mylan pharmaceuticals inc. - Medication Listings

Misoprostol oral tablets contain either 100 mcg or 200 mcg of misoprostol, a synthetic prostaglandin E 1 analog. Misoprostol contains approximately equal amounts of the two diastereomers presented below with their enantiomers indicated by (±): C 22 H 38 O 5 M.W. = 382.5 (±) methyl 11α, 16-dihydroxy-16-methyl-9-oxoprost-13E-en-1-oate Misoprostol is a water-soluble, viscous liquid. Inactive ingredients of tablets are hydrogenated castor oil, hypromellose, microcrystalline cellulose, and sodium starch glycolate. Chemical Structure

Mycophenolate mofetil is an antimetabolite immunosuppressant. It is the 2-morpholinoethyl ester of mycophenolic acid (MPA), an immunosuppressive agent; inosine monophosphate dehydrogenase (IMPDH) inhibitor. The chemical name for mycophenolate mofetil (MMF) is 2-Morpholinoethyl ( E )-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-5-phthalanyl)-4-methyl-4-hexenoate. It has an empirical formula of C 23 H 31 NO 7 , a molecular weight of 433.50, and the following structural formula: Mycophenolate mofetil, USP is a white or almost white crystalline powder. It is practically insoluble in water (43 µg/mL at pH 7.4); the solubility increases in acidic medium (4.27 mg/mL at pH 3.6). It is freely soluble in acetone, soluble in methanol, and sparingly soluble in ethanol. The apparent partition coefficient in 1-octanol/water (pH 7.4) buffer solution is 238. The pKa values for MMF are 5.6 for the morpholino group and 8.5 for the phenolic group. Mycophenolate mofetil is available for oral administration as capsules containing 250 mg of mycophenolate mofetil and tablets containing 500 mg of mycophenolate mofetil. Inactive ingredients in mycophenolate mofetil 250 mg capsules include black iron oxide, colloidal silicon dioxide, croscarmellose sodium, FD&C Blue No. 2, gelatin, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn), red iron oxide, sodium lauryl sulfate, titanium dioxide and yellow iron oxide. In addition, the imprinting ink contains the following: ammonium hydroxide, black iron oxide, propylene glycol and shellac glaze. Inactive ingredients in mycophenolate mofetil 500 mg tablets include colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, povidone, pregelatinized starch (corn), red iron oxide, sodium lauryl sulfate, talc, titanium dioxide and yellow iron oxide. Mycophenolate Mofetil Structural Formula

Nevirapine is a non-nucleoside reverse transcriptase inhibitor (NNRTI) with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Nevirapine is structurally a member of the dipyridodiazepinone chemical class of compounds. The chemical name of nevirapine is 11-Cyclopropyl-5,11-dihydro-4-methyl-6 H -dipyrido[3,2- b :2’,3’- e ][1, 4]diazepin-6-one. Nevirapine, USP (anhydrous) is a white to off-white, odorless to nearly odorless crystalline powder with the molecular weight of 266.30 and the molecular formula C 15 H 14 N 4 O. Nevirapine has the following structural formula: Nevirapine extended-release tablets, USP are for oral administration. Each tablet contains 400 mg of nevirapine and the inactive ingredients hypromellose, lactose monohydrate and sodium stearyl fumarate. Nevirapine Structural Formula

Nevirapine is a non-nucleoside reverse transcriptase inhibitor (NNRTI) with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Nevirapine is structurally a member of the dipyridodiazepinone chemical class of compounds. The chemical name of nevirapine is 11-cyclopropyl-5,11-dihydro-4-methyl-6H-dipyrido [3,2-b:2',3'-e][1,4] diazepin-6-one. Nevirapine, USP is a white to off-white, odorless to nearly odorless, crystalline powder with the molecular weight of 266.30 and the molecular formula C 15 H 14 N 4 O. Nevirapine has the following structural formula: Nevirapine tablets, USP are for oral administration. Each tablet contains 200 mg of nevirapine and the inactive ingredients colloidal silicon dioxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate (potato). Nevirapine Structural Formula

Nisoldipine is an extended-release tablet dosage form of the dihydropyridine calcium channel blocker nisoldipine. Nisoldipine is (±)-Isobutyl methyl 1,4-dihydro-2,6-dimethyl-4-( o -nitrophenyl)-3,5-pyridinedicarboxylate, C 20 H 24 N 2 O 6 , and has the structural formula: Nisoldipine is a yellow crystalline powder, practically insoluble in water, but soluble in acetone, ethanol and methanol. It has a molecular weight of 388.4. Nisoldipine extended-release tablets are film-coated monolithic tablets containing a hydrogel which provides for the controlled release of the drug. Nisoldipine extended-release tablets contain either 8.5 mg, 17 mg, 25.5 mg or 34 mg of nisoldipine for once-a-day oral administration. Inactive ingredients include: colloidal silicon dioxide, hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, polydextrose, polyethylene glycol, sodium lauryl sulfate, titanium dioxide and triacetin. In addition, the following product specific coloring agents are used: The 8.5 mg tablets also contain FD&C Blue No. 2 Aluminum Lake and FD&C Yellow No. 6 Aluminum Lake. The 17 mg tablets also contain D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake and FD&C Yellow No. 6 Aluminum Lake. The 25.5 mg tablets also contain red iron oxide and yellow iron oxide. The 34 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake. Nisoldipine Structural Formula

Nisoldipine is an extended-release tablet dosage form of the dihydropyridine calcium channel blocker nisoldipine. Nisoldipine is (±)-Isobutyl methyl 1,4-dihydro-2,6-dimethyl-4-( o -nitrophenyl)-3,5-pyridinedicarboxylate, C 20 H 24 N 2 O 6 , and has the structural formula: Nisoldipine is a yellow crystalline powder, practically insoluble in water but soluble in acetone, ethanol and methanol. It has a molecular weight of 388.4. Nisoldipine extended-release tablets contain 20 mg, 30 mg or 40 mg of nisoldipine for once-a-day oral administration. Inactive ingredients include: colloidal silicon dioxide, hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, polydextrose, polyethylene glycol and titanium dioxide. The 20 mg tablets also contain FD&C Blue No. 2 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake and triacetin. The 30 mg tablets also contain red iron oxide, triacetin and yellow iron oxide. The 40 mg tablets also contain D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake and FD&C Yellow No. 6 Aluminum Lake. Nisoldipine Structural Formula

