strides pharma science limited - Medication Listings

Omeprazole and sodium bicarbonate for oral suspension is a combination of omeprazole, a proton-pump inhibitor, and sodium bicarbonate, an antacid. Omeprazole is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1 H -benzimidazole, a racemic mixture of two enantiomers that inhibits gastric acid secretion. Its empirical formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42. The structural formula is: Omeprazole is a white to off-white crystalline powder which melts with decomposition at about 155°C. It is a weak base, freely soluble in ethanol and methanol, and slightly soluble in acetone and isopropanol and very slightly soluble in water. The stability of omeprazole is a function of pH; it is rapidly degraded in acid media, but has acceptable stability under alkaline conditions. Omeprazole and sodium bicarbonate is supplied as unit dose packets for oral suspension. Packets of powder for oral suspension contain either 40 mg or 20 mg of omeprazole and 1,680 mg of sodium bicarbonate with the following excipients: xylitol, xanthan gum, sucralose powder, peach powder, sucrose and peppermint flavor. Omeprazole and sodium bicarbonate for oral suspension is immediate-release formulations that contain sodium bicarbonate which raises the gastric pH and thus protects omeprazole from acid degradation. This is the structured formula

Losartan potassium, USP is an angiotensin II receptor blocker acting on the AT1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[p-(o-1H-tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt. Its empirical formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium is a white to off-white free-flowing crystalline powder with a molecular weight of 461.01. It is freely soluble in water, soluble in alcohols, and slightly soluble in common organic solvents, such as acetonitrile and methyl ethyl ketone. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium, USP is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium and the following inactive ingredients: croscarmellose sodium, hypromellose, magnesium stearate, mannitol, microcrystalline cellulose, povidone, propylene glycol, talc, and titanium dioxide. Losartan potassium tablets, USP 25 mg, 50 mg and 100 mg contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. image001

The active ingredient in Gabapentin Capsules USP is gabapentin, which has the chemical name 1-(aminomethyl) cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin is a white to off-white crystalline solid with a pK a1 of 3.7 and a pK a2 of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is –1.25. Each Gabapentin capsule contains 100 mg, 300 mg, or 400 mg of gabapentin and the following inactive ingredients: Pregelatinized Maize starch, talc, gelatin, titanium dioxide, yellow iron oxide (300 mg and 400 mg only), and red iron oxide (300 mg and 400 mg only), black iron oxide (300 mg and 400 mg only). Ingredients of Imprinting Ink (Black SW-9049) are Black Iron Oxide NF (E 172), Butyl Alcohol NF, Dehydrated Alcohol USP, Isopropyl Alcohol USP, Potassium Hydroxide NF, Propylene Glycol USP, Shellac NF, and Strong Ammonia Solution NF. figure1

The active ingredient in gabapentin tablets, USP is gabapentin, which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin is a white to off-white crystalline solid with a pKa1 of 3.7 and a pKa2 of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is –1.25. Each gabapentin tablet contains 600 mg or 800 mg of gabapentin and the following inactive ingredients: copovidone, hydroxyl propyl cellulose, magnesium stearate, mannitol, poloxamer, talc, low-substituted hydroxypropyl cellulose, polyvinyl alcohol, polyethylene glycol, titanium dioxide, and talc Image

The active ingredient in gabapentin capsules USP is gabapentin, which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin, USP is a white to off-white crystalline powder with a pH of 6.5 – 7.5. It is freely soluble in water and sparingly soluble in methanol. Each gabapentin capsule contains 100 mg, 300mg or 400 mg of gabapentin and the following inactive ingredients: Corn starch, magnesium stearate, mannitol and talc. The 100mg capsule shell contains gelatin, titanium dioxide, and water. The 300mg capsule shell contains gelatin, iron oxide yellow, titanium dioxide and water. The 400mg capsule shell contains FD&C Blue #1, FD&C Yellow #6, gelatin, titanium dioxide and water. The imprinting ink Green Tek SB 4027 contains shellac, iron oxide yellow & FD & C Blue # 1 Aluminum Lake. The imprinting ink Blue Tek SB 6018 contains Shellac and FD & C Blue # 2 Aluminum Lake. Image

Prednisone Tablets USP are available for oral administration containing 1 mg of prednisone USP. Each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch (maize starch), sodium starch glycolate. Prednisone tablets USP contain prednisone which is a glucocorticoid. Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, which are readily absorbed from the gastrointestinal tract. The chemical name for prednisone is 17, 21-dihydroxypregna-1,4-diene-3,11,20-trione. The structural formula is represented below: Prednisone is a white to partially white, crystalline powder. It is very slightly soluble in water; slightly soluble in alcohol, chloroform, dioxane, and methanol. FDA approved dissolution test specifications differ from USP. Structure

Prednisone Tablets USP are available for oral administration containing either 2.5 mg and 5 mg of prednisone USP. Each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch (maize starch), sodium starch glycolate. Prednisone tablets USP contain prednisone which is a glucocorticoid. Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, which are readily absorbed from the gastrointestinal tract. The chemical name for prednisone is 17, 21-dihydroxypregna-1,4-diene-3,11,20-trione. The structural formula is represented below: Prednisone is a white to practically white, odorless, crystalline powder. It is very slightly soluble in water; slightly soluble in alcohol, chloroform, dioxane, and methanol. FDA approved dissolution test specifications differ from USP. Structure

Each tablet for oral administration contains: Prednisone Tablets USP…………………………………… 10 mg, 20 mg and 50 mg Inactive Ingredients The tablets contain lactose monohydrate, microcrystalline cellulose, pregelatinized starch (maize starch), sodium starch glycolate and magnesium stearate. Prednisone tablets USP contain prednisone USP, which is a glucocorticoid. Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, which are readily absorbed from the gastrointestinal tract. The chemical name for prednisone is pregna-1,4-diene-3,11,20-trione monohydrate,17,21-dihydroxy The structural formula is represented below: Prednisone is a white to practically white, odorless, crystalline powder. It is very slightly soluble in water; slightly soluble in alcohol, chloroform, dioxane, and methanol. FDA approved dissolution test specifications differ from USP. structure-prednisone

