ajanta pharma usa inc. - Medication Listings

Metformin hydrochloride extended-release tablets, USP contains the biguanide antihyperglycemic agent metformin in the form of monohydrochloride salt. The chemical name of metformin hydrochloride, USP is N, N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown: Metformin hydrochloride USP is a white crystalline powder with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.62. Metformin hydrochloride USP is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pKa of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended-release tablets, USP contain 500 mg or 1,000 mg of metformin hydrochloride USP, which is equivalent to 389.93 mg or 779.86 mg metformin, respectively. Each 500 mg and 1,000 mg tablet contains hypromellose, magnesium stearate, povidone, pregelatinized starch, ethylcellulose and polyethylene glycol. Composition of imprinting ink: Shellac, ferrosoferric oxide, propylene glycol and ammonium hydroxide. Metformin hydrochloride extended-release tablets meets USP Dissolution Test 26. structure

Metformin hydrochloride extended-release tablets, USP contain the biguanidine antihyperglycemic agent, metformin, in the form of monohydrochloride salt. The chemical name of metformin hydrochloride USP is N, N-dimethylimidodicarbonimidic diamide hydrochloride with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.62. Its structural formula is: Metformin hydrochloride USP is a white crystalline powder that is freely soluble in water and practically insoluble in acetone, ether and chloroform. The pKa of metformin are 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended-release tablets, USP deliver 500 mg or 1,000 mg of metformin hydrochloride, which is equivalent to 389.93 mg or 779.86 mg metformin, respectively. In addition to the active ingredient metformin hydrochloride, each tablet contains the following inactive ingredients: hypromellose, magnesium stearate, polyethylene glycol (PEG 400), povidone, pregelatinized starch, ethyl cellulose. Imprinting ink contains: shellac, ferrosoferric oxide, propylene glycol and ammonium hydroxide. Metformin hydrochloride extended-release tablets meets USP Dissolution Test 18. structure

Montelukast sodium USP, the active ingredient in montelukast sodium tablets, chewable tablets and oral granules, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium is described chemically as [ R -( E )]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl] cyclopropaneacetic acid, monosodium salt. The empirical formula is C 35 H 35 ClNNaO 3 S, and its molecular weight is 608.18. The structural formula is: Montelukast sodium is a hygroscopic, optically active, white to off-white powder. Montelukast sodium is freely soluble in ethanol, methanol, and water and practically insoluble in acetonitrile. Each 10-mg film-coated montelukast sodium tablet contains 10.4 mg montelukast sodium USP, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, hydroxypropyl cellulose, and magnesium stearate. The film coating consists of: hydroxypropyl methylcellulose, hydroxypropyl cellulose, titanium dioxide, ferric oxide red and ferric oxide yellow. Each 4-mg and 5-mg chewable montelukast sodium tablet contains 4.2 and 5.2 mg montelukast sodium USP, respectively, which are equivalent to 4 and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: mannitol, microcrystalline cellulose, hydroxypropyl cellulose, ferric oxide red, croscarmellose sodium, cherry flavor, aspartame, and magnesium stearate. Each sachet of montelukast sodium 4-mg oral granules contains 4.2 mg montelukast sodium USP, which is equivalent to 4 mg of montelukast. The oral granule formulation contains the following inactive ingredients: mannitol, hydroxypropyl cellulose, and magnesium stearate. Montelukast sodium oral granules meets USP Dissolution Test 4. structure

The active ingredient in pantoprazole sodium for delayed-release oral suspension a PPI, is a substituted benzimidazole, sodium 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1 H -benzimidazole sesquihydrate, a compound that inhibits gastric acid secretion. Its empirical formula is C 16 H 14 F 2 N 3 NaO 4 S x 1.5 H 2 O, with a molecular weight of 432.4. The structural formula is: Pantoprazole sodium sesquihydrate is a white to off-white powder. Pantoprazole has weakly basic and acidic properties. Pantoprazole sodium sesquihydrate is freely soluble in water, in methanol, in dehydrated alcohol, practically insoluble in hexane and in dichloromethane. The stability of the compound in aqueous solution is pH-dependent. The rate of degradation increases with decreasing pH. At ambient temperature, the degradation half-life is approximately 2.8 hours at pH 5 and approximately 220 hours at pH 7.8. Pantoprazole sodium for delayed-release oral suspension is supplied as a for delayed-release oral suspension in unit dose packets, available in one strength 40 mg pantoprazole, (equivalent to 45.1 mg of pantoprazole sodium). Pantoprazole sodium for delayed-release oral suspension contains the following inactive ingredients: crospovidone, hypromellose, methacrylic acid and ethyl acrylate copolymer dispersion, microcrystalline cellulose, polysorbate 80, sodium carbonate, sodium hydroxide, talc, titanium dioxide, triethyl citrate, polyethylene glycol and yellow ferric oxide. 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, USP 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, USP is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7. Sildenafil for Oral Suspension: Sildenafil for oral suspension is supplied as off-white to light yellow powder containing 1.57 g of sildenafil citrate, USP (equivalent to 1.12 g sildenafil) in an amber glass bottle intended for reconstitution. Following reconstitution with 90 mL water, the total 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, sodium benzoate, sodium citrate dihydrate, sorbitol, sucralose, titanium dioxide, and xanthan gum. Composition of grape flavor: Maize maltodextrin and flavorings. 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. 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, USP is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7. Sildenafil Tablets: Sildenafil tablets, USP is formulated as white, film-coated, circular, biconvex tablets for oral administration. Each tablet contains sildenafil citrate USP equivalent to 20 mg of sildenafil. In addition to the active ingredient, sildenafil citrate USP, each tablet contains the following inactive ingredients: anhydrous dibasic calcium phosphate, colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, polyethylene glycol, titanium dioxide, polyvinyl alcohol and talc. structure

Sildenafil tablets, USP, an oral therapy for erectile dysfunction, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Sildenafil citrate USP 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 USP is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7. Sildenafil tablets, USP are formulated as green, oval-shaped, beveled edge, biconvex, film-coated tablets equivalent to 25 mg, 50 mg and 100 mg of sildenafil for oral administration. In addition to the active ingredient, sildenafil citrate, each tablet contains the following inactive ingredients: microcrystalline cellulose, anhydrous dibasic calcium phosphate, croscarmellose sodium, magnesium stearate, colloidal silicon dioxide, polyvinyl alcohol, talc, polyethylene glycol, titanium dioxide, FD & C Blue #1/brilliant blue FCF aluminum lake, D & C yellow # 10 aluminum lake. FDA approved dissolution test specifications differ from USP. str

