mylan pharmaceuticals inc. - Medication Listings

Levothyroxine sodium tablets, USP is L-thyroxine (T4) and contains synthetic crystalline L-3,3',5,5'-tetraiodothyronine sodium salt. Synthetic T4 is chemically identical to that produced in the human thyroid gland. Levothyroxine (T4) sodium has an empirical formula of C 15 H 10 I 4 N NaO 4 • H 2 O, molecular weight of 798.86 g/mol (anhydrous), and structural formula as shown: Levothyroxine sodium tablets for oral administration are supplied in the following strengths: 25 mcg, 50 mcg, 75 mcg, 88 mcg, 100 mcg, 112 mcg, 125 mcg, 137 mcg, 150 mcg, 175 mcg, 200 mcg, and 300 mcg. Each levothyroxine sodium tablet contains the inactive ingredients butylated hydroxyanisole, colloidal silicon dioxide, crospovidone, magnesium stearate, mannitol, microcrystalline cellulose, povidone, sodium lauryl sulfate and sucrose. Table 9 provides a listing of the color additives by tablet strength: Table 9. Levothyroxine Sodium Tablets Color Additives Strength (mcg) Color additive(s) 25 FD&C Yellow No. 6 Aluminum Lake 50 None 75 FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake 88 D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake 100 D&C Yellow No. 10 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake 112 D&C Red No. 27 Aluminum Lake, D&C Red No. 30 Aluminum Lake 125 FD&C Blue No. 1 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake 137 FD&C Blue No. 2 Aluminum Lake 150 FD&C Blue No. 2 Aluminum Lake 175 D&C Red No. 27 Aluminum Lake, D&C Red No. 30 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake 200 FD&C Red No. 40 Aluminum Lake 300 D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake Levothyroxine Structural Formula

Atorvastatin is an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase. Atorvastatin calcium is Calcium ( βR , δR )-2-( p -fluorophenyl)- β , δ -dihydroxy-5-isopropyl-3-phenyl-4-(phenylcarbamoyl) pyrrole-1-heptanoate (1:2), trihydrate. The molecular formula of atorvastatin calcium is C 66 H 68 CaF 2 N 4 O 10 •3H 2 O and its molecular weight is 1209. Its structural formula is: Atorvastatin calcium, USP is a white to off-white crystalline powder that is insoluble in aqueous solutions of pH 4 and below. Atorvastatin calcium is very slightly soluble in distilled water, pH 7.4 phosphate buffer, and acetonitrile; slightly soluble in ethanol; and freely soluble in methanol. Atorvastatin calcium tablets for oral use contain atorvastatin 10 mg, 20 mg, 40 mg, or 80 mg (equivalent to 10.84 mg, 21.69 mg, 43.38 mg, or 86.75 mg atorvastatin calcium trihydrate) and the following inactive ingredients: anhydrous lactose, anhydrous sodium carbonate, colloidal silicon dioxide, croscarmellose sodium, hydroxypropyl cellulose, L-Arginine, magnesium stearate and microcrystalline cellulose. The film coating of the tablets contains polyvinyl alcohol, talc and titanium dioxide, and may contain polyethylene glycol or lecithin and xanthan gum. Meets USP Dissolution Test 4. Atorvastatin Calcium Structural Formula

Metformin hydrochloride tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is 1,1-Dimethylbiguanide monohydrochloride. The structural formula is as shown below: Metformin hydrochloride, USP is a white to off-white crystalline powder with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.62. It 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 tablets contain 500 mg, 850 mg, or 1000 mg of metformin hydrochloride. Each tablet contains the inactive ingredients artificial blackberry flavor, magnesium stearate, polyethylene glycol, polyvinyl alcohol, povidone, talc and titanium dioxide. Metformin Hydrochloride Structural Formula

Metformin hydrochloride extended-release tablets, USP contain the biguanidine antihyperglycemic agent, metformin, in the form of monohydrochloride salt. The chemical name of metformin hydrochloride is 1,1-Dimethybiguanide monohydrochloride with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.6. Its structural formula is: Metformin hydrochloride, USP is a white crystalline powder that 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 deliver 500 mg or 1000 mg of metformin hydrochloride. In addition to the active ingredient metformin hydrochloride, each tablet contains the following inactive ingredients: cellulose acetate, hypromellose, lactose monohydrate, magnesium stearate, polyethylene glycol, povidone, red iron oxide, sodium lauryl sulfate, talc, titanium dioxide, triacetin, triethyl citrate and yellow iron oxide. In addition, the black imprinting ink contains ammonium hydroxide, black iron oxide, propylene glycol and shellac glaze. Meets USP Dissolution Test 5. Metformin hydrochloride structural formula

Amlodipine besylate is the besylate salt of amlodipine, a long‑acting calcium channel blocker. Amlodipine besylate 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 CIN 2 O 5 C 6 H 6 O 3 S, and its structural formula is: Amlodipine besylate is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets are formulated as white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, and magnesium stearate. Amlodipine besylate structural formula

Metoprolol succinate is a beta 1 -selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended-release tablets. Metoprolol succinate extended-release tablets, USP have been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 23.75, 47.5, 95 and 190 mg of metoprolol succinate equivalent to 25, 50, 100 and 200 mg of metoprolol tartrate, USP, respectively. Its chemical name is (±)-1-(Isopropylamino)-3-[ p -(2-methoxyethyl)phenoxy]-2-propanol succinate (2:1) (salt). Its structural formula is: Metoprolol succinate, USP is a white to off-white powder with a molecular weight of 652.81. It is freely soluble in water; soluble in methanol; sparingly soluble in ethanol; slightly soluble in dichloromethane and 2-propanol; practically insoluble in ethyl acetate, acetone, diethyl ether and heptane. Inactive ingredients: colloidal silicon dioxide, ethyl cellulose, hypromellose, lactose monohydrate, microcrystalline cellulose, polyethylene glycol, sodium stearyl fumarate, titanium dioxide and triacetin. Metoprolol Succinate Structural Formula

Albuterol sulfate inhalation solution is a sterile, clear, colorless solution of the sulfate salt of racemic albuterol, albuterol sulfate. Albuterol sulfate is a relatively selective beta 2 - adrenergic bronchodilator (see CLINICAL PHARMACOLOGY ). The chemical name for albuterol sulfate is α 1 [(tert-butylamino) methyl]-4-hydroxy-m-xylene-α, α’-diol sulfate (2:1) (salt), and its established chemical structure is as follows: The molecular weight of albuterol sulfate is 576.7 and the empirical formula is (C 13 H 21 NO 3 ) 2 • H 2 SO 4 . Albuterol sulfate is a white crystalline powder, soluble in water and slightly soluble in ethanol. The World Health Organization recommended name for albuterol is salbutamol. Albuterol Sulfate Inhalation Solution is supplied in two strengths in unit dose vials. Each unit dose vial contains either 0.63 mg of albuterol equivalent to 0.75 mg of albuterol sulfate or 1.25 mg of albuterol equivalent to 1.5 mg of albuterol sulfate with sodium chloride, edetate disodium (EDTA), and sulfuric acid in a 3-mL isotonic, sterile, aqueous solution. Sodium chloride is added to adjust isotonicity of the solution, EDTA is added as a stabilizer for the active pharmaceutical ingredient, and sulfuric acid is added to adjust pH of the solution to 3.5 (see HOW SUPPLIED ). Albuterol Sulfate Inhalation Solution does not require dilution prior to administration by nebulization. For Albuterol Sulfate Inhalation Solution, like all other nebulized treatments, the amount delivered to the lungs will depend on patient factors, the jet nebulizer utilized, and compressor performance. Using the Pari LC Plus™ nebulizer (with face mask or mouthpiece) connected to a Pari PRONEB™ compressor, under in vitro conditions, the mean delivered dose from the mouth piece (% nominal dose) was approximately 43% of albuterol (1.25 mg strength) and 39% of albuterol (0.63 mg strength) at a mean flow rate of 3.6 L/min. The mean nebulization time was 15 minutes or less. Albuterol Sulfate Inhalation Solution should be administered from a jet nebulizer at an adequate flow rate, via a mouthpiece or face mask (see DOSAGE AND ADMINISTRATION ). Albuterol Sulfate Structural Formula