Fluoxetine is a selective serotonin reuptake inhibitor for oral administration. It is also marketed for the treatment of premenstrual dysphoric disorder (Sarafem ® , fluoxetine hydrochloride). It is designated (±)- N -methyl-3-phenyl-3-[(α,α,α-trifluoro- p -tolyl)oxy]propylamine hydrochloride and has the molecular formula of C 17 H 18 F 3 NO.HCl. Its molecular weight is 345.79. The structural formula is: Fluoxetine hydrochloride, USP is a white to off-white crystalline solid with a solubility of 14 mg/mL in water. Each tablet contains fluoxetine hydrochloride equivalent to 10 mg (32.3 µmol) or 20 mg (64.7 µmol) of fluoxetine. In addition, each tablet also contains the following inactive ingredients: colloidal silicon dioxide, crospovidone, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, Pre-gelatinized Starch and titanium dioxide. Fluoxetine Structural Formula

The active ingredient in Ibuprofen oral suspension, USP 100 mg/5 mL is ibuprofen, which is a member of the propionic acid group of nonsteroidal anti-inflammatory drugs (NSAIDs). Ibuprofen is a racemic mixture of [+]S- and [-]R-enantiomers. It is a white to off-white, crystalline powder, with a melting point of 75° to 78°C. It is practically insoluble in water (<0.1 mg/mL), but readily soluble in organic solvents such as ethanol and acetone. Ibuprofen has a pKa of 4.43±0.03 and an n-octanol/water partition coefficient of 11.7 at pH 7.4. The chemical name for ibuprofen is (±)-2-(p-isobutylphenyl) propionic acid. The molecular weight of ibuprofen is 206.28. Its molecular formula is C 13 H 18 O 2 and it has the following structural formula: Ibuprofen oral suspension, USP 100 mg/5 mL is a sucrose-sweetened, pale yellow to orange color suspension with mixed berry flavor, containing 100 mg of ibuprofen in 5 mL (20 mg/mL). Inactive ingredients include: acesulfame potassium, anhydrous citric acid, D&C yellow #10, FD&C red #40, glycerin, hypromellose, mix berry flavor (natural and artificial flavor and propylene glycol), polysorbate 80, purified water, sodium benzoate, sucrose and xanthan gum. Image

Ibuprofen tablets contain the active ingredient ibuprofen, which is (±) - 2 - ( p - isobutylphenyl) propionic acid. Ibuprofen is a white powder with a melting point of 74° to 77° C and is very slightly soluble in water (<1 mg/mL) and readily soluble in organic solvents such as ethanol and acetone. The structural formula is represented below: Ibuprofen tablets, a nonsteroidal anti-inflammatory drug (NSAID), is available in 400 mg, 600 mg, and 800 mg tablets for oral administration. Inactive ingredients: colloidal silicon dioxide, microcrystalline cellulose, pregelatinized starch, sodium starch glycolate, talc, magnesium stearate, Opadry II contains hypromellose, polyethylene glycol, sodium citrate, lactose monohydrate and titanium dioxide. chem structure

Each scored oxybutynin chloride tablet contains 5 mg of oxybutynin chloride. Chemically, oxybutynin chloride is 4-diethylamino-2-butynyl phenylcyclohexylglycolate hydrochloride. The empirical formula of oxybutynin chloride is C 22 H 31 NO 3 . HCl. The structural formula appears below: Oxybutynin chloride is a white crystalline solid with a molecular weight of 393.96. It is readily soluble in water and acids, but relatively insoluble in alkalis. INACTIVE INGREDIENT Oxybutynin Chloride Tablets also contain: FD&C Blue #1 lake, magnesium stearate, microcrystalline cellulose, and pregelatinized starch. Oxybutynin Chloride Tablets are for oral administration. Therapeutic Category: Antispasmodic, anticholinergic. Meets USP Dissolution Test 2 This is an image of the structural formula for Oxybutynin Chloride.

Tramadol hydrochloride tablets USP, for oral use, are an opioid agonist. The chemical name for tramadolhydrochloride is (±) cis-2-[(dimethylamino)methyl]-1-(3-methoxyphenyl) cyclohexanol hydrochloride. The structural formula is: The molecular weight of tramadol hydrochloride is 299.8. Tramadol hydrochloride is a white, bitter, crystalline and odorless powder. It is readily soluble in water and ethanol and has a pKa of 9.41. The n-octanol/water log partition coefficient (logP) is 1.35 at pH 7. Tramadol hydrochloride tablets contain 50 mg of tramadol hydrochloride and are white in color. Inactive ingredients are magnesium stearate, microcrystalline cellulose, milled lactose monohydrate, Opadry White 13B58802, Pregelatinized Starch, sodium starch glycolate. Structure

Acarbose Tablets are an oral alpha-glucosidase inhibitor for use in the management of type 2 diabetes mellitus. Acarbose is an oligosaccharide which is obtained from fermentation processes of a microorganism, Actinoplanes utahensis, and is chemically known as O-4,6-dideoxy- 4-[[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)-2-cyclohexen-1-yl]amino]- α-D-glucopyranosyl-(1 → 4)-O-α-D-glucopyranosyl-(1 → 4)-D-glucose. It is a white to off-white powder with a molecular weight of 645.6. Acarbose is soluble in water and has a pK a of 5.1. Its empirical formula is C 25 H 43 NO 18 and its chemical structure is as follows: Acarbose Tablets are available as 25 mg, 50 mg and 100 mg for oral use. The inactive ingredients are starch, microcrystalline cellulose, magnesium stearate, and colloidal silicon dioxide. image

