aurobindo pharma limited - Medication Listings

Prasugrel tablets USP contain prasugrel, a thienopyridine class inhibitor of platelet activation and aggregation mediated by the P2Y 12 ADP receptor. Prasugrel is formulated as the hydrochloride salt, a racemate, which is chemically designated as 5-[(1RS)-2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate hydrochloride. Prasugrel hydrochloride USP has the molecular formula C 20 H 20 FNO 3 S•HCl representing a molecular weight of 409.90. The chemical structure of prasugrel hydrochloride USP is: Prasugrel hydrochloride USP is a white to practically white powder. It is freely soluble in methanol, practically insoluble in water. Prasugrel tablets USP are available for oral administration as 5 mg or 10 mg elongated hexagonal, film-coated, non-scored tablets, debossed on each side. Each yellow 5 mg tablet is manufactured with 5.49 mg prasugrel hydrochloride USP, equivalent to 5 mg prasugrel and each beige 10 mg tablet with 10.98 mg prasugrel hydrochloride USP, equivalent to 10 mg of prasugrel. Other ingredients include glyceryl dibehenate, hypromellose, lactose monohydrate, low substituted hydroxypropyl cellulose, mannitol, microcrystalline cellulose, sucrose stearate, titanium dioxide, triacetin, and yellow iron oxide. In addition, the 10 mg tablets contain red iron oxide. Chemical Structure

Pravastatin sodium, USP is a statin, an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase. Pravastatin sodium, USP is designated chemically as 1-Naphthalene-heptanoic acid, 1,2,6,7,8,8a-hexahydro-β,δ,6-trihydroxy-2-methyl-8-(2-methyl-1-oxobutoxy)-, monosodium salt, [1S-[1α(βS*,δS*),2α,6α,8β(R*),8aα]]-. Structural formula: Pravastatin sodium, USP is an odorless, white to off-white, fine or crystalline powder. It is a relatively polar hydrophilic compound with a partition coefficient (octanol/water) of 0.59 at a pH of 7.0. It is soluble in methanol and water (>300 mg/mL), slightly soluble in isopropanol, and practically insoluble in acetone, acetonitrile, chloroform, and ether. Pravastatin sodium tablets, USP for oral use contain 10 mg, 20 mg and 40 mg pravastatin sodium USP, which is equivalent to 9.50 mg, 19.01 mg and 38.03 mg of pravastatin, respectively. Inactive ingredients include: calcium phosphate dibasic anhydrous, croscarmellose sodium, crospovidone, lactose anhydrous, microcrystalline cellulose, povidone and sodium stearyl fumarate. Additionally, the 10 mg tablet contains ferric oxide red; the 20 mg tablet contains ferric oxide yellow; and the 40 mg tablet contains FD&C Blue No. 1 Aluminum Lake and D&C Yellow No.10. Chemical Structure

Pravastatin sodium, USP is a statin, an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase. Pravastatin sodium, USP is designated chemically as 1-Naphthalene-heptanoic acid, 1,2,6,7,8,8a-hexahydro-β,δ,6-trihydroxy-2-methyl-8-(2-methyl-1-oxobutoxy)-, monosodium salt, [1S-[1α(βS*,δS*),2α,6α,8β(R*),8aα]]-. Structural formula: Pravastatin sodium, USP is an odorless, white to off-white, fine or crystalline powder. It is a relatively polar hydrophilic compound with a partition coefficient (octanol/water) of 0.59 at a pH of 7.0. It is soluble in methanol and water (>300 mg/mL), slightly soluble in isopropanol, and practically insoluble in acetone, acetonitrile, chloroform, and ether. Pravastatin sodium tablets, USP for oral use contain 80 mg pravastatin sodium USP, which is equivalent to 76.06 mg of pravastatin, respectively. Inactive ingredients include: anhydrous dibasic calcium phosphate, crospovidone, lactose anhydrous, magnesium stearate, microcrystalline cellulose, and povidone. Chemical Structure

Pravastatin sodium, USP is a statin, an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase. Pravastatin sodium, USP is designated chemically as 1-Naphthalene-heptanoic acid, 1,2,6,7,8,8a-hexahydro-β,δ,6-trihydroxy-2-methyl-8-(2-methyl-1-oxobutoxy)-, monosodium salt, [1S-[1α(βS*,δS*),2α,6α,8β(R*),8aα]]-. Structural formula: Pravastatin sodium, USP is a white to yellowish white hygroscopic powder. It is a relatively polar hydrophilic compound with a partition coefficient (octanol/water) of 0.59 at a pH of 7.0. It is soluble in methanol and water (>300 mg/mL), slightly soluble in isopropanol, and practically insoluble in acetone, acetonitrile, chloroform, and ether. Pravastatin sodium tablets, USP for oral use contain 10 mg, 20 mg, 40 mg, and 80 mg pravastatin sodium, which is equivalent to 9.485 mg, 18.97 mg, 37.94 mg and 75.88 mg of pravastatin, respectively. Inactive ingredients include: croscarmellose sodium, heavy magnesium oxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. In addition, 10 mg, 40 mg and 80 mg tablets contain yellow ferric oxide. Chemical Struture

Prazosin hydrochloride, a quinazoline derivative, is the first of a new chemical class of antihypertensives. It is the hydrochloride salt of 1-(4-amino-6, 7-dimethoxy-2-quinazolinyl)-4-(2-furoyl) piperazine and its structural formula is: Molecular formula C 19 H 21 N 5 O 4 .HCl It is a white or almost white crystalline powder, very slightly soluble in water, slightly soluble in alcohol and methanol, practically insoluble in acetone and has a molecular weight of 419.87. Each 1 mg capsule of prazosin hydrochloride USP, for oral use contains drug equivalent to 1 mg free base. Prazosin hydrochloride capsules USP contains the following inactive ingredients: corn starch, magnesium stearate, sodium lauryl sulfate, sucrose. The hard gelatin capsules contain gelatin and titanium dioxide. In addition, the 1 mg hard gelatin capsules contain D&C Yellow 10 and FD&C Yellow 6; the 2 mg hard gelatin capsules contain D&C Yellow 10, FD&C Blue 1, FD&C Red 3 and FD&C Yellow 6; the 5 mg hard gelatin capsules contains D&C Yellow 10, FD&C Blue 1, FD&C Red 3 and FD&C Yellow 6. The capsule shells are imprinted with black ink which contains black iron oxide, potassium hydroxide and shellac. FDA approved dissolution test specifications differ from USP. Chemical Structure

Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, which are readily absorbed from the gastrointestinal tract. Prednisolone USP is a white to practically white, odorless, crystalline powder, soluble in methanol and in dioxane, sparingly soluble in acetone and in alcohol, slightly soluble in chloroform, very slightly soluble in water. It is designated chemically as pregna-1,4-diene-3,20-dione,11,17,21-trihydroxy-, (11ß)-. The structural formula is represented below: C 21 H 28 O 5 M.W. 360.45 Prednisolone Tablets, USP 5 mg for oral administration contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, crospovidone, D&C Yellow No. 10 Aluminum Lake HT, docusate sodium, FD&C Yellow No. 6 Aluminum Lake, magnesium stearate and sodium benzoate. FDA approved dissolution test specifications differ from USP. structure