Albuterol sulfate inhalation solution is a relatively selective beta 2 -adrenergic bronchodilator (see CLINICAL PHARMACOLOGY section below). Albuterol sulfate, the racemic form of albuterol, has the chemical name α 1 -[( tert -Butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1) (salt), and the following structural formula: Albuterol sulfate has a molecular weight of 576.70, and the molecular formula (C 13 H 21 NO 3 ) 2 • H 2 SO 4 . Albuterol sulfate is a white or practically white powder, freely soluble in water and slightly soluble in alcohol. The World Health Organization recommended name for albuterol base is salbutamol. Albuterol sulfate inhalation solution 0.083% requires no dilution before administration. Each milliliter of Albuterol Sulfate Inhalation Solution 0.083% contains 0.83 mg of albuterol (as 1 mg of albuterol sulfate) in an isotonic, sterile, aqueous solution containing sodium chloride; sulfuric acid is used to adjust the pH to between 3 and 5. Albuterol Sulfate Inhalation Solution 0.083% contains no sulfiting agents or preservatives. Albuterol sulfate inhalation solution is a clear, colorless to light yellow solution. Chemical Structure

The active ingredient in gabapentin oral solution is gabapentin, which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin is a white to off-white crystalline solid with a pK a1 of 3.7 and a pK a2 of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is -1.25. Gabapentin oral solution contains 250 mg of gabapentin per 5 mL (50 mg per mL) and the following inactive ingredients: artificial cool strawberry anise flavor, glycerin, purified water, and xylitol. Gabapentin Structural Formula

The active ingredient in pantoprazole sodium delayed-release tablets USP, a PPI, is a substituted benzimidazole, sodium salt of 5-(Difluoromethoxy)-2-[[(3,4-dimethoxy-2-Pyridinyl)methyl]sulfinyl]-1 H -benzimidazole sesquihydrate, a compound that inhibits gastric acid secretion. Its molecular formula is C 16 H 14 F 2 N 3 NaO 4 S x 1.5 H 2 O, with a molecular weight of 432.36. The structural formula is: Pantoprazole sodium sesquihydrate is a white to off-white crystalline powder and is racemic. Pantoprazole has weakly basic and acidic properties. Pantoprazole sodium sesquihydrate is freely soluble in water, very slightly soluble in phosphate buffer at pH 7.4, and practically insoluble in n-hexane. 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 is supplied as a delayed-release tablet, available in two strengths 20 mg pantoprazole (equivalent to 22.55 mg of pantoprazole sodium) and 40 mg pantoprazole (equivalent to 45.10 mg of pantoprazole sodium). Pantoprazole sodium delayed-release tablets contain the following inactive ingredients: anhydrous sodium carbonate, calcium stearate, crospovidone, hypromellose, mannitol, methacrylic acid and ethyl acrylate copolymer dispersion, povidone, propylene glycol, titanium dioxide, triethyl citrate and yellow iron oxide. The black imprinting ink contains black iron oxide, propylene glycol and shellac glaze. Meets USP Dissolution Test 3. Pantoprazole Sodium Structural Formula

Sertraline hydrochloride oral solution contains sertraline hydrochloride, an SSRI. Sertraline hydrochloride has a molecular weight of 342.7 and has the following chemical name: (1S-cis)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-N-methyl-1-naphthalenamine hydrochloride. The empirical formula C 17 H 17 NCl 2 •HCl is represented by the following structural formula: Sertraline hydrochloride is a white crystalline powder that is slightly soluble in water and isopropyl alcohol, and sparingly soluble in ethanol. Sertraline hydrochloride oral solution is available in a multidose 60 mL bottle. Each mL of solution contains 22.4 mg sertraline hydrochloride equivalent to 20 mg of sertraline. The solution contains the following inactive ingredients: glycerin, alcohol (12%), menthol, butylated hydroxytoluene (BHT). The oral solution must be diluted prior to administration [See Dosage and Administration (2.7) ] . The dispenser contains dry natural rubber. Sertraline Hydrochloride Structural Formula

Each tablet for oral administration contains: Prednisone, USP.................................................5 mg, 10 mg and 20 mg Inactive Ingredients Prednisone tablets, USP of 5 mg and 10 mg strengths contain anhydrous lactose, colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, sodium starch glycolate, and talc. Prednisone tablets of 20 mg strength contain anhydrous lactose, D&C Yellow No. 10 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake, magnesium stearate, microcrystalline cellulose and sodium starch glycolate. Prednisone tablets contain prednisone which is a glucocorticoid. Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, which are readily absorbed from the gastrointestinal tract. The chemical name for prednisone is pregna-1,4-diene-3,11,20-trione monohydrate,17,21-dihydroxy-. The structural formula is represented below: C 21 H 26 O 5 M.W. 358.43 Prednisone, USP is a white to practically white, odorless, crystalline powder. It is very slightly soluble in water; slightly soluble in alcohol, chloroform, dioxane, and methanol. structural formula

The active ingredient in esomeprazole magnesium delayed-release capsules for oral administration is 1H-Benzimidazole,5-methoxy-2-[(S)-[4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl], magnesium salt (2:1), a PPI. Esomeprazole is the S-isomer of omeprazole, which is a mixture of the S- and R- isomers. (Initial U.S. approval of esomeprazole magnesium: 2001). Its molecular formula is C 34 H 36 MgN 6 O 6 S 2 with molecular weight of 713.12 on an anhydrous basis. The structural formula is: The magnesium salt is an off-white to pale cream colored powder. It is slightly soluble in water. The stability of esomeprazole magnesium 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. Esomeprazole magnesium is supplied in delayed-release capsules. Each esomeprazole magnesium delayed-release capsule contains 20 mg of esomeprazole (equivalent to 22.25 mg esomeprazole magnesium) or 40 mg of esomeprazole (equivalent to 44.50 mg esomeprazole magnesium) in the form of enteric-coated pellets with the following inactive ingredients: crospovidone, hydroxypropyl cellulose, mannitol, methacrylic acid-ethyl acrylate copolymer dispersion, sucrose, sugar spheres (corn starch and sucrose), talc, titanium dioxide and triethyl citrate. The capsule shells have the following inactive ingredients: gelatin and titanium dioxide, and may contain sodium lauryl sulfate. The imprinting ink contains black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. Esomeprazole Magnesium Structural Formula

Sildenafil, phosphodiesterase-5 (PDE-5) inhibitor, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type-5 (PDE-5). Sildenafil is also marketed as VIAGRA ® for erectile dysfunction. Sildenafil citrate is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1 H -pyrazolo [4,3- d ] pyrimidin-5-yl)-4-ethoxyphenyl] sulfonyl]-4-methylpiperazine citrate and has the following structural formula: Sildenafil citrate is a white 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 is formulated as white, film-coated round tablets for oral administration. Each tablet contains sildenafil citrate equivalent to 20 mg of sildenafil. 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, hypromellose, titanium dioxide, lactose monohydrate, and triacetin. Sildenafil for Oral Suspension: Sildenafil is supplied as white to off-white powders containing 1.57 g of sildenafil citrate (equivalent to 1.12 g sildenafil) in an amber glass bottle intended for reconstitution. Following reconstitution with 90 mL water, the volume of the oral suspension is 112 mL and the oral suspension contains 10 mg/mL sildenafil. The inactive ingredients include sorbitol, citric acid anhydrous, sucralose, sodium citrate dihydrate, xanthan gum, titanium dioxide, sodium benzoate, colloidal silicon dioxide anhydrous and grape flavor. In addition to the bottle, a press-in bottle adapter and an oral dosing syringe (with 0.5 mL and 2 mL dose markings) are provided. Chemical Structure