Zafirlukast is a synthetic, selective peptide leukotriene receptor antagonist (LTRA), with the chemical name 4-(5-cyclopentyloxy-carbonylamino-1-methyl-indol-3-ylmethyl)-3-methoxy-N-o-tolylsulfonylbenzamide. The molecular weight of zafirlukast is 575.7 and the structural formula is: The empirical formula is: C 31 H 33 N 3 O 6 S Zafirlukast, a fine white to pale yellow amorphous powder, is practically insoluble in water. It is slightly soluble in methanol and freely soluble in tetrahydrofuran, dimethylsulfoxide, and acetone. ACCOLATE is supplied as 10 and 20 mg tablets for oral administration. Inactive Ingredients: Film-coated tablets containing croscarmellose sodium, lactose, magnesium stearate, microcrystalline cellulose, povidone, hypromellose, and titanium dioxide. structure

Acetaminophen and codeine phosphate tablets are supplied in tablet form for oral administration. Acetaminophen, 4'-hydroxyacetanilide, a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula: C 8 H 9 NO 2 M.W. 151.16 Codeine phosphate, 7,8-didehydro-4, 5α-epoxy-3-methoxy-17-methylmorphinan-6α- ol phosphate (1:1) (salt) hemihydrate, a white crystalline powder, is a narcotic analgesic and antitussive. It has the following structural formula: C 18 H 21 NO 3 •H 3 PO 4 •1/2 H 2 O M.W. 406.37 Each Acetaminophen and Codeine Phosphate Tablet, USP (300 mg/15 mg) contains: Acetaminophen USP………………..…300 mg Codeine Phosphate USP……………….15 mg Each Acetaminophen and Codeine Phosphate Tablet, USP (300 mg/30 mg) contains: Acetaminophen USP…………………300 mg Codeine Phosphate USP………………30 mg Each Acetaminophen and Codeine Phosphate Tablet, USP (300 mg/60 mg) contains: Acetaminophen USP…………………300 mg Codeine Phosphate USP………………60 mg In addition, each tablet contains the following inactive ingredients: magnesium stearate, microcrystalline cellulose, povidone, pregelatinized corn starch, sodium metabisulfite, sodium starch glycolate and stearic acid. Acetaminophen structure Codeine phosphate structure

Acetazolamide, an inhibitor of the enzyme carbonic anhydrase is a white to faintly yellowish white crystalline, odorless powder, very slightly soluble in water, sparingly soluble in practically boiling water and slightly soluble in alcohol. The chemical name for acetazolamide is N -(5-Sulfamoyl-1,3,4-thiadiazol-2-yl) acetamide and has the following chemical structure: Molecular Weight: 222.25 Molecular Formula: C 4 H 6 N 4 O 3 S 2 Acetazolamide is available as oral tablets containing 125 mg and 250 mg of acetazolamide, respectively, and the following inactive ingredients: corn starch, gelatin, glycerin, lactose monohydrate, magnesium stearate, sodium starch glycolate (Potato) and talc. acetazolamide-structure

Amantadine hydrochloride, USP is designated chemically as 1-adamantanamine hydrochloride. Its molecular weight is 187.71 with a molecular formula C 10 H 18 NCl. It has the following structural formula: Amantadine hydrochloride, USP is a stable white or nearly white crystalline powder, freely soluble in water and soluble in alcohol and in chloroform. Amantadine hydrochloride, USP has pharmacological actions as both an anti-Parkinson and an antiviral drug. Amantadine hydrochloride, USP is available as 100 mg capsules for oral administration. Inactive ingredients: soyabean oil, lecithin, hydrogenated vegetable oil (type 1), white wax and simethicone emulsion-30%. The capsule shells contains gelatin, glycerin, sorbitol sorbitan solution, titanium dioxide, ferric oxide, purified water, opacode black ink (ferrosoferric oxide, propylene glycol, shellac glaze). FDA approved dissolution specification differs from the USP dissolution specification. structure

Amlodipine and valsartan,USP is a fixed combination of amlodipine and valsartan. Amlodipine and valsartan contains the besylate salt of amlodipine, a dihydropyridine calcium-channel blocker (CCB). Amlodipine besylate is a white to pale yellow crystalline powder, slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate's chemical name is 3-Ethyl-5-methyl(4RS)-2-[(2-aminoethoxy)methyl]-4-(2‑ chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate benzenesulphonate; its structural formula is: Its empirical formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S and its molecular weight is 567.1. Valsartan is a nonpeptide, orally active, and specific angiotensin II antagonist acting on the AT 1 receptor subtype. Valsartan is a white to practically white fine powder, soluble in ethanol and methanol and slightly soluble in water. Valsartan's chemical name is N-(1-oxopentyl)-N-[[2'-(1H-tetrazol-5-yl) [1,1'-biphenyl]-4-yl]methyl]-L-valine; its structural formula is: Its empirical formula is C 24 H 29 N 5 O 3 and its molecular weight is 435.5. Amlodipine and valsartan tablets are formulated in 4 strengths for oral administration with a combination of amlodipine besylate, equivalent to 5 mg or 10 mg of amlodipine free-base, with 160 mg or 320 mg of valsartan providing for the following available combinations: 5/160 mg, 10/160 mg, 5/320 mg and 10/320 mg. The inactive ingredients for all strengths of the tablets are colloidal silicon dioxide, crospovidone, magnesium stearate and microcrystalline cellulose. The film coating contains polyethylene glycol, polyvinyl alcohol, talc and titanium dioxide. Amlodipine chemical structure Valsartan chemical structure