Duloxetine hydrochloride USP is a selective serotonin and norepinephrine reuptake inhibitor (SNRI) for oral administration. Its chemical designation is (+)-( S )- N -methyl-γ-(1-naphthyloxy)-2-thiophenepropylamine hydrochloride. The molecular formula is C 18 H 19 NOS•HCl, which corresponds to a molecular weight of 333.88. The structural formula is: Duloxetine hydrochloride USP is a white to brownish-white solid, which is slightly soluble in water. Each capsule contains enteric-coated pellets of 20 mg, 30 mg, 40 mg or 60 mg of duloxetine (equivalent to 22.4 mg, 33.7 mg, 44.9 mg or 67.3 mg of duloxetine hydrochloride, USP respectively). These enteric-coated pellets are designed to prevent degradation of the drug in the acidic environment of the stomach. Inactive ingredients include sugar spheres, hypromellose, sucrose, talc, methacrylic acid copolymer dispersion, and triethyl citrate. The capsule shell contains gelatin, FD&C Red No. 3 (40 mg), FD&C Blue No. 1 (40 mg), FD&C Blue No. 2 (20 mg, 30 mg, 60 mg), titanium dioxide, and sodium lauryl sulfate. For 20 mg, 30 mg, 40 mg (body & cap) and 60 mg (body only) strengths, imprinting black ink contains shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide, potassium hydroxide and purified water. For 60 mg (cap only) strength, imprinting white ink contains shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, purified water, potassium hydroxide, and titanium dioxide. USP Assay & Organic Impurities test pending. structure

Oxybutynin chloride, USP is an antispasmodic, muscarinic antagonist. Each oxybutynin chloride extended-release tablet, USP contains 5 mg, 10 mg, or 15 mg of oxybutynin chloride USP, formulated as a once-a-day controlled-release tablet for oral administration. Oxybutynin chloride, USP is administered as a racemate of R- and S-enantiomers. Chemically, oxybutynin chloride, USP is 4(diethylamino-but-2-ynyl (RS) 2-cyclohexyl-2-hydroxy 2 phenyl acetate hydrochloride. The molecular formula of oxybutynin chloride, USP is C 22 H 31 NO 3 •HCl. Its structural formula is: Oxybutynin chloride, USP is a white crystalline powder with a molecular weight of 393.95. It is freely soluble in water and in alcohol, very soluble in methanol and in chloroform, soluble in acetone, slightly soluble in ether, very slightly soluble in hexane. Oxybutynin chloride extended-release tablets, USP also contains the following inert ingredients: anhydrous dibasic calcium phosphate, povidone, hypromellose, colloidal silicon dioxide, magnesium stearate, polyethylene glycol, methacrylic acid copolymer type c, talc, titanium dioxide, triethyl citrate, sodium bicarbonate, sodium lauryl sulfate, ferrosoferric oxide, ferric oxide red (in 10 mg only) and iron oxide yellow (in 5 mg and 15 mg only). The imprinting material contains: shellac glaze, black iron oxide, propylene glycol and ammonium hydroxide. Meets USP Dissolution Test 9. System Components and Performance Oxybutynin chloride extended-release tablets, USP are formulated to deliver oxybutynin chloride at a controlled rate over approximately 24 hours. The dosage form is comprised of a hydrophilic cellulose polymer matrix tablet surrounded by an enteric coating system. The enteric coat is insoluble in the low pH environment of the stomach. As the tablet passes through the stomach and enters the higher pH environment of the small intestine, the enteric coating dissolves and/or erodes to expose the polymer matrix tablet which swells and releases drug at a controlled rate via diffusion and/or erosion. oxybutynin-structure

Acetazolamide, USP an inhibitor of the enzyme carbonic anhydrase, is a white to faintly yellowish white crystalline, odorless powder, weakly acidic, very slightly soluble in 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: Acetazolamide is available as oral tablets containing 125 mg and 250 mg of acetazolamide, respectively, and the following inactive ingredients: Corn Starch, Dibasic Calcium Phosphate Dihydrate, Magnesium Stearate, Purified Water, Sodium Starch Glycolate, and Povidone. structure

Almotriptan tablets, USP contain almotriptan malate USP, a selective 5-hydroxytryptamine 1B/1D (5-HT 1B/1D ) receptor agonist. Almotriptan malate is chemically designated as 1-[[[3-[2-(Dimethylamino)ethyl]-1H-indol-5-yl]methyl]sulfonyl]pyrrolidine(±)-hydroxybutanedioate (1:1), and its structural formula is: Its empirical formula is C 17 H 25 N 3 O 2 S-C 4 H 6 O 5 , representing a molecular weight of 469.55. Almotriptan is a white to off-white crystalline powder that is soluble in water. Almotriptan tablets, USP for oral administration contains almotriptan malate equivalent to 6.25 or 12.5 mg of almotriptan. Each compressed tablet contains the following inactive ingredients: mannitol, microcrystalline cellulose, povidone, sodium starch glycolate, sodium stearyl fumarate, polyethylene glycols, titanium dioxide and hypromelloses. structure

Amlodipine besylate and olmesartan medoxomil provided as a tablet for oral administration, is a combination of the calcium channel blocker (CCB) amlodipine besylate, USP and the angiotensin II receptor blocker (ARB) olmesartan medoxomil, USP. The amlodipine besylate, USP component of amlodipine and olmesartan medoxomil tablets, USP is chemically described as 3-ethyl-5-methyl (±)-2-[(2- aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its empirical formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S. Olmesartan medoxomil, USP a prodrug, is hydrolyzed to olmesartan during absorption from the gastrointestinal tract. The olmesartan medoxomil, USP component of amlodipine and olmesartan medoxomil tablets, USP is chemically described as 2,3-dihydroxy-2-butenyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[ p- ( o- 1 H -tetrazol-5-ylphenyl)benzyl] imidazole-5-carboxylate, cyclic 2,3-carbonate. Its empirical formula is C 29 H 30 N 6 O 6 . The structural formula for amlodipine besylate, USP is: The structural formula for olmesartan medoxomil, USP is: Amlodipine and olmesartan medoxomil tablets, USP contain amlodipine besylate, USP a white or almost white powder, and olmesartan medoxomil, USP white to off-white crystalline powder. The molecular weights of amlodipine besylate, USP and olmesartan medoxomil, USP are 567.1 and 558.59, respectively. Amlodipine besylate, USP is slightly soluble in water and 2-propanol, sparingly soluble in ethanol, freely soluble in methanol. Olmesartan medoxomil, USP is practically insoluble in water and sparingly soluble in methanol. Each tablet of amlodipine and olmesartan medoxomil also contains the following inactive ingredients: microcrystalline cellulose, pregelatinized starch, colloidal silicon dioxide, croscarmellose sodium, and magnesium stearate. The color coatings contain polyvinyl alcohol, macrogol/polyethylene glycol, titanium dioxide, talc, iron oxide yellow (5/40 mg, 10/20 mg, 10/40 mg tablets), iron oxide red (10/20 mg and 10/40 mg tablets), and iron oxide black (10/20 mg, 10/40 mg tablets). amlodipine-structure olmesartan-structure

