xlcare pharmaceuticals, inc. - Medication Listings

Levothyroxine sodium tablets, USP contain synthetic crystalline L-3,3',5,5'-tetraiodothyronine sodium salt. Synthetic T4 is identical in chemical structure to the T 4 produced in the human thyroid gland. Levothyroxine (T4) sodium has an empirical formula of C 15 H 10 I 4 NNaO 4 • x H 2 O, molecular weight of 798.86 g/mol (anhydrous), and structural formula as shown: Levothyroxine sodium tablets for oral administration are available 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, microcrystalline cellulose, sodium starch glycolate, povidone, colloidal silicon dioxide, magnesium stearate and color additive(s). Table 6 provides a listing of the color additives by tablet strength: FDA approved Dissolution test differs from the USP dissolution test. FDA approved Assay test differs from the USP assay test. Structure Table6

Lisinopril is an oral long-acting angiotensin converting enzyme (ACE) inhibitor. Lisinopril, a synthetic peptide derivative, is chemically described as 1-[N2-[(S)-1-Carboxy-3-phenylpropyl]-L-lysyl]-L-proline dihydrate. Its empirical formula is C 21 H 31 N 3 O 5 2H 2 O and its structural formula is: Lisinopril is a white crystalline powder, with a molecular weight of 441.52. It is soluble in water, sparingly soluble in methanol, practically insoluble in alcohol, in acetone, in acetonitrile and in chloroform. Lisinopril is supplied as 2.5 mg, 5 mg, 10 mg, 20 mg, 30 mg and 40 mg tablets for oral administration. Inactive Ingredients: Colloidal silicon dioxide, dibasic calcium phosphate dihydrate, magnesium stearate, mannitol and pregelatinized starch (maize). In addition 5 mg, 10 mg, 20 mg and 30 mg tablets contain ferric oxide red, and 40 mg tablets contain ferric oxide yellow. structure

Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-l-[(2’-(lH-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-lH-imidazole-5-methanol mono potassium salt. Its molecular formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium, USP is a white to off-white powder with a molecular weight of 461.01. It is freely soluble in water and slightly soluble in acetonitrile. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium, USP and the following inactive ingredients: crospovidone, lactose monohydrate, low substituted hydroxy propyl cellulose, magnesium stearate, microcrystalline cellulose and pregelatinized starch. The tablets are coated with Opadry White which contains carnauba wax, hypromellose and titanium dioxide. Losartan potassium tablets USP, 25 mg, 50 mg and 100 mg tablets contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. The botanical source for pregelatinized starch is corn starch. struct

Montelukast sodium USP, the active ingredient in montelukast sodium tablets, USP is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium USP is described chemically as [R-(E)]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl] cyclopropaneacetic acid, monosodium salt. The empirical formula is C 35 H 35 CINNaO 3 S, and its molecular weight is 608.17. The structural formula is: Montelukast sodium USP is a hygroscopic, optically active, white or almost white powder. Montelukast sodium USP is freely soluble in water and methylene chloride, freely soluble to very soluble in alcohol. Each 10 mg film-coated montelukast sodium tablet USP contains 10.4 mg montelukast sodium USP, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, mannitol and microcrystalline cellulose. The tablets are coated with opadry yellow which contains carnauba wax, hydroxypropyl cellulose, hypromellose, red iron oxide, titanium dioxide and yellow iron oxide. Figure1.jpg

The active ingredient in gabapentin capsules is gabapentin, USP which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin, USP is a white to off-white crystalline solid with a pK a1 of 3.7 and a pK a2 of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is –1.25. Each gabapentin capsule contains 100 mg, 300 mg, or 400 mg of gabapentin, USP and the following inactive ingredients: mannitol, pre-gelatinized starch and talc. The 100 mg capsule shell contains titanium dioxide, gelatin and sodium lauryl sulfate. The 300 mg and 400 mg capsule shell contains FD&C Red 40, D&C Yellow 10, titanium dioxide, gelatin and sodium lauryl sulfate. The ink ingredients common for all strengths are shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide and potassium hydroxide. Structure

The active ingredient in gabapentin tablets is gabapentin, USP which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin, USP is a white to off-white crystalline solid with a pK a1 of 3.7 and a pK a2 of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is –1.25. Each gabapentin tablet contains 600 mg or 800 mg of gabapentin, USP and the following inactive ingredients: mannitol, hydroxypropyl cellulose, crospovidone, talc, silicon dioxide, glyceryl dibehenate, and magnesium stearate. struc

The active ingredient in Pantoprazole Sodium Delayed-Release Tablets, USP, a PPI, is a substituted benzimidazole, 5-(Difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridyl)methyl] sulfinyl]benzimidazole, sodium salt, sesquihydrate, a compound that inhibits gastric acid secretion. Its empirical formula is C 16 H 14 F 2 N 3 NaO 4 S . 1.5 H 2 O, with a molecular weight of 432.4. The structural formula is: Pantoprazole sodium sesquihydrate, USP is a white to off-white powder. Pantoprazole sodium sesquihydrate, USP is freely soluble in water, in methanol, in dehydrated alcohol, practically insoluble in hexane and dichloromethane. The stability of the compound in aqueous solution is pH-dependent. The rate of degradation increases with decreasing pH. At ambient temperature, the degradation half-life is approximately 2.8 hours at pH 5 and approximately 220 hours at pH 7.8. Pantoprazole Sodium is supplied as a Delayed-Release Tablet, available in two strengths (20 mg and 40 mg). Each Pantoprazole Sodium Delayed-Release Tablet, USP contains 45.11 mg or 22.55 mg of pantoprazole sodium sesquihydrate, USP (equivalent to 40 mg or 20 mg pantoprazole, respectively) with the following inactive ingredients: calcium stearate, carnauba wax, ferric oxide yellow, hydroxy propyl cellulose, hypromellose, lactose monohydrate, methacrylic acid copolymer, polysorbate 80, propylene glycol, sodium carbonate anhydrous, sodium lauryl sulfate, titanium dioxide and triethyl citrate. The tablets are imprinted with opacode black containing ammonium hydroxide, iron oxide black, propylene glycol and shellac. Pantoprazole Sodium Delayed-Release Tablets, (40 mg and 20 mg) complies with USP dissolution test 2. structure.jpg