Amlodipine/valsartan/hydrochlorothiazide is a fixed combination of amlodipine, valsartan and hydrochlorothiazide. Amlodipine/valsartan/hydrochlorothiazide contains the besylate salt of amlodipine, a dihydropyridine calcium channel blocker (CCB). Amlodipine besylate, USP is a white to pale yellow crystalline powder, slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate's chemical name is 3-Ethyl 5-methyl (±)-2-[(2-aminoethoxy)methyl]4-( o -chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulfonate; its structural formula is: Its empirical formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S and its molecular weight is 567.1. Valsartan, USP is a nonpeptide, orally active, and specific angiotensin II antagonist acting on the AT1 receptor subtype. Valsartan is a white to practically white fine powder, soluble in ethanol and methanol and slightly soluble in water. Valsartan's chemical name is N-(1-oxopentyl)-N-[[2′-(1 H -tetrazol-5-yl) [1,1′-biphenyl]-4-yl]methyl]-L-valine; its structural formula is: Its empirical formula is C 24 H 29 N 5 O 3 and its molecular weight is 435.5. Hydrochlorothiazide, USP is a white, or practically white, practically odorless, crystalline powder. It is slightly soluble in water; freely soluble in sodium hydroxide solution, in n -butylamine, and in dimethylformamide; sparingly soluble in methanol; and insoluble in ether, in chloroform, and in dilute mineral acids. Hydrochlorothiazide is chemically described as 6-chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide. Hydrochlorothiazide is a thiazide diuretic. Its empirical formula is C 7 H 8 ClN 3 O 4 S 2 , its molecular weight is 297.73, and its structural formula is: Amlodipine/valsartan/hydrochlorothiazide film-coated tablets are formulated in five strengths for oral administration with a combination of amlodipine besylate, valsartan and hydrochlorothiazide, providing for the following available combinations: 5/160/12.5 mg, 10/160/12.5 mg, 5/160/25 mg, 10/160/25 mg and 10/320/25 mg amlodipine besylate/valsartan/hydrochlo rothiazide. The inactive ingredients for all strengths of the tablets include microcrystalline cellulose, crospovidone, colloidal silicon dioxide, and magnesium stearate, Additionally, the 5/160/12.5 mg strength contains polyethylene glycol, polyvinyl alcohol, titanium dioxide and talc; the 10/320/25 mg strength contains the same ingredients as the 5/160/12.5 mg strength; the 5/160/25 mg strength contains lactose monohydrate, hypromellose, triacetin, D&C Yellow #10, titanium dioxide, and FD&C Yellow #6; the 10/160/12.5 mg strength contains FD&C Yellow #6, triethyl citrate, yellow iron oxide, hypromellose and titanium dioxide, lactose monohydrate; and the 10/160/25 mg strength contains hypromellose, titanium dioxide, D&C Yellow #10, macrogol and polysorbate. amlodipine-structure Valsartan-structure HCTZ-structure

Atomoxetine capsules, USP are a selective norepinephrine reuptake inhibitor. Atomoxetine hydrochloride is the R (-) isomer as determined by x-ray diffraction. The chemical designation is (-)- N -Methyl-3-phenyl-3-( o -tolyloxy)-propylamine hydrochloride. The molecular formula is C 17 H 21 NO•HCl, which corresponds to a molecular weight of 291.82. The chemical structure is: Atomoxetine hydrochloride, USP is a white to practically white solid, which has a solubility of 27.8 mg/mL in water. Atomoxetine capsules are intended for oral administration only. Each capsule contains atomoxetine hydrochloride equivalent to 10, 18, 25, 40, 60, 80 or 100 mg of atomoxetine. The capsules also contain colloidal silicon dioxide, gelatin, magnesium stearate, pregelatinized starch (corn), sodium lauryl sulfate and titanium dioxide. The 10 mg capsules also contain D&C Yellow No. 10, D&C Red No. 28, D&C Red No. 33, FD&C Red No. 40 and FD&C Yellow No. 6; the 18 mg capsules also contain D&C Red No. 28, D&C Yellow No. 10, FD&C Red No. 40 and FD&C Yellow No. 6; the 25 mg capsules also contain FD&C Blue No. 1 and FD&C Red No. 3; the 40 mg capsules also contain D&C Red No. 28 and FD&C Blue No. 1; the 60 mg capsules also contain D&C Red No. 28, D&C Yellow No. 10, FD&C Blue No. 1 and FD&C Yellow No. 6; the 80 mg capsules also contain D&C Red No. 28, D&C Yellow No. 10 and FD&C Yellow No. 6; the 100 mg capsules also contain D&C Yellow No. 10, FD&C Red No. 3, FD&C Yellow No. 6 and red iron oxide. In addition, the imprinting ink contains the following: black iron oxide, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, D&C Yellow No. 10 Aluminum Lake, propylene glycol and shellac glaze. Image

Benzonatate capsules USP a non-narcotic oral antitussive agent, is 2, 5, 8, 11, 14, 17, 20, 23, 26-nonaoxaoctacosan-28-yl p-(butylamino) benzoate; with a molecular weight of 603.7. structure Each benzonatate capsule USP, 100 mg contains: Benzonatate USP 100 mg Each benzonatate capsule USP, 200 mg contains: Benzonatate USP 200 mg Benzonatate capsules USP also contain: D&C Yellow 10, gelatin, glycerin, methylparaben, propylparaben and purified water. Ingredients of the imprinting ink are: Propylene glycol, shellac resins, sodium lauryl sulphate, isopropyl alcohol and titanium dioxide. structure

Buspirone hydrochloride is an antianxiety agent that is not chemically or pharmacologically related to the benzodiazepines, barbiturates, or other sedative/anxiolytic drugs. Buspirone hydrochloride is a white crystalline, water soluble compound with a molecular weight of 422.0. Chemically, buspirone hydrochloride is 8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4,5]decane-7,9-dione monohydrochloride. The empirical formula C 21 H 31 N 5 O 2 .HCl is represented by the following structural formula: Buspirone hydrochloride tablets, USP for oral administration, contains 5 mg, 7.5 mg, 10 mg, 15 mg or 30 mg of buspirone hydrochloride, USP (equivalent to 4.6 mg, 6.9 mg, 9.1 mg, 13.7 mg and 27.4 mg of buspirone free base respectively). The 5 mg and 10 mg tablets are scored so they can be bisected. Thus, the 5 mg tablet can also provide a 2.5 mg dose, and the 10 mg tablet can provide a 5 mg dose. The 15 mg tablets are scored such that they may be bisected or trisected. Thus, a single 15 mg tablet can provide the following doses: 15 mg (entire tablet), 10 mg (two thirds of a tablet), 7.5 mg (one-half of a tablet), or 5 mg (one-third of a tablet). The 30 mg tablets are scored such that they may be bisected or trisected. A single 30 mg tablet can provide the following doses: 30 mg (entire tablet), 20 mg (two-thirds of a tablet), 15 mg (one-half of a tablet), or 10 mg (one-third of a tablet). Buspirone hydrochloride tablets, USP contain the following inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and sodium starch glycolate. structure

