acid copolymer dispersion, methacrylic acid and methyl methacrylate copolymer (1:1), methacrylic acid and methyl methacrylate copolymer (1:2), polyethylene glycol 8000, polysorbate 80, sodium lauryl sulfate, sugar spheres (composed of corn starch, sucrose, and water), talc, titanium dioxide and triethyl citrate. The capsule shell contains carrageenan, hypromellose and potassium chloride, Additionally, 30 mg capsule shell contains FD&C Blue No. 1, iron oxide red, iron oxide yellow, titanium dioxide and whereas 60 mg capsule shell contains iron oxide red. The capsule shells are printed with edible ink containing black iron oxide, potassium hydroxide and shellac. dexlansoprazole-str.jpg

Diazepam is a benzodiazepine derivative. Chemically, diazepam is 7-chloro-1,3-dihydro-1- methyl-5-phenyl-2H-1,4-benzodiazepin-2-one. It is a colorless crystalline compound, insoluble in water, with a molecular weight of 284.74 and with the following molecular structure: M.W. 284.74 Diazepam Injection, USP is a sterile solution intended for intramuscular or intravenous administration and each mL contains 5 mg diazepam compounded with 40% propylene glycol, 10% alcohol, 5% sodium benzoate and benzoic acid as buffers, and 1.5% benzyl alcohol as preservative. diazepam-structure

Diclofenac sodium topical solution USP, 2% w/w, contains diclofenac sodium, USP a benzeneacetic acid derivative that is a nonsteroidal anti-inflammatory drug, and is available as a clear, colorless to faintly pink or orange solution for topical application. The chemical name is 2 [(2,6-dichlorophenyl) amino]-benzeneacetic acid, monosodium salt. The molecular weight is 318.14. Its molecular formula is C 14 H 10 Cl 2 NNaO 2, and it has the following chemical structure. Each 1 gram of solution contains 20 mg of diclofenac sodium, USP. The inactive ingredients: dimethyl sulfoxide USP (DMSO, 45.5% w/w), ethanol (31.3% v/v), purified water, propylene glycol, and hydroxypropyl cellulose. structure

Diclofenac sodium topical gel, 3%, intended for dermatologic use, contains the active ingredient, diclofenac sodium, in a clear, transparent, colorless to slightly yellow or orange gel base. Diclofenac sodium is a white or slightly yellowish hygroscopic crystalline powder. It is freely soluble in methanol, soluble in ethanol, sparingly soluble in water, slightly soluble in acetone, and partially insoluble in ether. The chemical name for diclofenac sodium is: Sodium [ o- (2,6-dichloranilino) phenyl] acetate Diclofenac sodium has a molecular weight of 318.13. The CAS number is CAS-15307-79-6. The structural formula is represented below: Diclofenac sodium topical gel, 3% also contains benzyl alcohol, sodium hyaluronate, polyethylene glycol monomethyl ether, and purified water. 1 g of diclofenac sodium topical gel, 3% contains 30 mg of the active substance, diclofenac sodium. Image

Difluprednate ophthalmic emulsion 0.05% is a sterile, topical anti-inflammatory corticosteroid for topical ophthalmic use. The chemical name is 6α,9difluoro-11β,17,21-trihydroxypregna-1,4- diene-3,20-dione 21-acetate 17-butyrate (CAS number 23674-86-4). Difluprednate is represented by the following structural formula: Difluprednate has a molecular weight of 508.56 g/mol, and the empirical formula is C 27 H 34 F 2 O 7 . Each mL of difluprednate ophthalmic emulsion contains: Active : difluprednate 0.5 mg (0.05%); Inactives: boric acid, castor oil, edetate disodium, glycerin, polysorbate 80, sodium acetate, sodium hydroxide (to adjust the pH to 5.2 to 5.8), water for injection. Preservative : sorbic acid 0.1%. The emulsion is essentially isotonic with a tonicity of 304 to 411 mOsm/kg. difluprednate-structure