Pregabalin is described chemically as ( S )-3-(aminomethyl)-5-methylhexanoic acid. The molecular formula is C 8 H 17 NO 2 and the molecular weight is 159.23. The chemical structure of pregabalin is: Pregabalin USP is a white to off-white powder with a pK a1 of 4.2 and a pK a2 of 10.6. 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 – 1.35. Pregabalin capsules are administered orally and are supplied as imprinted hard-shell capsules containing 25 mg, 50 mg, 75 mg, 100 mg, 150 mg, 200 mg, 225 mg, and 300 mg of pregabalin USP, along with corn starch and talc as inactive ingredients. The capsule shells contain gelatin, titanium dioxide, and sodium lauryl sulphate. In addition, 75 mg, 100 mg, 200 mg, 225 mg and 300 mg capsules contain red iron oxide. The imprinting ink contains black iron oxide, potassium hydroxide, propylene glycol, and shellac. Chemical Structure

Prochlorperazine is a phenothiazine derivative, present in prochlorperazine tablets as the maleate. Prochlorperazine maleate is designated chemically as 2-chloro-10-[3-(4-methyl-1-piperazinyl)propyl] phenothiazine maleate [molecular weight 606.10] and has the following structure: Prochlorperazine maleate is classified as an anti-emetic and antipsychotic agent. Prochlorperazine maleate is white to pale yellow crystalline powder. It is slightly soluble in warm chloroform, practically insoluble in water and in alcohol. Each tablet, for oral administration contains prochlorperazine maleate, USP equivalent to 5 mg or 10 mg of prochlorperazine. In addition, each tablet contains the following inactive ingredients: D&C Yellow No. 10 Al. Lake, FD&C Blue No. 2 Al. Lake, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, pregelatinized starch (maize), stearic acid and titanium dioxide. Chemical Structure

Progesterone capsules contain micronized progesterone for oral administration. Progesterone has a molecular weight of 314.47 and a molecular formula of C 21 H 30 O 2 . Progesterone (pregn-4-ene-3, 20-dione) is a white or creamy white, crystalline powder or colorless crystals practically insoluble in water, soluble in alcohol, acetone and dioxane and sparingly soluble in vegetable oils, melting between 126º and 131ºC. The structural formula is: Progesterone is synthesized from a starting material from a plant source and is chemically identical to progesterone of human ovarian origin. Progesterone capsules are available in multiple strengths to afford dosage flexibility for optimum management. Progesterone capsules contain 100 mg or 200 mg micronized progesterone USP. The inactive ingredients for progesterone capsules include: gelatin, glycerin, hypromellose, iron oxide black, lecithin, peanut oil, propylene glycol, titanium dioxide. Chemical Structure

Propafenone hydrochloride is an antiarrhythmic drug supplied in film-coated tablets of 150 mg, 225 mg and 300 mg for oral administration. Propafenone has some structural similarities to beta-blocking agents. Chemically, propafenone hydrochloride is 2’-[2-hydroxy-3-(propylamino)-propoxy]-3-phenylpropiophenone hydrochloride, with a molecular weight of 377.92. The molecular formula is C 21 H 27 NO 3 •HCl. The structural formula of propafenone hydrochloride is given below: Propafenone hydrochloride occurs as white crystalline powder. It is soluble in methanol and in hot water; slightly soluble in alcohol and in chloroform; very slightly soluble in acetone; insoluble in diethyl ether and in toluene. The following inactive ingredients are contained in the tablet: corn starch, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, povidone, sodium starch glycolate, talc and titanium dioxide. Chemical Structure

Propafenone hydrochloride is an antiarrhythmic drug supplied in extended-release capsules of 225 mg, 325 mg, and 425 mg for oral administration. Chemically, propafenone hydrochloride is 2’-[2-hydroxy-3-(propylamino)-propoxy]-3- phenylpropiophenone hydrochloride, with a molecular weight of 377.92. The molecular formula is C 21 H 27 NO 3 •HCl. Propafenone hydrochloride has some structural similarities to beta-blocking agents. The structural formula of propafenone hydrochloride is given below: Propafenone hydrochloride, USP occurs as white or almost white powder or colorless crystals. It is soluble in methanol and hot water, slightly soluble in 96% ethanol and cold water. Propafenone hydrochloride extended-release capsules USP are filled with 2 mm white to off white round biconvex microtablets containing propafenone and the following inactive ingredients: gelatin, hypromellose, magnesium stearate, polyethylene glycol, red iron oxide, shellac, sodium lauryl sulphate and titanium dioxide. Chemical Structure

Pyrimethamine is an antiparasitic compound available in tablet form for oral administration. Each scored tablet contains 25 mg pyrimethamine USP and the inactive ingredients colloidal silicon dioxide, lactose monohydrate, magnesium stearate and pregelatinized starch (corn). Pyrimethamine USP, known chemically as 5-(4- chlorophenyl)-6-ethyl-2, 4-pyrimidinediamine, has the following structural formula: str

Quetiapine is an atypical antipsychotic belonging to a chemical class, the dibenzothiazepine derivatives. The chemical designation is 2-[2-(4-dibenzo [ b,f ] [1,4] thiazepin-11-yl-1­-piperazinyl)ethoxy]-ethanol fumarate (2:1) (salt). It is present in tablets as the fumarate salt. All doses and tablet strengths are expressed as milligrams of base, not as fumarate salt. Its molecular formula is C 42 H 50 N 6 O 4 S 2 •C 4 H 4 O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: Quetiapine fumarate USP is a white to off-white powder which is moderately soluble in water. Quetiapine extended-release tablets, USP are supplied for oral administration as 50 mg (peach), 150 mg (white), 200 mg (yellow), 300 mg (pale yellow), and 400 mg (white). All tablets are capsule shaped and film-coated. Inactive ingredients for quetiapine extended-release tablets, USP are hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, propylene glycol, sodium citrate, titanium dioxide. In addition, the 50 mg contains iron oxide red and iron oxide yellow, the 200 mg, and 300 mg contains iron oxide yellow. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 150 mg tablet contains 172.68 mg of quetiapine fumarate USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.37 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.49 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Meets USP Dissolution Test 14. Chemical Structure