Butalbital, Acetaminophen and Caffeine Tablets, USP are supplied in tablet form for oral administration. Each tablet contains the following active ingredients: butalbital, USP ...................................................................................... 50 mg acetaminophen, USP ........................................................................... 325 mg caffeine, USP ........................................................................................ 40 mg Inactive Ingredients: colloidal silicon dioxide, croscarmellose sodium, crospovidone, magnesium stearate, microcrystalline cellulose, povidone, pregelatinized starch, and stearic acid. Butalbital (5-allyl-5-isobutylbarbituric acid), is a short to intermediate-acting barbiturate. It has the following structural formula: Chemical Formula Acetaminophen (4'-hydroxyacetanilide), is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula. Chemical formula Caffeine (1,3,7-trimethylxanthine), is a central nervous system stimulant. It has the following structural formula: Chemical formula Chemical Formula Butalbital Chemical formula Aceta Chemical formula caff

Cabergoline Tablets, USP contain cabergoline USP, a dopamine receptor agonist. The chemical name for cabergoline USP is 1-[(6-allylergolin-8ß-yl)-carbonyl]-1-[3-(dimethylamino)propyl]-3-ethylurea. Its molecular formula is C 26 H 37 N 5 O 2 , and its molecular weight is 451.62. The structural formula is as follows: structure Cabergoline USP is a white powder soluble in ethyl alcohol, chloroform, and N, N-dimethylformamide (DMF); slightly soluble in 0.1N hydrochloric acid; very slightly soluble in n-hexane; and insoluble in water. Each tablet, for oral administration, contains 0.5 mg of cabergoline USP. Inactive ingredients consist of citric acid, croscarmellose sodium, magnesium stearate and microcrystalline cellulose. structural formula

Calcitriol is a synthetic vitamin D analog which is active in the regulation of the absorption of calcium from the gastrointestinal tract and its utilization in the body. Calcitriol is available as capsules containing 0.25 mcg or 0.5 mcg calcitriol All dosage forms contain butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) as antioxidants. The capsules contain medium chain triglycerides. Gelatin capsule shells contain glycerin, sorbitol, with the following dye systems: 0.25-mcg FD&C Yellow No. 6, FD&C red No.3 and titanium dioxide; 0.5 mcg- FD&C Yellow No. 6, FD&C red No.3 and titanium dioxide. The imprinting ink contains propylene glycol, shellac, black iron oxide, isopropyl alcohol, N-butyl alcohol and ammonium hydroxide. Calcitriol is a white, crystalline compound which occurs naturally in humans. It has a calculated molecular weight of 416.65 and is soluble in organic solvents but relatively insoluble in water. Chemically, calcitriol is 9, 10-seco(5Z,7E)-5,7,10(19) cholestatriene-1α, 3β, 25-triol and has the following structural formula: Calcitriol The other names frequently used for calcitriol are lα,25-dihydroxycholecalciferol, 1, 25-dihydroxyvitamin D 3 , 1,25-DHCC, 1,25(OH) 2 D 3 and 1,25-diOHC. Calcitriol

Colchicine is an alkaloid chemically described as (S)N- (5,6,7,9-tetrahydro- 1,2,3, 10-tetramethoxy-9-oxobenzo [alpha] heptalen-7-yl) acetamide with a molecular formula of C 22 H 25 NO 6 and a molecular weight of 399.4. The structural formula of colchicine is given below. Colchicine occurs as a pale yellow powder that is soluble in water. Colchicine tablets USP are supplied for oral administration as purple coloured, film coated, capsule shaped tablets, debossed with 'C' on one side and scored on the other side, containing 0.6 mg of the active ingredient colchicine USP. Inactive ingredients: carnauba wax, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, sodium starch glycolate and Opadry-II purple [40L500004] (consisting of Polydextrose NF, HPMC 2910/Hypromellose USP 6mpas, HPMC 2910/Hypromellose USP 3mpas, Triacetin, HPMC 2910/Hypromellose USP 50 mpas, FD& C Blue #2/Indigo carmine Al 3 %-5 %, FD & C Red#40/Allura Red AC Aluminium Lake 15-17 %, Macrogol, titanium dioxide). Structural Formula of Colchicine

Cyproheptadine HCl USP, is an antihistaminic and antiserotonergic agent. Cyproheptadine hydrochloride USP is a white to slightly yellowish crystalline solid, with a molecular weight of 350.89, which is soluble in water, freely soluble in methanol, sparingly soluble in ethanol, soluble in chloroform, and practically insoluble in ether. It is the sesquihydrate of 4-(5 H- dibenzo [a,d] cyclohepten-5-ylidene)-1-methylpiperidine hydrochloride. The molecular formula of the anhydrous salt is C 21 H 21 N•HCl and the structural formula of the anhydrous salt is: C 21 H 21 N• HCl M.W. 350.89 Cyproheptadine hydrochloride USP is available for oral administration in 4 mg tablets. Inactive ingredients include: lactose monohydrate, magnesium stearate, microcrystalline cellulose, and sodium starch glycolate (potato). Structure