Diltiazem hydrochloride, USP is a calcium ion cellular influx inhibitor (slow channel blocker or calcium antagonist). Chemically, diltiazem hydrochloride, USP is 1,5-Benzothiazepin-4(5 H )-one, 3-(acetyloxy)-5-[2-(dimethylamino)ethyl]-2, 3-dihydro-2-(4- methoxyphenyl)-, monohydrochloride,(+)- cis -. The chemical structure is: Diltiazem hydrochloride, USP is a white to off-white crystalline powder with a bitter taste. It is freely soluble in chloroform, in formic acid, in methanol and in water, sparingly soluble in dehydrated ethanol, insoluble in ether. It has a molecular weight of 450.98. Each diltiazem hydrochloride tablet, USP contains 30 mg, 60 mg, 90 mg, or 120 mg of diltiazem hydrochloride, USP. Also contains: colloidal silicon dioxide, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake (30 mg and 90 mg), FD&C Yellow No. 6 Aluminum Lake (60 mg and 120 mg), hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol 400, talc and titanium dioxide. For oral administration. FDA approved dissolution test specifications differ from USP. diltiazem-str.jpg

Diltiazem hydrochloride, USP is a calcium ion influx inhibitor (slow channel blocker or calcium antagonist). Chemically, diltiazem hydrochloride, USP is 1,5-Benzothiazepin-4(5 H )one, 3-(acetyloxy)-5-[2-(dimethylamino)ethyl]-2,3-dihydro-2-(4-methoxyphenyl)-, monohydrochloride, (+)-cis-. Its molecular formula is C 22 H 26 N 2 O 4 S•HCl and its molecular weight is 450.98. Its structural formula is as follows: Diltiazem hydrochloride, USP is a white to off-white crystalline powder with a bitter taste. It is freely soluble in chloroform, formic acid, methanol and water, sparingly soluble in dehydrated ethanol and insoluble in ether. Diltiazem hydrochloride extended-release capsules, USP contain 120 mg or 180 mg or 240 mg diltiazem hydrochloride and are formulated for the controlled release of diltiazem hydrochloride over a 24-hour period. Inactive Ingredients: Diltiazem hydrochloride extended-release capsules, USP contain lactose monohydrate, hypromellose, colloidal silicon dioxide and magnesium stearate. The 120 mg, 180 mg and 240 mg capsule shells contain FD&C Blue 1, FD&C Red 3, FD&C Red 40, titanium dioxide and gelatin. Additionally, 120 mg capsule shell contains FD&C Yellow 6, 180 mg and 240 mg capsule shell contains D&C Red 33. The capsules are printed with edible ink containing shellac, iron oxide black and potassium hydroxide. For oral administration. FDA approved dissolution test specifications differ from USP. diltiazem-str.jpg

Diltiazem hydrochloride, USP is a calcium ion cellular influx inhibitor (slow channel blocker or calcium antagonist). Chemically, diltiazem hydrochloride is 1,5-Benzothiazepin-4(5H)-one, 3-(acetyloxy)-5-[2-(dimethylamino) ethyl]-2, 3-dihydro-2-(4-methoxyphenyl)-, monohydrochloride, (+)-cis-. The chemical structure is: Diltiazem hydrochloride, USP is a white to off-white crystalline powder with a bitter taste. It is freely soluble in chloroform, in formic acid, in methanol and in water, sparingly soluble in dehydrated ethanol, insoluble in ether. It has a molecular weight of 450.98. Diltiazem hydrochloride extended-release capsules, USP are formulated as a once-a-day extended-release capsule containing 120 mg diltiazem hydrochloride, USP (equivalent to 110.3 mg diltiazem), 180 mg diltiazem hydrochloride, USP (equivalent to 165.45 mg diltiazem), 240 mg diltiazem hydrochloride, USP (equivalent to 220.6 mg diltiazem), 300 mg diltiazem hydrochloride, USP (equivalent to 275.75 mg diltiazem), or 360 mg diltiazem hydrochloride, USP (equivalent to 330.9 mg diltiazem). The 120 mg, 180 mg, 240 mg, 300 mg and 360 mg capsules contain microcrystalline cellulose, sucrose stearate, povidone K-30, ethylcellulose, hypromellose, talc, acetyl tributyl citrate. The 120 mg, 180 mg, 240 mg, 300 mg and 360 mg capsule shells contain FD&C Blue 1, titanium dioxide and gelatin. The 300 mg capsule shell also contain iron oxide black. The 120 mg capsule shells are imprinted with edible blue ink containing shellac and FD&C Blue # 2 Aluminum Lake. The 180 mg, 240 mg, 300 mg and 360 mg capsule shells are imprinted with edible white ink containing shellac, potassium hydroxide and titanium dioxide. For oral administration. FDA approved dissolution test specifications differ from USP. diltiazem-str.jpg