Quetiapine is an atypical antipsychotic belonging to a chemical class, the dibenzothiazepine derivatives. The chemical designation is 2-[2-(4-dibenzo [ b,f ] [1,4]thiazepin-11-yl-1-­piperazinyl)ethoxy]-ethanol fumarate (2:1) (salt). It is present in tablets as the fumarate salt. All doses and tablet strengths are expressed as milligrams of base, not as fumarate salt. Its molecular formula is C 42 H 50 N 6 O 4 S 2 •C 4 H 4 O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: Quetiapine fumarate USP is a white to off-white powder which is moderately soluble in water. Quetiapine is supplied for oral administration as 25 mg (round, peach), 50 mg (round, white), 100 mg (round, yellow), 150 mg (round, light yellow), 200 mg (round, white), 300 mg (capsule shaped, white), and 400 mg (capsule shaped, yellow) tablets. Inactive ingredients are colloidal silicon dioxide, dibasic calcium phosphate dihydrate, hypromellose 6cp, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol 400, povidone, sodium starch glycolate, talc, and titanium dioxide. In addition, the 25 mg contains iron oxide red and iron oxide yellow; the 100 mg, 150 mg, and 400 mg contains iron oxide yellow. The 50 mg, 100 mg, 150 mg, 200 mg, 300 mg, and 400 mg tablets are printed with Opacode S-1-17823 black contains iron oxide black and shellac. Each 25 mg tablet contains 28.780 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.561 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.122 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 150 mg tablet contains 172.683 mg of quetiapine fumarate USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.244 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.366 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.488 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Chemical Structure

Quinapril hydrochloride is the hydrochloride salt of quinapril, the ethyl ester of a non-sulfhydryl, angiotensin-converting enzyme (ACE) inhibitor, quinaprilat. Quinapril hydrochloride is chemically described as [3S-[2[R*(R*)], 3R*]]-2-[2-[[1­-(ethoxycarbonyl)-3-phenylpropyl]amino]-1-oxopropyl]-1,2,3,4-tetrahydro-3­­­­­-isoquinolinecarboxylic acid, monohydrochloride. Its molecular formula is C 25 H 30 N 2 O 5 •HCl and its structural formula is: Quinapril hydrochloride USP is a white to off-white powder, with a pink cast at times that is freely soluble in aqueous solvents. Quinapril tablets, USP contain 5 mg (equivalent to 5.416 mg quinapril hydrochloride), 10 mg (equivalent to 10.832 mg quinapril hydrochloride), 20 mg (equivalent to 21.664 mg quinapril hydrochloride), or 40 mg (equivalent to 43.328 mg quinapril hydrochloride) of quinapril for oral administration. Each tablet also contains colloidal silicon dioxide, crospovidone, hydroxypropyl cellulose, hypromellose, iron oxide red, lactose monohydrate, magnesium carbonate, magnesium stearate, polyethylene glycol, povidone, and titanium dioxide. Chemical Structure

Quinapril and hydrochlorothiazide tablets, USP are fixed-combination tablet that combines an angiotensin-converting enzyme (ACE) inhibitor, quinapril hydrochloride, and a thiazide diuretic, hydrochlorothiazide. Quinapril hydrochloride is chemically described as [3S-[2[R*(R*)], 3R*]]-2-[2-[[1-(ethoxycarbonyl)-3-phenylpropyl]amino]-1-oxopropyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid, monohydrochloride. Its molecular formula is C 25 H 30 N 2 O 5 . HCl and its structural formula is: Quinapril hydrochloride USP is a white to off-white amorphous powder that is freely soluble in aqueous solvents. Hydrochlorothiazide is chemically described as: 6-Chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide. Its molecular formula is C 7 H 8 ClN 3 O 4 S 2 and its structural formula is: Hydrochlorothiazide USP is a white to off-white, crystalline powder which is slightly soluble in water but freely soluble in sodium hydroxide solution. Quinapril and hydrochlorothiazide tablets, USP are available for oral use as fixed combination tablets in three strengths of quinapril with hydrochlorothiazide: 10 mg (equivalent to 10.832 mg quinapril hydrochloride USP) with 12.5 mg (quinapril and hydrochlorothiazide 10/12.5), 20 mg (equivalent to 21.664 mg quinapril hydrochloride USP) with 12.5 mg (quinapril and hydrochlorothiazide 20/12.5), and 20 mg (equivalent to 21.664 mg quinapril hydrochloride USP) with 25 mg (quinapril and hydrochlorothiazide 20/25). The strength of the quinapril hydrochloride component is in terms of quinapril. Inactive ingredients: lactose monohydrate, magnesium carbonate, crospovidone, povidone, magnesium stearate, hypromellose, hydroxypropyl cellulose, polyethylene glycol 400, titanium dioxide, iron oxide red and iron oxide yellow. Quinapril Hydrochloride Chemical Structure Hydrochlorothiazide Chemical Structure

The active ingredient in rabeprazole sodium delayed-release tablets is rabeprazole sodium, which is a proton pump inhibitor. It is a substituted benzimidazole known chemically as 2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]-methyl]sulfinyl]-1 H– benzimidazole sodium salt. It has a molecular formula of C 18 H 20 N 3 NaO 3 S and a molecular weight of 381.42. Rabeprazole sodium is a white to off-white, hygroscopic powder. It is freely soluble in methanol and methylene chloride. The stability of rabeprazole sodium is a function of pH; it is rapidly degraded in acid media, and is more stable under alkaline conditions. The structural formula is: Figure 1 Rabeprazole sodium is available for oral administration as delayed-release, enteric-coated tablets containing 20 mg of rabeprazole sodium USP. Inactive ingredients of the 20 mg tablet are crospovidone, diacetylated monoglycerides, ethyl cellulose, ferric oxide yellow, hydroxypropyl cellulose, hypromellose phthalate, low substituted hydroxypropyl cellulose, magnesium stearate, mannitol, magnesium oxide, magnesium hydroxide, sodium carbonate, talc, and titanium dioxide. The tablets are printed with edible ink containing black iron oxide and shellac. Chemical Structure

Raloxifene hydrochloride is an estrogen agonist/antagonist, commonly referred to as a selective estrogen receptor modulator (SERM) that belongs to the benzothiophene class of compounds. The chemical structure is: The chemical designation is methanone, [6-hydroxy-2-(4-hydroxyphenyl)benzo[ b ]thien-3-yl]-[4-[2-(1-piperidinyl)ethoxy]phenyl]-, hydrochloride. Raloxifene hydrochloride has the molecular formula C 28 H 27 NO 4 S•HCl, which corresponds to a molecular weight of 510.05. Raloxifene hydrochloride USP is almost white to pale yellow powder that is very slightly soluble in water. Raloxifene hydrochloride USP is supplied in a tablet dosage form for oral administration. Each raloxifene hydrochloride tablet, USP contains 60 mg of raloxifene hydrochloride USP, which is the molar equivalent of 55.71 mg of free base. Inactive ingredients include citric acid monohydrate, crospovidone, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, povidone, and titanium dioxide. USP dissolution test pending. Chemical Structure

Ramelteon is an orally active hypnotic chemically designated as ( S )- N -[2-(1,6,7,8- tetrahydro-2 H -indeno-[5,4- b ]furan-8-yl)ethyl]propionamide and containing one chiral center. The compound is produced as the ( S )-enantiomer, with the molecular formula of C 16 H 21 NO 2 , molecular weight of 259.34, and the following chemical structure: Ramelteon is white to off-white powder soluble in methanol and practically insoluble in water. Each ramelteon tablet includes the following inactive ingredients: copolyvidone, hyperomellose, iron oxide yellow, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, pregelatinized starch (maize), and titanium dioxide. str