Diclofenac Potassium Capsules is a nonsteroidal anti-inflammatory drug, available as liquid-filled capsules of 25 mg base, equivalent to 28.3 mg potassium salt for oral administration. Diclofenac potassium is a white to slight yellowish crystalline powder. It is sparingly soluble in water at 25°C. The chemical name is benzeneacetic acid, 2-[(2,6dichlorophenyl) amino]-, monopotassium salt. The molecular weight is 334.24. Its molecular formula is C 14 H 10 Cl 2 NKO 2 , and it has the following chemical structure. The inactive ingredients in Diclofenac Potassium Capsules include: polyethylene glycol 400, glycerin, sorbitol, povidone, polysorbate 80, hydrochloric acid, purified water. The capsule shells contains gelatin, glycerin, lecithin, medium chain triglyceride, purified water, sorbitol, and opacode black ink (Shellac*Glaze, Ispropyl Alcohol, Ferrosoferric oxide, n-Butyl Alcohol, Propylene Glycol, Ammonium Hydroxide 28 %). Structural Formula

Doxepin is available in 3 mg and 6 mg strength tablets for oral administration. Each tablet contains 3.39 mg or 6.78 mg doxepin hydrochloride, equivalent to 3 mg and 6 mg of doxepin, respectively. Chemically, doxepin hydrochloride is an (E) and (Z) geometric, isomeric mixture of 1 propanamine, 3-dibenz[ b,e ]oxepin-11(6 H )ylidene- N,N -dimethyl-hydrochloride. It has the following structure: Doxepin hydrochloride is a white crystalline powder, with a slight amine-like odor, that is readily soluble in water. It has a molecular weight of 315.84 and molecular formula of C 19 H 21 NO•HCl. Each doxepin tablet includes the following inactive ingredients: colloidal silicon dioxide, crospovidone, microcrystalline cellulose, and magnesium stearate. chemical structure

Doxycycline, USP is a broad-spectrum antibiotic 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. Inactive ingredients include colloidal silicon dioxide, FD&C yellow #6, magnesium stearate, microcrystalline cellulose, sodium starch glycolate, and titanium dioxide. In addition, Doxycycline 100 mg and 50 mg tablets contain hypromellose 3cP, hypromellose 6cP, D&C yellow #10 lake, polyethylene glycol 400, polysorbate 80; Doxycycline 75 mg and 150 mg tablets contain hypromellose 15cP, lactose monohydrate, yellow iron oxide and triethyl citrate. Its molecular weight is 462.46. this is the 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 Capsules USP is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline 150 mg, 100 mg, 75 mg and 50 mg capsules 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: 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 75 mg strength includes FD&C Blue #1, FD&C Red #40 and FD&C Yellow #6. The 150 mg strength includes FD&C Red #40 and FD&C Yellow #6. This is the chemical structure

Doxycycline is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate capsules, USP and doxycycline hyclate tablets, USP (doxycycline hydrochloride hemiethanolate hemihydrate) for oral administration. The structural formula of doxycycline hyclate is: The chemical designation 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 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 1025.87. 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 in the capsule formulation are: FD&C Blue No. 1, gelatin, magnesium stearate, powdered cellulose, sodium lauryl sulfate and titanium dioxide. The imprinting ink contains: black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. Image

Doxycycline hyclate is an antibacterial drug synthetically derived from oxytetracycline. The chemical designation 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 mono - hydrochloride, compound with ethylalcohol (2: 1a), monohydrate. 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. The structural formula is as follows: Each tablet for oral administration contains doxycycline hyclate equivalent to 50 mg and 100 mg of doxycycline (anhydrous). FDA approved dissolution test specifications differ from the USP. Inactive ingredients are: Colloidal silicon dioxide, Magnesium stearate, Microcrystalline cellulose, Sodium starch glycolate. The film coated Opadry orange include Hypromellose, Titanium Dioxide, PEG 6000, Talc, FD&C Yellow, Iron Oxide Red, Iron Oxide Yellow. structural-formula

Doxycycline hyclate is an antibacterial drug synthetically derived from oxytetracycline. The chemical designation 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 mono - hydrochloride, compound with ethylalcohol (2: 1a), monohydrate. 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. The structural formula is as follows: Each tablet for oral administration contains doxycycline hyclate equivalent to 50 mg of doxycycline (anhydrous). FDA approved dissolution test specifications differ from the USP. Inactive ingredients are: Colloidal silicon dioxide, Magnesium stearate, Microcrystalline cellulose, Sodium starch glycolate. The film coated Opadry orange include Hypromellose, Titanium Dioxide, PEG 6000, Talc, FD&C Yellow, Iron Oxide Red, Iron Oxide Yellow. structural-formula

Emtricitabine and tenofovir disoproxil fumarate tablets are fixed-dose combination tablets containing emtricitabine (FTC) and tenofovir disoproxil fumarate (TDF). FTC is a synthetic nucleoside analog of cytidine. TDF is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Both FTC and tenofovir exhibit inhibitory activity against HIV-1 reverse transcriptase. Emtricitabine: The chemical name of FTC is 4-Amino-5-fluoro-1-[(2R,5S)-2-(hydroxy methyl)-1,3-oxathiolan-5- yl]-2(1H)-pyrimidinone. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: FTC is a white to almost white crystalline powder and freely soluble in methonal and water, practically insoluble in dichloromethane. The partition coefficient (log p) for emtricitabine is −0.43 and the pKa is 2.65. Tenofovir Disoproxil Fumarate: TDF is a fumaric acid salt of the bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of tenofovir DF is 9-[( R )-2 [[bis[[(isopropoxycarbonyl)oxy]- methoxy] phosphinyl] methoxy] propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P · C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: Tenofovir disoproxil fumarate is a white to off-white powder and Soluble in methanol, slightly soluble in water. The partition coefficient (log p) for tenofovir disoproxil is 1.25 and the pKa is 3.75. Emtricitabine and Tenofovir disoproxil fumarate tablets are for oral administration, and are available in the following strengths: Film-coated tablet containing 200 mg of FTC and 300 mg of TDF (which is equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets also include the following inactive ingredients: croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and pregelatinized starch (gluten free). The tablets are coated with Opadry white Y-1-7000, which contains hypromellose 2910 (5cP), polyethylene glycol 400 (macrogol) & titanium dioxide. Structure Structure