Divalproex sodium, USP is a stable co-ordination compound comprised of sodium valproate and valproic acid in a 1:1 molar relationship and formed during the partial neutralization of valproic acid with 0.5 equivalent of sodium hydroxide. Chemically it is designated as sodium hydrogen bis(2-propylpentanoate). Divalproex sodium has the following structure: Divalproex sodium, USP occurs as a white to off-white powder. Divalproex sodium delayed-release capsules, USP are for oral administration. Divalproex sodium delayed-release capsules, USP contain specially coated particles of divalproex sodium, USP equivalent to 125 mg of valproic acid in a hard gelatin capsule. Inactive Ingredients Divalproex sodium delayed-release capsules USP, 125 mg: sugar spheres (composed of sucrose, corn starch and water), ethyl cellulose, magnesium stearate, triethyl citrate and hypromellose. Hard gelatin capsule shell contains gelatin, titanium dioxide, FD&C Blue No.1 and D&C Red No. 28. The capsule shells are printed with edible black ink containing shellac, black iron oxide and potassium hydroxide. Meets USP Dissolution Test 2. divalproex-structure.jpg

Docetaxel is an antineoplastic agent belonging to the taxoid family. It is prepared by semisynthesis beginning with a precursor extracted from the renewable needle biomass of yew plants. The chemical name for docetaxel is (2R,3S)-N-carboxy-3-phenylisoserine,N-tert-butyl ester, 13-ester with 5β-20-epoxy-1,2α,4,7β,10β,13α-hexahydroxytax-11-en-9-one 4-acetate 2-benzoate. Docetaxel (anhydrous) has the following structural formula: Docetaxel is a white to almost-white powder with an empirical formula of C 43 H 53 NO 14 , and a molecular weight of 807.88. It is highly lipophilic and practically insoluble in water. Docetaxel Injection, USP is a sterile, non-pyrogenic, clear, colorless to pale yellow solution at 10 mg/mL concentration for Intravenous infusion only. Each mL contains 10 mg docetaxel (anhydrous) 260 mg polysorbate 80 NF, 4 mg anhydrous citric acid USP, 23% v/v dehydrated alcohol USP, and polyethylene glycol 300 NF. Docetaxel Injection is available in single-dose vials containing 20 mg (2 mL) docetaxel (anhydrous), and multiple-dose vials containing 80 mg (8 mL) or 160 mg (16 mL) docetaxel (anhydrous). Docetaxel Injection requires NO prior dilution with a diluent and is ready to add to the infusion solution. docetaxel-structure

Uses treats cold sores/fever blisters on the face or lips shortens healing time and duration of symptoms: • tingling, pain, burning, and/or itching