Aripiprazole is an atypical antipsychotic drug that is available as aripiprazole tablets, USP. Aripiprazole USP is 7-[4-[4-(2,3-dichlorophenyl)-1- piperazinyl]butoxy]-3,4-dihydrocarbostyril. The empirical formula is C 23 H 27 Cl 2 N 3 O 2 and its molecular weight is 448.38. The chemical structure is: Aripiprazole tablets, USP are available in 2 mg, 5 mg, 10 mg, 15 mg, 20 mg, and 30 mg strengths. Inactive ingredients include lactose monohydrate, magnesium stearate, microcrystalline cellulose, corn starch, hydroxypropyl cellulose and low-substituted hydroxypropyl cellulose. The 5 mg tablet also contains ferric oxide yellow. The 10 mg tablet, 15 mg tablet, 20 mg tablet, and 30 mg tablet also contains ferric oxide red. Aripiprazole tablets meets USP Dissolution Test 2. Structure

Brexpiprazole, an atypical antipsychotic, is available as brexpiprazole tablets. Brexpiprazole is 7-{4-[4-(1- Benzothiophen-4-yl)piperazin-1-yl]butoxy}quinolin-2(1 H )-one. The molecular formula is C 25 H 27 N 3 O 2 S and its molecular weight is 433.57. The chemical structure is: Brexpiprazole tablets are for oral administration and are available in 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg and 4 mg strengths. Inactive ingredients include microcrystalline cellulose, lactose monohydrate, low-substituted hydroxypropyl cellulose, hydroxypropyl cellulose, magnesium stearate, hypromellose, talc, propylene glycol, polyethylene glycol. Colorants includes titanium dioxide, iron oxide red (0.25 mg and 3 mg), FD&C Yellow #6 (0.5 mg), iron oxide yellow (1 mg, 2 mg and 3 mg), FD&C Blue #2 (2 mg). structure

Captopril tablets, USP are a specific competitive inhibitor of angiotensin I-converting enzyme (ACE), the enzyme responsible for the conversion of angiotensin I to angiotensin II. Captopril is designated chemically as 1-[(2S)-3-mercapto-2-methylpropionyl] -L-proline [MW 217.28] and has the following structure: Captopril USP is a white to off-white crystalline powder that may have a slight sulfurous odor; it is soluble in water (approx. 126 mg/mL), methanol, and ethanol and sparingly soluble in chloroform and ethyl acetate. Captopril tablets, USP are available in potencies of 12.5 mg, 25 mg, 50 mg, and 100 mg as scored tablets for oral administration. Inactive ingredients: microcrystalline cellulose, lactose, crospovidone, colloidal silicon dioxide and stearic acid. captopril-structure

Carbamazepine USP, is an anticonvulsant and specific analgesic for trigeminal neuralgia, available for oral administration as extended-release tablets of 100 mg, 200 mg and 400 mg. Its chemical name is 5 H -dibenz[ b,f ]azepine-5-carboxamide, and its structural formula is: Carbamazepine USP is a white to off-white powder, slightly soluble in acetone, very slightly soluble in ethanol, insoluble in water. Its molecular weight is 236.27. Inactive Ingredients : cellulose acetate, dextrates, ferric oxide yellow, ferric oxide red, hypromellose, hydroxyethyl cellulose, magnesium stearate, mannitol, polyethylene glycol, sodium lauryl sulfate. Each tablet is printed with opacode S-1-17823 black ink which contains ammonium hydroxide, black iron oxide, isopropyl alcohol, n-butyl alcohol, propylene glycol and shellac. FDA approved dissolution specification differs from the USP dissolution specification. structure

Chlorthalidone an oral antihypertensive/diuretic. It is a monosulfamyl diuretic that differs chemically from thiazide diuretics in that a double-ring system is incorporated in its structure. It is 2-Chloro-5(1-hydroxy-3-oxo-1- isoindolinyl) benzenesulfonamide with the following structural formula: Molecular Formula: C 14 H 11 ClN 2 O 4 S Molecular weight: 338.77 Chlorthalidone, USP is practically insoluble in water, in ether, and in chloroform; soluble in methanol; slightly soluble in ethanol. Chlorthalidone tablets, USP are available containing either 25 mg or 50 mg of chlorthalidone, USP and the following inactive ingredients: colloidal silicon dioxide, microcrystalline cellulose, pregelatinized starch (corn), sodium starch glycolate Type A (potato), magnesium stearate. structure

Cholestyramine for oral suspension, USP, the chloride salt of a basic anion exchange resin, a cholesterol lowering agent, is intended for oral administration. Cholestyramine resin is quite hydrophilic, but insoluble in water. Cholestyramine resin is not absorbed from the digestive tract. Nine grams of cholestyramine for oral suspension, USP contain 4 grams of cholestyramine resin. It is represented by the following structural formula: Representation of structure of main polymeric groups Inactive ingredients: citric acid monohydrate, colloidal silicon dioxide, propylene glycol alginate, sucrose, xanthan gum, orange flavor, D&C yellow No. 10 alum lake, FD&C yellow No. 6 alum lake. Cholestyramine

Clomipramine hydrochloride capsules, USP are an antiobsessional drug that belongs to the class (dibenzazepine) of pharmacologic agents known as tricyclic antidepressants. Clomipramine hydrochloride is available as capsules of 25 mg, 50 mg, and 75 mg for oral administration. Clomipramine hydrochloride, USP is 3-chloro-5-[3-(dimethylamino)propyl]-10,11-dihydro-5 H -dibenz[ b , f ]azepine monohydrochloride, and its structural formula is Molecular Formula = C 19 H 23 ClN 2 ● HCl Molecular Weight = 351.31 Clomipramine hydrochloride, USP is a white or slightly yellow crystalline powder. It is freely soluble in water and in methylene chloride, soluble in alcohol and practically insoluble in ethyl ether and in hexane. Each capsule contains clomipramine hydrochloride, USP 25 mg, 50 mg and 75 mg and inactive ingredients pregelatinized starch, colloidal silicon dioxide and magnesium stearate. Additionally hard gelatin capsule shell contains FD&C Red 40 (25 mg), FD&C Blue 1 (50 mg), titanium dioxide, gelatin, D&C Yellow 10 and FD& Yellow 6 (25 mg, 50 mg and 75 mg). The capsule is imprinted with black pharmaceutical ink which contains shellac, propylene glycol, ammonia, black iron oxide and potassium hydroxide. structure