Ramipril is a 2-aza-bicyclo [3.3.0]-octane-3-carboxylic acid derivative. It is a white to almost white crystalline powder soluble in polar organic solvents and buffered aqueous solutions. Ramipril melts between 105° to 112°C. The CAS Registry Number is 87333-19-5. Ramipril’s chemical name is (2 S ,3a S ,6a S )-1[( S )- N -[( S )-1-Carboxy-3-phenylpropyl] alanyl] octahydrocyclopenta [ b ]pyrrole-2-carboxylic acid, 1-ethyl ester. The inactive ingredients present are pregelatinized starch and silica hydrophobic, colloidal anhydrous. The empty hard gelatin capsule shells contain gelatin, sodium lauryl sulfate, and titanium dioxide. In addition, the 1.25 mg capsule shell contains iron oxide yellow, 2.5 mg capsule shell contains D&C yellow 10 and FD&C red 40, the 5 mg capsule shell contains FD&C blue 1 and FD&C red 40, and the 10 mg capsule shell contains FD&C blue 1. The capsules are printed with edible ink containing black iron oxide and shellac. The structural formula for ramipril is: Its molecular formula is C 23 H 32 N 2 O 5 and its molecular weight is 416.5. Ramiprilat, the diacid metabolite of ramipril, is a non-sulfhydryl ACE inhibitor. Ramipril is converted to ramiprilat by hepatic cleavage of the ester group. Chemical Structure

Ranolazine is available as a film-coated, non-scored, extended-release tablet for oral administration. Ranolazine is a racemic mixture, chemically described as 1-piperazineacetamide, N -(2,6-dimethylphenyl)-4-[2-hydroxy-3-(2-methoxyphenoxy)propyl]-, (±)-. It has an molecular formula of C 24 H 33 N 3 O 4 , a molecular weight of 427.54 g/mole, and the following structural formula: Ranolazine is a white to off-white powder. Ranolazine is soluble in methanol; practically insoluble in water. Ranolazine extended-release tablets contain 500 mg or 1000 mg of ranolazine and the following inactive ingredients: hypromellose, iron oxide yellow, lactose monohydrate, magnesium stearate, methacrylic acid copolymer Type C (which contains copolymer based on ethyl acrylate and methacrylic acid, polysorbate 80 and sodium lauryl sulfate), microcrystalline cellulose, sodium hydroxide, titanium dioxide and triacetin. In addition, 500 mg tablets contain FD&C yellow # 6/sunset yellow FCF aluminum lake and iron oxide red. Chemical Structure

Repaglinide is an oral blood glucose-lowering drug of the glinide class. Repaglinide, S(+)2-ethoxy-4(2((3-methyl-1-(2-(1-piperidinyl) phenyl)-butyl) amino)-2-oxoethyl) benzoic acid, is chemically unrelated to the oral sulfonylurea insulin secretagogues. Structural Formula of Repaglinide Repaglinide USP is a white to off-white solid with molecular formula C 27 H 36 N 2 O 4 and a molecular weight of 452.6. Repaglinide tablets, USP contain 0.5 mg, 1 mg, or 2 mg of repaglinide USP. In addition, each tablet contains the following inactive ingredients: anhydrous dibasic calcium phosphate, corn starch, glycerol, magnesium stearate, meglumine, microcrystalline cellulose, polacrillin potassium, poloxamer, and povidone. In addition, the 1 mg tablet contains ferric oxide (Sicovit Yellow 10) and 2 mg tablet contains ferric oxide (Sicovit Red 30). Chemical Structure

Rhuzdah 28-Day (norethindrone and ethinyl estradiol tablets, USP) provide a continuous regimen for oral contraception derived from 21 light peach tablets composed of norethindrone and ethinyl estradiol to be followed by 7 green tablets of inert ingredients. The structural formulas are: The light peach active tablets each contain 0.4 mg norethindrone USP and 0.035 mg ethinyl estradiol USP, and contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, dibasic calcium phosphate dihydrate, FD & C yellow # 6 aluminum lake, lactose monohydrate, magnesium stearate, povidone, sodium starch glycolate (potato) and talc. The green tablets in the 28 Day regimen contain only inert ingredients as follows: anhydrous lactose, croscarmellose sodium, FD &C Blue No.2 aluminum lake, ferric oxide yellow, magnesium stearate, microcrystalline cellulose and povidone. Meets USP Dissolution Test 3. Chemical Structure

Ribavirin, is a nucleoside analogue with antiviral activity. The chemical name of ribavirin is 1-β-D-­ribofuranosyl-1 H -1,2,4-triazole-3-carboxamide and has the following structural formula: The molecular formula of ribavirin is C 8 H 12 N 4 O 5 and the molecular weight is 244.2. Ribavirin USP is a white crystalline powder. It is freely soluble in water and slightly soluble in anhydrous alcohol. Ribavirin USP is available as a light pink colored, capsule shaped, film-coated tablet for oral administration. Each tablet contains 200 mg of ribavirin USP and the following inactive ingredients: microcrystalline cellulose, pregelatinised starch (maize), sodium starch glycolate, povidone (Kollidon 30), colloidal silicon dioxide, magnesium stearate, ethyl cellulose, triacetin, hypromellose, iron oxide red, titanium dioxide, and yellow iron oxide. Chemical Structure

Ribavirin, is a synthetic nucleoside analogue (purine analogue). The chemical name of ribavirin is 1-β-D-ribofuranosyl-1H-1,2,4-triazole-3-carboxamide and has the following structural formula (see Figure 1). Figure 1: Structural Formula Ribavirin USP is a white, crystalline powder. It is freely soluble in water and slightly soluble in anhydrous alcohol. The molecular formula is C 8 H 12 N 4 O 5 and the molecular weight is 244.21. Ribavirin capsules USP consist of a white to off-white granular powder in a white, opaque, gelatin capsule. Each capsule contains 200 mg ribavirin and the inactive ingredients microcrystalline cellulose, lactose monohydrate, povidone-K 30, and magnesium stearate. The capsule shell consists of titanium dioxide, sodium lauryl sulfate, and gelatin. The capsule is printed with edible ink containing black iron oxide. Meets USP dissolution test 2. Chemical Structure