Sertraline hydrochloride tablets contains sertraline hydrochloride, an SSRI. Sertraline hydrochloride has a molecular weight of 342.7 and has the following chemical name: (1S,4S)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-N-methyl-1-naphthylamine hydrochloride. The empirical formula C 17 H 17 Cl 2 N·HCl is represented by the following structural formula: Sertraline hydrochloride is a white or off white crystalline powder that is sparingly soluble in methanol, dimethyl formamide and absolute alcohol; slightly soluble in water, acetone and isopropanol. Sertraline hydrochloride tablets, USP for oral administration contain 28.0 mg, 56.0 mg and 111.9 mg sertraline hydrochloride equivalent to 25, 50 and 100 mg of sertraline and the following inactive ingredients: Microcrystalline cellulose, colloidal silicon dioxide, hydroxypropylcellulose, sodium starch glycolate, magnesium stearate, titanium dioxide, hypromellose, polyethylene glycol and polysorbate 80. The 25 mg and 50 mg strength also contains FD&C blue no. 2. The 25 mg strength also contains D&C yellow no. 10 aluminum lake. 100 mg strength also contains iron oxide yellow, iron oxide red. structural formula

Sildenafil tablet, phosphodiesterase-5 (PDE-5) inhibitor, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type-5 (PDE-5). Sildenafil is also marketed as VIAGRA® for erectile dysfunction. Sildenafil citrate, USP is designated chemically as 1-[[3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d] pyrimidin-5-yl)-4-ethoxyphenyl] sulfonyl]-4-methylpiperazine citrate and has the following structural formula: Sildenafil citrate, USP is a white to off white crystalline powder slightly soluble in methanol and a molecular weight of 666.70. Sildenafil tablets are formulated as white to off white, film coated, round tablets for oral administration. Each tablet contains sildenafil citrate, USP equivalent to 20 mg of sildenafil. In addition to the active ingredient, sildenafil citrate, USP, each tablet contains the following inactive ingredients: croscarmellose sodium, dibasic calcium phosphate anhydrous, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, titanium dioxide and triacetin. Structure

Sildenafil Tablet, USP an oral therapy for erectile dysfunction, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Sildenafil citrate, USP is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate and has the following structural formula: Sildenafil citrate, USP is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7. Sildenafil tablet, USP is formulated as white, film-coated round-shaped tablets equivalent to 25 mg, 50 mg and 100 mg of sildenafil for oral administration. In addition to the active ingredient, sildenafil citrate, USP each tablet contains the following inactive ingredients: croscarmellose sodium, dibasic calcium phosphate anhydrous, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, titanium dioxide and triacetin. sildenafilstructure

Meloxicam tablets USP are a nonsteroidal anti-inflammatory drug (NSAID). Each tablet contains 7.5 mg or 15 mg meloxicam for oral administration. Meloxicam is chemically designated as 4-Hydroxy-2-methyl- N -(5-methylthiazol-2-yl)-2 H -1,2-benzothiazine-3-carboxamide-1,1-dioxide. The molecular weight is 351.4. Its empirical formula is C 14 H 13 N 3 O 4 S 2 and it has the following structural formula: Meloxicam is a pale yellow powder, practically insoluble in water, soluble in dimethylformamide, very slightly soluble in ethanol. Meloxicam has an apparent partition coefficient (log P) app = 0.1 in n -octanol/buffer pH 7.4. Meloxicam has pKa values of 1.1 and 4.2. Meloxicam is available as a tablet for oral administration containing 7.5 mg or 15 mg meloxicam. The inactive ingredients in meloxicam tablets USP include colloidal silicon dioxide, crospovidone, lactose monohydrate, magnesium stearate, microcrystalline cellulose and sodium citrate dihydrate. structural

Meloxicam Tablets USP are a nonsteroidal anti-inflammatory drug (NSAID). Each tablet contains 7.5 mg or 15 mg meloxicam for oral administration. Meloxicam is chemically designated as 4-hydroxy-2-methyl- N -(5-methyl-2-thiazolyl)-2 H -1,2-benzothiazine-3-carboxamide-1,1-dioxide. The molecular weight is 351.4. Its empirical formula is C 14 H 13 N 3 O 4 S 2 and it has the following structural formula: Meloxicam is a pastel yellow solid, practically insoluble in water, with higher solubility observed in strong acids and bases. It is very slightly soluble in methanol. Meloxicam has an apparent partition coefficient (log P) app = 0.1 in n -octanol/buffer pH 7.4. Meloxicam has pKa values of 1.1 and 4.2. Meloxicam is available as a tablet for oral administration containing 7.5 mg or 15 mg meloxicam. The inactive ingredients in Meloxicam tablets USP include colloidal silicon dioxide, crospovidone, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium citrate dihydrate. Structure

Abacavir sulfate, is a synthetic carbocyclic nucleoside analogue with inhibitory activity against HIV-1. The chemical name of abacavir sulfate is (1S,4R)-4-[2-amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol sulfate (salt) (2:1). Abacavir sulfate, USP 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 670.74 daltons. It has the following structural formula: Abacavir sulfate, USP is a white to off-white powder. Soluble in water, slightly soluble in methanol. Abacavir tablets, USP are for oral administration. Each tablet contains abacavir sulfate, USP equivalent to 300 mg of abacavir as active ingredient and the following inactive ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, sodium starch glycolate. The tablets are coated with opadry yellow which contains hypromellose, iron oxide yellow, polysorbate 80, titanium dioxide and triacetin. In vivo , abacavir sulfate, USP dissociates to its free base, abacavir. Dosages are expressed in terms of abacavir. abacavirstructure1

Allopurinol, USP 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. It is slightly soluble in sodium hydroxide and potassium hydroxide solution, very slightly soluble in water and alcohol, practically insoluble in chloroform and ether. It is a xanthine oxidase inhibitor which is administered orally. Each functionally scored white to off-white round tablet contains 100 mg or 300 mg of allopurinol USP and the inactive ingredients crospovidone, lactose monohydrate, magnesium stearate, corn starch and povidone. allopurinolchemicalstructure

