chartwell rx, llc - Medication Listings

Lisinopril, USP is an oral long-acting angiotensin converting enzyme (ACE) inhibitor. Lisinopril, USP a synthetic peptide derivative, is chemically described as (S)-1-[N 2 -(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, USP is a white to off-white, crystalline powder, with a molecular weight of 441.53. It is soluble in water and sparingly soluble in methanol and practically insoluble in ethanol. Lisinopril tablets, USP are supplied as 2.5 mg, 5 mg, 10 mg, 20 mg, 30 mg and 40 mg tablets for oral administration. Inactive Ingredients: Lisinopril tablets, USP 2.5 mg - dibasic calcium phosphate dihydrate, mannitol, pregelatinized starch-1500, magnesium stearate. Lisinopril tablets, USP 5 mg and 10 mg – dibasic calcium phosphate dihydrate, mannitol, pregelatinized starch-1500, yellow iron oxide, magnesium stearate. Lisinopril Tablets, USP 20 and 30 mg - corn starch, croscarmellose sodium, dibasic calcium phosphate, magnesium sterate, mannitol, yellow iron oxide. Lisinopril Tablets, USP 40 mg - corn starch, croscarmellose sodium, dibasic calcium phosphate, magnesium sterate, mannitol, red iron oxide. "Image Description"

Metformin hydrochloride tablets contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N -dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK a of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride tablets contain 500 mg, 625 mg, 750 mg, 850 mg, or 1000 mg of metformin hydrochloride, which is equivalent to 389.93 mg, 487.41 mg, 584.90 mg, 662.88 mg, 779.86 mg metformin base, respectively. Each tablet contains the inactive ingredients microcrystalline cellulose, copovidone, hydroxypropyl methylcellulose, crospovidone, talc, magnesium stearate, titanium dioxide, polyethylene glycol, and polysorbate. Image description

The active ingredient in omeprazole delayed-release capsule, USP is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1 H -benzimidazole, a compound that inhibits gastric acid secretion. Its molecular formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42. The structural formula is: Omeprazole is a white to off-white crystalline powder that melts with decomposition at about 155°C. It is a weak base, freely soluble in ethanol and methanol, and slightly soluble in acetone and isopropanol and very slightly soluble in water. The stability of omeprazole is a function of pH; it is rapidly degraded in acid media, but has acceptable stability under alkaline conditions. The Dissolution test to be performed according to USP Test 2. Omeprazole is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains 10 mg of omeprazole in the form of enteric-coated granules. The 10 mg capsule contains the following inactive ingredients: hypromellose, magnesium oxide, methacrylic acid copolymer dispersion type C, povidone, sodium lauryl sulfate, sugar spheres, talc, titanium dioxide, and triethyl citrate. The capsule shells for the 10 mg have the following inactive ingredients: gelatin, iron oxide black, iron oxide red, iron oxide yellow and titanium dioxide. The black ink used for printing 10 mg contains: black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. The sugar spheres contains maize starch and sucrose. "Image Description"

The active ingredient in Omeprazole Delayed-Release Capsules, USP is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1 H -benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42. The structural formula is: Omeprazole is a white to off-white crystalline powder that melts with decomposition at about 155°C. It is a weak base, freely soluble in ethanol and methanol, and slightly soluble in acetone and isopropanol and very slightly soluble in water. The stability of omeprazole is a function of pH; it is rapidly degraded in acid media, but has acceptable stability under alkaline conditions. Omeprazole Delayed-Release Capsules meet USP Dissolution Test 2. Omeprazole Delayed-Release Capsules, USP is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains 10 mg of omeprazole in the form of enteric-coated microtablets with the following inactive ingredients: crospovidone, glyceryl dibehenate, hypromellose, lactose monohydrate, methacrylic acid copolymer dispersion, silicon dioxide, talc, titanium dioxide and triethyl citrate. In addition, the capsule shells contain gelatin and may contain sodium lauryl sulfate. The imprinting ink also contains ammonium hydroxide, butyl alcohol, black iron oxide, isopropyl alcohol, propylene glycol and shellac glaze. The ink may also contain dehydrated alcohol. omeprazole_chemical_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 576.7, and the molecular formula is (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’s recommended name for albuterol base is salbutamol. Albuterol sulfate inhalation solution 0.083% requires no dilution before administration. Each mL 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. Albuterol sulfate inhalation solution is a clear, colorless solution. image description

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’s 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 0.75 mg of albuterol sulfate (equivalent to 0.021% or 0.63 mg of albuterol) or 1.5 mg of albuterol sulfate (equivalent to 0.042% or 1.25 mg of albuterol) with sodium chloride and sulfuric acid in a 3 mL isotonic, sterile, aqueous solution. Sodium chloride is added to adjust isotonicity of the solution and sulfuric acid is added to adjust pH of the solution to between 3 and 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 (0.042% or 1.25 mg strength) and 39% of albuterol (0.021% or 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 ). image description

Albuterol Sulfate Inhalation Solution, 0.5% contains albuterol sulfate, USP, the racemic form of albuterol and a relatively selective beta 2-adrenergic bronchodilator (see CLINICAL PHARMACOLOGY section below). Albuterol sulfate has the chemical name α 1-[( tert -Butylamino) methyl]-4-hydroxy- m -xylene-α,α′-diol sulfate (2:1) (salt) and the following chemical structure: (C 13 H 21 NO 3 ) 2 • H 2 SO 4 Mol. Wt. 576.7 Albuterol sulfate is a white crystalline powder, soluble in water and slightly soluble in ethanol. The World Health Organization’s recommended name for albuterol base is salbutamol. Albuterol sulfate inhalation solution, 0.5%, is in concentrated form. Dilute 0.5 mL of the solution to 3 mL with sterile normal saline solution prior to administration by nebulization (see DOSAGE AND ADMINISTRATION ). Each 0.5 mL Unit-of-Use Vial Contains: ACTIVE: 2.5 mg of albuterol (equivalent to 3 mg of albuterol sulfate, USP) in a sterile, aqueous solution; sulfuric acid is used to adjust the pH to between 3 and 5. Albuterol sulfate inhalation solution contains no sulfiting agents or preservatives. It is supplied in 0.5 mL sterile Unit-of-Use Vials. Albuterol sulfate inhalation solution is a clear, colorless to light yellow solution. image description