Risedronate sodium tablets, USP are a pyridinyl bisphosphonate that inhibits osteoclast-mediated bone resorption and modulates bone metabolism. Each risedronate sodium tablet, USP for oral administration contains the equivalent of 150 mg of anhydrous risedronate sodium in the form of the hemi-pentahydrate with small amounts of monohydrate. The molecular formula for risedronate sodium hemi-pentahydrate is C 7 H 10 NO 7 P 2 Na•2.5H 2 O. The chemical name of risedronate sodium is [1-hydroxy-2-(3-pyridinyl)ethylidene]bis[phosphonic acid] monosodium salt. The chemical structure of risedronate sodium hemi-pentahydrate is the following: Molecular Weight: Anhydrous: 305.10 Hemi-pentahydrate: 350.13 Risedronate sodium is a white to off-white, crystalline powder. It is soluble in water and in aqueous solutions, and essentially insoluble in common organic solvents. Inactive Ingredients Colloidal silicon dioxide, crospovidone, FD&C Blue#2/Indigo carmine aluminium Lake, hydroxypropyl cellulose, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol and titanium dioxide. Chemical Structure

Risedronate sodium tablets, USP are a pyridinyl bisphosphonate that inhibits osteoclast-mediated bone resorption and modulates bone metabolism. Each risedronate sodium tablet, USP for oral administration contains the equivalent of 5 mg, 30 mg, or 35 mg of anhydrous risedronate sodium in the form of the hemi-pentahydrate with small amounts of monohydrate. The molecular formula for risedronate sodium hemi-pentahydrate is C 7 H 10 NO 7 P 2 Na •2.5 H 2 O. The chemical name of risedronate sodium is [1-hydroxy-2-(3-pyridinyl)ethylidene]bis[phosphonic acid] monosodium salt. The chemical structure of risedronate sodium hemi-pentahydrate is the following: Molecular Weight: Anhydrous: 305.10 Hemi-pentahydrate: 350.13 Risedronate sodium is a white to off-white, crystalline powder. It is soluble in water and in aqueous solutions, and essentially insoluble in common organic solvents. Inactive Ingredients All dose strengths contain: crospovidone, hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, and titanium dioxide. Dose strength-specific ingredients include: 5 mg—colloidal silicon dioxide and iron oxide yellow; 35 mg—colloidal silicon dioxide, iron oxide red, and iron oxide yellow. Chemical Structure

Risperidone oral solution, USP contains risperidone, an atypical antipsychotic belonging to the chemical class of benzisoxazole derivatives. The chemical designation is 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one. Its molecular formula is C 23 H 27 FN 4 O 2 and its molecular weight is 410.49. The structural formula is: Risperidone USP is a white to slightly beige powder. It is practically insoluble in water, freely soluble in methylene chloride, and soluble in methanol and 0.1 N HCl. Risperidone USP is also available as a 1 mg/mL oral solution. The inactive ingredients for this solution are benzoic acid, hydrochloric acid, and purified water. Chemical Structure

Ritonavir is an inhibitor of HIV protease with activity against the Human Immunodeficiency Virus (HIV). Ritonavir is chemically designated as 10-Hydroxy-2-methyl-5-(1-methylethyl)-1-[2-(1­-methylethyl)-4-thiazolyl]-3,6-dioxo-8,11-bis(phenylmethyl)-2,4,7,12-tetraazatridecan-13-oic acid, 5-thiazolylmethyl ester, [5S-(5R*,8R*,10R*,11R*)]. Its molecular formula is C 37 H 48 N 6 O 5 S 2 , and its molecular weight is 720.95. Ritonavir has the following structural formula: Ritonavir USP is a white to light-tan, crystalline powder. Ritonavir has a bitter metallic taste. It is freely soluble in methanol and ethanol, soluble in isopropanol and practically insoluble in water. Ritonavir tablets USP are available for oral administration in a strength of 100 mg ritonavir with the following inactive ingredients: copovidone, corn starch, dibasic calcium phosphate anhydrous, dibasic calcium phosphate dihydrate, hypromellose, mannitol, microcrystalline cellulose, polyethylene glycol, polysorbate, powdered cellulose, silicified microcrystalline cellulose, sodium stearyl fumarate, sorbitan monolaurate, talc, and titanium dioxide. chemical structure

Rivaroxaban, USP a factor Xa (FXa) inhibitor, is the active ingredient in rivaroxaban tablets, USP with the chemical name 5-Chloro-N-({(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-1,3-oxazolidin-5­-yl}methyl)-2-thiophenecarboxamide. The molecular formula of rivaroxaban is C 19 H 18 ClN 3 O 5 S and the molecular weight is 435.89. The structural formula is: Rivaroxaban, USP is a pure ( S )-enantiomer. It is a white to yellowish powder. Rivaroxaban, USP is slightly soluble in dimethyl sulfoxide, practically insoluble in acetone and in water. Each rivaroxaban tablet, USP contains 2.5 mg of rivaroxaban, USP. The inactive ingredients of rivaroxaban tablets, USP are: croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, red iron oxide, sodium lauryl sulfate, talc, titanium dioxide, and yellow iron oxide. Chemical Structure

Rivastigmine tartrate is a reversible cholinesterase inhibitor and is known chemically as (S)-N-Ethyl-N-methyl-3-[1-(dimethylamino)ethyl]-phenyl carbamate hydrogen-(2R,3R)-tartrate. Rivastigmine tartrate is commonly referred to in the pharmacological literature as SDZ ENA 713 or ENA 713. It has a molecular formula of C 14 H 22 N 2 O 2 • C 4 H 6 O 6 (hydrogen tartrate salt–hta salt) and a molecular weight of 400.43 g/mol (hta salt). Rivastigmine tartrate USP is a white to off-white powder that is very soluble in water, soluble in ethanol and acetonitrile, slightly soluble in n-octanol and very slightly soluble in ethyl acetate. The distribution coefficient at 37°C in n-octanol/phosphate buffer solution pH 7 is 3.0. Rivastigmine tartrate capsules, USP contain rivastigmine tartrate USP, equivalent to 1.5 mg, 3 mg, 4.5 mg, and 6 mg of rivastigmine base for oral administration. Inactive ingredients are colloidal silicon dioxide , hypromellose, magnesium stearate, and microcrystalline cellulose. Each hard-gelatin capsule contains gelatin, iron oxide red, iron oxide yellow, sodium lauryl sulfate, and titanium dioxide. The capsules are printed with edible ink containing black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. Chemical Structure

Rizatriptan benzoate orally disintegrating tablets USP contain rizatriptan benzoate, a selective 5-hydroxytryptamine 1B/1D (5-HT 1B/1D ) receptor agonist. Rizatriptan benzoate is described chemically as: N,N -dimethyl-5-(1 H -1,2,4-triazol-1-ylmethyl)-1 H ­-indole-3-ethanamine monobenzoate and its structural formula is: Its molecular formula is C 15 H 19 N 5 •C 7 H 6 O 2 , representing a molecular weight of the free base of 269.35. Rizatriptan benzoate is a white to almost white crystalline powder that is soluble in water at about 42 mg per mL (expressed as free base) at 25°C. Rizatriptan benzoate orally disintegrating tablets USP are available for oral administration in strengths of 5 mg and 10 mg (corresponding to 7.265 mg or 14.53 mg of the benzoate salt, respectively). Each orally disintegrating tablet contains the following inactive ingredients: aspartame, crospovidone, mannitol, microcrystalline cellulose, peppermint, pregelatinized starch (maize), and sodium stearyl fumarate. Meets USP Dissolution Test 2. Chemical Structure