Nitroglycerin is 1,2,3-propanetriol, trinitrate, an organic nitrate whose structural formula is: and whose molecular weight is 227.09. The organic nitrates are vasodilators, active on both arteries and veins. The nitroglycerin transdermal system is a flat unit designed to provide continuous controlled release of nitroglycerin through intact skin. The rate of release of nitroglycerin is linearly dependent upon the area of the applied system; each cm 2 of applied system delivers approximately 0.026 mg of nitroglycerin per hour. Thus, the 4 cm 2 , 8 cm 2 , 16 cm 2 and 24 cm 2 systems deliver approximately 0.1 mg, 0.2 mg, 0.4 mg and 0.6 mg of nitroglycerin per hour, respectively. The remainder of the nitroglycerin in each system serves as a reservoir and is not delivered in normal use. After 12 hours, for example, each system has delivered approximately 11% of its original content of nitroglycerin. The nitroglycerin transdermal system comprises two layers as shown below. Proceeding from the visible surface towards the surface attached to the skin, these layers are: 1) a polyolefin film backing layer that is impermeable to nitroglycerin and is printed with the name of the drug and strength; 2) nitroglycerin in an acrylic pressure sensitive adhesive. Prior to use, a peelable polyester release liner, which is coated on one side with silicone, is removed from the adhesive surface. Each unit is sealed in a foil-lined pouch. Cross section of the system: Nitroglycerin Structural Formula Patch Cross Section

Nitroglycerin sublingual tablets are stabilized sublingual compressed tablets that contain 0.3 mg, 0.4 mg, or 0.6 mg nitroglycerin; as well as lactose monohydrate, NF; glyceryl monostearate, NF; pregelatinized starch, NF; calcium stearate, NF powder; and silicon dioxide, colloidal, NF. Nitroglycerin, an organic nitrate, is a vasodilating agent. The chemical name for nitroglycerin is 1, 2, 3 propanetriol trinitrate and the chemical structure is: Molecular weight: 227.09 Nitroglycerin Structural Formula

Each peach norethindrone tablet provides a continuous oral contraceptive regimen of 0.35 mg norethindrone daily, and the inactive ingredients include corn starch, FD&C Yellow No. 6 Aluminum Lake, lactose monohydrate, magnesium stearate, and povidone. The chemical name for norethindrone is 17-Hydroxy-19-Nor-17-alpha-pregn-4-en-20-yn-3-one. The structural formula follows: Therapeutic class = oral contraceptive. Structure

Norethindrone Tablets, USP Each tablet contains 0.35 mg norethindrone. Inactive ingredients include corn starch, D&C Yellow No. 10, ethyl cellulose, lactose anhydrous, magnesium stearate, microcrystalline cellulose, povidone, sodium starch glycolate and talc. Meets USP Dissolution Test 2 structure

Norethindrone Acetate and Ethinyl Estradiol Tablets, USP and Ferrous Fumarate Tablets are a progestogen-estrogen combination. Norethindrone Acetate and Ethinyl Estradiol Tablets USP, 1 mg/0.02 mg and Ferrous Fumarate Tablets, 75 mg provide a continuous dosage regimen consisting of 21 oral contraceptive tablets and seven ferrous fumarate tablets. The ferrous fumarate tablets are present to facilitate ease of drug administration via a 28-day regimen, are non-hormonal, and do not serve any therapeutic purpose. Each white to off-white tablet contains norethindrone acetate (19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-, (17α)), 1 mg; ethinyl estradiol (19-Norpregna-1,3,5(10)-trien-20-yne-3, 17-diol, (17α)-), 0.02 mg. Also contains compressible sugar, croscarmellose sodium, dl -α-tocopherol, lactose anhydrous, lactose monohydrate, magnesium stearate, povidone K-25, sodium lauryl sulphate. The structural formulas are as follows: Each brown placebo tablet contains colloidal silicon dioxide, croscarmellose sodium, ferrous fumarate, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone K-90. The ferrous fumarate tablets do not serve any therapeutic purpose. Structural Formula

Norethindrone Acetate and Ethinyl Estradiol Tablets, USP and Ferrous Fumarate Tablets are a progestogen-estrogen combination. Norethindrone Acetate and Ethinyl Estradiol Tablets USP, 1.5 mg/0.03 mg and Ferrous Fumarate Tablets, 75 mg provide a continuous dosage regimen consisting of 21 oral contraceptive tablets and seven ferrous fumarate tablets. The ferrous fumarate tablets are present to facilitate ease of drug administration via a 28-day regimen, are non-hormonal, and do not serve any therapeutic purpose. Each blue tablet contains norethindrone acetate (19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-, (17α)), 1.5 mg; ethinyl estradiol (19-Norpregna-1,3,5(10)-trien-20-yne-3, 17-diol, (17α)-), 0.03 mg. Also contains compressible sugar, croscarmellose sodium, dl -α-tocopherol, FD & C Blue No. 1 Aluminum Lake, lactose anhydrous, lactose monohydrate, magnesium stearate, povidone K-25, sodium lauryl sulphate. The structural formulas are as follows: Each brown tablet contains colloidal silicon dioxide, croscarmellose sodium, ferrous fumarate, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone K-90. Structural Formula

Norethindrone Acetate and Ethinyl Estradiol Tablets, USP are a progestogen-estrogen combination. Each blue tablet contains norethindrone acetate (19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-, (17α)), 1.5 mg; ethinyl estradiol (19-Norpregna-1,3,5(10)-trien-20-yne-3, 17-diol, (17α)-), 0.03 mg. Also contains lactose anhydrous, dl -α-tocopherol, compressible sugar, croscarmellose sodium, FD & C Blue No. 1 Aluminum Lake, lactose monohydrate, magnesium stearate, povidone K-25, sodium lauryl sulphate. The structural formulas are as follows: Ethinyl Estradiol and Norethindrone Acetate Structural Formulas

Norethindrone Acetate and Ethinyl Estradiol Tablets, USP are a progestogen-estrogen combination. Each white to off-white tablet contains norethindrone acetate (19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-, (17α) ), 1 mg; ethinyl estradiol (19-Norpregna-1,3,5(10)-trien-20-yne-3, 17-diol, (17α)-) , 0.02 mg. Also contains lactose anhydrous, dl -α-tocopherol, compressible sugar, croscarmellose sodium, lactose monohydrate, magnesium stearate, povidone K-25, sodium lauryl sulphate. The structural formulas are as follows: Ethinyl Estradiol and Norethindrone Acetate Structural Formulas