Albuterol tablets contain albuterol sulfate USP, the racemic form of albuterol and a relatively selective beta 2 -adrenergic bronchodilator. Albuterol sulfate 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 576.7, and the molecular formula is (C 13 H 21 NO 3 ) 2 H 2 SO 4 . Albuterol sulfate, USP is a white or almost white crystalline powder, freely soluble in water, practically insoluble or very slightly soluble in Methylene chloride and alcohol, slightly soluble in Chloroform and Ether. The World Health Organization recommended name for albuterol base is salbutamol. Each albuterol tablet for oral administration contains 2 mg or 4 mg of albuterol as 2.4 mg or 4.8 mg of albuterol sulfate USP, respectively. Each tablet also contains the following inactive ingredients: lactose monohydrate, pregelatinized starch, corn starch, and magnesium stearate. "Chemical Stucture"

Albuterol Sulfate Syrup contains albuterol sulfate, USP, the racemic form of albuterol and a relatively selective beta 2 -adrenergic bronchodilator. Albuterol sulfate has the chemical name α 1 -[( tert -butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diolsulfate (2:1) (salt) and the following chemical structure: (C 13 H 21 NO 3 ) 2 •H 2 SO 4 M.W. 576.7 Albuterol sulfate is a white or practically white powder freely soluble in water and slightly soluble in alcohol, in chloroform, and in ether per USP definition. The World Health Organization recommended name for albuterol base is salbutamol. Albuterol Sulfate Syrup for oral administration contains 2 mg of albuterol as 2.4 mg of albuterol sulfate in each teaspoonful (5 mL). Albuterol Sulfate Syrup also contains the inactive ingredients Purified water, hypromellose, citric acid anhydrous, sodium citrate dihydrate, sodium benzoate, sorbitol solution, strawberry flavor, and FD&C Yellow # 6. The pH of the syrup is 3.2 to 4.2. Albuterol Sulphate Chemical Structure

Montelukast sodium, the active ingredient in Montelukast Sodium Chewable Tablets, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium is described chemically as [R-(E)]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid, monosodium salt. The empirical formula is C 35 H 35 CINNaO 3 S, and its molecular weight is 608.18. The structural formula is: Montelukast sodium is a hygroscopic, optically active, white to off-white powder. Montelukast sodium is freely soluble in ethanol, methanol, and water and practically insoluble in acetonitrile. Each 4-mg and 5-mg Montelukast Sodium Chewable Tablet contains 4.2 and 5.2 mg montelukast sodium, respectively, which are equivalent to 4 and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: butylated hydroxyanisole, colloidal silicon dioxide, croscarmellose sodium, hydroxypropyl cellulose, hydroxypropyl methylcellulose, mannitol, microcrystalline cellulose, natural and artificial orange flavor, red ferric oxide, sodium stearyl fumarate and sucralose. image description

Hydrochlorothiazide, USP is a diuretic and antihypertensive. It is the 3,4-dihydro derivative of chlorothiazide. Its chemical name is 6-chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide. Its molecular formula is C 7 H 8 CIN 3 O 4 S 2 and its structural formula is: It is a white, or practically white, crystalline powder with a molecular weight of 297.74 which is slightly soluble in water, freely soluble in sodium hydroxide solution, in n-butylamine and in dimethylformamide; sparingly soluble in methanol; insoluble in ether, in chloroform and in dilute mineral acids. Each tablet for oral administration contains 12.5 mg, 25 mg and 50 mg of hydrochlorothiazide respectively. In addition, each tablet contains following inactive ingredients: anhydrous lactose, D&C Yellow No.10 aluminum lake, FD&C Red No. 40 aluminum lake, magnesium stearate, pregelatinized starch and sodium starch glycolate. image description

Furosemide, USP is a diuretic which is an anthranilic acid derivative. Chemically, it is 4-chloro-N-furfuryl-5-sulfamoylanthranilic acid. Furosemide, USP is a white to slightly yellow, odorless, crystalline powder. It is practically insoluble in water, sparingly soluble in alcohol, freely soluble in solutions of dilute alkali hydroxides and insoluble in dilute acids. The CAS Registry Number is 54-31-9. The structural formula is as follows: C 12 H 11 ClN 2 O 5 S M.W. 330.74 Each tablet, for oral administration, contains 20 mg or 40 mg Furosemide, USP. In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, corn starch, lactose monohydrate, magnesium stearate, povidone, and sodium starch glycolate. Both strengths: 20 mg and 40 mg meet USP Dissolution Test 1. image description

The active ingredient in Pantoprazole Sodium Delayed-Release Tablets, USP, a PPI, is a substituted benzimidazole, sodium 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1 H -benzimidazole sesquihydrate, a compound that inhibits gastric acid secretion. Its empirical formula is C 16 H 14 F 2 N 3 NaO 4 S x 1.5 H 2 O, with a molecular weight of 432.4. The structural formula is: Pantoprazole sodium sesquihydrate is a white to off-white 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 is supplied as a delayed-release tablet, available in two strengths (20 mg and 40 mg). Each Pantoprazole Sodium Delayed-Release Tablet contains 45.1 mg or 22.55 mg of pantoprazole sodium sesquihydrate (equivalent to 40 mg or 20 mg pantoprazole, respectively) with the following inactive ingredients: crospovidone, glyceryl dibehenate, hypromellose, lactose monohydrate, methacrylic acid copolymer dispersion, talc, titanium dioxide, and triethyl citrate. The 20 mg tablet also contains black iron oxide, isopropyl alcohol, and propylene glycol. Pantoprazole Sodium Delayed-Release Tablets (40 mg and 20 mg) complies with USP dissolution test 4. image description