Azithromycin tablets and oral suspension contains the active ingredient azithromycin, a macrolide antibacterial drug, for oral administration. Azithromycin has the chemical name ( 2R,3S,4R,5R,8R,10R,11R,12S,13S,14R )-13-[(2,6-dideoxy-3- C -methyl-3- O -methyl- α-L-ribo -hexopyranosyl)oxy]-2-ethyl- 3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6- trideoxy-3-(dimethylamino)-β- D-xylo -hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one. Azithromycin is derived from erythromycin; however, it differs chemically from erythromycin in that a methyl-substituted nitrogen atom is incorporated into the lactone ring. Its molecular formula is C 38 H 72 N 2 O 12 , and its molecular weight is 749.0. Azithromycin has the following structural formula: Azithromycin, as the dihydrate, is a white crystalline powder with a molecular formula of C 38 H 72 N 2 O 12 ∙2H 2 O and a molecular weight of 785.0. Azithromycin tablets contain azithromycin dihydrate equivalent to 600 mg azithromycin. They also contain the following inactive ingredients: dibasic calcium phosphate anhydrous, pregelatinized starch, sodium croscarmellose, magnesium stearate, sodium lauryl sulfate, and an aqueous film coat consisting of hypromellose, titanium dioxide, lactose, and triacetin. Azithromycin for oral suspension is supplied in a single - dose packet containing azithromycin dihydrate equivalent to 1 g azithromycin. It also contains the following inactive ingredients: colloidal silicon dioxide, sodium phosphate tribasic, anhydrous; spray dried artificial banana flavor, spray dried artificial cherry flavor, and sucrose. Chemical Structure

Citalopram tablets, USP contain citalopram, a selective serotonin reuptake inhibitor (SSRI). Citalopram hydrobromide is a racemic bicyclic phthalane structure and is designated (±)-1-(3-dimethylaminopropyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile hydrobromide with the following structural formula: The molecular formula is C 20 H 22 BrFN 2 O and its molecular weight is 405.35. Citalopram hydrobromide, USP occurs as a white to almost white, crystalline powder. Citalopram hydrobromide is sparingly soluble in water and soluble in ethanol. Citalopram tablets are for oral administration and are available as film-coated round tablets. The strengths reflect citalopram base equivalent content. The 10 mg, 20 mg, and 40 mg strength tablets contain 12.5 mg, 25 mg, and 50 mg of citalopram hydrobromide, respectively. The 20 mg and 40 mg tablets are scored. Inactive ingredients: colloidal silicon dioxide, corn starch, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, sodium lauryl sulfate, titanium dioxide and triacetin. The 10 mg and 20 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake. The 20 mg tablets also contain FD&C Red No. 40 Aluminum Lake. Citalopram Hydrobromide Meets USP Organic Impurities Procedure 2. Citalopram Structural Formula

Methylphenidate transdermal system is an adhesive-based matrix transdermal system containing methylphenidate that is applied to intact skin. The chemical name for methylphenidate is α-phenyl-2-piperidineacetic acid methyl ester. It is a white to off-white powder and is soluble in alcohol, ethyl acetate, and ether. Methylphenidate is practically insoluble in water and petrol ether. Its molecular weight is 233.31. Its empirical formula is C 14 H 19 NO 2 . The structural formula of methylphenidate is: Transdermal System Components Methylphenidate transdermal system contains methylphenidate in a polyisobutylene adhesive. The composition per unit area of all dosage strengths is identical, and the total dose delivered is dependent on the transdermal system size and wear time. Methylphenidate transdermal system consists of four layers, as seen in the figure below (cross-section of the transdermal system) Proceeding from the outer surface toward the surface adhering to the skin, the layers are (1) a polyester/ethylene vinyl acetate laminate film backing and white ink which contains acrylic polymers, polyethylene wax, polytetrafluoroethylene, polyvinylpyrrolidone, sodium dioctyl sulfosuccinate and titanium dioxide, (2) a solid matrix drug reservoir of methylphenidate, polyisobutylene adhesive, mineral oil and hydrophobic colloidal silica, (3) a skin contact adhesive formulation of polyisobutylene adhesive, mineral oil and hydrophobic colloidal silica, and (4) a fluoropolymer-coated polyester protective liner, which is attached to the adhesive surface and must be removed before the transdermal system can be used. The active component of the transdermal system is methylphenidate. The remaining components are pharmacologically inactive. Methylphenidate transdermal systems are packaged with an additional piece of protective film above the system within each pouch. This piece of protective film is removed and discarded at the time of use. Methylphenidate Structural Formula Four layers of patch and cross-section of the patch

Lisdexamfetamine dimesylate, a CNS stimulant, is for once-a-day oral administration. The chemical designation for lisdexamfetamine dimesylate is (2S)-2,6-diamino-N-[(1S)-1-methyl-2-phenylethyl] hexanamide dimethanesulfonate. The molecular formula is C 17 H 33 N 3 O 7 S 2 , which corresponds to a molecular weight of 455.60. The chemical structure is: Lisdexamfetamine dimesylate is a white to off-white powder that is soluble in water (792 mg/mL). Information for lisdexamfetamine dimesylate capsules: Lisdexamfetamine dimesylate capsules contain 10 mg, 20 mg, 30 mg, 40 mg, 50 mg, 60 mg, or 70 mg of lisdexamfetamine dimesylate (equivalent to 5.8 mg, 11.6 mg, 17.3 mg, 23.1 mg, 28.9 mg, 34.7 mg, or 40.5 mg of lisdexamfetamine). Inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, gelatin, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate and titanium dioxide. The 10 mg capsules also contain D&C Red No. 33, FD&C Blue No. 1 and FD&C Red No. 40. The 20 mg, 30 mg, 40 mg and 70 mg capsules also contain yellow iron oxide. The 30 mg and 70 mg capsules also contain red iron oxide. The 40 mg, 50 mg, 60 mg and 70 mg capsules also contain FD&C Blue No. 2. In addition, the black imprinting ink for the 10 mg capsules contains black iron oxide, D&C Yellow No. 10, FD&C Blue No. 1, FD&C Blue No. 2, FD&C Red No. 40, propylene glycol and shellac glaze. The black imprinting ink for the 20 mg, 30 mg, 40 mg, 50 mg, 60 mg and 70 mg capsules contains ammonium hydroxide, black iron oxide, propylene glycol and shellac glaze. chemical structure

Abacavir sulfate is a synthetic carbocyclic nucleoside analogue with inhibitory activity against HIV-1. The chemical name of abacavir sulfate is (1 S ,4 R )-4-[2-Amino-6-(cyclopropylamino)-9 H -purin-9-yl]-2-cyclopentene-1-methanol sulfate (salt) (2:1). Abacavir sulfate is the enantiomer with 1S, 4R absolute configuration on the cyclopentene ring. It has a molecular formula of (C 14 H 18 N 6 O) 2 •H 2 SO 4 and a molecular weight of 670.76 g per mol. It has the following structural formula: Abacavir sulfate, USP is a white to off-white powder and is soluble in water. Abacavir tablets, USP are for oral administration. Each tablet contains abacavir sulfate equivalent to 300 mg of abacavir as active ingredient and the following inactive ingredients: colloidal silicon dioxide, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, red iron oxide, sodium starch glycolate (potato), titanium dioxide and yellow iron oxide. In vivo , abacavir sulfate dissociates to its free base, abacavir. Dosages are expressed in terms of abacavir. Abacavir Sulfate Structural Formula

Abiraterone acetate, the active ingredient of abiraterone acetate tablets, USP is the acetyl ester of abiraterone. Abiraterone is an inhibitor of CYP17 (17α-hydroxylase/C17,20-lyase). Each abiraterone acetate tablet contains either 250 mg or 500 mg of abiraterone acetate. Abiraterone acetate is designated chemically as 17-(Pyridin-3-yl)androsta-5,16-dien-3β-yl acetate and its structure is: Abiraterone acetate, USP is a white to off-white, non-hygroscopic, powder. Its molecular formula is C 26 H 33 NO 2 and it has a molecular weight of 391.55. Abiraterone acetate is a lipophilic compound with an octanol-water partition coefficient of 5.12 (Log P) and is practically insoluble in water. The pKa of the aromatic nitrogen is 5.19. Abiraterone acetate tablets are available in 500 mg film-coated tablets and 250 mg uncoated tablets with the following inactive ingredients: • 500 mg film-coated tablets: croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, povidone, sodium lauryl sulfate, titanium dioxide and triacetin. • 250 mg uncoated tablets: croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium lauryl sulfate. Meets USP Dissolution Test 3 for the 500 mg tablets. Abiraterone Acetate Structural Formula