Clonidine hydrochloride extended-release tablets, USP are a centrally acting alpha 2 -adrenergic agonist available as 0.1 mg extended-release tablets for oral administration. Each 0.1 mg tablet is equivalent to 0.087 mg, respectively, of the free base. The inactive ingredients are sodium lauryl sulfate, microcrystalline cellulose, hypromellose, colloidal silicon dioxide, and magnesium stearate. The formulation is designed to delay the absorption of active drug in order to decrease peak to trough plasma concentration differences. Clonidine hydrochloride, USP is an imidazoline derivative and exists as a mesomeric compound. The chemical name is 2-(2,6-dichlorophenylamino)2-imidazoline hydrochloride. The following is the structural formula: C 9 H 9 Cl 2 N 3 •HCl Mol. Wt. 266.56 Clonidine hydrochloride, USP is an odorless, bitter, white, crystalline substance soluble in water and alcohol. clonidine_structure

Divalproex sodium is a stable co-ordination compound comprised of sodium valproate and valproic acid in a 1:1 molar relationship and formed during the partial neutralization of valproic acid with 0.5 equivalent of sodium hydroxide. Chemically it is designated as sodium hydrogen bis(2-propylpentanoate). Divalproex sodium has the following structure: Divalproex sodium, USP occurs as a white to off-white powder. Divalproex sodium delayed-release capsules, USP (sprinkle) are for oral administration. Divalproex sodium delayed-release capsules, USP (sprinkle) contain specially coated particles of divalproex sodium equivalent to 125 mg of valproic acid in a hard gelatin capsule. Inactive Ingredients 125 mg Divalproex sodium delayed-release capsules, USP (sprinkle): sugar spheres (contains sucrose and maize starch), ethylcellulose, triethyl citrate, talc, silicon dioxide, and magnesium stearate. The capsule shells contain gelatin, FD&C Blue 1, D&C Red 28, and titanium dioxide. Each capsule is printed with black pharmaceutical ink which contains: shellac, propylene glycol, black iron oxide and potassium hydroxide. Divalproex sodium delayed-release capsules meet USP Dissolution Test 5. structure

Doxepin tablets are available in 3 mg and 6 mg strength tablets for oral administration. Each tablet contains 3.39 mg or 6.78 mg doxepin hydrochloride, USP 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, USP is a white or almost white crystalline powder that is freely soluble in water, in alcohol and in methylene chloride. 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: microcrystalline cellulose, colloidal silicon dioxide, and magnesium stearate. The 6 mg tablet also contains FD&C Blue No.2 Aluminium lake IH. structure

Doxepin hydrochloride, USP is one of a class of psychotherapeutic agents known as dibenzoxepin tricyclic compounds. The molecular formula of the compound is C 19 H 21 NO•HCl having a molecular weight of 316. It is a white or almost white crystalline powder freely soluble in water, alcohols and methylene chloride. It may be represented by the following structural formula. Chemically, doxepin hydrochloride, USP is a dibenzoxepin derivative and is the first of a family of tricyclic psychotherapeutic agents. Specifically, it is an isomeric mixture of:1-Propanamine, 3-dibenz[ b , e ]oxepin-11(6 H )ylidene- N , N -dimethyl-, hydrochloride. Each 10 mg, 25 mg, 50 mg, 75 mg and 100 mg doxepin capsule, USP for oral administration contains doxepin hydrochloride, USP equivalent to 10 mg, 25 mg, 50 mg, 75 mg and 100 mg doxepin, respectively and the following inactive ingredients: microcrystalline cellulose, pregelatinized starch, sodium lauryl sulfate and magnesium stearate The hard gelatin capsule shell contain titanium dioxide, gelatin, sodium lauryl sulfate, FD & C Yellow 6, D & C Yellow 10, and FD & C Green 3. The imprinting ink contains shellac, propylene glycol, black iron oxide and potassium hydroxide. doxepin-structure

Doxycycline hyclate, USP is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate capsules, USP for oral administration. The structural formula of doxycycline monohydrate is with a molecular formula of C 22 H 24 N 2 O 8 •H 2 O and a molecular weight of 462.46. The chemical designation for doxycycline is 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrate. The molecular formula for doxycycline hydrochloride hemiethanolate hemihydrate is (C 22 H 24 N 2 O 8 •HCl) 2 •C 2 H 6 O•H 2 O and the molecular weight is 1025.89. Doxycycline is a light-yellow crystalline powder. Doxycycline hyclate, USP 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 formulations are: hard gelatin capsules (contains FD&C Blue 1, gelatin and titanium dioxide); magnesium stearate; microcrystalline cellulose; sodium lauryl sulfate. The black imprinting ink contains black iron oxide, propylene glycol, shellac, and potassium hydroxide. structure

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

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone USP is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablet are microcrystalline cellulose, sodium starch glycolate, hypromelloses, polyoxyl 40 hydrogenated castor oil, purified water, magnesium stearate, polyethylene glycols, ferric oxide red, ferric oxide yellow, titanium dioxide, polyvinyl alcohol and talc. structure

The active ingredient in famotidine for oral suspension USP is a histamine-2 (H 2 ) receptor antagonist. Famotidine is N' -(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]propanimidamide. The molecular formula of famotidine is C 8 H 15 N 7 O 2 S 3 and its molecular weight is 337.45 Its structural formula is: Each 5 mL of famotidine for oral suspension USP when prepared as directed contains 40 mg of famotidine USP and the following inactive ingredients: citric acid monohydrate, flavors (cherry, banana and peppermint), powdered cellulose, sucrose, sucralose, xanthan gum. Added as preservatives are methylparaben sodium, propylparaben sodium, and sodium benzoate. Famotidine USP is a white to pale yellow crystalline powder that is freely soluble in dimethyl formamide, glacial acetic acid, slightly soluble in methanol, very slightly soluble in water, practically insoluble in acetone, in alcohol, in chloroform, in ether and in ethyl acetate. structure