Amoxicillin, USP is a semisynthetic antibacterial (amoxicillin), an analog of ampicillin, with a broad spectrum of bactericidal activity against many Gram-positive and Gram-negative microorganisms. Chemically, it is (2 S ,5 R ,6 R )-6-[( R )-(-)-2-amino-2-( p -hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid trihydrate. It may be represented structurally as: The amoxicillin, USP molecular formula is C 16 H 19 N 3 O 5 S•3H 2 O, and the molecular weight is 419.45. Amoxicillin Capsules, USP Each capsule, for oral administration, contains 250 mg or 500 mg amoxicillin, USP as the trihydrate. Each 250 mg capsule contains the following inactive ingredients: magnesium stearate, sodium lauryl sulfate, D&C Yellow No. 10, FD&C Yellow No. 6, FD&C Blue No. 1, FD&C Red No. 3, titanium dioxide and gelatin. Each 500 mg capsule contains the following inactive ingredients: magnesium stearate, sodium lauryl sulfate, D&C Yellow No. 10, FD&C Yellow No. 6, titanium dioxide and gelatin. image description

Formulation of Amoxicillin for Oral Suspension, USP contains amoxicillin, a semisynthetic antibacterial (amoxicillin), an analog of ampicillin, with a broad spectrum of bactericidal activity against many Gram-positive and Gram-negative microorganisms. Chemically, it is (2 S ,5 R ,6 R )- 6-[( R )-(-)-2-amino-2-( p -hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid trihydrate. It may be represented structurally as: The amoxicillin molecular formula is C 16 H 19 N 3 O 5 S·3H 2 O, and the molecular weight is 419.45. Each 5 mL of reconstituted suspension for oral administration contains 400 mg amoxicillin as the trihydrate. Each 5 mL of the 400-mg reconstituted suspension contains 0.09 mEQ (2.18mg) of sodium. Inactive ingredients consist of bubble gum flavor, FD&C Red No. 40, silicon dioxide, sodium benzoate, sodium citrate anhydrous, sucrose, and xanthan gum. image description

Amoxicillin, USP is a semisynthetic antibacterial (amoxicillin), an analog of ampicillin, with a broad spectrum of bactericidal activity against many Gram-positive and Gram-negative microorganisms. Chemically, it is (2 S ,5 R ,6 R )-6-[( R )-(-)-2-amino-2-( p -hydroxyphenyl)acetamido]-3-3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid trihydrate. It may be represented structurally as: The amoxicillin, USP molecular formula is C 16 H 19 N 3 O 5 S . 3H 2 O, and the molecular weight is 419.45. for oral suspension: Each 5 mL of reconstituted suspension contains 125 mg or 250 mg of amoxicillin as the trihydrate. Each 5 mL of the 125 mg reconstituted suspension contains 0.11 mEq (2.51 mg) of sodium. Each 5 mL of the 250 mg reconstituted suspension contains 0.15 mEq (3.36 mg) of sodium. Inactive ingredients: microcrystalline cellulose and carboxymethylcellulose sodium, sucrose, colloidal silicon dioxide, sodium citrate, sodium propionate, artificial cream flavor, and FD&C Red # 40 and FD&C Yellow # 6. image description

Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, that are readily absorbed from the gastrointestinal tract. The formula for prednisone is C 21 H 26 O 5 . Chemically, it is 17,21-dihydroxypregna-1,4-diene-3,11,20-trione and has the following structure: Prednisone is a white to practically white, odorless, crystalline powder and has a molecular weight of 358.43. It melts at about 230°C with some decomposition. Prednisone is very slightly soluble in water, slightly soluble in alcohol, chloroform, dioxane, and methanol. Prednisone Tablets, USP contain 1 mg Prednisone, USP. The inactive ingredients for Prednisone Tablets, USP include: Microcrystalline Cellulose, Lactose Monohydrate, Pregelatinized Starch, Stearic Acid, Sodium Starch Glycolate and Magnesium Stearate. image description

Prednisone is a glucocorticoid. Glucocorticoids are adrenocortical steroids, both naturally occurring and synthetic, which are readily absorbed from the gastrointestinal tract. Prednisone, USP is a white to partially white, crystalline powder. It is very slightly soluble in water; slightly soluble in alcohol, chloroform, dioxane, and methanol. The chemical name for prednisone is 17,21-dihydroxypregna-1,4-dienne-3,11,20-trione. The structural formula is represented below: C 21 H 26 O 5 M.W. 358.44 Each tablet, for oral administration, contains 20 mg of prednisone. Inactive Ingredients: PredniSONE Tablets, USP contain the following inactive ingredients: lactose monohydrate, corn starch, sucrose, sodium starch glycolate, and calcium stearate. image description

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. Prednisone is a white to practically white, odorless, crystalline powder. It is very slightly soluble in water; slightly soluble in alcohol, in chloroform, in dioxane, and in methanol. The chemical name for prednisone is pregna-1,4-diene-3,11,20-trione, 17,21-dihydroxy- and its molecular weight is 358.43. The structural formula is represented below: Prednisone Tablets, USP are available as 5 mg. Inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn), sodium starch glycolate (potato), and stearic acid. image description

Celecoxib capsule is a nonsteroidal anti-inflammatory drug, available as capsules containing 100 mg, 200 mg and 400 mg celecoxib for oral administration. The chemical name is 4-[5-(4-methylphenyl)-3- (trifluoromethyl) -1H-pyrazol-1-yl] benzenesulfonamide and is a diaryl-substituted pyrazole. The molecular weight is 381.38. Its molecular formula is C 17 H 14 F 3 N 3 O 2 S, and it has the following chemical structure: Celecoxib, USP is a white to off-white powder with a pKa of 11.1 (sulfonamide moiety). Celecoxib is hydrophobic (log P is 3.5) and is practically insoluble in aqueous media at physiological pH range. The inactive ingredients in celecoxib capsules include: croscarmellose sodium, lactose monohydrate, magnesium stearate, povidone K30 and sodium lauryl sulfate. The involatile ingredients in imprinting ink for all strengths (i.e. 100 mg, 200 mg and 400 mg) include: shellac, propylene glycol, potassium hydroxide and ferrosoferric oxide (black iron oxide). The ingredients in capsule shell of the 100 mg strength include: gelatin, titanium dioxide, Erythrosine (FD&C Red #3) and Brilliant Blue FCF (FD&C Blue #1). The ingredients in capsule shell of the 200 mg strength include: gelatin, titanium dioxide, Sunset Yellow FCF (FD&C Yellow #6) and Brilliant Blue FCF (FD&C Blue #1). The ingredients in capsule shell of the 400 mg strength include: gelatin, titanium dioxide and Brilliant Blue FCF (FD&C Blue #1). structural-formula