Acamprosate calcium is supplied in an enteric-coated tablet for oral administration. Acamprosate calcium is a synthetic compound with a chemical structure similar to that of the endogenous amino acid homotaurine, which is a structural analogue of the amino acid neurotransmitter γ-aminobutyric acid and the amino acid neuromodulator taurine. Its chemical name is 3-(Acetylamino)-1-propanesulfonic acid calcium salt (2:1). Its chemical formula is C 10 H 20 N 2 O 8 S 2 Ca and molecular weight is 400.48. Its structural formula is: Acamprosate calcium, USP is a white odorless crystalline powder. It is freely soluble in water, and practically insoluble in absolute ethanol and dichloromethane. Each acamprosate calcium delayed-release tablet contains acamprosate calcium 333 mg, equivalent to 300 mg of acamprosate. Inactive ingredients in acamprosate calcium delayed-release tablets include: colloidal silicon dioxide, glyceryl dibehenate, hypromellose, magnesium stearate, methacrylic acid copolymer type A, microcrystalline cellulose, propylene glycol and talc. In addition, the black imprinting ink for the tablets contains ammonium hydroxide, black iron oxide, propylene glycol and shellac glaze. Sulfites were used in the synthesis of the drug substance and traces of residual sulfites may be present in the drug product. Acamprosate Calcium Structural Formula

Acitretin capsules, USP (acitretin), a retinoid, are available in 10-mg or 25-mg gelatin capsules for oral administration. Chemically, acitretin, USP is ( all-E )-9-(4-Methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nonatetraenoic acid. It is a metabolite of etretinate and is related to both retinoic acid and retinol (vitamin A). It is a yellow or greenish crystalline powder with a molecular weight of 326.44. The structural formula is: Each capsule contains acitretin, edetate disodium, gelatin, maltodextrin, microcrystalline cellulose, poloxamer 407, red iron oxide, sodium ascorbate and titanium dioxide. The 25 mg capsules also contain black iron oxide and yellow iron oxide. The black imprinting ink for the 10 mg capsules contains black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. The white imprinting ink for the 25 mg capsules contains povidone, propylene glycol, shellac, sodium hydroxide and titanium dioxide. Acitretin structural formula

Allopurinol is a xanthine oxidase inhibitor. It has the following structural formula: Allopurinol is known chemically as 1,5-Dihydro-4 H -pyrazolo[3,4- d ]pyrimidin-4-one and it has a molecular weight of 136.11 g/mol. Its solubility in water at 37°C is 80.0 mg/dL and is greater in an alkaline solution. It is a xanthine oxidase inhibitor which is administered orally. Each scored, white, round tablet contains 100 mg or 300 mg allopurinol, USP and the inactive ingredients colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn), sodium lauryl sulfate and sodium starch glycolate (potato). Allopurinol strucurak formula

Almotriptan tablets, USP contain almotriptan malate, 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 molecular formula is C 17 H 25 N 3 O 2 S•C 4 H 6 O 5 , representing a molecular weight of 469.56. Almotriptan malate, USP is a white to light yellow color crystalline powder that is soluble in water. Almotriptan tablets for oral administration contain 8.75 mg or 17.50 mg of almotriptan malate equivalent to 6.25 mg or 12.5 mg of almotriptan, respectively. Each compressed tablet contains the following inactive ingredients: hypromellose, mannitol, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate (potato), sodium stearyl fumarate and titanium dioxide. Almotriptan Malate Structural Formula

Alprazolam tablets, USP contain alprazolam which is a triazolo analog of the 1,4 benzodiazepine class of central nervous system-active compounds. The chemical name of alprazolam is 8-Chloro-1-methyl-6-phenyl-4H-s-triazolo [4,3-α] [1,4] benzodiazepine. The structural formula is: Alprazolam is a white crystalline powder, which is soluble in methanol or ethanol but which has no appreciable solubility in water at physiological pH. Each alprazolam tablet, for oral administration, contains 0.25 mg, 0.5 mg, 1 mg, or 2 mg of alprazolam. Inactive ingredients: cellulose, corn starch, docusate sodium, lactose, magnesium stearate, silicon dioxide and sodium benzoate. In addition, the 0.5 mg tablet contains FD&C Yellow No. 6 and the 1 mg tablet contains FD&C Blue No. 2. Alprazolam Structural Formula

Alprazolam XR contains alprazolam which is a triazolo analog of the 1,4 benzodiazepine class of central nervous system-active compounds. The chemical name of alprazolam is 8-chloro-1-methyl-6-phenyl-4 H - s -triazolo [4,3-α] [1,4] benzodiazepine. The molecular formula is C 17 H 13 ClN 4 which corresponds to a molecular weight of 308.76. The structural formula is represented below: Alprazolam is a white crystalline powder, which is soluble in methanol or ethanol but which has no appreciable solubility in water at physiological pH. Each alprazolam XR extended-release tablet, for oral administration, contains 0.5 mg, 1 mg, 2 mg, or 3 mg of alprazolam. The inactive ingredients are colloidal silicon dioxide, hypromellose, lactose, and magnesium stearate. In addition, the 1 mg and 3 mg tablets contain D & C yellow No. 10 and the 2 mg and 3 mg tablets contain FD&C blue No. 2. Alprazolam XR Structural Formula

Ambrisentan tablets contain ambrisentan, an endothelin receptor antagonist. The chemical name of ambrisentan is (+)-(2 S )-2-[(4,6-dimethylpyrimidin-2-yl)oxy]-3-methoxy-3,3-diphenylpropanoic acid. It has a molecular formula of C 22 H 22 N 2 O 4 and a molecular weight of 378.42 and has the following structural formula: Figure 1 Ambrisentan Structural Formula Ambrisentan is a white to off-white powder. It is a carboxylic acid with a pKa of 4.0. Ambrisentan is practically insoluble in water and in aqueous solutions at low pH. Solubility increases in aqueous solutions at higher pH. In the solid state ambrisentan is very stable, is not hygroscopic, and is not light sensitive. Ambrisentan tablets are available as 5 mg and 10 mg film-coated tablets for once daily oral administration. The tablets include the following inactive ingredients: anhydrous lactose, croscarmellose sodium, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, talc and titanium dioxide. Each round, pink ambrisentan tablet contains 5 mg of ambrisentan. Each capsule shaped, pink ambrisentan tablet contains 10 mg of ambrisentan. Ambrisentan tablets are unscored. Ambrisentan Structural Formula

