american health packaging - Medication Listings

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 •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 molecular 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 film-coated tablets are available in 250 mg, 500 mg and 750 mg (ciprofloxacin equivalent) strengths. Each ciprofloxacin film-coated tablet contains 250 mg (equivalent to 291 mg ciprofloxacin hydrochloride monohydrate) or 500 mg (equivalent to 582 mg ciprofloxacin hydrochloride monohydrate) or 750 mg of ciprofloxacin (equivalent to 873 mg ciprofloxacin hydrochloride monohydrate). Ciprofloxacin tablets, USP are white to off-white. The inactive ingredients are colloidal silicon dioxide, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate, and titanium dioxide. Ciprofloxacin Hydrochloride Structural Formula Ciprofloxacin Structural Formula

Tramadol hydrochloride tablets USP, for oral use, are an opioid agonist. The chemical name for tramadol hydrochloride is (±) cis -2-[(dimethylamino)methyl]-1-(3-methoxyphenyl) cyclohexanol hydrochloride. The structural formula is: The molecular weight of tramadol hydrochloride is 299.84. Tramadol hydrochloride, USP is a white or almost white crystalline powder. It is freely soluble in water and in methanol, very slightly soluble in acetone and has a pKa of 9.41. The n-octanol/water log partition coefficient (logP) is 1.35 at pH 7. Tramadol hydrochloride tablets, USP contain 50 mg of tramadol hydrochloride, USP and are white in color. Inactive ingredients in the tablet are hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, pregelatinized starch, sodium starch glycolate, and titanium dioxide. 1

Paroxetine tablets, USP contains 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 molecular formula of C 19 H 20 FNO 3 •HCl•1/2H 2 O. The molecular weight is 374.8 (329.4 as free base). The structural formula of paroxetine hydrochloride is: Paroxetine hydrochloride, USP is an odorless, white to off-white crystalline powder, having a melting point range of 120°C to 138°C. It is freely soluble in methanol, soluble in ethanol, sparingly soluble in dichloromethane and slightly soluble in water. Paroxetine tablets 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 of paroxetine hydrochloride, respectively. In addition, each tablet contains the following inactive ingredients: dibasic calcium phosphate anhydrous, hypromellose 6 cP, lactose anhydrous, magnesium stearate, polyethylene glycol 6000, povidone, sodium starch glycolate, talc, and titanium dioxide. Structural Formula

Escitalopram tablets contains escitalopram a selective serotonin reuptake inhibitor (SSRI), present as escitalopram oxalate salt. Escitalopram is the pure S-enantiomer (single isomer) of the racemic bicyclic phthalane derivative citalopram. Escitalopram oxalate is designated S-(+)-1-[3(dimethylamino) propyl]-1-(p-fluorophenyl)-5-phthalancarbonitrile oxalate with the following structural formula: The molecular formula is C 20 H 21 FN 2O • C 2 H 2 O 4 and the molecular weight is 414.40. Escitalopram oxalate, USP occurs as a fine, white to slightly-yellow powder and is freely soluble in methanol and dimethyl sulfoxide (DMSO), soluble in isotonic saline solution, sparingly soluble in water and ethanol, slightly soluble in ethyl acetate, and insoluble in heptane. Escitalopram tablets USP, for oral use, are film-coated, round tablets containing 6.38 mg, 12.75 mg, 25.5 mg escitalopram oxalate in strengths equivalent to 5 mg, 10 mg, and 20 mg, respectively, of escitalopram base. The 10 and 20 mg tablets are scored. The tablets also contain the following inactive ingredients: colloidal silicon dioxide, corn starch, croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, talc, and a film coating agent. The film coating agent, Opadry II White Y-22-7719, contains the following ingredients: hypromellose; polydextrose; polyethylene glycol; triacetin; and titanium dioxide. Meets USP Dissolution Test 2. chemical structure

Buprenorphine Sublingual Tablets are supplied as white to off white, round flat-faced beveled edged tablets debossed with "RP" on one side and an alphanumeric word identifying product and strength on the other side. They contain buprenorphine HCl, a partial agonist at the mu-opioid receptor, and are available in two dosage strengths, 2 mg buprenorphine and 8 mg buprenorphine (as the free base, equivalent to 2.16 mg buprenorphine hydrochloride USP and 8.64 mg buprenorphine hydrochloride USP, respectively). Each tablet also contains lactose monohydrate, povidone K29/32, anhydrous citric acid, trisodium citrate dihydrate, corn starch, mannitol, crospovidone, and magnesium stearate. Chemically, buprenorphine HCl is (2S)-2-[17-Cyclopropylmethyl-4,5α-epoxy-3-hydroxy-6-methoxy- 6α,14-ethano-14α-morphinan-7α-yl]-3,3-dimethylbutan-2-ol hydrochloride. It has the following chemical structure: Buprenorphine HCl has the molecular formula C 29 H 41 NO 4 • HCl and the molecular weight is 504.10. It is a white or off-white crystalline powder, sparingly soluble in water, freely soluble in methanol, soluble in alcohol, and practically insoluble in cyclohexane. Structure