Fluoxetine Oral Solution, USP is a selective serotonin reuptake inhibitor for oral administration. It is designated (±)-N-methyl-3-phenyl-3-[(α,α,α-trifluoro- p -tolyl)oxy]propylamine hydrochloride and has the empirical formula of C 17 H 18 F 3 NO•HCl. Its molecular weight is 345.79. The structural formula is: Fluoxetine Hydrochloride, USP is a white to off-white crystalline solid with a solubility of 14 mg/mL in water. The oral solution is mint flavored, colorless to straw colored, and contains fluoxetine hydrochloride equivalent to 20 mg per 5 mL (64.7 µmol) of fluoxetine. It also contains benzoic acid, sucrose, glycerin, peppermint flavor, and purified water. image description

Each triamterene and hydrochlorothiazide capsule, USP for oral use contains triamterene, USP 37.5 mg and hydrochlorothiazide, USP 25 mg. Hydrochlorothiazide, USP is a diuretic/antihypertensive agent and triamterene, USP is an antikaliuretic agent. Hydrochlorothiazide, USP is slightly soluble in water. It is soluble in dilute ammonia, dilute aqueous sodium hydroxide, and dimethylformamide. It is sparingly soluble in methanol. Hydrochlorothiazide, USP is 6-chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide, and its structural formula is: Molecular Formula: C 7 H 8 CIN 3 O 4 S 2 M.W. 297.74 At 50°C, triamterene, USP is practically insoluble in water (less than 0.1%). It is soluble in formic acid, sparingly soluble in methoxyethanol, and very slightly soluble in alcohol. Triamterene, USP is 2,4,7-triamino-6-phenylpteridine and its structural formula is: Molecular Formula: C 12 H 11 N 7 M.W. 253.26 Inactive ingredients consist of lactose monohydrate, pregelatinized starch, sodium starch glycolate, polysorbate 80, citric acid anhydrous, povidone, and magnesium stearate. The capsule shell consists of titanium dioxide and gelatin. The capsule imprinting ink consists of shellac glaze in ethanol, iron oxide black, n-butyl alcohol, propylene glycol, ethanol, methanol, FD&C Blue # 2 Aluminum Lake, FD&C Red # 40 Aluminum Lake, FD&C Blue # 1 Aluminum Lake, and D&C Yellow # 10 Aluminum Lake. Triamterene and hydrochlorothiazide capsules, USP meet USP Dissolution Test 3 as published in the current USP monograph for Triamterene and Hydrochlorothiazide Capsules. image description image description

Ibuprofen tablets, USP contain the active ingredient ibuprofen, which is (±) - 2 - (p - isobutylphenyl) propionic acid. Ibuprofen is a white powder with a melting point of 74-77°C and is very slightly soluble in water (<1 mg/mL) and readily soluble in organic solvents such as ethanol and acetone. The structural formula is represented below: Ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID), is available in 400 mg, 600 mg, and 800 mg tablets for oral administration. Inactive ingredients: carnauba wax, colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, polysorbate, titanium dioxide. image description

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, USP are formulated as blue colored, round, film-coated 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: croscarmellose sodium, dibasic calcium phosphate dihydrate, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and blue film coating containing hydroxypropylmethyl cellulose, lactose monohydrate, titanium dioxide, triacetin, glycerol triacetate, FD&C Blue # 2, Indigotine aluminum lake. image description

Azithromycin for Oral Suspension, USP 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 749.00. Azithromycin has the following structural formula: Azithromycin, as the monohydrate, is a white crystalline powder with a molecular formula of C 38 H 72 N 2 O 12 ·H 2 O and a molecular weight of 785.0. Azithromycin for Oral Suspension, USP is supplied in bottles containing azithromycin monohydrate powder equivalent to 300 mg, 600 mg, 900 mg, or 1200 mg azithromycin per bottle and the following inactive ingredients: sucrose; tribasic sodium phosphate anhydrous; hydroxypropyl cellulose; xanthan gum; colloidal silicon dioxide, FD&C Red #40; and artificial cherry flavor. After constitution, each 5 mL of suspension contains 100 mg or 200 mg of azithromycin. "Image Description"

Meloxicam Tablets, USP are a nonsteroidal anti-inflammatory drug (NSAID). Each tablet contains 7.5 mg or 15 mg Meloxicam, USP for oral administration. Meloxicam, USP 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, USP is a pale yellow powder, practically insoluble in water, soluble in dimethylformamide, very slightly soluble in ethanol. Meloxicam, USP has an apparent partition coefficient (log P) app = 0.1 in n -octanol/buffer pH 7.4. Meloxicam, USP has pKa values of 1.1 and 4.2. Meloxicam, USP 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, povidone, magnesium stearate, microcrystalline cellulose and sodium citrate dihydrate. image description

Clarithromycin is a semi-synthetic macrolide antimicrobial for oral use. Chemically, it is 6- 0-methylerythromycin. The molecular formula is C 38 H 69 NO 13 , and the molecular weight is 747.96. The structural formula is: Figure 1: Structure of Clarithromycin Clarithromycin is a white to off-white crystalline powder. It is soluble in acetone, slightly soluble in methanol, ethanol, and acetonitrile, and practically insoluble in water. Clarithromycin is available as extended-release tablets. Each white or off-white, capsular-shaped film-coated Clarithromycin Extended-Release Tablets, USP contains 500 mg of clarithromycin and the following inactive ingredients: glyceryl dibehenate, hypromellose, lactose monohydrate, magnesium stearate, polyethylene glycol, and titanium dioxide. Clarithromycin Extended-Release Tablets, USP meets the dissolution specifications which were established according to the USP monograph-clarithromycin extended-release tablets Test 2. image description