Aripiprazole is a psychotropic drug that is available as aripiprazole tablets. Aripiprazole tablets, USP are chemically designated as 7-[4-[4-(2,3-Dichlorophenyl)-1­piperazinyl]butoxy]-3,4-dihydro-2(1H)-quinolinone. The molecular formula is C 23 H 27 Cl 2 N 3 O 2 , and molecular weight is 448.39. The chemical structure is as follows: Aripiprazole tablets, USP are available in 2 mg, 5 mg, 10 mg, 15 mg, 20 mg, and 30 mg strengths. Inactive ingredients include corn starch, FD&C Blue #2/Indigo Carmine Al, ferric oxide red, ferric oxide yellow, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate and microcrystalline cellulose. FDA approved dissolution test specifications differ from USP Structure.jpg

Aripiprazole is a psychotropic drug that is available as aripiprazole tablets. Aripiprazole tablets, USP are chemically designated as 7-[4-[4-(2,3-Dichlorophenyl)-1­piperazinyl]butoxy]-3,4-dihydro-2(1H)-quinolinone. The empirical formula is C 23 H 27 Cl 2 N 3 O 2 , and molecular weight is 448.39. The chemical structure is as follows: Aripiprazole tablets, USP are available in 2 mg, 5 mg, 10 mg, 15 mg, 20 mg, and 30 mg strengths. Inactive ingredients include corn starch, FD&C Blue #2/Indigo Carmine Al, ferric oxide red, ferric oxide yellow, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate and microcrystalline cellulose. FDA approved dissolution test specifications differ from USP Struct

Baclofen, USP is a muscle relaxant and antispastic. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid, and its structural formula is C 10 H 12 ClNO 2 M.W. 213.66 Baclofen, USP is a white to off-white odorless or practically odorless crystalline powder. It is slightly soluble in water, very slightly soluble in methanol and insoluble in chloroform. Each tablet, for oral administration, contains 5 mg or 10 mg or 20 mg baclofen, USP. In addition, each tablet contains the following inactive ingredients: croscarmellose sodium, lactose monohydrate, microcrystalline cellulose, zinc stearate. beclofenstructure

Benzonatate, a non-narcotic oral antitussive agent, is 2, 5, 8, 11, 14, 17, 20, 23, 26-nonaoxaoctacosan-28-yl p-(butylamino) benzoate; with a molecular weight of 603.7. Each benzonatate capsule USP contains: Benzonatate, USP 100 mg Each benzonatate capsule USP contains: Benzonatate, USP 150 mg Each benzonatate capsule USP contains: Benzonatate, USP 200 mg Benzonatate capsules USP also contain: bloom gelatin, glycerin, purified water, medium chain triglycerides, lecithin, isopropyl alcohol, nitrogen. 100 mg and 200 mg capsules also contain D&C Yellow No. 10. 150 mg capsules also contain FD&C Yellow No. 6 powder. Each capsule also contains black iron oxide, propylene glycol, hypromellose as imprinting ink. struct.

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 244.24. It is designated chemically as (-)-L-α-hydrazino-3, 4-dihydroxy-α-methylhydrocinnamic acid monohydrate. Its empirical 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 226.24. Levodopa, USP an aromatic amino acid, is a white to off-white, crystalline powder, slightly soluble in water, with a molecular weight of 197.19. It is designated chemically as (2S)-2-Amino-3-(3,4-dihydroxyphenyl) propanoic acid. Its empirical formula is C 9 H 11 NO 4 , and its structural formula is: Carbidopa and levodopa is supplied as tablets in three strengths: Carbidopa and levodopa tablets, USP 10 mg/100 mg containing 10 mg of carbidopa USP and 100 mg of levodopa USP. Carbidopa and levodopa tablets, USP 25 mg/100 mg containing 25 mg of carbidopa USP and 100 mg of levodopa USP. Carbidopa and levodopa tablets, USP 25 mg/250 mg containing 25 mg of carbidopa USP and 250 mg of levodopa USP. Inactive ingredients are microcrystalline cellulose, pregelatinized starch (maize), crospovidone, hydroxypropyl cellulose and magnesium stearate. Carbidopa and levodopa tablets, USP 10 mg/100 mg and 25 mg/250 mg also contain FD&C Blue No.2. Carbidopa and levodopa tablets, USP 25 mg/100 mg also contain D&C Yellow No.10. FDA approved dissolution test specifications differ from USP. Carbidopa Structure Levodopa Structure

Cinacalcet tablets contain the hydrochloride salt of the active ingredient cinacalcet, a positive modulator of the calcium sensing receptor. The empirical formula of cinacalcet is C 22 H 22 F 3 N⋅HCl with a molecular mass of 393.87. It has one chiral center having an R-absolute configuration. The R-enantiomer is the more potent enantiomer and has been shown to be responsible for pharmacodynamic activity. The hydrochloride salt of cinacalcet is a white to off-white powder that is freely soluble in methanol and in ethanol. The hydrochloride salt of cinacalcet is described chemically as (R)-N-(3-(3-(trifluoromethyl) phenyl] propyl]-1-(1-naphthyl) ethylamine hydrochloride and has the following structural formula: Cinacalcet tablets are formulated as light-green, oval, biconvex, film coated tablets for oral administration in strengths of 30 mg, 60 mg, and 90 mg of cinacalcet as the free base equivalent (33.064 mg, 66.127 mg and 99.191 mg as the hydrochloride salt, respectively). Inactive Ingredients The following are the inactive ingredients in cinacalcet tablets: crospovidone, magnesium stearate, microcrystalline cellulose, pregelatinized starch and talc. The coating material contains hypromellose, lactose monohydrate, titanium dioxide, triacetin, FD&C blue #2/indigo carmine AL, iron oxide yellow, polyethylene glycol. The botanical source for pregelatinized starch is corn starch. structure

The chemical name for dabigatran etexilate mesylate, a direct thrombin inhibitor, is N-[[2-[[[4-[(hexyloxy)carbonyl]amino]iminomethyl]phenyl]amino]methyl]-1-methyl-1H-benzimidazol-5-yl]carbonyl]-N-2-pyridinyl-β-alanine ethyl ester, methanesulfonate. The empirical formula is C 34 H 41 N 7 O 5 .CH 3 SO 3 H and the molecular weight is 723.86 (mesylate salt), 627.75 (free base). The structural formula is: Dabigatran etexilate mesylate is a yellow-white to yellow color powder. Sparingly soluble in methanol. Dabigatran etexilate capsules are supplied in 75 mg, and 150 mg strengths for oral administration. Each capsule contains dabigatran etexilate mesylate as the active ingredient: 150 mg dabigatran etexilate (equivalent to 172.95 mg dabigatran etexilate mesylate), or 75 mg dabigatran etexilate (equivalent to 86.48 mg dabigatran etexilate mesylate) along with the following inactive ingredients: hydroxypropyl cellulose, hypromellose, sugar spheres (sucrose and corn starch), talc and tartaric acid. The capsule shell is composed of iron oxide red, iron oxide yellow, hypromellose and titanium dioxide. The capsules are printed with black ink containing black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. structural