Rizatriptan benzoate tablets USP contain rizatriptan benzoate, a selective 5-hydroxytryptamine 1B/1D (5-HT 1B/1D ) receptor agonist. Rizatriptan benzoate is described chemically as: N,N -dimethyl-5-(1 H -1,2,4-triazol-1-ylmethyl)-1 H ­-indole-3-ethanamine monobenzoate and its structural formula is: Its molecular formula is C 15 H 19 N 5 •C 7 H 6 O 2 , representing a molecular weight of the free base of 269.35. Rizatriptan benzoate is a white to almost white crystalline powder that is soluble in water at about 42 mg per mL (expressed as free base) at 25°C. Rizatriptan benzoate tablets USP are available for oral administration in strengths of 5 mg and 10 mg (corresponding to 7.265 mg or 14.53 mg of the benzoate salt, respectively). Each compressed tablet contains the following inactive ingredients: corn starch, iron oxide red, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and pregelatinized starch (maize). Chemical Structure

The active ingredient in roflumilast tablets is roflumilast, USP. Roflumilast and its active metabolite (roflumilast N-oxide) are selective phosphodiesterase 4 (PDE4) inhibitors. The chemical name of roflumilast is N-(3,5-dichloropyridin-4-yl)-3-cyclopropylmethoxy-4-difluoromethoxy-benzamide. Its empirical formula is C 17 H 14 Cl 2 F 2 N 2 O 3 and the molecular weight is 403.22. The chemical structure is: The drug substance is a white to off-white non-hygroscopic powder with a melting point of 160°C. It is freely soluble in acetone, sparingly to slightly soluble in ethanol and practically insoluble in n-Hexane and in water. Roflumilast, USP is supplied as white to off-white, round tablets, flat faced beveled edge, debossed with “T” and “250” or “500” on one side and plain on the other side. Each tablet contains 250 mcg or 500 mcg of roflumilast, USP. Each tablet of roflumilast for oral administration contains the following inactive ingredients: corn starch, hypromellose, lactose monohydrate, magnesium stearate and poloxamer. Chemical Structure

Rufinamide is a triazole derivative structurally unrelated to currently marketed antiepileptic drugs (AEDs). Rufinamide has the chemical name 1-[(2,6-difluorophenyl)methyl]-1 H -1,2,3-triazole-4 carboxamide. It has a molecular formula of C 10 H 8 F 2 N 4 O and a molecular weight of 238.2. The drug substance is a white to off-white crystalline powder. Rufinamide USP is slightly soluble in tetrahydrofuran and in methanol; very slightly soluble in alcohol and in acetonitrile; practically insoluble in water. Rufinamide is also available for oral administration as a liquid containing rufinamide at a concentration of 40 mg/mL. Inactive ingredients include citric acid anhydrous, hydroxyethylcellulose, methylparaben, microcrystalline cellulose and carboxymethylcellulose sodium, noncrystallizing sorbitol solution, orange flavor (which contains dl-alpha-tocopherols and natural & artificial flavors), poloxamer 188, potassium sorbate, propylene glycol, propylparaben, purified water, and simethicone emulsion. structure

Rufinamide is a triazole derivative structurally unrelated to currently marketed antiepileptic drugs (AEDs). Rufinamide has the chemical name 1-[(2,6-difluorophenyl)methyl]-1 H -1,2,3-triazole-4 carboxamide. It has a molecular formula of C 10 H 8 F 2 N 4 O and a molecular weight of 238.2. The drug substance is a white to off-white crystalline powder. Rufinamide USP is slightly soluble in tetrahydrofuran and in methanol; very slightly soluble in alcohol and in acetonitrile; practically insoluble in water. Rufinamide tablets, USP are available for oral administration in film-coated tablets, scored on both sides, containing 200 mg and 400 mg of rufinamide USP. Inactive ingredients are colloidal silicon dioxide, corn starch, croscarmellose sodium, hypromellose, iron oxide red, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, sodium lauryl sulfate, talc, and titanium dioxide. FDA approved dissolution test specifications differ from USP. str

Sapropterin dihydrochloride tablets are an orally administered Phenylalanine Hydroxylase activator (or PAH activator). Sapropterin dihydrochloride, the active pharmaceutical ingredient in sapropterin dihydrochloride tablets, is a synthetic preparation of the dihydrochloride salt of naturally occurring tetrahydrobiopterin (BH4). Sapropterin dihydrochloride is an off-white to pale yellow crystalline powder. The chemical name of sapropterin dihydrochloride is (6R)-2-amino-6-[(1R,2S)-1,2-dihydroxypropyl]-5,6,7,8-tetrahydro-4(1H)-pteridinone dihydrochloride and the molecular formula is C 9 H 15 N 5 O 3 ·2HCl with a molecular weight of 314.17. Sapropterin dihydrochloride has the following structural formula: Sapropterin dihydrochloride is supplied as tablets containing 100 mg of sapropterin dihydrochloride (equivalent to 76.8 mg of sapropterin base). Tablets are off-white to light yellow mottled uncoated round tablets debossed with “S 1” on one side and plain on other side. Each tablet contains the following inactive ingredients: ascorbic acid, crospovidone, dibasic calcium phosphate anhydrous, mannitol, riboflavin and sodium stearyl fumarate. Chemical Structure

Saxagliptin is an orally-active inhibitor of the DPP-4 enzyme. Saxagliptin monohydrate is described chemically as (1 S ,3 S ,5 S )-2-[(2 S )-2-Amino-2-(3- hydroxytricyclo[3.3.1.1 3,7 ]dec-1-yl)acetyl]-2-azabicyclo[3.1.0]hexane-3-carbonitrile, monohydrate or (1 S ,3 S ,5 S )-2-[(2 S )-2-Amino-2-(3-hydroxyadamantan-1-yl)acetyl]-2- azabicyclo[3.1.0]hexane-3-carbonitrile hydrate. The molecular formula is C 18 H 25 N 3 O 2 •H 2 O and the molecular weight is 333.43. The structural formula is: Saxagliptin monohydrate is a white to off-white, non-hygroscopic, crystalline powder. It is sparingly soluble in water at 24°C ± 3°C, slightly soluble in ethyl acetate, and soluble in methanol, ethanol, isopropyl alcohol, acetonitrile, acetone, and polyethylene glycol 400 (PEG 400). Each film-coated tablet of saxagliptin for oral use contains either 2.79 mg saxagliptin hydrochloride (anhydrous) equivalent to 2.5 mg saxagliptin or 5.58 mg saxagliptin hydrochloride (anhydrous) equivalent to 5 mg saxagliptin and the following inactive ingredients: ascorbic acid, crospovidone, glyceryl monostearate, hydroxypropyl cellulose, iron oxide yellow, magnesium sterate, mannitol, microcrystalline cellulose, polyvinyl alcohol, sodium lauryl sulphate, talc and titanium dioxide. In addition, the 2.5 mg tablets contain FD&C yellow#5/Tartrazine aluminium lake and iron oxide black. The 5 mg tablets contain FD&C yellow#6/Sunset yellow FCF aluminium lake and iron oxide red. Saxagliptin Monohydrate Chemical Structure