Norethindrone acetate and ethinyl estradiol tablets are graduated estrophasic combined oral contraceptive providing estrogen in a graduated sequence over a 21-day period with a constant dose of progestogen. Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets provide for a continuous dosage regimen consisting of 21 oral contraceptive tablets and seven ferrous fumarate tablets. The ferrous fumarate tablets are present to facilitate ease of drug administration via a 28-day regimen, are non-hormonal, and do not serve any therapeutic purpose. Each white to off white tablet contains 1 mg norethindrone acetate [(17 alpha)- 17-(acetyloxy)-19-norpregna-4-en-20-yn-3-one] and 20 mcg ethinyl estradiol [(17 alpha)- 19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol]; each light purple tablet contains 1 mg norethindrone acetate and 30 mcg ethinyl estradiol; and each purple tablet contains 1 mg norethindrone acetate, 35 mcg ethinyl estradiol. Norethindrone acetate and ethinyl estradiol tablets (1 mg and 20 mcg) also contain: Lactose anhydrous, lactose monohydrate, povidone K-25, dl-α-tocopherol, magnesium stearate, microcrystalline cellulose, croscarmellose sodium. Norethindrone acetate and ethinyl estradiol tablets (1 mg and 30 mcg) also contain: Lactose anhydrous, lactose monohydrate, povidone K-25, dl-α-tocopherol, magnesium stearate, microcrystalline cellulose, croscarmellose sodium, aluminium lake of FD and C Blue No. 1, aluminium lake of FD and C Blue No. 2, caramine. Norethindrone acetate and ethinyl estradiol tablets (1 mg and 35 mcg) also contain: Lactose anhydrous, lactose monohydrate, povidone K-25, dl-α-tocopherol, magnesium stearate, microcrystalline cellulose, croscarmellose sodium, aluminium lake of FD and C Blue No. 1, aluminium lake of FD and C Blue No. 2, caramine. The structural formulas are as follows: Each brown tablet contains ferrous fumarate, microcrystalline cellulose, lactose monohydrate, polyvinyl pyrrolidone K-90, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate. Each norethindrone acetate and ethinyl estradiol tablet and ferrous fumarate tablet blister contains five white to off white tablets, seven light purple tablets, nine purple tablets, and seven brown tablets. These tablets are to be taken in the following order: one white to off white each day for five days, then light purple tablet each day for seven days, followed by one purple tablet each day for nine days, and then one brown tablet each day for seven days. Structural Formula

Norethindrone and ethinyl estradiol tablets, USP (chewable) and ferrous fumarate tablets (chewable) are a combinational contraceptive containing the progestational compound norethindrone and the estrogenic compound ethinyl estradiol. The packaging includes 21 yellow tablets composed of norethindrone and ethinyl estradiol followed by 7 brown ferrous fumarate (placebo) tablets. The chemical name for norethindrone is 17-hydroxy-19-nor-17α-pregn-4-en-20-yn-3-one and for ethinyl estradiol the chemical name is 19-nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17-diol. The structural formulas are: The active yellow norethindrone and ethinyl estradiol tablets (chewable) contain 0.4 mg norethindrone and 0.035 mg ethinyl estradiol, and the following inactive ingredients: colloidal silicon dioxide, dibasic calcium phosphate, D & C Yellow No.10 Aluminium Lake, lactose anhydrous, lactose monohydrate, magnesium stearate, maltodextrin, povidone K-30, sodium starch glycolate, spearmint flavor and sucralose. The brown tablets contain ferrous fumarate, colloidal silicon dioxide, crosscarmellose sodium, lactose monohydrate, magnesium stereate, microcrystalline cellulose and povidone K-90.The ferrous fumarate tablets do not serve any therapeutic purpose. Ferrous fumarate tablets are not USP for dissolution and assay. USP Dissolution Test is pending. Norethindrone and Ethinyl Estradiol Structural Formulas

Paroxetine tablets contain paroxetine hydrochloride, an SSRI. It is the hydrochloride salt of a phenylpiperidine compound identified chemically as (3 S - trans )-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4-fluorophenyl)-piperidine hydrochloride hemihydrate and has the empirical formula of C 19 H 20 FNO 3 •HCl•1/2H 2 O. The molecular weight is 374.8 (329.4 as free base). The structural formula of paroxetine hydrochloride is: Paroxetine hydrochloride, USP (hemihydrate) is an odorless, white or almost white crystalline powder, having a melting point range of 129° to 131°C and a solubility of 5.4 mg/mL in water. Paroxetine Tablets Paroxetine tablets are for oral administration. Each film-coated tablet contains 10 mg, 20 mg, 30 mg or 40 mg paroxetine equivalent to 11.38 mg, 22.76 mg, 34.14 mg or 45.52 mg of paroxetine hydrochloride hemihydrate, respectively. Inactive ingredients consist of dibasic calcium phosphate dihydrate, FD&C Blue No. 1 Aluminum Lake, hydroxypropyl cellulose, hypromellose, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, sodium lauryl sulfate, sodium starch glycolate (potato), titanium dioxide and triacetin. Paroxetine Hydrochloride Meets USP Organic Impurities Test 1. Paroxetine Structural Formula

Penciclovir cream 1% contains penciclovir, an antiviral agent active against herpes viruses. Penciclovir cream is available for topical administration as a 1% white cream. Each gram of penciclovir cream contains 10 mg of penciclovir and the following inactive ingredients: cetostearyl alcohol, mineral oil, polyoxyl 20 cetostearyl ether, propylene glycol, purified water and white petrolatum. Chemically, penciclovir is known as 9-[4-hydroxy-3-(hydroxymethyl)butyl] guanine. Its molecular formula is C 10 H 15 N 5 O 3 ; its molecular weight is 253.26. It is a synthetic acyclic guanine derivative and has the following structure: Figure 1: Structural Formula of Penciclovir Penciclovir is a white to pale yellow solid. At 20°C it has a solubility of 0.2 mg/mL in methanol, 1.3 mg/mL in propylene glycol, and 1.7 mg/mL in water. In aqueous buffer (pH 2) the solubility is 10.0 mg/mL. Penciclovir is not hygroscopic. Its partition coefficient in n-octanol/water at pH 7.5 is 0.024 (logP = -1.62). Figure 1: Structural Formula of Penciclovir

Perphenazine and amitriptyline hydrochloride, a broad spectrum psychotherapeutic agent for the management of outpatients and hospitalized patients with psychoses or neuroses characterized by mixtures of anxiety or agitation with symptoms of depression, is a combination of perphenazine and amitriptyline hydrochloride. Since such mixed syndromes can occur in patients with various degrees of intensity of mental illness, perphenazine and amitriptyline hydrochloride tablets are provided in multiple combinations to afford dosage flexibility for optimum management. Perphenazine is a phenothiazine derivative. The formula is 4-[3-(2-chloro-10 H -phenothiazin-10yl) propyl]-piperazineethanol. Perphenazine, USP is a white, odorless, bitter tasting powder that is insoluble in water. The molecular weight is 403.97. Its structural formula is: Amitriptyline is a dibenzocycloheptadiene derivative. The formula is 10,11-dihydro- N , N -dimethyl-5 H -dibenzo[a,d]cycloheptene-∆ 5 ,γ -propylamine hydrochloride. Amitriptyline hydrochloride, USP is a white, odorless, crystalline compound which is freely soluble in water. The molecular weight is 313.87. Its structural formula is: Each tablet for oral administration contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, pregelatinized starch (corn), sodium lauryl sulfate and titanium dioxide. The following additional product specific inactive ingredients are employed: 2 mg/10 mg - hydroxypropyl cellulose 2 mg/25 mg - hydroxypropyl cellulose 4 mg/10 mg - polysorbate 80 4 mg/25 mg - hydroxypropyl cellulose 4 mg/50 mg - hydroxypropyl cellulose The following product specific coloring agents are employed: 2 mg/10 mg - calcium sulfate, talc 2 mg/25 mg - D&C Red No. 7 Calcium Lake, FD&C Blue No. 1 Aluminum Lake 4 mg/10 mg - FD&C Blue No. 1 Aluminum Lake 4 mg/25 mg - FD&C Yellow No. 6 Aluminum Lake 4 mg/50 mg - D&C Red No. 7 Calcium Lake, FD&C Blue No. 1 Aluminum Lake Perphenazine Structural Formula Amitriptyline Structural Formula