Clarithromycin is a semi-synthetic macrolide antimicrobial for oral use. Chemically, it is 6- 0 -methylerythromycin. The molecular formula is C 38 H 69 NO 13 , and the molecular weight is 747.96 g/mol. The structural formula is: Clarithromycin is a white to off-white crystalline powder. It is soluble in acetone, slightly soluble in methanol, ethanol, and acetonitrile, and practically insoluble in water. Clarithromycin tablets, USP are available as immediate-release tablets. Each white to off white film-coated immediate-release clarithromycin tablet, USP contains 250 mg or 500 mg of clarithromycin and the following inactive ingredients: Colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol and titanium dioxide. The 250 mg tablets are oval and the 500 mg tablets are capsule shaped. Clarithromycin is a semi-synthetic macrolide antimicrobial for oral use. Chemically, it is 6-0 -methylerythromycin. The molecular formula is C38H69NO13, and the molecular weight is 747.96 g/mol. The s

Citalopram Oral Solution, USP is an orally administered selective serotonin reuptake inhibitor (SSRI) with a chemical structure unrelated to that of other SSRIs or of tricyclic, tetracyclic, or other available antidepressant agents. Citalopram Hydrobromide, USP is a racemic bicyclic phthalane derivative 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 fine, white to off-white powder. Citalopram Hydrobromide, USP is sparingly soluble in water and soluble in ethanol. Citalopram Hydrobromide, USP is available as a clear, colorless, peppermint flavored oral solution. Citalopram Oral Solution, USP contains Citalopram Hydrobromide, USP equivalent to 2 mg/mL citalopram base. It also contains the following inactive ingredients: sorbitol, purified water, propylene glycol, methylparaben, peppermint flavor, and propylparaben. image description

Each 5 mL of Oxybutynin Chloride Oral Solution, USP contains 5 mg of Oxybutynin Chloride, USP. Chemically, oxybutynin chloride is d,l (racemic) 4-diethylamino-2-butynyl phenylcyclohexylglycolate hydrochloride. The empirical formula of oxybutynin chloride is C 22 H 31 NO 3 .HCl. The structural formula appears below: Oxybutynin chloride is a white crystalline solid with a molecular weight of 393.9. It is readily soluble in water and acids, but relatively insoluble in alkalis. Oxybutynin Chloride Oral Solution, USP also contains sucrose, citric acid, sodium citrate dihydrate, glycerin, sorbitol solution, propylene glycol, methylparaben, propylparaben, wild cherry flavor, FD&C red #40, and water. Oxybutynin Chloride Oral Solution, USP is for oral administration. Therapeutic Category: Antispasmodic, anticholinergic. image description

Oxybutynin chloride extended-release tablets, USP are an antispasmodic, muscarinic antagonist. Each Oxybutynin chloride extended-release tablet contains 5 mg, 10 mg, or 15 mg of oxybutynin chloride USP, formulated as a once-a-day controlled-release tablet for oral administration. Oxybutynin chloride is administered as a racemate of R- and S-enantiomers. Chemically, oxybutynin chloride is d,l (racemic) 4-diethylamino-2-butynyl phenylcyclohexylglycolate hydrochloride. The empirical formula of oxybutynin chloride is C 22 H 31 NO 3 •HCl. Its structural formula is: Oxybutynin chloride is a white crystalline solid with a molecular weight of 393.9. It is readily soluble in water and acids, but relatively insoluble in alkalis. Oxybutynin chloride extended-release tablets also contain the following inert ingredients: black iron oxide, cellulose acetate, colloidal silicon dioxide, dextrose, hypromellose, lactose, magnesium stearate, mannitol, polyethylene glycol, propylene glycol, tartaric acid, titanium dioxide, triacetin. System Components and Performance Oxybutynin chloride extended-release tablets use osmotic pressure to deliver oxybutynin chloride at a controlled rate over approximately 24 hours. The system, which resembles a conventional tablet in appearance, comprises an osmotically active core surrounded by a semipermeable membrane. The unitary tablet core is composed of the drug and excipients (including the osmotically active components). There is a precision-laser drilled orifice in the semipermeable membrane on the side of the tablet. In an aqueous environment, such as the gastrointestinal tract, water permeates through the membrane into the tablet core, causing the drug to go into suspension and the osmotic components to expand. This expansion pushes the drug out through the orifice. The semipermeable membrane controls the rate at which water permeates into the tablet core, which in turn controls the rate of drug delivery. The controlled rate of drug delivery into the gastrointestinal lumen is thus independent of pH or gastrointestinal motility. The function of Oxybutynin chloride extended-release tablets depends on the existence of an osmotic gradient between the contents of the core and the fluid in the gastrointestinal tract. Since the osmotic gradient remains constant, drug delivery remains essentially constant. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the feces as an insoluble shell. USP Drug Release Test 3. image description

Ciprofloxacin Tablets, USP are synthetic antimicrobial agents for oral administration. Ciprofloxacin Hydrochloride, USP, a fluoroquinolone, is the monohydrochloride monohydrate salt of 1-cyclopropyl-6-fluoro-1, 4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid. It is a faintly yellowish to light yellow crystalline substance with a molecular weight of 385.8. Its molecular formula is C 17 H 18 FN 3 O 3 ·HC·H 2 O and its chemical structure is as follows: Ciprofloxacin Tablets, USP film-coated are available in 250 mg, 500 mg and 750 mg (ciprofloxacin equivalent) strengths. Ciprofloxacin Tablets, USP are white to off-white. The inactive ingredients are colloidal silicon dioxide, crospovidone, hypromellose, magnesium stearate, polyethylene glycol, and titanium dioxide. FDA approved dissolution specifications differs from the USP. The chemical structure is as follows Ciprofloxacin tablets, USP are synthetic antimicrobial agents for oral administration. Ciprofloxacin hydrochloride, USP, a fluoroquinolone, is the monohydrochlorid