The active ingredient in sevelamer carbonate for oral suspension is sevelamer carbonate, a polymeric amine that binds phosphate and is meant for oral administration. It was developed as a pharmaceutical alternative to sevelamer hydrochloride. Sevelamer carbonate is an anion exchange resin, with the same polymeric structure as sevelamer hydrochloride, in which carbonate replaces chloride as the counterion. While the counterions differ for the two salts, the polymer itself, the active moiety involved in phosphate-binding, is the same. Sevelamer carbonate is known chemically as poly(allylamine- co -N,N’-diallyl-1,3-diamino-2-hydroxypropane) carbonate salt. Sevelamer carbonate is hygroscopic, but insoluble in water. The structure is represented in Figure 1. Sevelamer Carbonate Powder: Each pouch of Sevelamer Carbonate Powder contains 0.8 g or 2.4 g of sevelamer carbonate on an anhydrous basis. The inactive ingredients are ferric oxide (yellow), orange flavor, sucralose and xanthan gum. Chemical Structure

The active ingredient in sevelamer carbonate tablets is sevelamer carbonate, a polymeric amine that binds phosphate and is meant for oral administration. It was developed as a pharmaceutical alternative to sevelamer hydrochloride. Sevelamer carbonate is an anion exchange resin, with the same polymeric structure as sevelamer hydrochloride, in which carbonate replaces chloride as the counterion. While the counterions differ for the two salts, the polymer itself, the active moiety involved in phosphate-binding, is the same. Sevelamer carbonate is known chemically as poly(allylamine- co -N,N’-diallyl-1,3-diamino-2-hydroxypropane) carbonate salt. Sevelamer carbonate is hygroscopic, but insoluble in water. The structure is represented in Figure 1. Sevelamer Carbonate Tablets: Each film-coated tablet of sevelamer carbonate contains 800 mg of sevelamer carbonate on an anhydrous basis. The inactive ingredients are acetylated monoglycerides, ammonium hydroxide, black iron oxide, colloidal silicon dioxide, crospovidone, glyceryl dibehenate, hydroxypropyl cellulose, hypromellose, mannitol, propylene glycol, shellac glaze and talc. Chemical Structure

The active ingredient in sevelamer hydrochloride tablets is sevelamer hydrochloride, a polymeric amine that binds phosphate and is meant for oral administration. Sevelamer hydrochloride is poly(allylamine hydrochloride) crosslinked with epichlorohydrin in which 40% of the amines are protonated. It is known chemically as poly(allylamine- co -N,N'-diallyl-1,3-diamino-2-hydroxypropane) hydrochloride. Sevelamer hydrochloride is white to off-white hygroscopic powder, practically insoluble in water and in methanol. The structure is represented in Figure 1. Figure 1: Chemical Structure of Sevelamer Hydrochloride The primary amine groups shown in the structure are derived directly from poly(allylamine hydrochloride). The crosslinking groups consist of two secondary amine groups derived from poly(allylamine hydrochloride) and one molecule of epichlorohydrin. Sevelamer Hydrochloride Tablets: Each film-coated tablet of sevelamer hydrochloride contains either 800 mg or 400 mg of sevelamer hydrochloride on an anhydrous basis. The inactive ingredients are acetylated monoglyceride, ammonium hydroxide, black iron oxide, colloidal silicon dioxide, crospovidone, glyceryl dibehenate, hydroxypropyl cellulose, hypromellose, microcrystalline cellulose, propylene glycol, shellac glaze and talc. Chemical Structure

Sildenafil, phosphodiesterase-5 (PDE-5) inhibitor, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type-5 (PDE-5). Sildenafil is also marketed as VIAGRA ® for erectile dysfunction. Sildenafil citrate is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1 H -pyrazolo [4,3- d ] pyrimidin-5-yl)-4-ethoxyphenyl] sulfonyl]-4-methylpiperazine citrate and has the following structural formula: Sildenafil citrate is a white (or) almost white slightly hygroscopic crystalline powder, slightly soluble in water, in methanol and practically insoluble in hexane and a molecular weight of 666.7. Sildenafil for oral suspension is supplied as white to off-white granular powder containing 1.57 g of sildenafil citrate USP (equivalent to 1.12 g sildenafil) in an amber PET bottle intended for reconstitution. Following reconstitution with 90 mL water, the volume of the oral suspension is 112 mL and the oral suspension contains 10 mg/mL sildenafil. The inactive ingredients include citric acid anhydrous, colloidal silicon dioxide, grape flavor, maize maltodextrin, sodium benzoate, sodium citrate (dihydrate), sorbitol, sucralose, titanium dioxide and xanthan gum. In addition to the bottle, a press-in bottle adapter and an oral dosing syringe (with 1 mL and 2 mL dose markings) are provided. str

Silodosin, a selective antagonist of alpha-1 adrenoreceptors. The chemical name of silodosin is 1-(3-Hydroxypropyl)-5-[(2 R )-2-({2-[2-(2,2,2­-trifluoroethoxy)phenoxy]ethyl}amino)propyl]-2,3-dihydro-1 H -indole-7-carboxamide and the molecular formula is C 25 H 32 F 3 N 3 O 4 with a molecular weight of 495.53. The structural formula of silodosin is: Silodosin is a white to pale yellowish white powder that melts at approximately 105 to 109°C. It is freely soluble in ethanol, methanol, N,N-dimethylformamide and practically insoluble in water and 1-Octanol. Each silodosin 8 mg capsule and 4 mg capsule for oral administration contains 8 mg silodosin and 4 mg silodosin respectively and the following inactive ingredients: hydrogenated vegetable oil, mannitol, pregelatinized starch (maize) and sodium lauryl sulfate. In addition, the empty hard gelatin capsules contain gelatin and titanium dioxide. The capsules are imprinted with edible ink containing black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. Silodosin Chemical Structure

SIMLIYA TM (desogestrel and ethinyl estradiol tablets, USP and ethinyl estradiol tablets, USP) provide an oral contraceptive regimen of 21 white to off-white round tablets each containing 0.15 mg desogestrel USP (13-ethyl­-11- methylene-18,19-dinor-17 alpha-pregn- 4-en- 20-yn-17-ol), 0.02 mg ethinyl estradiol USP (19-nor­- 17 alpha-pregna-1,3,5 (10)-trien-20-yne-3,17-diol), and inactive ingredients which include colloidal silicon dioxide, lactose monohydrate, potato starch, povidone, stearic acid and vitamin E, followed by 2 inert green round tablets with the following inactive ingredients: anhydrous lactose, croscarmellose sodium, FD&C blue no. 2 aluminum lake, ferric oxide yellow, magnesium stearate, microcrystalline cellulose and povidone. SIMLIYA TM also contains 5 light blue round tablets containing 0.01 mg ethinyl estradiol USP (19-nor-17 alpha-pregna-1,3,5 (10)-trien-20-yne­-3,17-diol) and inactive ingredients which include colloidal silicon dioxide, FD&C blue no. 1, lactose monohydrate, povidone, pregelatinized starch (maize), stearic acid and vitamin E. The molecular weights for desogestrel and ethinyl estradiol are 310.48 and 296.40 respectively. The structural formulas are as follows: SIMLIYA TM meets USP Dissolution Test 2. Chemical Structure