Phenelzine sulfate is a potent inhibitor of monoamine oxidase (MAO). Phenelzine sulfate is a hydrazine derivative. It has a molecular weight of 234.27 and is chemically described as C 8 H 12 N 2 • H 2 SO 4 . Its chemical structure is shown below: Each phenelzine sulfate film-coated tablet for oral administration contains phenelzine sulfate equivalent to 15 mg of phenelzine base and the following inactive ingredients: mannitol, USP; croscarmellose sodium, NF; povidone, USP; edetate disodium, USP; magnesium stearate, NF; isopropyl alcohol, USP; purified water, USP; opadry orange Y30-13242A. Chemical Structure

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-Diphenylhydantoin sodium salt, having the following structural formula: Each 200 mg or 300 mg PHENYTEK ® capsule (extended phenytoin sodium capsule, USP) for oral administration contains 200 mg or 300 mg phenytoin sodium, USP. Also contains colloidal silicon dioxide, FD&C Blue No. 1, gelatin, hydroxyethyl cellulose, magnesium oxide, magnesium stearate, microcrystalline cellulose, povidone, sodium lauryl sulfate and titanium dioxide. In addition, the imprinting ink contains black iron oxide, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, propylene glycol and shellac glaze. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to prompt phenytoin sodium capsules with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 3. Phenytoin Structural Formula

Phenytoin is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 5 mL of the oral suspension contains 125 mg of phenytoin, USP; alcohol, USP (maximum content not greater than 0.6 percent); banana flavor; carboxymethylcellulose sodium, USP; citric acid, anhydrous, USP; glycerin, USP; magnesium aluminum silicate, NF; orange oil concentrate; polysorbate 40, NF; purified water, USP; sodium benzoate, NF; sucrose, NF; vanillin, NF; and FD&C yellow No. 6. structural formula

Pitavastatin tablets for oral use are an HMG-CoA reductase inhibitor. The chemical name for pitavastatin is (+)Monocalcium bis [(3R,5S,6E)-7-[2-cyclopropyl- 4-(4- fluorophenyl)-3-quinolyl]-3,5-dihydroxy-6-heptenoate]. The structural formula is: The molecular formula for pitavastatin is (C 25 H 23 FNO 4 ) 2. Ca and the molecular weight is 880.98. Pitavastatin is odorless and occurs as off-white to pale yellow color powder. It is freely soluble in pyridine, chloroform, dilute hydrochloric acid, and tetrahydrofuran, soluble in ethylene glycol, sparingly soluble in octanol, slightly soluble in methanol, very slightly soluble in water or ethanol, and practically insoluble in acetonitrile or diethyl ether. Pitavastatin is hygroscopic and slightly unstable in light. Each film-coated tablet of pitavastatin contains 1 mg, 2 mg, or 4 mg of pitavastatin, which is equivalent to 1.045 mg, 2.090 mg, or 4.180 mg, respectively, of pitavastatin calcium and the following inactive ingredients: hypromellose, lactose monohydrate, low substituted hydroxypropyl cellulose, magnesium oxide, magnesium stearate, polyethylene glycol, polysorbate 80 and titanium dioxide. pitavastatin Structural Formula

Potassium Chloride Extended-Release Tablets, USP are a solid oral dosage form of potassium chloride. Each contains 600 mg or 750 mg of potassium chloride equivalent to 8 mEq or 10 mEq of potassium in a matrix tablet. Potassium Chloride Extended-Release Tablets are an electrolyte replenisher. The chemical name is potassium chloride, and the structural formula is KCl. Potassium chloride, USP is a colorless, elongated, prismatic or cubical crystals, or white granular powder. It is odorless and has a saline taste. Its solutions are neutral to litmus. It is freely soluble in water and insoluble in alcohol. Inactive Ingredients: Ethylcellulose, magnesium stearate, polyethylene glycol, polyvinyl alcohol, red iron oxide, stearic acid, talc, titanium dioxide and yellow iron oxide. Meets USP Assay Sample Preparation 2.

Prasugrel tablets, USP contain prasugrel, a thienopyridine class inhibitor of platelet activation and aggregation mediated by the P2Y 12 ADP receptor. Prasugrel tablets are 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 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 is: Prasugrel hydrochloride, USP is a white to light brown crystalline solid. It is soluble at pH 2, slightly soluble at pH 3 to 4, and practically insoluble at pH 6 to 7.5. It also dissolves freely in methanol and is slightly soluble in 1- and 2-propanol and acetone. It is practically insoluble in diethyl ether and ethyl acetate. Prasugrel tablets are available for oral administration as 5 mg or 10 mg capsule shaped, film-coated, unscored tablets, debossed on each side. Each yellow 5 mg tablet is manufactured with 5.49 mg prasugrel hydrochloride, equivalent to 5 mg prasugrel and each brown 10 mg tablet with 10.98 mg prasugrel hydrochloride, equivalent to 10 mg of prasugrel. Other ingredients include crospovidone, glyceryl dibehenate, hypromellose, lactose monohydrate, mannitol, pregelatinized starch (corn), sucrose stearic acid esters, titanium dioxide, triacetin and yellow iron oxide. The 5 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake. The 10 mg tablets also contain black iron oxide and red iron oxide. Meets USP Dissolution Test 2. Prasugrel Hydrochloride Structural Formula

Prazosin hydrochloride capsules, USP 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: It is a white to tan powder, slightly soluble in water and methanol, very slightly soluble in alcohol, practically insoluble in chloroform and acetone and has a molecular weight of 419.87. Each capsule, for oral use, contains prazosin hydrochloride, USP equivalent (as the polyhydrate) to 1 mg, 2 mg or 5 mg of prazosin. Molecular formula C 19 H 21 N 5 O 4 • HCl Inert ingredients in the formulations are: colloidal silicon dioxide, lactose monohydrate, magnesium stearate and microcrystalline cellulose. The empty gelatin capsules contain black iron oxide, gelatin, red iron oxide, titanium dioxide and yellow iron oxide. In addition, the 1 mg empty gelatin capsules contain D&C Yellow No. 10 and FD&C Green No. 3; the 2 mg empty gelatin capsules contain D&C Red No. 28, D&C Yellow No. 10, FD&C Blue No. 1 and FD&C Red No. 40; and the 5 mg empty gelatin capsules contain FD&C Blue No. 1. The imprinting ink also contains ammonium hydroxide, propylene glycol, shellac glaze, simethicone and titanium dioxide. Prazosin HCl Molecular Formula