Dutasteride is a synthetic 4-azasteroid compound that is a selective inhibitor of both the type 1 and type 2 isoforms of steroid 5 alpha-reductase, an intracellular enzyme that converts testosterone to DHT. Dutasteride is chemically designated as (5α,17β)-N-{2,5 bis(trifluoromethyl)phenyl}-3-oxo-4-azaandrost-1-ene-17-carboxamide. The empirical formula of dutasteride is C 27 H 30 F 6 N 2 O 2 , representing a molecular weight of 528.5 with the following structural formula: Dutasteride is a white to pale yellow powder with a melting point of 242° to 250°C. It is soluble in ethanol (44 mg/mL), methanol (64 mg/mL), and polyethylene glycol 400 (3 mg/mL), but it is insoluble in water. Each dutasteride capsule, administered orally, contains 0.5 mg of dutasteride dissolved in a mixture of mono-di-glycerides of caprylic/capric acid and butylated hydroxytoluene. The inactive excipients in the capsule shell are ferric oxide (yellow), gelatin (from certified BSE-free bovine sources), glycerin, and titanium dioxide. The capsules are printed with edible black ink containing black iron oxide, hypromellose and propylene glycol. structure

Efavirenz is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz is chemically described as (S)-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Its empirical formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (<10 microgram/mL). Tablets: Efavirenz is available as film-coated tablets for oral administration containing 600 mg of efavirenz USP and the following inactive ingredients: microcrystalline cellulose, sodium lauryl sulfate, croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate. The film coating contains Opadry ® Yellow (hypromellose, titanium dioxide, iron oxide yellow and polyethylene glycol). efavirenz-structure

Eltrombopag tablets contain eltrombopag olamine, a small molecule thrombopoietin (TPO) receptor agonist for oral administration. Eltrombopag olamine is a biphenyl hydrazone. The chemical name for eltrombopag olamine is 3'-{(2Z)-2-[1-(3,4-dimethylphenyl)-3-methyl-5-oxo-1,5-dihydro-4H-pyrazol-4ylidene]hydrazino}-2'-hydroxy-3-biphenylcarboxylic acid, ethanolamine. It has the molecular formula C 25 H 22 N 4 O 4 .C 4 H 14 N 2 O 2 . The molecular weight is 564.27 g/mol for eltrombopag olamine and 442.5 g/mol for eltrombopag free acid. Eltrombopag olamine has the following structural formula: Eltrombopag olamine is very slightly soluble in methanol and dimethyl formamide. Eltrombopag tablets contain eltrombopag olamine in the amount equivalent to 12.5 mg, 25 mg, 50 mg, or 75 mg of eltrombopag free acid. The inactive ingredients of eltrombopag tablets are: Tablet Core: magnesium stearate, mannitol, microcrystalline cellulose, povidone and sodium starch glycolate. Coating: FD&C Blue #2/Indigo carmine aluminum lake (for 25 mg), FD & C Yellow # 6/Sunset Yellow FCF Aluminum lake (for 25 mg), hypromellose, iron oxide yellow (for 75 mg), polyethylene glycol, polysorbate 80 (for 12.5 mg and 75 mg) and titanium dioxide. eltrombopagstructure

The active ingredient in famotidine tablets USP is a histamine-2 (H 2 ) receptor antagonist. Famotidine is N' -(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]propanimidamide. The empirical formula of famotidine is C 8 H 15 N 7 O 2 S 3 and its molecular weight is 337.43. Its structural formula is: Each famotidine tablet for oral administration contains either 20 mg or 40 mg of famotidine USP and the following inactive ingredients: microcrystalline cellulose, pregelatinized starch, silicon dioxide, povidone, magnesium stearate, hypromellose, polyethylene glycol, titanium dioxide and talc. Famotidine is a white to pale yellow crystalline compound that is freely soluble in glacial acetic acid, slightly soluble in methanol, very slightly soluble in water, and practically insoluble in ethanol. struct

Fingolimod is a sphingosine 1-phosphate receptor modulator. Chemically, fingolimod is 2-Amino-2-[2-(4-octyl-phenyl)ethyl]-1, 3-propanediol Hydrochloride. Its structure is shown below: Fingolimod hydrochloride USP is an off-white to white powder that is freely soluble in water and in alcohol. It has a molecular weight of 343.94 g/mol. Fingolimod is provided as 0.5 mg hard gelatin capsules for oral use. Each 0.5 mg capsule contains 0.56 mg of fingolimod hydrochloride USP, equivalent to 0.5 mg of fingolimod. Each fingolimod 0.5 mg capsule contains the following inactive ingredients: black iron oxide, FD & C Blue # 2 Aluminum Lake, gelatin, iron oxide yellow, magnesium stearate, potassium hydroxide, powdered cellulose, propylene glycol, shellac, sodium lauryl sulfate and titanium dioxide. structure

Gemfibrozil, USP is a lipid regulating agent. It is available as tablets for oral administration. Each tablet contains 600 mg gemfibrozil. Each tablet also contains the following inactive ingredients: pregelatinized starch, microcrystalline cellulose, povidone, colloidal silicon dioxide, polysorbate, croscarmellose sodium, calcium stearate, hydroxypropyl cellulose, and talc. The chemical name is 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid, with the following structural formula: The empirical formula is C 15 H 22 O 3 and the molecular weight is 250.35; the solubility in water and acid is 0.0019% and in dilute base it is greater than 1%. The melting point is 58° – 61°C. Gemfibrozil is a white solid which is stable under ordinary conditions. Struct