Fenofibrate tablets, USP are a lipid regulating agent available as tablets for oral administration. Each tablet contains 54 mg or 160 mg of fenofibrate, USP. The chemical name for fenofibrate, USP is 2-[4-(4-chlorobenzoyl) phenoxy]-2-methyl-propanoic acid, 1-methylethyl ester with the following structural formula: The empirical formula is C 20 H 21 O 4 CI and the molecular weight is 360.83; fenofibrate, USP is insoluble in water. The melting point is 79°C to 82°C. Fenofibrate, USP is a white solid which is stable under ordinary conditions. Inactive Ingredients Each 54 mg fenofibrate tablet contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, crospovidone, iron oxide yellow, lactose monohydrate, microcrystalline cellulose, polyvinyl alcohol, povidone, sodium lauryl sulfate, sodium starch glycolate, sodium stearyl fumarate, talc, titanium dioxide, glyceryl mono and dicaprylocaprate, and D&C yellow #10 lake. Each 160 mg fenofibrate tablet contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, crospovidone, lactose monohydrate, microcrystalline cellulose, polyvinyl alcohol, povidone, sodium lauryl sulfate, sodium starch glycolate, sodium stearyl fumarate, talc, titanium dioxide, and glyceryl mono and dicaprylocaprate. Fenofibrate tablet meets USP Dissolution Test 3. structure

Fenofibrate capsules, USP, micronized, is a lipid regulating agent available as capsules for oral administration. Each capsule contains 67 mg, 134 mg or 200 mg of micronized fenofibrate. The chemical name for fenofibrate is 2-[4-(4-chlorobenzoyl) phenoxy]-2-methyl-propanoic acid, 1-methylethyl ester with the following structural formula: The empirical formula is C 20 H 21 O 4 Cl and the molecular weight is 360.83; fenofibrate is insoluble in water. The melting point is 79°C to 82°C. Fenofibrate is a white solid which is stable under ordinary conditions. Inactive Ingredients: Each capsule also contains crospovidone, povidone, lactose monohydrate, magnesium stearate, pregelatinized starch, sodium lauryl sulfate, croscarmellose sodium and talc. Gelatin capsule composition: Gelatin, sodium lauryl sulfate, titanium dioxide, D & C Red 28, FD & C Blue 1 (67 mg and 134 mg), FD & C Red 40 (67 mg and 200 mg) and iron oxide yellow (200 mg). Imprinting ink contains: shellac, propylene glycol, black iron oxide and potassium hydroxide. structure

Fluphenazine hydrochloride USP is a trifluoromethyl phenothiazine derivative intended for the management of schizophrenia. Fluphenazine hydrochloride is described chemically as 4-[3-[2-(Trifluoromethyl) phenothiazin-10-yl]propyl]-1-piperazineethanol dihydrochloride and its molecular formula is C 22 H 26 F 3 N 3 OS.2HCl. The molecular structure is shown below: Fluphenazine Hydrochloride Tablets, USP contain 1 mg, 2.5 mg, 5 mg and 10 mg fluphenazine hydrochloride USP per tablet. Inactive ingredients: Aluminum Lake of the colorant FD&C yellow #6 for 2.5 mg, 5 mg and 10 mg only, microcrystalline cellulose, pregelatinized starch, magnesium stearate, lactose monohydrate, hypromellose, polyethylene glycol, polysorbate 80, polydextrose, triacetin, sodium alginate, lecithin (soy), and titanium dioxide. FDA approved dissolution acceptance criterion differ from the USP dissolution test 1. structure

Fluvoxamine maleate extended-release capsules, for oral administration, contain fluvoxamine maleate, USP a selective serotonin (5-HT) reuptake inhibitor (SSRI) belonging to the chemical series, the 2-aminoethyl oxime ethers of aralkylketones. Fluvoxamine maleate, USP is chemically designated as 5-methoxy-4'-(trifluoromethyl) valerophenone-(E)-O-(2-aminoethyl)oxime maleate (1:1) and has the empirical formula C 15 H 21 O 2 N 2 F 3 •C 4 H 4 O 4 . Its molecular weight is 434.41. The structural formula is: Fluvoxamine maleate, USP is a white to off-white, odorless, crystalline powder that is sparingly soluble in water, freely soluble in ethanol and chloroform, and practically insoluble in diethyl ether. Fluvoxamine maleate extended-release capsules are available in 100 mg and 150 mg strengths for oral administration. In addition to the active ingredient, fluvoxamine maleate, USP each capsule contains the following inactive ingredients: ethyl cellulose, hydroxypropyl cellulose, hypromellose, sugar spheres (which contain sucrose and corn starch), triethyl citrate, and talc. The capsule shell contains gelatin, titanium dioxide, black iron oxide, iron oxide yellow, FD&C Blue No. 1 and sodium lauryl sulfate. The capsule shell is printed with black ink. The black ink contains shellac, propylene glycol, potassium hydroxide, and black iron oxide. Fluvoxamine maleate extended-release capsules are gluten-free. structure

Guanfacine hydrochloride, USP is a centrally acting antihypertensive with α 2 -adrenoceptor agonist properties in tablet form for oral administration. The chemical name of guanfacine hydrochloride, USP is N -Amidino- 2-(2,6-dichlorophenyl) acetamide monohydrochloride and its molecular weight is 282.55. Its structural formula is: Guanfacine hydrochloride, USP is a white to off-white powder; sparingly soluble in water and alcohol and very slightly soluble in acetone. The tablets contain the following inactive ingredients: 1 mg—Anhydrous citric acid, microcrystalline cellulose, pregelatinized starch, stearic acid. 2 mg—Anhydrous citric acid, microcrystalline cellulose, pregelatinized starch, stearic acid. Guanfacine tablets meets USP Dissolution Test 2. structure

Ketorolac Tromethamine Tablets, USP are a member of the pyrrolo-pyrrole group of nonsteroidal anti- inflammatory drugs (NSAIDs). The chemical name for ketorolac tromethamine, USP is (±)-5-benzoyl- 2,3-dihydro-1 H -pyrrolizine-1-carboxylic acid, compound with 2-amino-2-(hydroxymethyl)-1,3- propanediol (1:1). The structural formula is: C 15 H 13 NO 3 . C 4 H 11 NO 3 M.W. 376.40 Ketorolac tromethamine, USP is a racemic mixture of [-]S and [+]R ketorolac tromethamine, USP. Ketorolac tromethamine, USP may exist in three crystal forms. All forms are equally soluble in water. Ketorolac tromethamine, USP has a pKa of 3.5 and an n-octanol/water partition coefficient of 0.26. Ketorolac Tromethamine Tablets, USP are white, round, convex, unscored, film-coated tablets. Each tablet, for oral administration, contains 10 mg ketorolac tromethamine, USP, the active ingredient. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, hypromellose 2910 (6 mpa.s), polyethylene glycol 400 and titanium dioxide. Image