Ciprofloxacin for Oral Suspension, USP is a synthetic antimicrobial agent for oral administration. Ciprofloxacin hydrochloride, USP, a fluoroquinolone, is the monohydrochloride monohydrate salt of 1-cyclopropyl-6-fluoro-1, 4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid. It is a faintly yellowish to light yellow crystalline substance with a molecular weight of 385.8. Its empirical formula is C 17 H 18 FN 3 O 3 •HCl•H 2 O and its chemical structure is as follows: Ciprofloxacin is 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid. Its empirical formula is C 17 H 18 FN 3 O 3 and its molecular weight is 331.4. It is a faintly yellowish to light yellow crystalline substance and its chemical structure is as follows: Ciprofloxacin for Oral Suspension, USP is available in 5% (5 g ciprofloxacin in 100 mL) and 10% (10 g ciprofloxacin in 100 mL) strengths. Ciprofloxacin for Oral Suspension, USP is White to cream colored granular blend on reconstitution gives white yellow colored suspension with strawberry flavor. It is composed of ciprofloxacin granular blend and diluent which are mixed prior to dispensing [see Dosage and Administration ( 2.5 )] . The components of the suspension have the following compositions: Granular blend - amino methacrylate copolymer, croscarmellose sodium, hydrophobic fumed silica, hypromellose, sucrose and talc. Diluent - flavour strawberry, hydrophobic fumed silica, lecithin, medium chain triglycerides, polysorbate 20, sucralose, and sucrose. Five (5) mL of 5% suspension contains approximately 1.35 g of sucrose and 5 mL of 10% suspension contains approximately 0.693 g of sucrose. chem struc 1 chem struc 2

Paroxetine Extended-Release Tablets, USP contain paroxetine hydrochloride, an SSRI. It is the hydrochloride salt of a phenylpiperidine compound identified chemically as (-)- trans -4 R- (4'-fluorophenyl)-3 S -[(3',4'-methylenedioxyphenoxy) methyl] piperidine hydrochloride hemihydrate and has the empirical formula of C 19 H 20 FNO 3 •HCl• ½ H 2 O. The molecular weight is 374.8 g/mol (329.4 g/mol as free base). The structural formula of paroxetine hydrochloride is: Paroxetine hydrochloride is an odorless, off-white powder, having a melting point range of 120° C to 138°C and a solubility of 5.4 mg/mL in water. Paroxetine Extended-Release Tablets, USP are intended for oral administration. Each enteric, film-coated, extended-release tablet contains paroxetine hydrochloride equivalent to paroxetine as follows: 12.5 mg–white, 25 mg–pink and 37.5 mg–blue. Inactive ingredients consist of hypromellose, lactose monohydrate, magnesium stearate, methacrylic acid and ethyl acrylate copolymer dispersion, polyethylene glycols, polyvinyl alcohol, povidone, silicon dioxide, talc, titanium dioxide, triethyl citrate. In addition, the 25 mg and 37.5 mg colorant contains FD&C Blue No. 2 aluminum lake. In addition, the 25 mg colorant also contains carmine. Paroxetine meets USP Dissolution Test 3. image description

Paroxetine Tablets, USP contain paroxetine hydrochloride, an SSRI. It is the hydrochloride salt of a phenylpiperidine compound identified chemically as (-)- trans -4 R -(4'-fluorophenyl)-3 S -[(3',4'- methylenedioxyphenoxy) methyl] piperidine hydrochloride hemihydrate and has the empirical formula of C 19 H 20 FNO 3 HCl 1/2 H 2 O. The molecular weight is 374.8 (329.4 as free base). The structural formula of paroxetine hydrochloride is: Paroxetine hydrochloride is an odorless, off-white powder, having a melting point range of 120℃ to 138℃ and a solubility of 5.4 mg/mL in water. Tablets Paroxetine Tablets, USP are for oral administration. Each film-coated tablet contains 10 mg, 20 mg, 30 mg, or 40 mg of paroxetine equivalent to 11.1 mg, 22.2 mg, 33.3 mg or 44.4 mg paroxetine hydrochloride, respectively. Inactive ingredients in core tablets: dibasic calcium phosphate dihydrate, hypromellose, magnesium stearate, sodium starch glycolate. Inactive ingredients in the coating of 10 mg tablets: ferric oxide red, ferric oxide yellow, ferrosoferric oxide, hypromellose, maltodextrin, medium-chain triglycerides, polydextrose, talc, titanium dioxide. Inactive ingredients in the coating of 20 mg tablets: ferric oxide red, hypromellose, polyethylene glycol, titanium dioxide. Inactive ingredients in the coating of 30 mg tablets: FD&C Blue No. 2 Aluminum Lake, hypromellose, polyethylene glycol, polysorbate 80, titanium dioxide. Inactive ingredients in the coating of 40 mg tablets: FD&C Blue No. 1 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, ferric oxide yellow, hypromellose, polyethylene glycol, polyvinyl alcohol, talc, titanium dioxide. Complies with USP Chromatographic Purity Test 2. image description

Acarbose Tablets, USP are an oral alpha-glucosidase inhibitor for use in the management of type 2 diabetes mellitus. Acarbose is an oligosaccharide which is obtained from fermentation processes of a microorganism, Actinoplanes utahensis , and is chemically known as O-4,6-dideoxy- 4-[[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)-2-cyclohexen-1-yl] amino]- α-D-glucopyranosyl-(1 → 4)-O-α -D-glucopyranosyl-(1 → 4)-D-glucose. It is a white to off-white powder with a molecular weight of 645.6. Acarbose is soluble in water and has a pKa of 5.1. Its empirical formula is C 25 H 43 NO 18 and its chemical structure is as follows: Acarbose Tablets, USP are available as 25 mg, 50 mg and 100 mg tablets for oral use. The inactive ingredients are starch (corn starch), microcrystalline cellulose, magnesium stearate, and colloidal silicon dioxide. image description

Acetazolamide, USP an inhibitor of the enzyme carbonic anhydrase is a white to faintly yellowish white crystalline, odorless powder, weakly acidic, very slightly soluble in water and slightly soluble in alcohol. The chemical name for acetazolamide is N -(5-Sulfamoyl-1,3,4-thiadiazol-2-yl) acetamide and has the following chemical structure: Molecular Weight: 222.25 Molecular Formula: C 4 H 6 N 4 O 3 S 2 Acetazolamide Tablets, USP are available for oral administration each containing 125 mg and 250 mg of acetazolamide respectively. Additionally, they contain the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone, pregelatinized starch, sodium lauryl sulfate, and sodium starch glycolate. image description