Hydrocodone bitartrate and acetaminophen, USP is available in tablet form for oral administration. Hydrocodone bitartrate is an opioid analgesic and occurs as fine, white crystals or as a crystalline powder. It is affected by light. The chemical name is 4,5α-epoxy-3-methoxy-17-methylmorphinan-6-one tartrate (1:1) hydrate (2:5). It has the following structural formula: Acetaminophen, 4' -hydroxyacetanilide, a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula: Each Hydrocodone Bitartrate and Acetaminophen Tablet, USP contains: Strength Hydrocodone Bitartrate Acetaminophen 2.5 mg/325 mg 2.5 mg 325 mg 5 mg/325 mg 5 mg 325 mg 7.5 mg/325 mg 7.5 mg 325 mg 10 mg/325 mg 10 mg 325 mg In addition, each tablet contains the following inactive ingredients: microcrystalline cellulose, corn starch, colloidal silicon dioxide, crospovidone, pregelatinized starch, povidone, FD&C Yellow No 6 (for strength 5mg/325 mg), D&C Yellow No 10 (for strength 10 mg/325 mg) and stearic acid. Hydrocodone Bitartrate and Acetaminophen Tablets, USP complies to USP Dissolution Test 1. hydromorphone-apap-struct1 hydromorphone-apap-struct1

Hydrocodone bitartrate and acetaminophen, USP is available in tablet form for oral administration. Hydrocodone bitartrate is an opioid analgesic and occurs as fine, white crystals or as a crystalline powder. It is affected by light. The chemical name is 4,5α-epoxy-3-methoxy-17-methylmorphinan-6-one tartrate (1:1) hydrate (2:5). It has the following structural formula: Acetaminophen, 4' -hydroxyacetanilide, a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula: Each Hydrocodone Bitartrate and Acetaminophen Tablet, USP contains: Strength Hydrocodone Bitartrate Acetaminophen 2.5 mg/325 mg 2.5 mg 325 mg 5 mg/325 mg 5 mg 325 mg 7.5 mg/325 mg 7.5 mg 325 mg 10 mg/325 mg 10 mg 325 mg In addition, each tablet contains the following inactive ingredients: microcrystalline cellulose, corn starch, colloidal silicon dioxide, crospovidone, pregelatinized starch, povidone, and stearic acid. Hydrocodone Bitartrate and Acetaminophen Tablets, USP complies to USP Dissolution Test 1. Hydrocodone Bitartrate- Struct Acetaminophen- Struct

Hydromorphone hydrochloride extended-release tablets are for oral use and contain hydromorphone hydrochloride, an opioid agonist. Hydromorphone hydrochloride USP is 4,5α-epoxy-3-hydroxy-17-methylmorphinan-6-one hydrochloride. Hydromorphone hydrochloride is a white or almost white crystalline powder that is freely soluble in water, very slightly soluble in ethanol (96%), and practically insoluble in methylene chloride. Its empirical formula is C 17 H 19 NO 3 •HCl. The compound has the following structural formula: Hydromorphone hydrochloride extended-release tablets also contains the following inactive ingredients: Polyethylene Oxide, Povidone, butylated hydroxytoluene, Isopropyl Alcohol, Magnesium Stearate, Sodium Chloride, Hydroxypropyl Methyl Cellulose, Ferric Oxide Yellow, Acetone, Cellulose acetate, Polyethylene glycol, hypromellose and titanium dioxide The 8 mg, 12 mg and 16 mg also contains iron oxide yellow and polysorbate. The 32 mg also contains talc, black iron oxide and propylene glycol. Structure

Icosapent ethyl capsules, a lipid-regulating agent, is supplied as either a 0.5 gram or a 1 gram liquid-filled clear, transparent soft gelatin capsules containing clear to light yellow colored solution for oral use. Each icosapent ethyl capsule contains either 0.5 grams of icosapent ethyl (in a 0.5 gram capsule) or 1 gram of icosapent ethyl (in a 1 gram capsule). Icosapent ethyl is an ethyl ester of the omega-3 fatty acid eicosapentaenoic acid (EPA). The empirical formula of icosapent ethyl is C 22 H 34 O 2 and the molecular weight is 330.50. The chemical name for icosapent ethyl is ethyl all-cis-5,8,11,14,17-icosapentaenoate with the following chemical structure: Icosapent ethyl capsules also contain the following inactive ingredients: bloom gelatin, glycerin, alpha tocopherol, medium chain triglycerides, and lecithin. The capsules are imprinted with white imprinting ink containing titanium dioxide, propylene glycol, and hypromellose 2910. structure

Indomethacin capsules, USP are nonsteroidal anti-inflammatory drugs, available as capsules containing 25 mg or 50 mg of indomethacin USP, administered for oral use. The chemical name is 1-(4-chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic acid. The molecular weight is 357.79. Its molecular formula is C 19 H 16 ClNO 4 , and it has the following chemical structure. Indomethacin USP is a white to yellow crystalline powder. It is practically insoluble in water and sparingly soluble in alcohol, in chloroform and in ether. It has a pKa of 4.5 and is stable in neutral or slightly acidic media and decomposes in strong alkali. The inactive ingredients in indomethacin capsules USP, 25 mg or 50 mg include: lactose monohydrate, sodium lauryl sulfate, sodium starch glycolate, colloidal silicon dioxide, magnesium stearate. The hard gelatin shell consists of gelatin, titanium dioxide, FD & C Blue 1, D & C Yellow 10. The capsules are printed with black ink containing black iron oxide E172 dye. indomethacinstructure

The chemical name of lacosamide, the single (R)-enantiomer, is (R)-2-acetamido-N-benzyl-3-methoxypropionamide (IUPAC). Lacosamide is a functionalized amino acid. Its molecular formula is C 13 H 18 N 2 O 3 and its molecular weight is 250.30. The chemical structure is: Lacosamide USP is a white to light yellow powder. It is freely soluble in methanol, soluble in anhydrous ethanol, sparingly soluble in water, slightly soluble in acetonitrile practically insoluble in heptane. lacosamide-inj-structure 11.2 Lacosamide Injection, USP Lacosamide injection, USP is a clear, colorless, sterile solution containing 10 mg lacosamide per mL for intravenous infusion. One 20-mL vial contains 200 mg of lacosamide drug substance. The inactive ingredients are sodium chloride (7.60 mg/mL) and water for injection. Hydrochloric acid is used for pH adjustment. Lacosamide injection, USP has a pH of 3.8 to 5.0.