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. Lamotrigine’s chemical name is 3,5-diamino-6-(2,3-dichlorophenyl)- as -triazine, its molecular formula is C 9 H 7 N 5 Cl 2 , and its molecular weight is 256.09. Lamotrigine, USP is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine orally disintegrating tablets, USP are supplied for oral administration. The tablets contain 25 mg (white to off-white), 50 mg (white to off-white), 100 mg (white to off-white), or 200 mg (white to off-white) of lamotrigine, USP and the following inactive ingredients: artificial peppermint flavor, croscarmellose sodium, microcrystalline cellulose, magnesium stearate, mannitol, colloidal silicon dioxide, pregelatinized starch and sucralose. Composition of peppermint flavor: Maize maltodextrin, modified corn starch and flavorings. Lamotrigine orally disintegrating tablets, USP are formulated using in-house technologies designed to mask the bitter taste of lamotrigine, USP. The formulation contains flavor and sweetener and has a good mouth feel, no grittiness, no after taste, better palatability and gives a rapid dissolution profile. structure

The active ingredient in lansoprazole delayed-release capsules USP is lansoprazole, a substituted benzimidazole, 2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl] methyl] sulfinyl] benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 16 H 14 F 3 N 3 O 2 S with a molecular weight of 369.37. Lansoprazole has the following structure: Lansoprazole, USP is a white to brownish-white odorless crystalline powder which melts with decomposition at approximately 166 ° C. Lansoprazole is freely soluble in dimethylformamide; soluble in methanol; sparingly soluble in ethanol; slightly soluble in ethyl acetate, dichloromethane and acetonitrile; very slightly soluble in ether; and practically insoluble in hexane and water. Lansoprazole is stable when exposed to light for up to two months. The rate of degradation of the compound in aqueous solution increases with decreasing pH. The degradation half-life of the drug substance in aqueous solution at 25°C is approximately 0.5 hour at pH 5.0 and approximately 18 hours at pH 7.0. Lansoprazole is supplied in delayed-release capsules for oral administration. Lansoprazole delayed-release capsules are available in two dosage strengths: 15 mg and 30 mg of lansoprazole per capsule. Each delayed-release capsule contains enteric-coated granules consisting of 15 mg or 30 mg of lansoprazole (active ingredient) and the following inactive ingredients: sugar sphere, methacrylic acid copolymer, low substituted hydroxypropyl cellulose, magnesium carbonate, talc, polyethylene glycol, hydroxypropyl cellulose, colloidal silicon dioxide, hypromellose, ferric oxide red, ferric oxide black, ferric oxide yellow, sodium bicarbonate, sodium lauryl sulfate. The imprinting ink contains shellac, propylene glycol, strong ammonia solution, black iron oxide and potassium hydroxide. Lansoprazole delayed-release capsules meets USP Dissolution Test 2. Structure

Memantine hydrochloride USP is an orally active NMDA receptor antagonist. The chemical name for memantine hydrochloride is 1-amino-3,5-dimethyladamantane hydrochloride with the following structural formula: The molecular formula is C 12 H 21 N•HCl and the molecular weight is 215.76. Memantine hydrochloride USP occurs as a fine white to off-white powder and is soluble in water. Memantine Tablets are available for oral administration as capsule-shaped, film-coated tablets containing 5 mg and 10 mg of memantine hydrochloride. The tablets also contain the following inactive ingredients: microcrystalline cellulose, croscarmellose sodium, colloidal silicon dioxide, talc and magnesium stearate. In addition the following inactive ingredients are also present as components of the film coat: polyvinyl alcohol, polyethylene glycol 4000/macrogol, titanium dioxide, talc, FD & C yellow #6/sunset yellow FCF aluminum lake (5 mg tablets), and polyvinyl alcohol, polyethylene glycol 4000/macrogol, titanium dioxide, talc and iron oxide black (10 mg tablets). USP Assay test pending. memantine_structure

Metoprolol tartrate and hydrochlorothiazide tablets, USP has the antihypertensive effect of metoprolol tartrate, a beta adrenoreceptor blocker, and hydrochlorothiazide, a thiazide diruetic. It is available as tablets for oral administration. The 50/25 tablets contain 50 mg of metoprolol tartrate USP and 25 mg of hydrochlorothiazide USP and the 100/25 tablets contain 100 mg of metoprolol tartrate USP and 25 mg of hydrochlorothiazide USP. Metoprolol tartrate USP is (±)-1- (Isopropylamino)-3-[ p -(2-methoxyethyl)phenoxy]-2-propanol L-(+)-tartrate (2:1) salt, and its structural formula is Metoprolol tartrate USP is a white, crystalline powder. It is very soluble in water; freely soluble in methylene chloride, in chloroform, and in ethanol (96 percent); slightly soluble in acetone; and insoluble in ether. Its molecular weight is 684.82. Hydrochlorothiazide is 6-chloro-3, 4-dihydro-2 H -1,2,4-benzothiadiazine-7- sulfonamide 1,1- dioxide, and its structural formula is Hydrochlorothiazide USP is a white, or practically white, practically odorless, crystalline powder. It is freely soluble in sodium hydroxide solution, in n -butylamine, and in dimethylformamide; sparingly soluble in methanol; slightly soluble in water; and insoluble in ether, in chloroform, and in dilute mineral acids. Its molecular weight is 297.73. Inactive Ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, sodium starch glycolate, povidone, lactose monohydrate, powdered cellulose. Image hctz