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 is a white to off-white, crystalline solid 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 oral solution, 20 mg/mL, is administered orally and is supplied as a clear, colorless solution contained in a 16 fluid ounce white HDPE bottle with a polyethylene-lined closure. The oral solution contains 20 mg/mL of pregabalin, along with artificial strawberry #11545, dibasic sodium phosphate anhydrous, methylparaben, monobasic sodium phosphate anhydrous, propylparaben, purified water, and sucralose as inactive ingredients. Pregabalin Structural Formula

Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2-propanolol hydrochloride. Its molecular and structural formulae are: Propranolol hydrochloride, USP is a stable, white to off-white, crystalline powder which is readily soluble in water and ethanol. Its molecular weight is 295.80. Propranolol hydrochloride tablets, USP are available as 10 mg, 20 mg, 40 mg, 60 mg, or 80 mg tablets for oral administration. The inactive ingredients contained in propranolol hydrochloride tablets are: colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn) and sodium lauryl sulfate. The 10 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake, the 20 mg tablets also contain FD&C Blue No. 1 Aluminum Lake, the 40 mg tablets also contain FD&C Blue No. 1 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake and D&C Yellow No. 10 Aluminum Lake, the 60 mg tablets also contain FD&C Blue No. 1 Aluminum Lake and FD&C Red No. 40 Aluminum Lake and the 80 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake and D&C Yellow No. 10 Aluminum Lake. Structural Formula

PRUDOXIN ® (doxepin hydrochloride) Cream, 5% is a topical cream. Each gram contains: 50 mg of doxepin hydrochloride (equivalent to 44.3 mg of doxepin). Doxepin hydrochloride, USP is one of a class of agents known as dibenzoxepin tricyclic antidepressant compounds. It is an isomeric mixture of N,N-dimethyldibenz[ b,e ]oxepin-Δ 11(6H),γ -propylamine hydrochloride. Doxepin hydrochloride has a molecular formula of C 19 H 21 NO•HCl and a molecular weight of 316. PRUDOXIN ® Cream also contains sorbitol, cetyl alcohol, isopropyl myristate, glyceryl stearate, PEG- 100 stearate, petrolatum, benzyl alcohol, titanium dioxide and purified water. The structural formula of doxepin hydrochloride.

Rifabutin capsules for oral administration contain 150 mg of the rifamycin antimycobacterial agent rifabutin, USP, per capsule, along with the inactive ingredients, microcrystalline cellulose, magnesium stearate, red iron oxide, silica gel, sodium lauryl sulfate, titanium dioxide, and edible white ink. The chemical name for rifabutin is 1',4-didehydro-1-deoxy-1,4-dihydro-5'-(2-methylpropyl)-1-oxorifamycin XIV (Chemical Abstracts Service, 9th Collective Index) or (9 S ,12 E ,14 S ,15 R ,16 S ,17 R ,18 R ,19 R ,20 S ,21 S ,22 E ,24 Z )-6,16,18,20-tetrahydroxy-1'-isobutyl-14-methoxy-7,9,15,17,19,21,25-heptamethyl-spiro [9,4-(epoxypentadeca[1,11,13]trienimino)-2 H -furo[2',3':7,8]naphth[1,2-d] imidazole-2,4'-piperidine]-5,10,26-(3 H ,9 H )-trione-16-acetate. Rifabutin has a molecular formula of C 46 H 62 N 4 O 11 , a molecular weight of 847.02 and the following structure: Rifabutin is a red-violet powder soluble in chloroform and methanol, sparingly soluble in ethanol, and very slightly soluble in water (0.19 mg/mL). Its log P value (the base 10 logarithm of the partition coefficient between n-octanol and water) is 3.2 (n-octanol/water). Chemical Structure

Risedronate Sodium tablets is a pyridinyl bisphosphonate that inhibits osteoclast-mediated bone resorption and modulates bone metabolism. Each Risedronate Sodium tablet for oral administration contains the equivalent of 5, 30, 35, 75, or 150 mg of anhydrous risedronate sodium in the form of the hemi-pentahydrate with small amounts of monohydrate. The empirical 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 fine, white to off-white, odorless, 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, magnesium stearate, microcrystalline cellulose, polyethylene glycol, silicon dioxide, titanium dioxide. Dose strength-specific ingredients include: 5 mg—ferric oxide yellow, lactose monohydrate; 30 mg—lactose monohydrate; 35 mg—ferric oxide red, ferric oxide yellow, lactose monohydrate; 75 mg—ferric oxide red; 150 mg—FD&C blue #2 aluminum lake. The chemical structure of Risedronate Sodium hemi-pentahydrate is a pyridinyl bisphosphonate that inhibits osteoclast-mediated bone resorption and modulates bone metabolism. Each Risedronate Sodium for oral administration contains the equivalent of 5, 30, 35, 75, or 150 mg of anhydrous Risedronate Sodium in the form of the hemi-pentahydrate with small amounts of monohydrate. The empirical formula for Risedronate Sodium hemi-pentahydrate is C7H10NO7P2Na •2.5 H2O. The chemical name of Risedronate Sodium is [1-hydroxy-2-(3-pyridinyl)ethylidene]bis[phosphonic acid] monoSodium salt.

Risedronate sodium delayed-release tablets contain a pH-sensitive enteric coating and a chelating agent (EDTA). Risedronate is a pyridinyl bisphosphonate that inhibits osteoclast-mediated bone resorption and modulates bone metabolism. Each Risedronate sodium delayed-release tablet for oral administration contains the equivalent of 35 mg of anhydrous risedronate sodium in the form of the hemi-pentahydrate with small amounts of monohydrate. The empirical 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 fine, white to off-white, odorless, crystalline powder. It is soluble in water and in aqueous solutions, and essentially insoluble in common organic solvents. Inactive Ingredients Edetate disodium, ferric oxide yellow, magnesium stearate, methacrylic acid copolymer, polysorbate 80, silicified microcrystalline cellulose (ProSolv SMCC90), simethicone, sodium starch glycolate, stearic acid, talc, and triethyl citrate. The following chemical structure of Risedronate is a pyridinyl bisphosphonate that inhibits osteoclast-mediated bone resorption and modulates bone metabolism. Each Risedronate sodium tablet for oral administration contains the equivalent of 35 mg of anhydrous risedronate sodium in the form of the hemi-pentahydrate with small amounts of monohydrate. The empirical formula for risedronate sodium hemi-pentahydrate is C7H10NO7P2Na •2.5 H2O. The chemical name of risedronate sodium is [1-hydroxy-2-(3-pyridinyl)ethylidene]bis[phosphonic acid] monosodium salt.