Lamivudine and Zidovudine tablets, USP are combination tablets containing lamivudine and zidovudine. Lamivudine and zidovudine (azidothymidine, AZT, or ZDV) are synthetic nucleoside analogues with activity against HIV-1. Lamivudine and Zidovudine tablets, USP are for oral administration. Each film-coated tablet contains 150 mg of lamivudine, USP 300 mg of zidovudine, USP and the inactive ingredients microcrystalline cellulose, sodium starch glycolate, magnesium stearate and opadry white (hypromellose, polyethylene glycol, polysorbate 80 and titanium dioxide). Lamivudine: The chemical name of lamivudine is 2(1H)-Pyrimidinone,4-amino-1-[2-hydroxymethyl)-1,3-oxathio-lan-5-yl],(2R-cis)-. It has a molecular formula of C 8 H 11 N 3 O 3 S and a molecular weight of 229.26. It has the following structural formula: Lamivudine is a white to an off-white solid which is soluble in water. Zidovudine: The chemical name of zidovudine is Thymidine 3’-azido-3’-deoxy. It has a molecular formula of C 10 H 13 N 5 O 4 and a molecular weight of 267.24. It has the following structural formula: Zidovudine is a white to yellowish powder. Zidovudine is sparingly soluble in water, soluble in alcohol. Meets USP Dissolution Test 2. Structure-Lamivudine Structure-Zidovudine

Levetiracetam is an antiepileptic drug available as 250 mg (blue), 500 mg (yellow), 750 mg (orange), and 1000 mg (white) tablets for oral administration. The chemical name of levetiracetam, a single enantiomer, is (-)-(S)-α-ethyl-2-oxo-1-pyrrolidine acetamide, its molecular formula is C 8 H 14 N 2 O 2 and its molecular weight is 170.21. Levetiracetam is chemically unrelated to existing antiepileptic drugs (AEDs). It has the following structural formula: Levetiracetam USP is a white to off-white crystalline powder with a faint odor and a bitter taste. It is very soluble in water (1040 mg/mL). It is freely soluble in chloroform (653 mg/mL) and in methanol (536 mg/mL), soluble in ethanol (165 mg/mL), sparingly soluble in acetonitrile (57 mg/mL) and practically insoluble in n-hexane. (Solubility limits are expressed as mg/mL solvent.) Levetiracetam tablets, USP contain the labeled amount of levetiracetam USP. Inactive ingredients: corn starch, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, povidone, talc and additional agents listed below: 250 mg tablets: opadry II blue (FD&C blue #2/indigo carmine aluminum lake, polyvinyl alcohol, polyethylene glycol 3350, titanium dioxide, talc) 500 mg tablets: opadry II yellow (iron oxide yellow, polyvinyl alcohol, polyethylene glycol 3350, titanium dioxide, talc) 750 mg tablets: opadry II orange (FD&C yellow # 6/sunset yellow FCF aluminum lake, iron oxide red, polyvinyl alcohol, polyethylene glycol 3350, titanium dioxide, talc) 1000 mg tablets: opadry II white (polyvinyl alcohol, polyethylene glycol 3350, titanium dioxide, talc) USP Dissolution test is 4. levestructure

Maraviroc is a selective, slowly reversible, small molecule antagonist of the interaction between human CCR5 and HIV-1 gp120. Blocking this interaction prevents CCR5-tropic HIV-1 entry into cells. Maraviroc is available as film-coated tablets for oral administration containing either 150 or 300 mg of maraviroc and the following inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium starch glycolate. The tablets are coated with, Opadry II White contains lecithin, polyethylene glycol, polyvinyl alcohol, talc and titanium dioxide. Maraviroc is chemically described as 4,4-Difluoro-N-[(1S)-3-[(3-exo)-3-[3-methyl-5- (1-methylethyl)-4H-1,2,4-triazol-4-yl]-8-azabicyclo[3.2.1]oct-8-yl]-1-phenylpropyl]-cyclohexane carboxamide. The molecular formula is C 29 H 41 F 2 N 5 O and the structural formula is: Maraviroc is a white to pale colored powder with a molecular weight of 513.67. It is freely soluble in methanol and hygroscopic. maraviroctabletstructure

Methadone hydrochloride is chemically described as 6-(dimethylamino)-4,4-diphenyl-3-hepatanone hydrochloride. Methadone hydrochloride USP is colorless crystals or white powder. Its molecular formula is C 21 H 27 NO• HCl and it has a molecular weight of 345.91. Methadone hydrochloride has a melting point of 235°C, and a pKa of 8.25 in water at 20°C. Its octanol/water partition coefficient at pH 7.4 is 117. A solution (1:100) in water has a pH between 4.5 and 6.5. It has the following structural formula: Methadone hydrochloride tablets, USP are available for oral administration containing either 5 mg or 10 mg of methadone hydrochloride USP. Each tablet contains the following inactive ingredients: magnesium stearate, microcrystalline cellulose and pre-gelatinized starch. Structure

Methocarbamol tablets USP a carbamate derivative of guaifenesin, is a central nervous system (CNS) depressant with sedative and musculoskeletal relaxant properties. The chemical name of methocarbamol is 3-(2-methoxyphenoxy)-1, 2-propanediol 1-carbamate and has the empirical formula C 11 H 15 NO 5 . Its molecular weight is 241.24. The structural formula is shown below. Methocarbamol is a white powder, sparingly soluble in water and chloroform, soluble in alcohol (only with heating) and propylene glycol, and insoluble in benzene and n-hexane. Methocarbamol tablets USP are available as 500 mg and 750 mg tablets for oral administration. Methocarbamol tablets USP 500 mg and 750 mg contain the following inactive ingredients: sodium lauryl sulfate, sodium starch glycolate, povidone K 90, polyethylene glycol, magnesium stearate, colloidal silicon dioxide, low substituted hydroxypropyl cellulose and stearic acid. structure.jpg

Methylphenidate hydrochloride tablets, USP is a CNS stimulant. It is available as tablets of 5 mg, 10 mg, and 20 mg strength for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is: Methylphenidate hydrochloride USP is a white to off white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular weight is 269.77 g/mol. Methylphenidate hydrochloride tablets, USP contain the following inactive ingredients: compressible sugar, colloidal silicon dioxide, D&C yellow no. 10 (5 mg and 20 mg tablets), lactose monohydrate, magnesium stearate, and microcrystalline cellulose. image description