The active ingredients of naproxen and esomeprazole magnesium delayed-release tablets are naproxen, USP which is an NSAID and esomeprazole magnesium, USP which is a Proton Pump Inhibitor (PPI). Naproxen and esomeprazole magnesium delayed-release tablets are combination of a nonsteroidal anti-inflammatory drug and a PPI available as an oval, yellow, multi-layer, delayed-release tablet combining an enteric-coated naproxen core and an immediate-release esomeprazole magnesium layer surrounding the core. Each strength contains either 375 mg of naproxen, USP and 20 mg of esomeprazole (equivalent to 21.75 mg esomeprazole magnesium dihydrate) or 500 mg of naproxen and 20 mg of esomeprazole (equivalent to 21.75 mg esomeprazole magnesium dihydrate) for oral administration. The inactive ingredients are microcrystalline cellulose, croscarmellose sodium, povidone, colloidal silicon dioxide, magnesium stearate, methacrylic acid and ethyl acrylate copolymer, talc, triethy citrate, hypromellose, macrogol, sodium lauryl sulfate, magnesium oxide, polyethylene glycol, ferric oxide yellow. The imprinting ink contains shellac glaze, black iron oxide, propylene glycol, ammonium hydroxide. The chemical name for naproxen, USP is (S)-2-(6-Methoxy-naphth-2-yl) propionic acid. Naproxen, USP has the following structure: Naproxen, USP has a molecular weight of 230.26 and a molecular formula of C 14 H 14 O 3 . Naproxen, USP is an odorless, white to off-white crystalline powder. It is practically insoluble in water and soluble in ethanol and methanol. The octanol/water partition coefficient of naproxen is 3.18. The chemical name for esomeprazole is Magnesium bis [5-methoxy-2-[(S)-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphinyl]-1Hbenzimidazol-1- ide]dihydrate. Esomeprazole is the S-isomer of omeprazole, which is a mixture of the S-and R-isomers. Its molecular formula is C 34 H 36 N 6 O 6 S 2 Mg.2H 2 O with molecular weight of 749.15 as a dihydrate and 713.15 on an anhydrous basis. The structural formula is: The magnesium salt is a white to slightly colored powder. It contains 2 moles of water of solvation and is slightly soluble in methanol, practically insoluble in water and heptane. The stability of esomeprazole magnesium, USP is a function of pH; it rapidly degrades in acidic media, but it has acceptable stability under alkaline conditions. At pH 6.8 (buffer), the half-life of the magnesium salt is about 19 hours at 25°C and about 8 hours at 37°C. naproxen-structure esomeprazole-structure

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, 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 for oral suspension are supplied as immediate-release unit-dose packets as powder for oral suspension. Packets of powder for oral suspension contain either 40 mg or 20 mg of omeprazole USP and 1,680 mg of sodium bicarbonate USP with the following excipients: xylitol, sucralose, xanthan gum, colloidal silicon dioxide and flavorings. 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. omeprazole_sodium_bicarbonate_str

Omeprazole and Sodium Bicarbonate capsules are 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 155ºC. 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 capsules are supplied as immediate-release capsules. Each capsule contains either 40 mg or 20 mg of omeprazole USP and 1,100 mg of sodium bicarbonate USP with the following excipients: croscarmellose sodium and sodium stearyl fumarate. The black imprinting ink contains black iron oxide, propylene glycol, shellac, and potassium hydroxide. Omeprazole and Sodium Bicarbonate capsules are immediate-release formulations that contain sodium bicarbonate which raises the gastric pH and thus protects omeprazole from acid degradation. STR

Oseltamivir phosphate, USP an influenza neuraminidase inhibitor (NAI), is available as: A powder for oral suspension, which when constituted with water as directed contains 6 mg per mL oseltamivir base. In addition to the active ingredient, the powder for oral suspension contains trisodium citrate, saccharin sodium, sodium benzoate, sorbitol, titanium dioxide, tutti-frutti flavoring, and xanthan gum. Oseltamivir phosphate, USP is a white to off-white powder with the chemical name (3R,4R,5S)-4-acetylamino-5-amino-3(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid, ethyl ester, phosphate (1:1). The chemical formula is C 16 H 28 N 2 O 4 (free base). The molecular weight is 312.4 for oseltamivir free base and 410.4 for oseltamivir phosphate salt. The structural formula is as follows: structure

Oxcarbazepine is an antiepileptic drug (AED). Oxcarbazepine extended-release tablets contain oxcarbazepine for once-a-day oral administration. Oxcarbazepine is 10,11-Dihydro-10-oxo-5H-dibenz[b,f]-azepine-5-carboxamide, and its structural formula is Oxcarbazepine is white or faintly orange, crystalline powder. Oxcarbazepine USP is sparingly soluble in chloroform (30 g/L to 100 g/L). In aqueous media over pH range 1 to 8, oxcarbazepine is practically insoluble and its solubility is 40 mg/L (0.04 g/L) at pH 7.0, 25°C. The molecular formula is C 15 H 12 N 2 O 2 and its molecular weight is 252.27. Oxcarbazepine extended-release tablets contain the following inactive ingredients: colloidal silicon dioxide, hypromellose, hydroxypropyl cellulose, yellow iron oxide, red iron oxide (300 mg, 600 mg tablets only), black iron oxide (150 mg, 300 mg tablets only), magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, povidone, sodium lauryl sulfate, talc, and titanium dioxide. structure

Paliperidone extended-release tablets contain paliperidone, an atypical antipsychotic belonging to the chemical class of benzisoxazole derivatives. Paliperidone extended-release tablets contain a racemic mixture of (+)- and (-)- paliperidone. The chemical name is (±)-3-[2-[ 4-(6-fluoro-1 ,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one. Its molecular formula is C 23 H 27 FN 4 O 3 and its molecular weight is 426.48. The structural formula is: Paliperidone is sparingly soluble in 0.1 N HCl and in methylene chloride practically insoluble in water, in 0.1N NaOH, and in hexane and slightly soluble in N,N-dimethyl formamide and in tetrahydrofuran. Paliperidone extended-release tablets are intended for oral administration and are available in 1.5 mg (brown), 3 mg (white to off-white), 6 mg (yellow), and 9 mg (pink) strengths. Paliperidone extended-release tablets utilize OROS® osmotic drug-release technology. Inactive ingredients are polyethylene oxide, microcrystalline cellulose, povidone, butylated hydroxytoluene, colloidal silicone dioxide, magnesium stearate, sodium chloride, ferric oxide, hydroxypropyl cellulose, cellulose acetate, polyethylene glycol. Film coating contains hypromellose, titanium dioxide, and for 1.5 mg polyethylene glycol/macrogol MW 400, iron oxide yellow, iron oxide red. For 3 mg polyethylene glycol/macrogol MW 400. for 6 mg polyethylene glycol/macrogol 8000, talc, iron oxide yellow, black iron oxide. for 9 mg polyethylene glycol/macrogol MW 400, iron oxide yellow, iron oxide red. For imprinting, ink contains shellac glaze, propylene glycol and black iron oxide. Delivery System Components and Performance Paliperidone extended-release tablets use osmotic pressure to deliver paliperidone at a controlled rate. The delivery system, which resembles a round-shaped tablet in appearance, consists of an osmotically active bilayer core surrounded by a subcoat and semipermeable membrane. The bilayer core is composed of one drug layer containing the drug and excipients, and a push layer containing osmotically active components. There is one precision laser-drilled orifice on the drug-layer dome of the tablet. Each tablet strength has a different colored water-dispersible overcoat and print markings. In an aqueous environment, such as the gastrointestinal tract, the water-dispersible color overcoat erodes quickly. Water then enters the tablet through the semipermeable membrane that controls the rate at which water enters the tablet core, which, in turn, determines the rate of drug delivery. The hydrophilic polymers of the core hydrate and swell, creating a gel containing paliperidone that is then pushed out through the tablet orifices. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the stool as a tablet shell, along with insoluble core components. structure