Simpesse (levonorgestrel and ethinyl estradiol tablets USP and ethinyl estradiol tablets USP) is an extended-cycle oral contraceptive consisting of 84 white tablets each containing 0.15 mg of levonorgestrel USP, a synthetic progestogen and 0.03 mg of ethinyl estradiol USP, and 7 light blue tablets containing 0.01 mg of ethinyl estradiol USP. The structural formulas for the active components are: Levonorgestrel is chemically 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-­17-hydroxy-, (17α)-, (-)-. Ethinyl Estradiol is 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, (17α)-. Each white tablet contains the following inactive ingredients : croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. Each light blue tablet contains the following inactive ingredients : colloidal silicon dioxide, FD&C Blue No. 1, lactose monohydrate, povidone, pregelatinized starch (maize), stearic acid, and vitamin E. Levonorgestrel Chemical Structure Ethinyl Estradiol Chemical Structure

Simvastatin is a prodrug of 3-hydoroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor that is derived synthetically from a fermentation product of Aspergillus terreus . Simvastatin is butanoic acid, 2,2-dimethyl-,1,2,3,7,8,8a-hexahydro-3,7-dimethyl-8-[2-(tetrahydro-4-hydroxy-6-oxo-2 H -pyran-2-yl)-ethyl]-1-naphthalenyl ester, [1 S -[1α,3α,7β,8β (2 S *,4 S *),-8aβ]]. The molecular formula of simvastatin is C 25 H 38 O 5 and its molecular weight is 418.57. Its structural formula is: Simvastatin USP is a white to off-white, nonhygroscopic, crystalline powder that is practically insoluble in water, and freely soluble in chloroform, methanol and ethanol. Simvastatin tablets USP are available for oral administration in strength of 5 mg, 10 mg, 20 mg, 40 mg or 80 mg. Each tablet contains following inactive ingredients: ascorbic acid, lactose monohydrate, microcrystalline cellulose, pregelatinized starch (maize), hydroxypropyl cellulose, hypromellose, titanium dioxide, talc, citric acid monohydrate, isopropyl alcohol, magnesium stearate and butylated hydroxyanisole. Simvastatin 5 mg also contains ferric oxide yellow, simvastatin 10 mg and simvastatin 20 mg also contains ferric oxide red and ferric oxide yellow, simvastatin 40 mg and simvastatin 80 mg also contains ferric oxide red. Chemical Structure

Solifenacin succinate is a muscarinic receptor antagonist. Chemically, solifenacin succinate is a butanedioic acid compound with (1 S )-(3 R )-1-azabicyclo[2.2.2]oct-3-yl 3,4-dihydro-1-phenyl-2(1 H )­-iso-quinolinecarboxylate (1:1) having an molecular formula of C 23 H 26 N 2 O 2 •C 4 H 6 O 4 , and a molecular weight of 480.55. The structural formula of solifenacin succinate is: Solifenacin succinate is a white to pale-yellowish-white crystals or crystalline powder. It is freely soluble at room temperature in water, glacial acetic acid, dimethyl sulfoxide, and methanol. Each solifenacin succinate tablet contains 5 mg or 10 mg of solifenacin succinate and is for oral administration. In addition to the active ingredient solifenacin succinate, each solifenacin succinate tablet also contains the following inactive ingredients: colloidal silicon dioxide, corn starch, hypromellose, lactose monohydrate, magnesium stearate, polyethylene glycol, talc, and titanium dioxide. In addition, the 5 mg tablets also contain yellow iron oxide and the 10 mg tablets contain red iron oxide. Chemical Structure

Sotalol hydrochloride tablets, USP (AF) contains sotalol hydrochloride USP, an antiarrhythmic drug with Class II (beta-adrenoreceptor blocking) and Class III (cardiac action potential duration prolongation) properties. Sotalol hydrochloride tablets, USP (AF) are supplied as a light orange, round tablets for oral administration. Sotalol hydrochloride, USP is a white to off-white powder with a molecular weight of 308.8. It is freely soluble in water, soluble in alcohol, very slightly soluble in chloroform. Chemically, sotalol hydrochloride is d,l- N -[4-[1-hydroxy-2-[(1-methylethyl)amino]ethyl]phenyl]methane-sulfonamide monohydrochloride. The molecular formula is C 12 H 20 N 2 O 3 S∙HCl and is represented by the following structural formula: Sotalol hydrochloride tablets, USP (AF) contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, FD&C Yellow No. 6 Aluminum Lake, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn) and sodium lauryl sulfate. Chemical Structure

Spironolactone oral tablets contain 25 mg, 50 mg, or 100 mg of the aldosterone antagonist spironolactone, 17-hydroxy-7α-mercapto-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone acetate, which has the following structural formula: Spironolactone USP is practically insoluble in water, soluble in alcohol, and freely soluble in benzene and in chloroform. Inactive ingredients include colloidal silicon dioxide, corn starch, lactose monohydrate, magnesium stearate, peppermint oil, polysorbate 80, and povidone. str1

Sulfamethoxazole and trimethoprim oral suspension, USP is a synthetic antibacterial combination product containing 200 mg sulfamethoxazole and 40 mg trimethoprim in each teaspoonful (5 mL). Sulfamethoxazole is N 1 -(5-methyl-3-isoxazolyl) sulfanilamide; the molecular formula is C 10 H 11 N 3 O 3 S. It is a white to off-white, practically odorless, crystalline powder, tasteless compound with a molecular weight of 253.28 and the following structural formula: Trimethoprim is 2,4-diamino-5-(3,4,5-trimethoxybenzyl) pyrimidine; the molecular formula is C 14 H 18 N 4 O 3 . It is a white or cream-colored crystals or crystalline powder with a molecular weight of 290.3 and the following structural formula: Each teaspoonful (5 mL) of the oral suspension contains 200 mg sulfamethoxazole and 40 mg trimethoprim as well as the following inactive ingredients: alcohol 0.04% (v/v), carboxymethylcellulose sodium, citric acid anhydrous, colloidal silicon dioxide, FD&C Red #40, flavour cherry #557, glycerin, methyl paraben, microcrystalline cellulose and carboxymethylcellulose sodium, polysorbate 80, purified water, saccharin sodium, sodium benzoate, and sorbitol solution. Sulfamethoxazole Chemical Structure Trimethoprim Chemical Structure