Methylphenidate hydrochloride extended-release tablets, USP is a central nervous system (CNS) stimulant. Methylphenidate hydrochloride extended-release tablets are available in four tablet strengths. Each extended-release tablet for once-a-day oral administration contains 18, 27, 36, or 54 mg of methylphenidate HCl USP and is designed to have a 12-hour duration of effect. Chemically, methylphenidate HCl is d, l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its empirical formula is C 14 H 19 NO 2 ·HCl. Its structural formula is: Methylphenidate HCl USP is a white to off-white crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular weight is 269.77. Methylphenidate hydrochloride extended-release tablets, USP also contains the following inert ingredients and are common to all strengths: butylated hydroxytoluene, cellulose acetate, hypromellose, phosphoric acid, polyethylene glycol, polyethylene oxides, povidone, propylene glycol, sodium chloride, stearic acid, succinic acid, ferric oxide yellow, FD&C Red No 40 and titanium dioxide. The 18 mg tablet strength also contains iron oxide yellow and Polysorbate 80. The 27 mg tablet strength also contains iron oxide red. The 36 mg tablet strength also contains talc. The 54 mg tablet strength also contains iron oxide yellow, iron oxide red and talc. Each tablet strength also contains black iron oxide, hypromellose and propylene glycol as imprinting ink. USP Dissolution Test Pending. STRUCTURE 11.1 System Components and Performance Methylphenidate hydrochloride extended-release tablets uses osmotic pressure to deliver methylphenidate HCl at a controlled rate. The system, which resembles a conventional tablet in appearance, comprises an osmotically active trilayer core surrounded by a semipermeable membrane with an immediate-release drug overcoat. The trilayer core is composed of two drug layers containing the drug and excipients, and a push layer containing osmotically active components. There is a precision-laser drilled orifice on the drug-layer end of the tablet. In an aqueous environment, such as the gastrointestinal tract, the drug overcoat dissolves within one hour, providing an initial dose of methylphenidate. Water permeates through the membrane into the tablet core. As the osmotically active polymer excipients expand, methylphenidate is released through the orifice. The membrane controls the rate at which water enters the tablet core, which in turn controls drug delivery. Furthermore, the drug release rate from the system increases with time over a period of 6 to 7 hours due to the drug-concentration gradient incorporated into the two drug layers of methylphenidate hydrochloride extended-release tablets. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the stool as a tablet shell along with insoluble core components. It is possible that methylphenidate hydrochloride extended-release tablets may be visible on abdominal x-rays under certain circumstances, especially when digital enhancing techniques are utilized.

Methylphenidate hydrochloride chewable tablets are a mild central nervous system (CNS) stimulant, available as 2.5 mg, 5 mg and 10 mg for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is Methylphenidate Hydrochloride C 14 H 19 NO 2 • HCl MW = 269.77 Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Each methylphenidate hydrochloride chewable tablet, for oral administration, contains 2.5 mg, 5 mg or 10 mg of methylphenidate hydrochloride USP. In addition, methylphenidate hydrochloride chewable tablets also contain the following inactive ingredients: aspartame, lactose anhydrous, microcrystalline cellulose, guar gum, grape flavor, pregelatinized starch, and stearic acid. structure

Omega-3-acid ethyl esters, USP, a lipid-regulating agent, is supplied as a liquid-filled gel capsule for oral administration. Each 1-gram capsule of omega-3-acid ethyl esters contains at least 900 mg of the ethyl esters of omega-3 fatty acids sourced from fish oils. These are predominantly a combination of ethyl esters of eicosapentaenoic acid (EPA - approximately 465 mg) and docosahexaenoic acid (DHA - approximately 375 mg). The empirical formula of EPA ethyl ester is C 22 H 34 O 2 , and the molecular weight of EPA ethyl ester is 330.51. The structural formula of EPA ethyl ester is: The empirical formula of DHA ethyl ester is C 24 H 36 O 2 , and the molecular weight of DHA ethyl ester is 356.55. The structural formula of DHA ethyl ester is: Omega-3-acid ethyl esters capsules, USP also contain the following inactive ingredients: gelatin, glycerin, 4.4 mg α-tocopherol, soybean oil and purified water. The capsules are printed with white imprinting ink containing titanium dioxide, hypromellose 2910 and propylene glycol.

Oxcarbazepine is an antiepileptic drug available as 150 mg, 300 mg, and 600 mg film-coated tablets for oral administration. Oxcarbazepine is 10,11-Dihydro-10-oxo-5 H -dibenz[b, f ]azepine-5-carboxamide, and its structural formula is: Oxcarbazepine USP is a light orange to creamish white or off-white powder. Sparingly soluble in acetic acid, slightly soluble in chloroform and practically insoluble in water. Its molecular weight is 252.268. Oxcarbazepine film-coated tablets USP contain the following inactive ingredients: colloidal silicon dioxide, crospovidone, hypromellose, magnesium stearate, microcrystalline cellulose, black iron oxide, iron oxide yellow, iron oxide red, polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. oxcarbazepinetabstruct

Oxycodone Hydrochloride and Acetaminophen is available in tablets for oral administration. Each tablet, for oral administration contains: Oxycodone hydrochloride, USP 2.5 mg* (*2.5 mg oxycodone Hydrochloride is equivalent to 2.2409 mg of oxycodone.) Acetaminophen, USP 325 mg Oxycodone hydrochloride, USP 5 mg* (*5 mg oxycodone Hydrochloride is equivalent to 4.4815 mg of oxycodone.) Acetaminophen, USP 325 mg Oxycodone hydrochloride, USP 7.5 mg* (*7.5 mg oxycodone Hydrochloride is equivalent to 6.7228 mg of oxycodone.) Acetaminophen, USP 325 mg Oxycodone hydrochloride, USP 10 mg* (*10 mg oxycodone Hydrochloride is equivalent to 8.9637 mg of oxycodone.) Acetaminophen, USP 325 mg Inactive Ingredients The tablets contain: colloidal silicon dioxide, croscarmellose sodium, crospovidone, microcrystalline cellulose, povidone, pregelatinized starch, and stearic acid. Oxycodone and Acetaminophen Tablets contain oxycodone, 14-hydroxydihydrocodeinone, a semisynthetic opioid analgesic which occurs as a white to off-white fine crystalline powder. The molecular formula for oxycodone hydrochloride is C 18 H 21 NO 4 ∙ HCl and the molecular weight is 381.82. It is derived from the opium alkaloid, thebaine, and may be represented by the following structural formula: Oxycodone and Acetaminophen Tablets contain acetaminophen, 4'-hydroxyacetanilide, is a non-opiate, non-salicylate analgesic and antipyretic which occurs as a white, odorless, crystalline powder. The molecular formula for acetaminophen is C 8 H 9 NO 2 and the molecular weight is 151.17. It may be represented by the following structural formula: Oxycodone Hydrochloride Structure Acetaminophen Structure.jpg