Prochlorperazine, USP is a phenothiazine derivative, present in prochlorperazine tablets as the maleate. Prochlorperazine maleate is designated chemically as 2-chloro-10-[3-(4- methylpiperazin-1 -yl)propyl] phenothiazine maleate (1:2) [molecular weight 606.09] and has the following structure Prochlorperazine Maleate is classified as an anti-emetic and antipsychotic agent. Prochlorperazine maleate is white or pale yellow, practically odorless crystalline powder. It is practically insoluble in water, and in alcohol (96% ethanol). Each tablet, for oral administration contains prochlorperazine maleate equivalent to 5 mg or 10 mg of prochlorperazine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, microcrystalline cellulose, pregelatinized starch, stearic acid, magnesium stearate. Film coating: Opadry 13F520021 yellow contains hydroxypropyl methylcellulose 2910/hypromellose, D&C yellow#10 aluminium lake, macrogol/polyethylene glycol, titanium dioxide, polysorbate 80, FD&C blue#2/ indigo carmine aluminium lake and FD&C yellow#6/ sunset yellow FCF aluminium lake. Prochlorperazine maleate tablets meet USP Dissolution Test 2. structure

Prucalopride tablets for oral use contain prucalopride succinate, a dihydrobenzofurancarboxamide that is a serotonin type 4 (5-HT 4 ) receptor agonist. The IUPAC name is: 4-Amino-5-chloro-N-[1-(3-methoxypropyl) piperidin-4-yl]-2,3-dihydro-1-benzofuran-7-carboxamide succinate. The molecular formula is C 22 H 32 CIN 3 O 7 and the molecular weight is 485.96. The structural formula is: Prucalopride succinate is a white to almost white powder. It is soluble in dimethylacetamide, dimethyl formamide and sparingly soluble in methanol. Each 1-mg film-coated tablet of prucalopride contains 1 mg of prucalopride (equivalent to 1.32 mg prucalopride succinate), and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, colloidal silicon dioxide and magnesium stearate. The coating for the 1-mg tablet contains Opadry II 33G28707 White which contains hypromellose, titanium dioxide, lactose monohydrate, macrogol and triacetin. Each 2-mg film-coated tablet of prucalopride contains 2 mg of prucalopride (equivalent to 2.64 mg prucalopride succinate), and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, colloidal silicon dioxide and magnesium stearate. The coating for the 2-mg tablet contains Opadry II 33G34847 Pink which contains hypromellose, titanium dioxide, lactose monohydrate, macrogol, triacetin, iron oxide red, FD & C Blue #2/ indigo carmine aluminium lake and iron oxide yellow. structure

Ranitidine hydrochloride (HCl) USP, is a histamine H 2 -receptor antagonist. Chemically it is N-[2-[[[5-[(Dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl]-N’-methyl-2-nitro-1,1-ethenediamine,hydrochloride. It has the following structure: The empirical formula is C 13 H 22 N 4 O 3 S • HCl, representing a molecular weight of 350.8. Ranitidine HCl is a white to pale yellow crystalline, practically odorless powder. Very soluble in water, sparingly soluble in alcohol. Each capsule, for oral administration contains 168 mg or 336 mg of ranitidine hydrochloride equivalent to 150 mg and 300 mg of ranitidine, respectively. Inactive ingredients: Silicon dioxide, corn starch, magnesium stearate, and sodium starch glycolate Type A corn. Each hard-gelatin capsule contains gelatin, titanium dioxide, FD&C Blue no. 1, FD&C Red no. 40, and FD&C Yellow no. 6. Imprinting ink contains: shellac, propylene glycol, ferrosoferric oxide and potassium hydroxide. structure

Ranolazine extended-release tablets are 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; sparingly soluble in acetonitrile; slightly soluble in isopropyl alcohol and very slightly soluble in water. Ranolazine extended-release tablets contain 500 mg or 1000 mg of ranolazine and the following inactive ingredients: Hypromellose, magnesium stearate, methacrylic acid and ethyl acrylate copolymer (sodium lauryl sulfate and polysorbate 80), microcrystalline cellulose, polyethylene glycol and sodium hydroxide. The color coating contains titanium dioxide, polyvinyl alcohol, talc, hypromellose, polyethylene glycol, Iron Oxide Yellow, and Iron Oxide Red. structure

Risperidone tablets, USP contain risperidone USP, 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 tablets, USP are for oral administration and available in 0.25 mg (orange), 0.5 mg (orange), 1 mg (white), 2 mg (yellow), 3 mg (orange), and 4 mg (brown) strengths. Risperidone tablets contain the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, propylene glycol (except 1 mg), sodium lauryl sulphate, sodium starch glycolate and polyethylene glycol (1 mg). Tablets of 0.25 mg, 0.5 mg, 2 mg, 3 mg, and 4 mg also contain talc and titanium dioxide. 0.25 mg, 0.5 mg, and 3 mg tablets contain FD&C Yellow # 6 aluminum lake, the 2 mg tablets contain yellow iron oxide; the 4 mg tablets contain iron oxide red. structure

Silodosin capsules, a selective antagonist of alpha-1 adrenoreceptors. The chemical name of silodosin is 1-(3-Hydroxypropyl)-5-[(2R)-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 acetic acid and in absolute alcohol, and insoluble in water. Each silodosin 8 mg capsule for oral administration contains 8 mg silodosin, and the following inactive ingredients: mannitol, pregelatinized starch, sodium lauryl sulfate and sodium stearyl fumarate. The size #1 hard gelatin capsules contain FD & C Blue 1, FD & C Red 3, FD & C Red 40, gelatin and titanium dioxide. The capsules are printed with edible ink containing shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide and potassium hydroxide. Each silodosin 4 mg capsule for oral administration contains 4 mg silodosin, and the following inactive ingredients: mannitol, pregelatinized starch, sodium lauryl sulfate and sodium stearyl fumarate. The size #3 hard gelatin capsules contain gelatin and titanium dioxide. The capsules are printed with edible ink containing shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide and potassium hydroxide. structure

Solifenacin succinate tablets are 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 empirical 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 crystal 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: lactose monohydrate, corn starch, hypromellose, magnesium stearate, talc, polyethylene glycol and titanium dioxide with yellow ferric oxide (5 mg solifenacin succinate tablets) or red ferric oxide (10 mg solifenacin succinate tablets). structure