Amlodipine and atorvastatin tablets, USP combine the calcium channel blocker amlodipine besylate with the HMG-CoA-reductase inhibitor atorvastatin calcium. Amlodipine besylate is chemically described as 3-ethyl 5-methyl (4 RS )-2-[(2-aminoethoxy) methyl]-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate benzenesulfonate. Its emperical formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S. Atorvastatin calcium is chemically described as Calcium ( βR , δR )-2-( p -fluorophenyl)- β , δ -dihydroxy-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)pyrrole-1-heptanoate (1:2), trihydrate. Its emperical formula is C 66 H 68 CaF 2 N 4 O 10 •3H 2 O. The structural formulae for amlodipine besylate and atorvastatin calcium are shown below. Amlodipine and atorvastatin tablets contain amlodipine besylate USP, a white or almost white powder, and atorvastatin calcium USP, a white to off-white crystalline powder. Amlodipine besylate has a molecular weight of 567.1 and atorvastatin calcium has a molecular weight of 1209.42. Amlodipine besylate is slightly soluble in water and sparingly soluble in ethanol. Atorvastatin calcium is insoluble in aqueous solutions of pH 4 and below. Atorvastatin calcium is very slightly soluble in distilled water, pH 7.4 phosphate buffer, and acetonitrile; slightly soluble in ethanol; and freely soluble in methanol. Amlodipine and atorvastatin tablets are available as film-coated tablets containing: • 5 mg amlodipine equivalent to 6.94 mg amlodipine besylate and 10 mg atorvastatin equivalent to 10.844 mg atorvastatin calcium. • 5 mg amlodipine equivalent to 6.94 mg amlodipine besylate and 20 mg atorvastatin equivalent to 21.688 mg atorvastatin calcium. • 5 mg amlodipine equivalent to 6.94 mg amlodipine besylate and 40 mg atorvastatin equivalent to 43.376 mg atorvastatin calcium. • 5 mg amlodipine equivalent to 6.94 mg amlodipine besylate and 80 mg atorvastatin equivalent to 86.751 mg atorvastatin calcium. • 10 mg amlodipine equivalent to 13.88 mg amlodipine besylate and 10 mg atorvastatin equivalent to 10.844 mg atorvastatin calcium. • 10 mg amlodipine equivalent to 13.88 mg amlodipine besylate and 20 mg atorvastatin equivalent to 21.688 mg atorvastatin calcium. • 10 mg amlodipine equivalent to 13.88 mg amlodipine besylate and 40 mg atorvastatin equivalent to 43.376 mg atorvastatin calcium. • 10 mg amlodipine equivalent to 13.88 mg amlodipine besylate and 80 mg atorvastatin equivalent to 86.751 mg atorvastatin calcium. Each film-coated tablet also contains colloidal silicon dioxide, croscarmellose sodium, hydroxypropyl cellulose, L-arginine, lecithin, magnesium stearate, microcrystalline cellulose, polyvinyl alcohol, pregelatinized starch (corn), sodium carbonate anhydrous, talc, titanium dioxide and xanthan gum. The 10 mg/10 mg, 10 mg/20 mg, 10 mg/40 mg and 10 mg/80 mg tablets also contain FD&C Blue No. 2 Aluminum Lake. Atorvastatin Calcium Meets USP Organic Impurities Procedure 2. Amlodipine Besylate and Atorvastatin Calcium Structural Formulae

Amlodipine and valsartan tablets, USP are a fixed combination of amlodipine and valsartan. Amlodipine and valsartan tablets contain the besylate salt of amlodipine, a dihydropyridine calcium-channel blocker (CCB). Amlodipine besylate, USP is a white or almost white powder, slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate’s chemical name is 3-ethyl-5-methyl (4 RS )-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate benzenesulfonate; its structural formula is: Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S and its molecular weight is 567.1. Valsartan is a nonpeptide, orally active, and specific angiotensin II antagonist acting on the AT 1 receptor subtype. Valsartan, USP is a white to almost white amorphous powder, soluble in ethanol and methanol and slightly soluble in water. Valsartan’s chemical name is N -[ p -( o -1 H -tetrazol-5-ylphenyl)benzyl]- N -valeryl- L -valine; its structural formula is: Its molecular formula is C 24 H 29 N 5 O 3 and its molecular weight is 435.52. Amlodipine and valsartan tablets are formulated in 4 strengths for oral administration with a combination of amlodipine besylate (6.94 mg or 13.88 mg, equivalent to 5 mg or 10 mg of amlodipine respectively), with 160 mg, or 320 mg of valsartan providing for the following available combinations: 5/160 mg, 10/160 mg, 5/320 mg, and 10/320 mg. The inactive ingredients for all strengths of the tablets are colloidal silicon dioxide, crospovidone, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, red iron oxide, sodium starch glycolate (potato), talc, titanium dioxide and yellow iron oxide. Meets USP Dissolution Test 3. Amlodipine Besylate Structural Formula Valsartan Structural Formula

Isotretinoin, USP a retinoid, is available as Amnesteem (isotretinoin capsules, USP) in 10 mg, 20 mg, 30 mg and 40 mg soft gelatin capsules for oral administration. Each capsule contains butylhydroxyanisole, gelatin, glycerol, hydrogenated partially vegetable oil, medium chain triglycerides, sodium edetate, soy lecithin, soybean oil and yellow beeswax. The 10 mg, 20 mg, and 40 mg capsules also contain red iron oxide in glycerin, and the 20 mg, 30 mg and 40 mg capsules also contain titanium dioxide in glycerin and yellow iron oxide in glycerin. The black imprinting ink contains ammonium hydroxide, black iron oxide, polyethylene glycol, propylene glycol and polyvinyl acetate phthalate. Chemically, isotretinoin is 13- cis -retinoic acid and is related to both retinoic acid and retinol (vitamin A). It is a yellow to orange crystalline powder with a molecular weight of 300.44. The structural formula is: Meets USP Dissolution Test 4. Isotretinoin Structural Formula

Armodafinil tablets are a wakefulness-promoting agent for oral administration. Armodafinil is the R-enantiomer of modafinil which is a 1:1 mixture of the R- and S-enantiomers. The chemical name for armodafinil is R-(-)-2-[(Diphenylmethyl)sulfinyl]acetamide. The molecular formula is C 15 H 15 NO 2 S and the molecular weight is 273.35. The chemical structure is: Armodafinil is a white to off-white powder that is slightly soluble in water, sparingly soluble in acetone, and soluble in methanol. Armodafinil tablets contain 50, 150, or 250 mg of armodafinil and the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, lactose monohydrate, magnesium stearate and povidone. Armodafinil Structural Formula

Atenolol, USP, a synthetic, beta 1 -selective (cardioselective) adrenoreceptor blocking agent, may be chemically described as Benzeneacetamide, 4-[2-hydroxy-3-[(1-methylethyl)amino] propoxy]-. The molecular and structural formulas are: C 14 H 22 N 2 O 3 Atenolol (free base) has a molecular weight of 266.34. It is a relatively polar hydrophilic compound with a water solubility of 26.5 mg/mL at 37°C and a log partition coefficient (octanol/water) of 0.23. It is freely soluble in 1N HCl (300 mg/mL at 25°C) and less soluble in chloroform (3 mg/mL at 25°C). Atenolol tablets are available as 25 mg, 50 mg and 100 mg tablets for oral administration. Inactive Ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate and sodium starch glycolate (potato). Atenolol Structural Formula

Atovaquone and proguanil hydrochloride tablets (adult strength) and atovaquone and proguanil hydrochloride pediatric tablets, for oral administration, contain a fixed-dose combination of the antimalarial agents atovaquone and proguanil hydrochloride. The chemical name of atovaquone is 2-[ trans -4-( p -Chlorophenyl)cyclohexyl]-3-hydroxy-1,4-naphthoquinone. Atovaquone, USP is a yellow powder that is practically insoluble in water. It has a molecular weight of 366.84 and the molecular formula C 22 H 19 ClO 3 . The compound has the following structural formula: The chemical name of proguanil hydrochloride is 1-(4-chlorophenyl)-5-(1-methylethyl)biguanide hydrochloride. Proguanil hydrochloride, USP is a white or almost white crystalline powder that is sparingly soluble in water. It has a molecular weight of 290.19 and the molecular formula C 11 H 16 ClN 5 •HCl. The compound has the following structural formula: Each atovaquone and proguanil hydrochloride tablet (adult strength) contains 250 mg of atovaquone and 100 mg of proguanil hydrochloride and each atovaquone and proguanil hydrochloride pediatric tablet contains 62.5 mg of atovaquone and 25 mg of proguanil hydrochloride. The inactive ingredients in both tablets are black iron oxide, crospovidone, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, poloxamer 188, polyethylene glycol, povidone, red iron oxide, titanium dioxide and yellow iron oxide. Atovaquone Structural Formula Proguanil Hydrochloride Structural Formula