Ethosuximide is an anticonvulsant succinimide, chemically designated as alpha-ethyl-alpha- methyl-succinimide, with the following structural formula: Each ethosuximide capsule contains 250 mg ethosuximide, USP. Also contains: D & C yellow No. 10, FD & C red # 3, gelatin, glycerin, isopropyl alcohol, lecithin, medium chain triglyceride, polyethylene glycol 400, and sorbitol solution and printing ink white IH-edible oil (Dewaxed Bleached Shellac Resins, Isopropyl Alcohol, Propylene Glycol, Sodium Lauryl Sulphate and Titanium Dioxide). Molecular structure

Fluoxetine hydrochloride is a selective serotonin reuptake inhibitor for oral administration. It is designated (±)-N-methyl-3-phenyl-3-[(α, α , α-trifluoro-p-tolyl)oxy]propylamine hydrochloride and has the empirical formula of C 17 H 18 F 3 NO•HCl. Its molecular weight is 345.79. The structural formula is: Fluoxetine hydrochloride USP, is a white to off-white crystalline solid with a solubility of 14 mg/mL in water. Each scored tablet contains fluoxetine hydrochloride, USP equivalent to 60 mg (194 µmol) of fluoxetine. In addition, each scored tablet also contains the following inactive ingredients: Mannitol, Corn Starch, Povidone, Microcrystalline Cellulose, Magnesium Stearate, Hypromellose 2910, Titanium Dioxide, Glycerin, Polysorbate 80 and Sucrose. Structural Formula for Fluoxetine

HydrALAZINE Hydrochloride Tablets, USP, is an antihypertensive, for oral administration. Its chemical name is 1-hydrazinophthalazine monohydrochloride, and its structural formula is: C 8 H 8 N 4 • HCl HydrALAZINE Hydrochloride, USP is a white to off-white, odorless crystalline powder. It is soluble in water, slightly soluble in alcohol, and very slightly soluble in ether. It melts at about 275°C, with decomposition, and has a molecular weight of 196.64. Each tablet for oral administration contains 10 mg, 25 mg, 50 mg or 100 mg hydrALAZINE Hydrochloride, USP. 25 mg, 50 mg or 100 mg tablets also contain Anhydrous Lactose, Microcrystalline Cellulose, Sodium Starch Glycolate, Stearic Acid and Sunset Yellow Lake and 10 mg tablets contain Magnesium Stearate, Mannitol, Microcrystalline Cellulose, Sodium Starch Glycolate, and Sunset Yellow Lake. structure

Hydrocodone Bitartrate and Acetaminophen Tablets, USP is supplied in tablet form for oral administration. Hydrocodone bitartrate is an opioid analgesic and antitussive and occurs as fine, white crystals or as a crystalline powder. It is affected by light. The chemical name is 4,5 α -Epoxy-3-methoxy-17-methylmorphinan-6-one tartrate (1:1) hydrate (2:5). It has the following structural formula: Acetaminophen, 4´-Hydroxyacetanilide, a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula: Each Hydrocodone Bitartrate and Acetaminophen Tablet, 5 mg/325 mg contains: Hydrocodone Bitartrate …..... 5 mg Acetaminophen ................. 325 mg Each Hydrocodone Bitartrate and Acetaminophen Tablet, 7.5 mg/325 mg contains: Hydrocodone Bitartrate ......... 7.5 mg Acetaminophen ..................... 325 mg Each Hydrocodone Bitartrate and Acetaminophen Tablets, 10 mg/325 mg contains: Hydrocodone Bitartrate .......... 10 mg Acetaminophen ..................... 325 mg In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, crospovidone, magnesium stearate, microcrystalline cellulose, povidone, pregelatinized starch, and stearic acid. Meets USP Dissolution Test 1. hydrocodone-bitartrate-structure acetaminophen-structure

Hydrocortisone tablets, USP contain hydrocortisone which is a glucocorticoid. Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, which are readily absorbed from the gastrointestinal tract. Hydrocortisone USP is white to practically white, odorless, crystalline powder with a melting point of about 215º C. It is very slightly soluble in water and in ether; sparingly soluble in acetone and in alcohol; slightly soluble in chloroform. The chemical name for hydrocortisone is pregn-4-ene-3,20-dione,11,17,21-trihydroxy-, (11β)-. Its molecular weight is 362.46 and the structural formula is as outlined below. Hydrocortisone tablets, USP are available for oral administration in three strengths: each tablet contains either 5 mg, 10 mg, or 20 mg of hydrocortisone. Inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate and microcrystalline cellulose. Structural Formula

Imipramine hydrochloride, USP is supplied in tablet form for oral administration. Imipramine hydrochloride, USP the original tricyclic antidepressant, is a member of the dibenzazepine group of compounds. It is designated 5-[3-(dimethylamino) propyl]-10,11-dihydro- 5H -dibenz [b,f]azepine monohydrochloride. Its structural formula is: C 19 H 24 N 2 ●HCl MW: 316.87 Imipramine hydrochloride USP is a white to off-white, odorless, or practically odorless, crystalline powder. It is freely soluble in water and in alcohol, soluble in acetone, and insoluble in ether and in benzene. Imipramine hydrochloride tablets,USP are available for oral administration providing 10 mg, 25 mg or 50 mg of imipramine hydrochloride. Inactive ingredients: FD&C Yellow #6, hydroxypropyl cellulose, hypromellose, lactose anhydrous, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium starch glycolate, stearic acid, titanium dioxide and triacetin. In addition, the 10 mg tablet contains D&C Yellow #10; the 25 mg tablet contains FD&C Red #40 and FD&C Blue #2; the 50 mg tablet contains D&C Yellow #10 and FD&C Blue #1. structural formula of imipramine

Ketoconazole, USP is a synthetic broad-spectrum antifungal agent. Each tablet, for oral administration, contains 200 mg ketoconazole, USP base. In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, corn starch, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. Ketoconazole is (±)cis-1-Acetyl-4-[p-[[2-(2,4-dichlorophenyl)-2-(imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-piperazine and has the following structural formula: C 26 H 28 Cl 2 N 4 O 4 M.W. 531.44 Ketoconazole, USP is a white or almost white powder that is soluble in acids. Structure