Rivastigmine transdermal system contains rivastigmine, a reversible cholinesterase inhibitor known chemically as ( S )-3-[1-(Dimethylamino) ethyl]phenyl ethyl(methyl)carbamate. It has a molecular formula of C 14 H 22 N 2 O 2 as the base and a molecular weight of 250.34 g/mol (as the base). Rivastigmine, USP is a viscous, clear, and colorless to yellow to very slightly brown liquid that is sparingly soluble in water and very soluble in ethanol, acetonitrile, n-octanol and ethyl acetate. The distribution coefficient at 37°C in n-octanol/phosphate buffer solution pH 7 is 4.27. Rivastigmine transdermal system is for transdermal administration. The transdermal system is a 4-layer laminate containing the backing layer, drug matrix, adhesive matrix and slit protective release liner (see Figure 1). The release liner is removed and discarded prior to use. Figure 1: Cross Section of the Rivastigmine Transdermal System Excipients within the formulation include acrylic adhesive, dimethicone, poly(butylmethacrylate, methylmethacrylate), silicone adhesive, and flexible polymer backing film printed with brown ink. The brown ink contains acrylic polymers, carbon black, iron oxides (yellow and red), polyethylene wax, polytetrafluoroethylene, polyvinylpyrrolidone, and sodium dioctyl sulfosuccinate. Rivastigmine transdermal systems are packaged with an additional piece of protective film below the system within each pouch. This piece of protective film is removed and discarded at the time of use. Rivastigmine Structural Formula Figure 1: Cross Section of the Rivastigmine Transdermal System

Saxagliptin is an orally-active inhibitor of the DPP-4 enzyme. Saxagliptin hydrochloride dihydrate is described chemically as (1S,3S,5S)-2-[(2S)-Amino-(3-hydroxytricyclo [3.3.1.1 3,7 ]dec-1-yl)acetyl]-2-azabicyclo[3.1.0] hexane-3-carbonitrile hydrochloride dihydrate or (1S,3S,5S)-2-[(2S)-2-Amino-2-(3-hydroxyadamantan-1-yl)acetyl]-2-azabicyclo [3.1.0] hexane-3-carbonitrile hydrochloride dihydrate. The empirical formula is C 18 H 25 N 3 O 2 •HCl•2H 2 O and the molecular weight is 387.92. The structural formula is: Saxagliptin hydrochloride dihydrate 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 3.075 mg saxagliptin hydrochloride dihydrate equivalent to 2.5 mg saxagliptin or 6.149 mg saxagliptin hydrochloride dihydrate equivalent to 5 mg saxagliptin and the following inactive ingredients: croscarmellose sodium, hydrochloric acid, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, sodium hydroxide, talc and titanium dioxide. The 2.5 mg tablets also contain yellow iron oxide. The imprinting ink contains ammonium hydroxide, black iron oxide, propylene glycol and shellac glaze. Saxagliptin Hydrochloride Structural Formula

Saxagliptin and metformin hydrochloride extended-release tablets contain two oral antihyperglycemic medications used in the management of type 2 diabetes mellitus: saxagliptin and metformin HCl. Saxagliptin Saxagliptin is an orally active inhibitor of the dipeptidyl-peptidase-4 (DPP4) enzyme. Saxagliptin hydrochloride dihydrate is described chemically as (1S,3S,5S)-2-[(2S)-Amino-(3-hydroxytricyclo[3.3.1.1 3,7 ]dec-1-yl)acetyl]-2-azabicyclo[3.1.0]hexane-3-carbonitrile hydrochloride dihydrate or (1S,3S,5S)-2-[(2S)-2-Amino-2-(3-hydroxyadamantan-1-yl)acetyl]-2-azabicyclo[3.1.0]hexane-3-carbonitrile hydrochloride dihydrate. The empirical formula is C 18 H 25 N 3 O 2 •HCl•2 H 2 O and the molecular weight is 387.92. The structural formula is: Saxagliptin hydrochloride dihydrate 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). Metformin HCl Metformin hydrochloride, USP (1,1-Dimethylbiguanide monohydrochloride) 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 HCl is freely soluble in water, slightly soluble in alcohol, 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 HCl is 6.36. The structural formula is: Saxagliptin and Metformin Hydrochloride Extended-Release Tablets Saxagliptin and metformin hydrochloride extended-release tablets are available for oral administration as tablets containing either 6.149 mg saxagliptin hydrochloride dihydrate equivalent to 5 mg saxagliptin and 500 mg metformin hydrochloride (saxagliptin and metformin hydrochloride extended-release tablets 5 mg/500 mg), or 6.149 mg saxagliptin hydrochloride dihydrate equivalent to 5 mg saxagliptin and 1000 mg metformin hydrochloride (saxagliptin and metformin hydrochloride extended-release tablets 5 mg/1000 mg), or 3.075 mg saxagliptin hydrochloride dihydrate equivalent to 2.5 mg saxagliptin and 1000 mg metformin hydrochloride (saxagliptin and metformin hydrochloride extended-release tablets 2.5 mg/1000 mg). Each film-coated tablet of saxagliptin and metformin hydrochloride extended-release contains the following inactive ingredients: carbomer homopolymer type A, colloidal silicon dioxide, hypromellose, magnesium stearate, polyethylene glycol, polyvinyl alcohol, povidone, red iron oxide, stearic acid, talc and titanium dioxide. The 2.5 mg/1000 mg tablets also contain yellow iron oxide. In addition, the black imprinting ink contains ammonium hydroxide, black iron oxide, propylene glycol and shellac glaze. The biologically inert components of the tablet may occasionally remain intact during gastrointestinal transit and will be eliminated in the feces as a soft, hydrated mass. Saxagliptin Hydrochloride Dihydrate Structural Formula Metformin Hydrochloride Structural Formula

Scopolamine transdermal system is designed for continuous release of scopolamine following application to an area of intact skin on the head, behind the ear. Each system contains 1.5 mg of scopolamine base. Scopolamine is (9-methyl-3-oxa-9-azatricyclo[3.3.1.0 2,4 ]nonan-7-yl) 3-hydroxy-2-phenylpropanoate. The empirical formula is C 17 H 21 NO 4 and its structural formula is: Scopolamine has a molecular weight of 303.35 and a pKa of 7.55-7.81. The scopolamine transdermal system is a circular, 1.8 cm 2 film with four layers. Proceeding from the visible surface towards the surface attached to the skin, these layers are: (1) a backing layer of peach-colored polyethylene/polyester film printed with brown ink; (2) a solid matrix drug reservoir layer of silicone adhesive, scopolamine and povidone; (3) a microporous polypropylene membrane; and (4) an adhesive formulation of silicone adhesive, povidone and scopolamine. A protective, oversized release liner of fluoropolymer-coated polyester, which covers the adhesive formulation layer, is removed before the system is used. The brown ink contains acrylic polymers, carbon black, iron oxides (red and yellow), polydimethylsiloxane, polyethylene wax, polytetrafluoroethylene, polyvinylpyrrolidone, sodium dioctyl sulfosuccinate and triethanolamine. Scopolamine transdermal systems are packaged with an additional piece of protective film covering the system within each pouch. This piece of protective film is removed and discarded at the time of use. Cross section of the system: Scopolamine Structural Formula Cross section of the system

Sildenafil citrate tablets, 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 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 to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7. Sildenafil citrate tablets are formulated as white to off-white, film-coated rounded-diamond-shaped 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: anhydrous dibasic calcium phosphate, croscarmellose sodium, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, titanium dioxide, and triacetin. structural formula