Dorzolamide hydrochloride ophthalmic solution, USP is a carbonic anhydrase inhibitor formulated for topical ophthalmic use. Dorzolamide hydrochloride, USP is described chemically as: (4 S , 6 S )-4-(ethylamino)-5,6-dihydro-6-methyl-4 H -thieno[2,3- b ]thiopyran-2-sulfonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride, USP is optically active. The specific rotation is α 25° (C=1, water) = ~ -17°. 405 Its empirical formula is C 10 H 16 N 2 O 4 S 3 ·HCl and its structural formula is: Dorzolamide hydrochloride, USP has a molecular weight of 360.9 and a melting point of about 259°C to 267°C. It is a white to off-white, crystalline powder, which is soluble in water, slightly soluble in methanol, very slightly soluble in anhydrous ethanol. Dorzolamide hydrochloride ophthalmic solution, USP is supplied as slightly opalescent, nearly colorless, slightly viscous solution, free from foreign visible particles. The pH of the solution is between 5.50 and 5.85, and the osmolarity is 260-330 mOsm/L. Each mL of Dorzolamide hydrochloride ophthalmic solution, USP 2% contains 20 mg dorzolamide (equivalent to 22.3 mg of dorzolamide hydrochloride, USP). Inactive ingredients are hydroxyethyl cellulose, mannitol, sodium citrate dihydrate, sodium hydroxide (to adjust pH) and water for injection. Benzalkonium chloride 0.0075% is added as a preservative. dorzolamide-structure

Dorzolamide hydrochloride and timolol maleate ophthalmic solution is the combination of a topical carbonic anhydrase inhibitor and a topical beta-adrenergic receptor blocking agent. Dorzolamide hydrochloride is described chemically as: (4 S-trans )-4-(ethylamino)-5,6-dihydro-6-methyl- 4H -thieno[2,3 -b ]thiopyran-2-sulfonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride is optically active. The specific rotation is: [α] 25°C (C=1, water) = ~ -17°. 405nm Its empirical formula is C 10 H 16 N 2 O 4 S 3 •HCl and its structural formula is: Dorzolamide hydrochloride has a molecular weight of 360.91. It is a white to off-white,crystalline powder, which is soluble in water and slightly soluble in methanol and ethanol. Timolol maleate is described chemically as: (-)-1-( tert -butylamino)-3-[(4-morpholino-1,2,5-thiadiazol-3-yl)oxy]-2-propanol maleate (1:1) (salt). Timolol maleate possesses an asymmetric carbon atom in its structure and is provided as the levo-isomer. The optical rotation of timolol maleate is: [α] 25°C in 1N HCl (C = 5) = -12.2° (-11.7° to -12.5°). 405nm Its molecular formula is C 13 H 24 N 4 O 3 S•C 4 H 4 O 4 and its structural formula is: Timolol maleate has a molecular weight of 432.50. It is a white, odorless, crystalline powder which is soluble in water, methanol, and alcohol. Timolol maleate is stable at room temperature. Dorzolamide hydrochloride and timolol maleate ophthalmic solution is supplied as a sterile, clear, colorless to nearly colorless, isotonic, buffered, slightly viscous, aqueous solution. The pH of the solution is approximately 5.65, and the osmolarity is 242 to 323 mOsM. Each mL of dorzolamide hydrochloride and timolol maleate ophthalmic solution contains 20 mg dorzolamide(equivalent to 22.26 mg of dorzolamide hydrochloride) and 5 mg timolol (equivalent to 6.83 mg timolol maleate). Inactive ingredients are sodium citrate, hydroxyethyl cellulose, sodium hydroxide, mannitol, and water for injection. Benzalkonium chloride 0.0075% is added as a preservative. dorzolamide-structure dorzolamide-timolol-structure