Azelastine hydrochloride and fluticasone propionate nasal spray is formulated as a white, uniform metered-spray suspension for nasal administration. It is a fixed dose combination product containing an antihistamine (H 1 receptor antagonist) and a corticosteroid as active ingredients. Azelastine hydrochloride active ingredient occurs as a white, odorless, crystalline powder with a bitter taste. It has a molecular weight of 418.37. It is sparingly soluble in water, methanol, and propylene glycol and slightly soluble in ethanol, octanol, and glycerin. It has a melting point of 225°C and the pH of 5.2. Its chemical name is (±)-1-(2H)-phthalazinone,4-[(4-chlorophenyl) methyl]-2-(hexahydro-1-methyl-1H-azepin-4-yl)-, monohydrochloride. Its molecular formula is C 22 H 24 ClN 3 O•HCl with the following chemical structure: Fluticasone propionate active ingredient is a white powder with a melting point of 273°C, a molecular weight of 500.6, and the empirical formula is C 25 H 31 F 3 O 5 S. It is practically insoluble in water, freely soluble in dimethyl sulfoxide and dimethylformamide, and slightly soluble in methanol and 95% ethanol. Fluticasone propionate is a synthetic corticosteroid having the chemical name S-(fluoromethyl)-6α,9α-difluoro-11β-17-dihydroxy-16α-methyl-3-oxoandrosta-1,4-diene-17β-carbothioate, 17-propionate, and the following chemical structure: Azelastine hydrochloride and fluticasone propionate nasal spray, 137 mcg/50 mcg contains 0.1% solution of azelastine hydrochloride and 0.037% suspension of micronized fluticasone propionate in an isotonic aqueous suspension containing benzalkonium chloride (0.1 mg/g), carboxymethylcellulose sodium, edetate disodium, glycerin, microcrystalline cellulose, phenylethyl alcohol (2.5 mg/g), polysorbate 80, and purified water. It has a pH of approximately 6.0. After priming [see Dosage and Administration (2.2) ] , each metered spray delivers a 0.137 mL mean volume of suspension containing 137 mcg of azelastine hydrochloride (equivalent to 125 mcg of azelastine base) and 50 mcg of fluticasone propionate. The 23 g bottle provides 120 metered sprays, after priming. Azelastine Hydrochloride Structural Formula Fluticasone Propionate Structural Formula

Bepotastine besilate ophthalmic solution, 1.5% is a sterile, topically administered drug for ophthalmic use. Each mL of bepotastine besilate ophthalmic solution contains 15 mg bepotastine besilate. Bepotastine besilate is designated chemically as 4-[(S)-(4-Chlorophenyl)-2-pyridinylmethoxy]-1-piperidinebutanoic acid, benzenesulfonate salt. The chemical structure for bepotastine besilate is: Bepotastine besilate is a white or creamish white crystalline powder. The molecular weight of bepotastine besilate is 547.06 daltons. Bepotastine besilate ophthalmic solution is supplied as a sterile, aqueous 1.5% solution, with a pH of 6.8. The osmolality of bepotastine besilate ophthalmic solution, 1.5% is approximately 290 mOsm/kg. Each mL of bepotastine besilate ophthalmic solution, 1.5% contains: • Active: bepotastine besilate 15 mg (equivalent to 10.7 mg bepotastine) • Preservative: benzalkonium chloride 0.005% • Inactives: monobasic sodium phosphate dihydrate, sodium chloride, sodium hydroxide to adjust pH, and water for injection. Bepotastine Besilate Structural Formula

Bexarotene capsules contain bexarotene, a member of a subclass of retinoids that selectively activate retinoid X receptors (RXRs). These retinoid receptors have biologic activity distinct from that of retinoic acid receptors (RARs). The chemical name of bexarotene is 4-[1-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-naphthalenyl) ethenyl] benzoic acid, and the structural formula is as follow: Bexarotene is an off-white to white powder with a molecular weight of 348.48 and a molecular formula of C 24 H 28 O 2 . It is insoluble in water and slightly soluble in vegetable oils and ethanol, USP. Each bexarotene capsule contains 75 mg of bexarotene for oral administration. It also contains the following inactive ingredients: polyethylene glycol 400, NF, polysorbate 20, NF, povidone, USP, and butylated hydroxyanisole, NF. The capsule shell contains gelatin, NF, water, sorbitol sorbitan solution, NF, glycerin, USP and titanium dioxide, USP. The imprinting ink contains hypromellose, USP, iron oxide black, and polyethylene glycol, USP. Bexarotene Structural Formula

Bisoprolol fumarate and hydrochlorothiazide tablets, USP are indicated for the treatment of hypertension. It combines two antihypertensive agents in a once-daily dosage: a synthetic beta1-selective (cardioselective) adrenoceptor blocking agent (bisoprolol fumarate) and a benzothiadiazine diuretic (hydrochlorothiazide). Bisoprolol fumarate is chemically described as 1-[[α-(2-Isopropoxyethoxy)-4-toly]oxy]-3-(isopropylamino)-2-propanol fumarate (2:1) (salt). It possesses an asymmetric carbon atom in its structure and is provided as a racemic mixture. The S(-) enantiomer is responsible for most of the beta-blocking activity. Its empirical formula is (C 18 H 31 NO 4 ) 2 •C 4 H 4 O 4 and it has a molecular weight of 766.97. Its structural formula is: Bisoprolol fumarate, USP is a white crystalline powder, approximately equally hydrophilic and lipophilic, and readily soluble in water, methanol, ethanol, and chloroform. Hydrochlorothiazide (HCTZ) is 6-Chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide. It is a white, or practically white, practically odorless crystalline powder. It is slightly soluble in water, sparingly soluble in dilute sodium hydroxide solution, freely soluble in n-butylamine and dimethylformamide, sparingly soluble in methanol, and insoluble in ether, chloroform, and dilute mineral acids. Its empirical formula is C 7 H 8 ClN 3 O 4 S 2 and it has a molecular weight of 297.73. Its structural formula is: Each bisoprolol fumarate and hydrochlorothiazide tablet, for oral administration, contains one of the following combinations of bisoprolol fumarate/hydrochlorothiazide: 2.5 mg/6.25 mg, 5 mg/6.25 mg or 10 mg/6.25 mg. Each tablet also contains the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, pregelatinized starch (corn), sodium lauryl sulfate and titanium dioxide. In addition, the 2.5 mg/6.25 mg tablets contain FD&C Yellow No. 6 Aluminum Lake and the 5 mg/6.25 mg tablets contain FD&C Blue No. 2 Aluminum Lake and FD&C Yellow No. 6 Aluminum Lake. Bisoprolol Fumarate Structural Formula Hydrochlorothiazide Structural Formula

BREYNA 80 mcg/4.5 mcg and BREYNA 160 mcg/4.5 mcg each contain micronized budesonide and micronized formoterol fumarate dihydrate for oral inhalation only. Each BREYNA 80 mcg/4.5 mcg and BREYNA 160 mcg/4.5 mcg canister is formulated as a hydrofluoroalkane (HFA 227; 1,1,1,2,3,3,3-heptafluoropropane)-propelled pressurized metered dose inhaler containing 120 actuations [see Dosage Forms and Strengths (3) and How Supplied/Storage and Handling (16) ] . After priming, each actuation meters either 91/5.1 mcg or 181/5.1 mcg from the valve and delivers either 80/4.5 mcg, or 160/4.5 mcg (budesonide micronized/formoterol fumarate dihydrate micronized) from the actuator. The actual amount of drug delivered to the lung may depend on patient factors, such as the coordination between actuation of the device and inspiration through the delivery system. BREYNA also contains povidone K25 USP as a suspending agent and polyethylene glycol 1000 NF as a lubricant. BREYNA should be primed before using for the first time by releasing two test sprays into the air away from the face, shaking well for 5 seconds before each spray. In cases where the inhaler has not been used for more than 7 days or when it has been dropped, prime the inhaler again by shaking well for 5 seconds before each spray and releasing two test sprays into the air away from the face. One active component of BREYNA is budesonide, a corticosteroid designated chemically as (RS)‑11β, 16α, 17,21-Tetrahydroxypregna-1,4-diene-3,20-dione cyclic 16,17-acetal with butyraldehyde. Budesonide is provided as a mixture of two epimers (22R and 22S). The empirical formula of budesonide is C 25 H 34 O 6 and its molecular weight is 430.5. Its structural formula is: Budesonide is a white to off-white, tasteless, odorless powder which is practically insoluble in water and in heptane, sparingly soluble in ethanol, and freely soluble in chloroform. Its partition coefficient between octanol and water at pH 7.4 is 1.6 x 10 3 . The other active component of BREYNA is formoterol fumarate dihydrate, a selective beta 2 -agonist designated chemically as (R*,R*)-(±)-N-[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide, (E)-2-butendioate(2:1), dihydrate. The empirical formula of formoterol is C 42 H 56 N 4 O 14 and its molecular weight is 840.9. Its structural formula is: Formoterol fumarate dihydrate is a powder which is slightly soluble in water. Its octanol-water partition coefficient at pH 7.4 is 2.6. The pKa of formoterol fumarate dihydrate at 25°C is 7.9 for the phenolic group and 9.2 for the amino group. Budesonide Structural Formula Formoterol Fumarate Dihydrate Structrual Formula