Acetazolamide extended-release capsules are an inhibitor of the enzyme carbonic anhydrase. Acetazolamide is a white to faintly yellowish white crystalline, odorless powder, weakly acidic, very slightly soluble in water, and slightly soluble in alcohol. The chemical name for acetazolamide is N-(5-Sulfamoyl-1,3,4-thiadiazol-2-yl) acetamide and has the following chemical structure: Each acetazolamide extended-release capsule intended for oral administration contains 500 mg of acetazolamide. In addition, each capsule contains the following inactive ingredients: ammonio methacrylate copolymer dispersion type A and B, FD&C yellow #6, gelatin, microcrystalline cellulose, sodium lauryl sulfate, talc and titanium dioxide. The capsule is printed with black pharmaceutical ink which contains black iron oxide as a coloring agent. image description

Acetic Acid Otic Solution, USP is a colorless to pale yellow color nonaqueous solution of glacial acetic acid (2%), in a propylene glycol vehicle containing benzethonium chloride, propylene glycol diacetate, and sodium acetate trihydrate. It may also contain citric acid anhydrous. The molecular formula for acetic acid is CH 3 COOH, with a molecular weight of 60.05. The structural formula is: Acetic Acid Otic Solution, USP is available as a nonaqueous otic solution buffered at pH 3 for use in the external ear canal. image description

Acyclovir, USP is a synthetic nucleoside analogue active against herpesviruses. Acyclovir Suspension, USP is formulated for oral administration. Each teaspoonful (5 mL) of Acyclovir Oral Suspension, USP contains 200 mg of acyclovir and the following inactive ingredients: banana flavor, carboxymethylcellulose sodium, glycerin, methylparaben, microcrystalline cellulose, propylparaben, purified water and sorbitol. Acyclovir is a white, crystalline powder with the molecular formula C 8 H 11 N 5 O 3 and a molecular weight of 225.20. The maximum solubility in water at 37°C is 2.5 mg/mL. The pka's of acyclovir are 2.27 and 9.25. The chemical name of Acyclovir is 2-amino-1,9-dihydro-9-[(2-hydroxyethoxy)methyl]-6H-purin-6-one; it has the following structural formula: "Image Description"

Acyclovir, USP is a synthetic nucleoside analogue active against herpesviruses. Acyclovir Capsules, USP and Acyclovir Tablets, USP are formulations for oral administration. Each capsule contains 200 mg of acyclovir, USP and the inactive ingredients corn starch, lactose monohydrate, magnesium stearate, and sodium lauryl sulfate. The capsule shell consists of gelatin, FD&C Blue No. 1, FD&C Red No. 3, FD&C Yellow No. 6 and titanium dioxide. Printed with edible black ink. Each 800 mg tablet of acyclovir contains 800 mg of acyclovir, USP and the inactive ingredients magnesium stearate, microcrystalline cellulose PH101, povidone K30, and sodium starch glycolate (Type A) (Starch from Non GMO potatoes). Acyclovir, USP is a white, crystalline powder with the molecular formula C 8 H 11 N 5 O 3 and a molecular weight of 225. The maximum solubility in water at 37°C is 2.5mg/mL. The pka’s of acyclovir are 2.27 and 9.25. The chemical name of acyclovir, USP is 2-amino-1,9-dihydro-9-[(2-hydroxyethoxy)methyl]-6H-purin-6-one; it has the following structural formula: VIROLOGY Mechanism of Antiviral Action: Acyclovir is a synthetic purine nucleoside analogue with in vitro and in vivo inhibitory activity against herpes simplex virus types 1 (HSV-1), 2 (HSV-2), and varicella-zoster virus (VZV). The inhibitory activity of acyclovir is highly selective due to its affinity for the enzyme thymidine kinase (TK) encoded by HSV and VZV. This viral enzyme converts acyclovir into acyclovir monophosphate, a nucleotide analogue. The monophosphate is further converted into diphosphate by cellular guanylate kinase and into triphosphate by a number of cellular enzymes. In vitro , acyclovir triphosphate stops replication of herpes viral DNA. This is accomplished in 3 ways: 1) competitive inhibition of viral DNA polymerase, 2) incorporation into and termination of the growing viral DNA chain, and 3) inactivation of the viral DNA polymerase. The greater antiviral activity of acyclovir against HSV compared with VZV is due to its more efficient phosphorylation by the viral TK. Antiviral Activities: The quantitative relationship between the in vitro susceptibility of herpes viruses to antivirals and the clinical response to therapy has not been established in humans, and virus sensitivity testing has not been standardized. Sensitivity testing results, expressed as the concentration of drug required to inhibit by 50% the growth of virus in cell culture (IC 50 ), vary greatly depending upon a number of factors. Using plaque-reduction assays, the IC 50 against herpes simplex virus isolates ranges from 0.02 to 13.5 mcg/mL for HSV-1 and from 0.01 to 9.9 mcg/mL for HSV-2. The IC 50 for acyclovir against most laboratory strains and clinical isolates of VZV ranges from 0.12 to 10.8 mcg/mL. Acyclovir also demonstrates activity against the Oka vaccine strain of VZV with a mean IC 50 of 1.35 mcg/mL. Drug Resistance: Resistance of HSV and VZV to acyclovir can result from qualitative and quantitative changes in the viral TK and/or DNA polymerase. Clinical isolates of HSV and VZV with reduced susceptibility to acyclovir have been recovered from immunocompromised patients, especially with advanced HIV infection. While most of the acyclovir-resistant mutants isolated thus far from immunocompromised patients have been found to be TK-deficient mutants, other mutants involving the viral TK gene (TK partial and TK altered) and DNA polymerase have been isolated. TK-negative mutants may cause severe disease in infants and immunocompromised adults. The possibility of viral resistance to acyclovir should be considered in patients who show poor clinical response during therapy. "Image Description"

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 to off-white tablet contains either 100 mg or 300 mg allopurinol and the inactive ingredients croscarmellose sodium, colloidal silicon dioxide, and magnesium stearate. image description

Amantadine Hydrochloride Oral Solution, USP Rx only DESCRIPTION Amantadine Hydrochloride Oral Solution, USP is designated generically as amantadine hydrochloride and chemically as 1-adamantanamine hydrochloride. Amantadine hydrochloride is a stable white or nearly white crystalline powder, freely soluble in water and soluble in alcohol and in chloroform. Amantadine hydrochloride has pharmacological actions as both an anti-Parkinson and an antiviral drug. Amantadine Hydrochloride Oral Solution, USP is available in oral solution. Amantadine Hydrochloride Oral Solution, USP contains 50 mg of amantadine hydrochloride per 5 mL and has the following inactive ingredients: sorbitol solution, anhydrous citric acid, methylparaben, propylparaben, propylene glycol, purified water, and wild cherry flavor. image description