Doxepin hydrochloride, USP is one of a class of psychotherapeutic agents known as dibenzoxepin tricyclic compounds. The molecular formula of the compound is C 19 H 21 NO•HCl having a molecular weight of 316. It is a white or almost white crystalline powder. It is freely soluble in water, in alcohol and in methylene chloride. Doxepin HCl is a dibenzoxepin derivative and is the first of a family of tricyclic psychotherapeutic agents. Specifically, it is an isomeric mixture of: 1-Propanamine, 3-dibenz[ b,e ]oxepin-11(6H)ylidene- N,N -dimethyl-, hydrochloride. Doxepin Hydrochloride Inactive Ingredients : Microcrystalline cellulose, sodium lauryl sulfate, pregelatinized starch, colloidal silicon dioxide and magnesium stearate. The capsule shell contains titanium dioxide, iron oxide yellow, gelatin, sodium lauryl sulfate. Additionally, 75 mg and 100 mg capsule shell also contains FD&C Blue 1. The capsule shells are printed with edible black ink containing shellac, iron oxide black and potassium hydroxide. FDA approved dissolution method differs from the USP dissolution method. structure

The active ingredient in Doxorubicin hydrochloride liposome injection is doxorubicin hydrochloride, an anthracycline topoisomerase inhibitor, that is encapsulated in pegylated liposomes for intravenous use. The chemical name of doxorubicin hydrochloride is (8S,10S)-10-[(3-amino-2,3,6-trideoxy-α-L-lyxo-hexopyranosyl)oxy]-8-glycolyl-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-5,12-naphthacenedione hydrochloride. The molecular formula is C 27 H 29 NO 11 •HCl and the molecular weight is 579.99. The structural formula is: Doxorubicin hydrochloride liposome injection is a sterile, translucent, red liposomal dispersion. Each single-dose vial contains 20 mg or 50 mg doxorubicin hydrochloride at a concentration of 2 mg/mL (equivalent to 1.87 mg/mL of doxorubicin). The pegylated liposome carriers are composed of cholesterol, 3.19 mg/mL; fully hydrogenated soy phosphatidylcholine (HSPC), 9.58 mg/mL; and N-(carbonyl-methoxypolyethylene glycol 2000)-1,2-distearoyl-sn-glycero-3-phosphoethanolamine sodium salt (MPEG-DSPE), 3.19 mg/mL. Each mL also contains ammonium sulfate, approximately 0.6 mg; histidine, 1.55 mg as a buffer; hydrochloric acid and/or sodium hydroxide may have been added for pH adjustment (6.0 to 7.0); and sucrose, 94 mg to maintain isotonicity. Greater than 90% of the drug is encapsulated in the pegylated liposomes. MPEG-DSPE has the following structural formula: HSPC has the following structural formula: Representation of a pegylated liposome: doxorubicin-structure. doxorubicin-mpeg-dspe doxorubicin-hspe doxorubicin-pegylated-liposome

Doxycycline capsules 40 mg are hard gelatin capsule shells filled with two types of doxycycline pellets (24 mg immediate release and 16 mg delayed release) that together provide a dose of 40 mg of anhydrous doxycycline (C 22 H 24 N 2 O 8 ). The structural formula of doxycycline, USP is: with an empirical 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 2-Naphthacenecar-boxamide,4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-, [4S-(4α, 4aα, 5α, 5aα, 6α,12aα)]-, monohydrate. It is very slightly soluble in water and in alcohol, practically insoluble in ether. It dissolves in dilute solutions of mineral acids and in solutions of alkali hydroxides and carbonates. Inert ingredients in the formulation are: Sugar spheres (composed of sucrose, corn starch and purified water), hypromellose, talc, polysorbate 80, methacrylic acid copolymer, triethyl citrate and FD&C Red No. 40 Aluminum Lake. Hard gelatin capsule shell contains iron oxide black, iron oxide red, iron oxide yellow, titanium dioxide and gelatin. The capsule shells are printed with edible black ink containing shellac, iron oxide black and potassium hydroxide. FDA approved dissolution test method and specifications differ from USP. doxycycline-str.jpg