Bromocriptine mesylate, USP is an ergot derivative with potent dopamine receptor agonist activity. Each bromocriptine mesylate capsule for oral administration contains 5 mg bromocriptine (as the mesylate). Bromocriptine mesylate is chemically designated as 2-Bromoergocryptine monomethanesulfonate (salt). The structural formula is: The active ingredient in bromocriptine mesylate capsules, USP is bromocriptine mesylate, USP. The inactive ingredients are as follows: anhydrous lactose, black iron oxide, D&C Yellow No. 10 Aluminum Lake, gelatin, magnesium stearate, maleic acid, pregelatinized starch (corn), red iron oxide, sodium lauryl sulfate, titanium dioxide and yellow iron oxide. 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, n-butyl alcohol, propylene glycol, SDA 3A alcohol, SD-45 alcohol and shellac glaze. Bromocriptine Mesylate Structural Formula

Budesonide extended-release tablets, for oral administration, contain budesonide, a synthetic corticosteroid, as the active ingredient. Budesonide is designated chemically as (R,S)-11ß,16α,17,21-tetrahydroxypregna-1,4-diene-3,20-dionecyclic-16,17-acetal with butyraldehyde. Budesonide is provided as a mixture of two epimers (22R and 22S). The empirical formula of budesonide is C 25 H 34 O 6 and its molecular weight is 430.53. Its structural formula is: Budesonide, USP is a white or almost white crystalline odorless powder that is practically insoluble in water, sparingly soluble in alcohol, and freely soluble in chloroform. Budesonide, a delayed and extended-release tablet, is coated with a polymer film, which breaks down at or above pH 7. The tablet core contains budesonide with polymers that provide for extended release of budesonide. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, methacrylic acid copolymer type A and type B, microcrystalline cellulose, polyethylene glycol, polydextrose, talc, titanium dioxide, triacetin and triethyl citrate. In addition, the black imprinting ink contains black iron oxide, hypromellose and propylene glycol. Budesonide Structural Formula

Buprenorphine and naloxone sublingual film is an orange film, printed with white ink identifying the product and strength. It contains buprenorphine HCl, a mu-opioid receptor partial agonist, and a kappa-opioid receptor antagonist, and naloxone HCl dihydrate, an opioid antagonist, at a ratio of 4:1 (ratio of free bases). It is intended for sublingual or buccal administration and is available in four dosage strengths, 2 mg buprenorphine with 0.5 mg naloxone, 4 mg buprenorphine with 1 mg naloxone, 8 mg buprenorphine with 2 mg naloxone and 12 mg buprenorphine with 3 mg naloxone. Each film also contains acesulfame potassium, citric acid anhydrous, FD&C Yellow No. 6, hypromellose, lemon-lime flavor, maltitol, polyethylene glycol, polyethylene oxide and trisodium citrate dihydrate. In addition, the white imprinting ink contains hypromellose and titanium dioxide. Chemically, buprenorphine HCl is 6,14-Ethenomorphinan-7-methanol, 17-(cyclopropyl-methyl)-α-(1,1-dimethylethyl)-4,5-epoxy-18,19-dihydro-3-hydroxy-6-methoxy-α-methyl-, hydrochloride, [5α,7α(S)]-. It has the following chemical structure: Buprenorphine HCl, USP has the molecular formula C 29 H 41 NO 4 • HCl and the molecular weight is 504.1 g/mol. It is a white or off-white crystalline powder, sparingly soluble in water, freely soluble in methanol, soluble in alcohol, and practically insoluble in cyclohexane. Chemically, naloxone HCl dihydrate is 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride dihydrate. It has the following chemical structure: Naloxone contains four chiral centers (*) Naloxone hydrochloride, USP dihydrate has the molecular formula C 19 H 21 NO 4 • HCl • 2H 2 O and the molecular weight is 399.9 g/mol. It is a white to slightly off-white powder and is freely soluble in water, soluble in alcohol, and practically insoluble in toluene and ether. Buprenorphine Hydrochloride Structrual Formula Naloxone Hydrochloride Structural Formula

Buspirone hydrochloride tablets, USP are an antianxiety agent that are not chemically or pharmacologically related to the benzodiazepines, barbiturates, or other sedative/anxiolytic drugs. Buspirone hydrochloride, USP is a white crystalline, water soluble compound with a molecular weight of 422.0. Chemically, buspirone hydrochloride is 8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-dione monohydrochloride. The molecular formula C 21 H 31 N 5 O 2 •HCl is represented by the following structural formula: Buspirone hydrochloride tablets are supplied as tablets for oral administration containing 5 mg, 7.5 mg, 10 mg, 15 mg or 30 mg of buspirone hydrochloride, USP (equivalent to 4.6 mg, 6.9 mg, 9.1 mg, 13.7 mg, and 27.4 mg of buspirone free base, respectively). The 5 mg and 10 mg tablets are scored so they can be bisected. Thus, the 5 mg tablet can also provide a 2.5 mg dose, and the 10 mg tablet can provide a 5 mg dose. The 15 mg and 30 mg tablets are provided in a multi-scored tablet design. These tablets are scored so they can be either bisected or trisected. Thus, a single 15 mg tablet can provide the following doses: 15 mg (entire tablet), 10 mg (two thirds of a tablet), 7.5 mg (one half of a tablet), or 5 mg (one third of a tablet). A single 30 mg tablet can provide the following doses: 30 mg (entire tablet), 20 mg (two thirds of a tablet), 15 mg (one half of a tablet), or 10 mg (one third of a tablet). Buspirone hydrochloride tablets contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, and sodium starch glycolate (potato). Structural Formula

Cabergoline is an ergot derivative and dopamine receptor agonist. The chemical name for cabergoline is 1-[(6-allylergolin-8ß-yl)-carbonyl]-1-[3-(dimethylamino) propyl]-3-ethylurea. Its empirical formula is C 26 H 37 N 5 O 2 , and its molecular weight is 451.62. The structural formula is as follows Cabergoline is a white powder soluble in ethyl alcohol, chloroform, and N, N-dimethylformamide (DMF); slightly soluble in 0.1N hydrochloric acid; very slightly soluble in n-hexane; and insoluble in water. CABERGOLINE tablets, for oral administration, contain 0.5 mg of cabergoline and the inactive ingredients of leucine, USP, and lactose, NF. Structural formula

Candesartan cilexetil tablets USP, a prodrug, are hydrolyzed to candesartan during absorption from the gastrointestinal tract. Candesartan is a selective AT 1 subtype angiotensin II receptor antagonist. Candesartan cilexetil, a nonpeptide, is chemically described as (±)2-Ethoxy-1-[[2’-(1 H -tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1 H -benzimidazole-7-carboxylic acid-1-[[(cyclohexyloxy)carbonyl]oxy]ethyl ester. Its molecular formula is C 33 H 34 N 6 O 6 , and its structural formula is: Candesartan cilexetil, USP is a white or off-white powder with a molecular weight of 610.66. It is practically insoluble in water and sparingly soluble in methanol. Candesartan cilexetil is a racemic mixture containing one chiral center at the cyclohexyloxycarbonyloxy ethyl ester group. Following oral administration, candesartan cilexetil undergoes hydrolysis at the ester link to form the active drug, candesartan, which is achiral. Candesartan cilexetil is available for oral use as tablets containing either 4 mg, 8 mg, 16 mg, or 32 mg of candesartan cilexetil and the following inactive ingredients: carboxymethylcellulose calcium, corn starch, glyceryl stearate, hydroxypropyl cellulose, lactose monohydrate and magnesium stearate. The 8 mg, 16 mg and 32 mg tablets also contain red iron oxide. Candesartan Cilexetil Structural Formula