Oxycodone hydrochloride tablets USP contains oxycodone, an opioid agonist. Each tablet for oral administration contains 15 mg, or 30 mg, of oxycodone hydrochloride USP. Oxycodone hydrochloride is a white, odorless crystalline powder derived from the opium alkaloid, thebaine. Oxycodone hydrochloride dissolves in water (1 g in 6 to 7 mL) and is considered slightly soluble in alcohol (octanol water partition coefficient is 0.7). Chemically, oxycodone hydrochloride is 4, 5α-epoxy-14-hydroxy-3-methoxy-17-methylmorphinan-6- one hydrochloride and has the following structural formula: The 15 mg and 30 mg tablets contain the following inactive ingredients: magnesium stearate; microcrystalline cellulose; sodium starch glycolate; colloidal silicon dioxide; lactose; D&C Yellow No. 10. The 15 mg and 30 mg tablets contain the equivalent of 13.5 mg and 27.0 mg, respectively, of oxycodone free base. Structure

Oxymorphone hydrochloride tablet, USP is an opioid agonist available in 5 mg and 10 mg tablet strengths for oral administration. The chemical name for oxymorphone hydrochloride is 4, 5α-epoxy-3, 14-dihydroxy-17-methylmorphinan-6-one hydrochloride. The molecular weight is 337.80. The molecular formula is C 17 H 19 NO 4 .HCl and it has the following chemical structure. Oxymorphone hydrochloride, USP is white to off white powder, which is soluble in water, sparingly soluble in alcohol and ether. The inactive ingredients in oxymorphone hydrochloride tablets, USP include: lactose anhydrous, magnesium stearate, microcrystalline cellulose and pregelatinized starch. In addition, the 10 mg tablets contain D&C red No. 30 talc lake. USP Dissolution Test Pending. Structure

Pitavastatin tablets for oral use are HMG-CoA reductase inhibitors. The chemical name for pitavastatin calcium is monocalcium bis [(3 R ,5S,6E)-7-[2-cyclopropyl-4-(4-fluorophenyl)-3-quinolinyl]-3,5-dihydroxy-6-heptenoate]. The structural formula is: The molecular formula for pitavastatin calcium is C 50 H 46 CaF 2 N 2 O 8 and the molecular weight is 880.98. Pitavastatin calcium is a white to pale yellow crystalline powder. It is slightly soluble in methanol. Pitavastatin calcium is slightly 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, 2.09 mg, or 4.18 mg, respectively, of pitavastatin calcium and the following inactive ingredients: colloidal anhydrous silica, hypromellose, lactose monohydrate, low substituted hydroxypropyl cellulose, magnesium stearate, sodium carbonate anhydrous, titanium dioxide and triethyl citrate. pitavastatinstructure

Potassium Chloride Extended-Release Tablets, USP 10 mEq K is an immediately dispersing extended-release oral dosage form of potassium chloride containing 750 mg of microencapsulated potassium chloride, USP equivalent to 10 mEq K of potassium in a tablet. Potassium Chloride Extended-Release Tablets, USP 15 mEq K is an immediately dispersing extended-release oral dosage form of potassium chloride containing 1,125 mg of microencapsulated potassium chloride, USP equivalent to 15 mEq K of potassium in a tablet. Potassium Chloride Extended-Release Tablets, USP 20 mEq K is an immediately dispersing extended-release oral dosage form of potassium chloride containing 1,500 mg of microencapsulated potassium chloride, USP equivalent to 20 mEq K of potassium in a tablet. These formulations are intended to slow the release of potassium so that the likelihood of a high localized concentration of potassium chloride within the gastrointestinal tract is reduced. Potassium chloride extended-release tablets is an electrolyte replenisher. The chemical name of the active ingredient is potassium chloride, and the structural formula is KCl. Potassium chloride, USP occurs as a white, granular powder or as colorless crystals. It is odorless and has a saline taste. Its solutions are neutral to litmus. It is freely soluble in water and insoluble in alcohol. Potassium chloride extended-release tablets is a tablet formulation (not enteric-coated or wax matrix) containing individually microencapsulated potassium chloride crystals which disperse upon tablet disintegration. In simulated gastric fluid at 37°C and in the absence of outside agitation, potassium chloride extended-release tablets begins disintegrating into microencapsulated crystals within seconds and completely disintegrates within 1 minute. The microencapsulated crystals are formulated to provide an extended-release of potassium chloride, USP. Inactive Ingredients: croscarmellose sodium, ethylcellulose and microcrystalline cellulose. FDA approved dissolution test specifications differ from USP. FDA approved sample preparation in the assay differs from USP test.

Potassium citrate extended-release tablets are a citrate salt of potassium. Its empirical formula is K 3 C 6 H 5 O 7 • H 2 O, and it has the following chemical structure: Potassium citrate extended-release tablets are off white to tan yellowish, oral wax-matrix tablets, contain 5 mEq (540 mg) potassium citrate, 10 mEq (1080 mg) potassium citrate and 15 mEq (1620 mg) potassium citrate each. Inactive ingredients include carnauba wax, silicon dioxide and magnesium stearate. FDA approved dissolution test specifications differ from USP. structure.

Quetiapine is an atypical antipsychotic belonging to a chemical class, the dibenzothiazepine derivatives. The chemical designation is 2-[2-(4-Dibenzo [ b,f ] [1,4]thiazepin-11-yl-1-piperazinyl)-ethoxy] ethanol fumarate (2:1) (salt). It is present in tablets as the fumarate salt. All doses and tablet strengths are expressed as milligrams of base, not as fumarate salt. Its molecular formula is (C 21 H 25 N 3 O 2 S) 2 . C 4 H 4 O 4 and it has a molecular weight of 883.1 (fumarate salt). The structural formula is: Quetiapine fumarate USP is a white to off-white crystalline powder which is sparingly soluble in 0.1N hydrochloric acid, slightly soluble in water, in anhydrous ethanol and in methanol. Quetiapine tablets USP are supplied for oral administration as 25 mg (round, peach), 50 mg (round, white), 100 mg (round, yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. quetiapinetabsstructure