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 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: microcrystalline cellulose, lactose anhydrous, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, polyvinyl alcohol, titanium dioxide, polyethylene glycol, and talc. 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 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 delayed-release tablets, USP for oral administration, contain specially coated pellets of doxycycline hyclate, USP, a broad-spectrum antibacterial synthetically derived from oxytetracycline, in a delayed-release formulation for oral administration. The structural formula for doxycycline hyclate, USP 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 designation 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, USP is a yellow to light yellow powder, 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 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 in the tablet formulation are: microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, sodium chloride, povidone (K-30), hypromellose, talc, hypromellose phthalate, triethyl citrate, polyethylene glycol 6000, corn starch, lactose anhydrous, low substituted hydroxypropyl cellulose, crospovidone, colloidal silicon dioxide and magnesium stearate. This drug product meets USP Dissolution Test 5. doxycycline-structure.jpg

Doxycycline hyclate, USP is an antibacterial drug synthetically derived from oxytetracycline. The structural formula of doxycycline monohydrate is 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,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C22H24N2O8•HCl)2•C2H6O•H2O 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. Inert ingredients are microcrystalline cellulose, pregelatinized starch, hydroxypropyl cellulose, croscarmellose sodium, magnesium stearate, hypromellose, titanium dioxide, polyethylene glycol 6000, FD&C Blue No. 2 Aluminium Lake, and FD&C Yellow No. 6 Aluminium Lake. FDA approved dissolution test specifications differ from USP. doxycycline-str.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 microcrystalline cellulose, colloidal silicon dioxide, magnesium stearate. 50 mg and 100 mg capsule shell contains FD&C Blue No. 1, gelatin, and titanium dioxide. The printing ink contains shellac, propylene glycol, potassium hydroxide and iron oxide black. Structure

Entacapone is available as tablets containing 200 mg entacapone, USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are microcrystalline cellulose, mannitol, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hydrogenated vegetable oil, hypromellose, glycerin, titanium dioxide, iron oxide yellow, sucrose, polysorbate 80 and iron oxide red. FDA approved dissolution testing specifications differ from USP. structure

Erlotinib, a kinase inhibitor, is a quinazolinamine with the chemical name N-(3-ethynylphenyl)-6,7-bis(2-methoxyethoxy)-4-quinazolinamine. Erlotinib tablet contains erlotinib as the hydrochloride salt that has the following structural formula: Erlotinib hydrochloride has the molecular formula C 22 H 23 N 3 O 4 .HCl and a molecular weight of 429.9. The molecule has a pKa of 5.42 at 25°C. It is freely soluble in formic acid, very slightly soluble in N,N-Dimethyl formamide and practically insoluble in water. Erlotinib tablets for oral administration are available in three dosage strengths containing erlotinib hydrochloride (27.3 mg, 109.3 mg and 163.9 mg) equivalent to 25 mg, 100 mg and 150 mg erlotinib and the following inactive ingredients: lactose monohydrate, microcrystalline cellulose, sodium starch glycolate, magnesium stearate and sodium lauryl sulfate. The film-coat inactive ingredients are hypromellose, hydroxypropyl cellulose, titanium dioxide and polyethylene glycol 400. Structure

Erythromycin tablets, USP are an antibacterial product containing erythromycin, USP, in a unique, nonenteric film coating for oral administration. Erythromycin Tablets are available in two strengths containing either 250 mg or 500 mg of erythromycin base. Erythromycin is produced by a strain of Saccharopolyspora erythraea (formerly Streptomyces erythraeus ) and belongs to the macrolide group of antibiotics. It is basic and readily forms salts with acids. Erythromycin is a white or slightly yellow, crystalline powder, slightly soluble in water and soluble in alcohol and chloroform. Erythromycin is known chemically as (3R*, 4S*, 5S*, 6R*, 7R*, 9R*, 11R*, 12R*, 13S*, 14R*)-4-[(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L- ribo -hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-6-[[3,4,6-trideoxy-3-(dimethylamino)-β-D- xylo -hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione. The molecular formula is C 37 H 67 NO 13 , and the molecular weight is 733.94. The structural formula is: Inactive Ingredients Microcrystalline cellulose, crospovidone, povidone K 90, hypromellose, poloxamer 188, sodium citrate, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hypromellose phthalate, sodium hydroxide, hydroxypropyl cellulose, polyethylene glycol, titanium dioxide, talc, propylene glycol, sorbitan monooleate and D&C Red #30/helendon pink aluminum lake. structure