Candesartan cilexetil and hydrochlorothiazide tablets, USP combine an angiotensin II receptor (type AT 1 ) antagonist and a diuretic, hydrochlorothiazide. Candesartan cilexetil, a nonpeptide, is chemically described as (±)2-Ethoxy-1-[[2’-(1 H -tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1 H -benzimidazole-7-carboxylic acid-1-[[(cyclohexyloxy)carbonyl]oxy]ethyl ester. Its molecular formula is C 33 H 34 N 6 O 6 , and its structural formula is: Candesartan cilexetil, USP is a white to off-white powder with a molecular weight of 610.66. It is practically insoluble in water and sparingly soluble in methanol. Candesartan cilexetil is a racemic mixture containing one chiral center at the cyclohexyloxycarbonyloxy ethyl ester group. Following oral administration, candesartan cilexetil undergoes hydrolysis at the ester link to form the active drug, candesartan, which is achiral. Hydrochlorothiazide is 2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3,4-dihydro-,1,1-dioxide. Its molecular formula is C 7 H 8 ClN 3 O 4 S 2 and its structural formula is: Hydrochlorothiazide, USP is a white, or practically white, practically odorless crystalline powder with a molecular weight of 297.7, which is slightly soluble in water, but freely soluble in sodium hydroxide solution. Candesartan cilexetil and hydrochlorothiazide tablets are available for oral administration in three tablet strengths of candesartan cilexetil and hydrochlorothiazide. Candesartan cilexetil and hydrochlorothiazide tablets contain 16 mg or 32 mg of candesartan cilexetil and 12.5 mg or 25 mg of hydrochlorothiazide providing for the following available combinations: 16 mg/12.5 mg, 32 mg/12.5 mg or 32 mg/25 mg. The inactive ingredients of the tablets are carboxymethylcellulose calcium, corn starch, glyceryl stearate, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate and yellow iron oxide. The 16 mg/12.5 mg tablet and 32 mg/25 mg tablet also contain red iron oxide as a colorant. Candesartan Cilexetil Stuctural Formula Hydrochlorothiazide Structural Formula

Carbidopa and Levodopa Tablets, USP are a combination of carbidopa and levodopa for the treatment of Parkinson's disease and syndrome. Carbidopa USP, an inhibitor of aromatic amino acid decarboxylation, is a white to creamy white powder, slightly soluble in water, with a molecular weight of 244.2. It is designated chemically as (-)-L-α-Hydrazino-3,4-dihydroxy-α-methylhydrocinnamic acid monohydrate. Its molecular formula is C 10 H 14 N 2 O 4 •H 2 O and its structural formula is: Tablet content is expressed in terms of anhydrous carbidopa which has a molecular weight of 226.2. Levodopa USP, an aromatic amino acid, is a white to off-white crystalline powder, slightly soluble in water, with a molecular weight of 197.2. It is designated chemically as (-)-3-(3,4-Dihydroxyphenyl)-L-alanine. Its molecular formula is C 9 H 11 NO 4 and its structural formula is: Carbidopa and Levodopa Tablets, USP are supplied as tablets in three strengths: Carbidopa and Levodopa Tablets USP, 10 mg/100 mg contains 10 mg of carbidopa and 100 mg of levodopa. Carbidopa and Levodopa Tablets USP, 25 mg/100 mg contains 25 mg of carbidopa and 100 mg of levodopa. Carbidopa and Levodopa Tablets USP, 25 mg/250 mg contains 25 mg of carbidopa and 250 mg of levodopa. Inactive ingredients are crospovidone, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose and pregelatinized starch (corn). In addition, the 10 mg/100 mg and 25 mg/250 mg tablets contain FD&C Blue No. 2 Aluminum Lake and the 25 mg/100 mg tablets contain D&C Yellow No. 10 Aluminum Lake. Carbidopa Structural Formula Levodopa Structural Formula

Carbidopa and levodopa extended-release tablets, USP are an extended-release combination of carbidopa and levodopa for the treatment of Parkinson’s disease and syndrome. Carbidopa, USP, an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 244.25. It is designated chemically as (-)-L-α-Hydrazino-3,4-dihydroxy-α-methylhydrocinnamic acid monohydrate. Its molecular formula is C 10 H 14 N 2 O 4 •H 2 O and its structural formula is: Tablet content is expressed in terms of anhydrous carbidopa, which has a molecular weight of 226.23. Levodopa, USP, an aromatic amino acid, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 197.19. It is designated chemically as (-)-3-(3,4-Dihydroxyphenyl)-L-alanine. Its molecular formula is C 9 H 11 NO 4 and its structural formula is: Each extended-release tablet, for oral administration, contains either 25 mg of carbidopa and 100 mg of levodopa or 50 mg of carbidopa and 200 mg of levodopa. In addition, each tablet contains the following inactive ingredients: FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, hydroxypropyl cellulose, hypromellose, and magnesium stearate. The 25 mg/100 mg tablets are purple, oval, unscored tablets debossed with MYLAN on one side of the tablet and 88 on the other side of the tablet. The 50 mg/200 mg tablets are purple, oval, scored tablets debossed with MYLAN on one side of the tablet and 9 to the left of the score and 4 to the right of the score on the other side of the tablet. Carbidopa and levodopa extended-release tablets are designed in a drug delivery system that controls the release of carbidopa and levodopa as the tablets slowly erode. The 25 mg/100 mg carbidopa and levodopa extended-release tablet is available to facilitate titration and as an alternative to the half-tablet of 50 mg/200 mg carbidopa and levodopa extended-release. FDA approved dissolution test specifications differ from USP. Carbidopa Structural Formula Levodopa Structural Formula

Carisoprodol tablets are available as 250 mg round, white tablets. Carisoprodol is a white, crystalline powder, having a mild, characteristic odor and a bitter taste. It is slightly soluble in water; freely soluble in alcohol, in chloroform, and in acetone; and its solubility is practically independent of pH. Carisoprodol is present as a racemic mixture. Chemically, carisoprodol is (±)-2-Methyl-2-propyl-1,3-propanediol carbamate isopropylcarbamate and the molecular formula is C 12 H 24 N 2 O 4 , with a molecular weight of 260.33. The structural formula is: Other ingredients in the carisoprodol drug product include alginic acid, magnesium stearate, potassium sorbate, starch, and tribasic calcium phosphate. Carisoprodol Structural Formula

Uses temporarily relieves these symptoms due to hay fever or other upper respiratory allergies: • runny nose • sneezing • itchy, watery eyes • itching of the nose or throat

Chlordiazepoxide and amitriptyline hydrochloride tablets, USP combine for oral administration, chlordiazepoxide, an agent for the relief of anxiety and tension, and amitriptyline, an antidepressant. Chlordiazepoxide, USP is a benzodiazepine with the formula 7-chloro-2-(methylamino)-5-phenyl-3 H -1,4-benzodiazepine-4-oxide. It is a yellow crystalline powder and is insoluble in water. The chemical structure is: Amitriptyline hydrochloride, USP is a dibenzocycloheptadiene derivative. The formula is 10,11-dihydro- N,N -dimethyl-5 H -dibenzo[a,d]cycloheptene-Δ 5 ,γ-propylamine hydrochloride. It is a white or practically white crystalline powder that is freely soluble in water. The chemical structure is: Each film-coated tablet for oral administration contains 5 mg of chlordiazepoxide and 14 mg of amitriptyline hydrochloride equivalent to 12.5 mg of amitriptyline or 10 mg of chlordiazepoxide and 27.98 mg of amitriptyline hydrochloride equivalent to 25 mg of amitriptyline. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hydroxypropyl cellulose, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, pregelatinized starch (corn), sodium lauryl sulfate and titanium dioxide. In addition, the 5 mg/12.5 mg tablets also contain D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake and FD&C Yellow No. 6 Aluminum Lake and the 10 mg/25 mg tablets also contain polydextrose and triacetin. Chlordiazepoxide Structural Formula Amitriptyline Hydrochloride Structural Formula