Silver Sulfadiazine Cream 1% is a soft, white, water-miscible cream containing the antimicrobial agent silver sulfadiazine in micronized form, which has the following structural formula: Each gram of silver sulfadiazine cream 1% contains 10 mg of micronized silver sulfadiazine. The cream vehicle consists of white petrolatum, stearyl alcohol, isopropyl myristate, sorbitan monooleate, polyoxyl 40 stearate, propylene glycol, and water, with methylparaben 0.3% as a preservative. Silver Sulfadiazine Cream 1% spreads easily and can be washed off readily with water. Chemical Structure

Sirolimus is an mTOR inhibitor immunosuppressive agent. Sirolimus is a macrocyclic lactone produced by Streptomyces hygroscopicus . The chemical name of sirolimus (also known as rapamycin) is (3 S ,6 R ,7 E ,9 R ,10 R ,12 R ,14 S ,15 E ,17 E ,19 E ,21 S ,23 S ,26 R ,27 R ,34a S )-9,10,12,13,14,21,22,23,24,25,26,27,32,33,34, 34a-hexadecahydro-9,27-dihydroxy-3-[(1 R )-2-[(1 S ,3 R ,4 R )-4-hydroxy-3-methoxycyclohexyl]-1-methylethyl]-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-23,27-epoxy-3 H -pyrido[2,1-c][1,4] oxaazacyclohentriacontine-1,5,11,28,29 (4 H ,6 H ,31 H )-pentone. Its molecular formula is C 51 H 79 NO 13 and its molecular weight is 914.2. The structural formula of sirolimus is illustrated as follows. Sirolimus is a white to off-white powder and is insoluble in water, but freely soluble in benzyl alcohol, chloroform, acetone, and acetonitrile. Sirolimus is available as a tan, triangular-shaped tablet containing 0.5 mg sirolimus, as a white, triangular-shaped tablet containing 1 mg sirolimus, and as a yellow-to-beige triangular-shaped tablet containing 2 mg sirolimus. The inactive ingredients in sirolimus tablets include sucrose, lactose, polyethylene glycol 8000, calcium sulfate, microcrystalline cellulose, pharmaceutical glaze, talc, titanium dioxide, magnesium stearate, povidone, poloxamer 188, polyethylene glycol 20,000, glyceryl monooleate, carnauba wax, dl -alpha tocopherol, and other ingredients. The 0.5 mg and 2 mg dosage strengths also contain yellow iron (ferric) oxide and brown iron (ferric) oxide. Chemical structure

Sirolimus is an mTOR inhibitor immunosuppressive agent. Sirolimus is a macrocyclic lactone produced by Streptomyces hygroscopicus . The chemical name of sirolimus (also known as rapamycin) is (3 S ,6 R ,7 E ,9 R ,10 R ,12 R ,14 S ,15 E ,17 E ,19 E ,21 S ,23 S ,26 R ,27 R ,34a S )-9,10,12,13,14,21,22,23,24,25,26,27,32,33,34, 34a-hexadecahydro-9,27-dihydroxy-3-[(1 R )-2-[(1 S ,3 R ,4 R )-4-hydroxy-3-methoxycyclohexyl]-1-methylethyl]-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-23,27-epoxy-3 H -pyrido[2,1-c][1,4] oxaazacyclohentriacontine-1,5,11,28,29 (4 H ,6 H ,31 H )-pentone. Its molecular formula is C 51 H 79 NO 13 and its molecular weight is 914.2. The structural formula of sirolimus is illustrated as follows. Sirolimus is a white to off-white powder and is insoluble in water, but freely soluble in benzyl alcohol, chloroform, acetone, and acetonitrile. Sirolimus is available for administration as an oral solution containing 1 mg/mL sirolimus. The inactive ingredients in sirolimus oral solution are Phosal 50 PG ® (phosphatidylcholine, propylene glycol, mono- and di-glycerides, ethanol, soy fatty acids, and ascorbyl palmitate) and polysorbate 80. Sirolimus oral solution contains 1.5% – 2.5% ethanol. Chemical Structure

Sorafenib, a kinase inhibitor, is the tosylate salt of sorafenib. Sorafenib tosylate, USP has the chemical name 4-[4-({[4-chloro-3-(trifluoromethyl)phenyl]carbamoyl}amino)phenoxy]- N -methylpyridine-2-carboxamide, tosylate. The molecular formula of sorafenib tosylate, USP is C 21 H 16 ClF 3 N 4 O 3• C 7 H 8 O 3 S and the molecular weight of sorafenib tosylate, USP is 637.03 g/mole. Its structural formula is: Sorafenib tosylate, USP is a cream to yellow crystalline powder. Sorafenib tosylate, USP is practically insoluble in aqueous media, slightly soluble in ethanol and soluble in PEG 400. Sorafenib tablets, USP for oral use are supplied as film-coated tablets containing 200 mg sorafenib equivalent to 274 mg sorafenib tosylate, USP and the following inactive ingredients: carboxymethylcellulose calcium, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, red iron oxide, sodium lauryl sulfate and titanium dioxide. Sorafenib Tosylate Structural Formula

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 is practically insoluble in water, soluble in alcohol, and freely soluble in benzene and in chloroform. Inactive ingredients include calcium sulfate dihydrate, colloidal silicon dioxide, croscarmellose sodium, crospovidone, hypromellose, lactose monohydrate, magnesium stearate, peppermint flavor, polydextrose, polyethethylene glycol, povidone, pregelatinized starch (corn), sodium lauryl sulfate, titanium dioxide and triacetin. Spironolactone Structural Formula

Each tablet of spironolactone and hydrochlorothiazide contains 25 mg of spironolactone, USP and 25 mg of hydrochlorothiazide, USP. Spironolactone, an aldosterone antagonist, is 17-Hydroxy-7α-mercapto-3-oxo-17α - pregn-4-ene-21-carboxylic acid γ-lactone acetate and has the following structural formula, molecular formula and molecular weight: Spironolactone is practically insoluble in water, soluble in alcohol, and freely soluble in benzene and in chloroform. Hydrochlorothiazide, a diuretic and antihypertensive, is 6-Chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide and has the following structural formula, molecular formula and molecular weight: Hydrochlorothiazide is slightly soluble in water and freely soluble in sodium hydroxide solution. Each tablet for oral administration contains 25 mg of spironolactone and 25 mg of hydrochlorothiazide and the following inactive ingredients: colloidal silicon dioxide, corn starch, D&C Yellow No. 10 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake, lactose monohydrate, magnesium stearate, L-menthol, microcrystalline cellulose, peppermint oil, sodium lauryl sulfate and sodium starch glycolate (potato). Spironolactone Structural Formula Hydrochlorothiazide Structural Formula