The active ingredient in famotidine tablets, USP is a histamine H 2 -receptor antagonist. Famotidine is N '-(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl] thio]propanimidamide. The empirical formula of famotidine is C 8 H 15 N 7 O 2 S 3 and its molecular weight is 337.43. Its structural formula is: Famotidine is a white to pale yellow crystalline compound that is freely soluble in glacial acetic acid, slightly soluble in methanol, very slightly soluble in water, and practically insoluble in ethanol. Each tablet for oral administration contains either 20 mg or 40 mg of famotidine and the following inactive ingredients: colloidal silicon dioxide, yellow iron oxide and red iron oxide, Lecithin, macrogel/PEG 3350, magnesium stearate, microcrystalline cellulose, polyvinyl alcohol, pregelatinized starch, talc and titanium dioxide. Structure

Febuxostat is a xanthine oxidase inhibitor. The active ingredient in febuxostat tablet is 2-[3-cyano-­4-(2-methylpropoxy) phenyl]-4-methylthiazole-5-carboxylic acid, with a molecular weight of 316.38. The empirical formula is C 16 H 16 N 2 O 3 S. The chemical structure is: Febuxostat is a non-hygroscopic, white to off white powder that is freely soluble in N,N-dimethylformamide; soluble in dimethyl sulfoxide; sparingly soluble in ethanol; slightly soluble in methanol and acetonitrile; and practically insoluble in water. The melting range is 201°C to 208°C. Febuxostat tablets for oral use contain the active ingredient, febuxostat, and are available in two dosage strengths, 40 mg and 80 mg. Inactive ingredients include: lactose monohydrate, microcrystalline cellulose, hydroxypropyl cellulose, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate and polyvinyl alcohol, talc, polyethylene glycol 3000, titanium dioxide, D&C yellow No. 10 aluminum Lake, FD&C blue No. 1 aluminum lake and FD&C blue No. 2 aluminum lake. Structure

Fenofibrate, USP (micronized), is a lipid regulating agent available as capsules for oral administration. Each capsule contains 67 mg, 134 mg or 200 mg of micronized fenofibrate, USP. The chemical name for fenofibrate, USP is 2-[4-(4-chlorobenzoyl) phenoxy]-2-methyl-propanoic acid,1-methylethyl ester with the following structural formula: The empirical formula is C 20 H 21 O 4 Cl and the molecular weight is 360.83; fenofibrate, USP is very soluble in methylene chloride; slightly soluble in alcohol; practically insoluble in water. The melting point is 79 to 82°C. Fenofibrate, USP is a white or almost white crystalline powder which is stable under ordinary conditions. Each 67 mg fenofibrate capsule, USP (micronized) contains the following inactive ingredients: microcrystalline cellulose, croscarmellose sodium, hypromellose, sodium lauryl sulphate, magnesium stearate, titanium dioxide, gelatin, FD&C Yellow No. 6 and D&C Yellow No.10. Each 134 mg fenofibrate capsule, USP (micronized) contains the following inactive ingredients: microcrystalline cellulose, croscarmellose sodium, hypromellose, sodium lauryl sulphate, magnesium stearate, titanium dioxide and gelatin. Each 200 mg fenofibrate capsule, USP (micronized) contains the following inactive ingredients: microcrystalline cellulose, croscarmellose sodium, hypromellose, sodium lauryl sulphate, magnesium stearate, D&C Red No. 28, FD&C Red No. 40, D&C Yellow No.10, titanium dioxide and gelatin. The printing ink contains shellac, potassium hydroxide and iron oxide black. FDA approved dissolution test specifications differ from USP. fenofibrate-structure