Lamivudine (also known as 3TC), a synthetic nucleoside analogue with activity against HIV-1 and HBV. The chemical name of lamivudine is (2R,cis)-4-amino-1-(2-hydroxymethyl-1,3-oxathiolan-5-yl)-(1H)-pyrimidin-2-one. Lamivudine is the (-) enantiomer of a dideoxy analogue of cytidine. Lamivudine has also been referred to as (-)2′,3′-dideoxy, 3′-thiacytidine. It has a molecular formula of C 8 H 11 N 3 O 3 S and a molecular weight of 229.3 g per mol. It has the following structural formula: Lamivudine is a white to off-white crystalline solid with a solubility of approximately 70 mg per mL in water at 20°C. Lamivudine Tablets, USP are for oral administration. Each scored 150-mg film-coated tablet contains 150 mg of lamivudine and the inactive ingredients microcrystalline cellulose, sodium starch glycolate, colloidal silicon dioxide, povidone, magnesium stearate, and opadry white which is composed of Hydroxy Propyl methylcellulose 2910/ Hypromellose 5cP, Titanium dioxide, Polyethylene glycol 400 (Macrogol). Each 300-mg film-coated tablet contains 300 mg of lamivudine and the inactive ingredients microcrystalline cellulose, sodium starch glycolate, colloidal silicon dioxide, povidone, magnesium stearate, and opadry white which is composed of Hydroxy Propyl methylcellulose 2910/ Hypromellose 5cP, Titanium dioxide, Polyethylene glycol 400 (Macrogol). Chemical Structure

Lidocaine Ointment 5% contains a local anesthetic agent and is administered topically. See INDICATIONS AND USAGE for specific uses. Lidocaine Ointment 5% contains lidocaine, which is chemically designated as acetamide, 2- (diethylamino)- N -(2,6-dimethylphenyl)-, and has the following structural formula: Composition of Lidocaine Ointment USP, 5%: acetamide, 2-(diethylamino)- N -(2,6-dimethylphenyl)-, (lidocaine) 5% in a water miscible ointment vehicle containing polyethylene glycols. Image

Megestrol Acetate Oral Suspension, USP contains megestrol acetate, a synthetic derivative of the steroid hormone, progesterone. Megestrol acetate is a white, crystalline solid chemically designated as 17-Hydroxy-6-methylpregna-4,6-diene-3,20-dione acetate. Solubility at 37°C in water is 2 mcg per mL, solubility in plasma is 24 mcg per mL. Its molecular weight is 384.52. The chemical formula is C 24 H 32 O 4 and the structural formula is represented as follows: Chemical formula Megestrol acetate oral suspension is supplied as an oral suspension containing 40 mg of micronized megestrol acetate per mL. Megestrol acetate oral suspension contains the following inactive ingredients: alcohol (max 0.06% v/v from flavor), artificial lime flavor, citric acid monohydrate, docusate sodium, glycerin, natural and artificial lemon flavor, purified water, sodium benzoate, sodium citrate dihydrate, sucrose and xanthan gum. Megestrol acetate oral suspension, 40 mg/mL complies with USP Dissolution Test 2. Chemical formula

Megestrol acetate is a synthetic, antineoplastic and progestational drug. Megestrol acetate is a white, crystalline solid chemically designated as 17(alpha)-(acetyloxy)-6-methylpregna-4,6-diene-3,20-dione. Solubility at 37°C in water is 2 mcg per mL, solubility in plasma is 24 mcg per mL. Its molecular weight is 384.51. The molecular formula is C 24 H 32 O 4 and the structural formula is represented as follows: Megestrol acetate is supplied as tablets for oral administration containing 20 mg and 40 mg megestrol acetate. Megestrol acetate tablets contain the following inactive ingredients: acacia spray dried, colloidal silicon dioxide, corn starch, di-calcium phosphate dihydrate powder, lactose hydrous impalpable, magnesium stearate and pregelatinized starch. Chemical structure

Methimazole (1-methylimidazole-2-thiol) is a white, crystalline substance that is freely soluble in water. It differs chemically from the drugs of the thiouracil series primarily because it has a 5- instead of a 6-membered ring. Methimazole tablet, USP contains 5 or 10 mg (43.8 or 87.6 μmol) methimazole, an orally administered antithyroid drug. Each tablet also contains lactose monohydrate, magnesium stearate, corn starch, and talc. The molecular weight is 114.17, and the molecular formula is C 4 H 6 N 2 S. The structural formula is as follows: structural formula structural formula

I. DESCRIPTION Methoxsalen Soft Gelatin Capsules USP contains 10mg methoxsalen. Methoxsalen occurs as white to pale yellow crystals and can be obtained naturally from seeds of Ammi majus and roots of Heracleum Candicans or through synthesis. Methoxsalen is practically insoluble in water, freely soluble in chloroform, soluble in boiling alcohol, in acetone, in acetic acid, in propylene glycol, and in benzene, sparingly soluble in boiling water and in ether. The chemical name of methoxsalen is 9-methoxy-7H-furo [3,2-g] [1] benzopyran-7-one; its empirical formula is C 12 H 8 O 4 and the molecular weight is 216.19. The structural formula is: Methoxsalen Capsules are available as soft gelatin capsules containing the following inactive ingredients: Citric acid anhydrous, D & C yellow 10, FD & C blue 1, Gelatin, Glycine, Glycerin, Isopropyl alcohol, Medium chain triglyceride, Polyethylene glycol 400, Polysorbate 80, Purified water, Titanium dioxide and Opacode black. The opacode black contains Propylene glycol, Shellac glaze (Modified) IN SD-45, N-Butyl alcohol, Black iron oxide, Isopropyl alcohol and Ammonium hydroxide. Methoxsalen