Sucralfate oral suspension contains sucralfate and sucralfate is an α-D-Glucopyranoside, ß-D-fructofuranosyl-, octakis(hydrogen sulfate), aluminum complex. x = 8 to 10, and y = 22 to 31 Sucralfate oral suspension for oral administration contains 1 g of sucralfate per 10 mL. Sucralfate oral suspension also contains: artificial cherry flavor, colloidal silicon dioxide, FD&C Red No. 40, glycerin, methylcellulose, methylparaben, microcrystalline cellulose, purified water, simethicone (which contains polydimethylsiloxane and silicon dioxide) and sorbitol solution. Therapeutic category: antiulcer. Sucralfate Structural Formula

Sulfasalazine delayed release tablets contain sulfasalazine, formulated in a delayed release tablet (enteric-coated), 500 mg, for oral administration. Sulfasalazine delayed release tablets are film coated with cellulose acetate phthalate to retard disintegration of the tablet in the stomach and reduce potential irritation of the gastric mucosa. Therapeutic Classification: Anti-inflammatory agent and/or immunomodulatory agent. Chemical Designation: 5-([p-(2-pyridylsulfamoyl)phenyl]azo) salicylic acid. Chemical Structure: Molecular Formula: C 18 H 14 N 4 O 5 S Inactive Ingredients: beeswax (white), carnauba wax, cellacefate, magnesium stearate, polyethylene glycol, povidone, propylene glycol, self-emulsifying glycerol monostearate, silica (colloidal anhydrous), starch (pregelatinized), talc. Chemical Structure

Sulfasalazine tablets contain sulfasalazine, 500 mg, for oral administration. Therapeutic Classification: Anti-inflammatory agent. Chemical Designation: 5-([p-(2-pyridylsulfamoyl)phenyl]azo) salicylic acid. Chemical Structure: Molecular Formula: C 18 H 14 N 4 O 5 S Inactive Ingredients: magnesium stearate, povidone, silica (colloidal anhydrous), starch (pregelatinized). Chemical Structure

Sumatriptan tablets, USP contain sumatriptan succinate, a selective 5-HT 1B/1D receptor agonist. Sumatriptan succinate is chemically designated as 3-[2-(Dimethylamino)ethyl]- N -methylindole-5-methanesulfonamide succinate (1:1), and it has the following structure: The molecular formula is C 14 H 21 N 3 O 2 S•C 4 H 6 O 4 , representing a molecular weight of 413.5. Sumatriptan succinate, USP is a white to off-white powder that is readily soluble in water and in saline. Each sumatriptan tablet for oral administration contains 35, 70, or 140 mg of sumatriptan succinate, USP equivalent to 25, 50, or 100 mg of sumatriptan, respectively. Each tablet also contains the inactive ingredients colloidal silicon dioxide, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, povidone, sodium lauryl sulfate, titanium dioxide and triacetin. Meets USP Dissolution Test 2. Sumatriptan Structural Formula

Sunitinib is a kinase inhibitor present in sunitinib malate capsules as the malate salt. Sunitinib malate is described chemically as N -[2-(Diethylamino)ethyl]-5-[( Z )-(5-fluoro-2-oxo-1,2-dihydro-3 H -indol-3-ylidene)methyl]-2,4-dimethyl-1 H -pyrrole-3-carboxamide hydrogen (2 S )-2-hydroxybutanedioate. The molecular formula is C 22 H 27 FN 4 O 2 • C 4 H 6 O 5 and the molecular weight is 532.6. The chemical structure of sunitinib malate is: Sunitinib malate is a yellow to orange powder with a pKa of 8.95. The solubility of sunitinib malate in aqueous media over the range pH 1.2 to pH 6.8 is in excess of 25 mg/mL. The log of the distribution coefficient (octanol/water) at pH 7 is 5.2. Sunitinib malate capsules are supplied as printed hard-shell capsules containing 12.5 mg, 25 mg, 37.5 mg or 50 mg of sunitinib (equivalent to 16.7 mg, 33.4 mg, 50.1 mg, or 66.8 mg of sunitinib malate, respectively). The capsules contain the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, gelatin, magnesium stearate, mannitol, sodium lauryl sulfate and titanium dioxide. The 12.5 mg and 25 mg strengths also contain red iron oxide. The 25 mg, 37.5 mg and 50 mg strengths also contain yellow iron oxide. In addition, the black imprinting ink contains the following: ammonium hydroxide, black iron oxide, propylene glycol and shellac glaze. Sunitinib Structural Formula

Tacrolimus, previously known as FK506, is the active ingredient in tacrolimus capsules. Tacrolimus is a calcineurin-inhibitor immunosuppressant produced by Streptomyces tsukubaensis. Chemically, tacrolimus is designated as (‒)-(3S,4R,5S,8R,9E,12S,14S,15R,16S,18R,19R,26aS)-8-Allyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[(E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylvinyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-15,19-epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone monohydrate. The chemical structure of tacrolimus is: Tacrolimus has a molecular formula of C 44 H 69 NO 12 •H 2 O and a formula weight of 822.03. Tacrolimus, USP appears as a white to off-white powder. It is insoluble in water, very soluble in ethanol, and soluble in methanol and chloroform. Tacrolimus capsules, USP are available for oral administration as capsules containing the equivalent of 0.5 mg, 1 mg or 5 mg of anhydrous tacrolimus. Inactive ingredients include anhydrous lactose, black iron oxide, colloidal silicon dioxide, croscarmellose sodium, gelatin, hypromellose, lactose monohydrate, magnesium stearate, sodium lauryl sulfate, titanium dioxide and yellow iron oxide. The 0.5 mg capsules also contain D&C Red No. 28, D&C Yellow No. 10 and FD&C Red No. 40, the 1 mg capsules also contain FD&C Blue No. 1 and FD&C Red No. 3 and the 5 mg capsules also contain D&C Red No. 33, D&C Red No. 28 and D&C Yellow No. 10. In addition, the black imprinting ink contains black iron oxide, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, propylene glycol and shellac glaze. Meets USP Dissolution Test 5. Tacrolimus Structural Formula

Tamoxifen Citrate Tablets USP, a nonsteroidal antiestrogen, are for oral administration. Tamoxifen citrate tablets are available as: 10 mg Tablets . Each tablet contains 15.2 mg of tamoxifen citrate which is equivalent to 10 mg of tamoxifen. 20 mg Tablets . Each tablet contains 30.4 mg of tamoxifen citrate which is equivalent to 20 mg of tamoxifen. Each tablet contains the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, crospovidone, magnesium stearate, microcrystalline cellulose and sodium lauryl sulfate. Chemically, tamoxifen is the trans-isomer of a triphenylethylene derivative. The chemical name is (Z)2-[4-(1,2-diphenyl-1-butenyl) phenoxy]-N, N-dimethylethanamine 2-hydroxy-1,2,3- propanetricarboxylate (1:1). The structural and molecular formulas are: Tamoxifen citrate has a molecular weight of 563.62, the pKa' is 8.85, the equilibrium solubility in water at 37°C is 0.5 mg/mL and in 0.02 N HCl at 37°C, it is 0.2 mg/mL. Tamoxifen Structural Formula