Amantadine Hydrochloride, USP is designated chemically as 1-adamantanamine hydrochloride. Its molecular weight is 187.71 with a molecular formula C 10 H 17 N.HCl. It has the following structural formula: Amantadine hydrochloride, USP is a stable white or nearly white crystalline powder, freely soluble in water and soluble in alcohol and in chloroform. Amantadine hydrochloride has pharmacological actions as both an anti-Parkinson and an antiviral drug. Each Amantadine Hydrochloride Capsule, USP intended for oral administration contains 100 mg amantadine hydrochloride, USP. Each capsule also contains the following inactive ingredients: croscarmellose sodium, magnesium stearate, microcrystalline cellulose and pregelatinized starch. The capsule shell contains the following: FD&C Blue No. 1, FD&C Red No. 40, gelatin, sodium lauryl sulfate and titanium dioxide. The imprinting ink contains the following: potassium hydroxide, shellac and titanium dioxide. Product meets USP Dissolution Test 2 . Amantadine Hydrochloride

Amiodarone hydrochloride, USP, is an antiarrhythmic drug, available for oral administration as yellow tablets containing 100 mg of amiodarone hydrochloride, yellow scored tablets containing 200 mg of amiodarone hydrochloride, and yellow scored tablets containing 400 mg of amiodarone hydrochloride. The inactive ingredients present in 100 mg, 200 mg, and 400 mg tablets are: lactose monohydrate, sodium starch glycolate, povidone, colloidal silicon dioxide, magnesium stearate, and pigment D&C yellow 10 aluminum lake. Amiodarone hydrochloride is a benzofuran derivative: 2-butyl-3-benzofuranyl 4-[2-(diethylamino)-ethoxy]- 3,5-diiodophenyl ketone hydrochloride. The structural formula is as follows: C 25 H 29 I 2 NO 3 •HCl Molecular Weight: 681.8 Amiodarone hydrochloride is a white to cream-colored crystalline powder. It is slightly soluble in water, soluble in alcohol, and freely soluble in chloroform. It contains 37.3% iodine by weight. FDA approved dissolution test specifications differ from USP. Structure

Amoxapine is an antidepressant of the dibenzoxazepine class, chemically distinct from the dibenzazepines, dibenzocycloheptenes, and dibenzoxepines. It is designated chemically as 2-Chloro-11-(1-piperazinyl)dibenz[b,f][1,4]oxazepine. The structural formula is represented below: C 17 H 16 CIN 3 O M.W. 313.78 Amoxapine is supplied for oral administration as 25 mg, 50 mg, 100 mg and 150 mg tablets. Amoxapine Tablets USP, 25 mg, 50 mg, 100 mg and 150 mg contain: dibasic calcium phosphate dihydrate, microcrystalline cellulose, pregelatinized starch, hypromellose, croscarmellose sodium, and sodium stearyl fumarate. image description

Anagrelide Hydrochloride, USP is a platelet-reducing agent. Its chemical name is 6,7-dichloro-1,5-dihydroimidazo[2,1-b]quinazolin-2(3H)-one monohydrochloride monohydrate. The molecular formula is C 10 H 7 Cl 2 N 3 O•HCl•H 2 O which corresponds to a molecular weight of 310.55. The structural formula is: Anagrelide Hydrochloride, USP is an off-white powder. It is very slightly soluble in water and sparingly soluble in dimethyl sulfoxide and dimethylformamide. Anagrelide Capsules, USP is supplied as capsules for oral administration, containing 0.5 mg and 1 mg of anagrelide base (as anagrelide hydrochloride, USP). The capsules also contain lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, and crospovidone. Capsule shell contains gelatin, titanium dioxide and black iron oxide (1mg). Additionally, capsule shells are imprinted with black imprint ink, it contains ammonium hydroxide, black iron oxide, isopropyl alcohol, N-butyl alcohol, propylene glycol and shellac glaze. image description

Anastrozole Tablets, USP for oral administration contain 1 mg of anastrozole, a non-steroidal aromatase inhibitor. It is chemically described as 1,3-Benzenediacetonitrile, a, a, a', a'-tetramethyl-5-(1H-1,2,4-triazol-1-ylmethyl). Its molecular formula is C 17 H 19 N 5 and its structural formula is: Anastrozole, USP is an off-white powder with a molecular weight of 293.4. Anastrozole, USP has moderate aqueous solubility (0.5 mg/mL at 25°C); solubility is independent of pH in the physiological range. Anastrozole, USP is freely soluble in methanol, acetone, ethanol, and tetrahydrofuran, and very soluble in acetonitrile. Each tablet contains as inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol/macrogol sodium starch glycolate, and titanium dioxide. image description

Aripiprazole, USP is an atypical antipsychotic drug that is available as aripiprazole oral solution. Aripiprazole is 7-[4-[4-(2,3-dichlorophenyl)-1-piperazinyl]butoxy]-3,4- dihydrocarbostyril. The empirical formula is C 23 H 27 C l2 N 3 O 2 and its molecular weight is 448.38. The chemical structure is: Aripiprazole oral solution is a clear to pale yellow solution with orange flavor available in a concentration of 1 mg/mL. The inactive ingredients for this solution include disodium edetate, fructose, glycerin, malic acid, methylparaben, orange flavor, propylene glycol, propylparaben, sodium hydroxide, sucrose and purified water. "Image Description"

Atovaquone Oral Suspension, USP is a quinone antimicrobial drug. The chemical name of atovaquone is trans -2-[4-(4-chlorophenyl)cyclohexyl]-3-hydroxy-1,4-naphthalenedione. Atovaquone is a yellow crystalline solid 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: Atovaquone Oral Suspension, USP is a formulation of micro-fine particles of atovaquone. Each 5 mL of atovaquone oral suspension contains 750 mg of atovaquone and the inactive ingredients benzyl alcohol, fruity flavor, poloxamer 188, purified water, saccharin sodium, and xanthan gum. "Image Description"