Naproxen Tablets, USP and Naproxen Sodium Tablets, USP are nonsteroidal anti-inflammatory drugs available as follows: Naproxen Tablets, USP are available as follows for oral administration: 250 mg: circular, light orange colored, flat, uncoated tablets, engraved with ‘G’ and ‘32’ on either side of a break line on one side and ‘250’ on the other side. 375 mg: oval, light orange colored, biconvex, uncoated tablets, engraved with ‘G 32’ on one side and ‘375’ on the other side. 500 mg: capsule shaped, light orange colored, uncoated tablets, debossed with ‘G’ and ‘32’ on either side of a break line on one side and ‘500’ on the other side. The inactive ingredients are croscarmellose sodium, iron oxide red, iron oxide yellow, magnesium stearate, microcrystalline cellulose and povidone. Naproxen Sodium Tablets, USP are available as follows for oral administration: 275 mg: blue, oval, film-coated tablets with ‘G 0’ engraved on one side and ‘275’ engraved on the other side. 550 mg: blue colored, modified capsule shaped, biconvex, film-coated tablets, engraved with ‘G’ and ‘0’ on either side of a break line and a break line on the other side. The inactive ingredients are colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, povidone and talc. The coating suspension for the naproxen sodium 275 mg and 550 mg tablet contains FD&C blue#2, iron oxide red, hypromellose, polyethylene glycol and titanium dioxide. Naproxen, USP is a propionic acid derivative related to the arylacetic acid group of nonsteroidal anti-inflammatory drugs. The chemical names for naproxen, USP and naproxen sodium, USP are (S)-6-methoxy-α-methyl-2-naphthaleneacetic acid and (S)-6-methoxy-α-methyl-2-naphthaleneacetic acid, sodium salt, respectively. Naproxen, USP has a molecular weight of 230.26 g/mol and a molecular formula of C 14 H 14 O 3 . Naproxen sodium, USP has a molecular weight of 252.24 g/mol and a molecular formula of C 14 H 13 NaO 3 . Naproxen, USP and naproxen sodium, USP have the following structures, respectively: Naproxen, USP is a white to off-white crystalline powder. It is soluble in chloroform, dehydrated alcohol and alcohol; sparingly soluble in ether, insoluble in water. Naproxen sodium, USP is a white to almost white crystalline powder, soluble in water and methanol; sparingly soluble in ethanol. Structural Formulas

Abacavir sulfate is a synthetic carbocyclic nucleoside analogue with inhibitory activity against HIV-1. The chemical name of abacavir sulfate is ( 1 S,cis)- 4-[2-amino-6-(cyclopropylamino)-9 H -purin-9-yl]-2-cyclopentene-1-methanol sulfate (salt) (2:1). Abacavir sulfate is the enantiomer with 1S , 4R absolute configuration on the cyclopentene ring. It has a molecular formula of (C 14 H 18 N 6 O) 2 •H 2 SO 4 and a molecular weight of 670.76 g per mol. It has the following structural formula: Abacavir sulfate USP is a white to off-white solid and is soluble in water. 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, and sodium starch glycolate. The tablets are coated with a film that is made of hypromellose, iron oxide yellow, polysorbate 80, titanium dioxide, and triacetin. In vivo, abacavir sulfate dissociates to its free base, abacavir. Dosages are expressed in terms of abacavir. Structural Formula

Abiraterone acetate, USP the active ingredient of abiraterone acetate tablets, USP is the acetyl ester of abiraterone. Abiraterone is an inhibitor of CYP17 (17α-hydroxylase/C17,20-lyase). Each abiraterone acetate tablet, USP contains either 250 mg or 500 mg of abiraterone acetate, USP. Abiraterone acetate, USP is designated chemically as (3β)-acetoxy-17-(3-pyridinyl)androsta-5,16-diene and its structure is: Abiraterone acetate, USP is a white to off-white, non-hygroscopic, crystalline powder. Its molecular formula is C 26 H 33 NO 2 and it has a molecular weight of 391.55 g/mol. Abiraterone acetate, USP is a lipophilic compound with an octanol-water partition coefficient of 5.12 (Log P) and is practically insoluble in water. The pKa of the aromatic nitrogen is 5.19. Abiraterone acetate tablets are available in 250 mg uncoated tablets and 500 mg film-coated tablets with the following inactive ingredients: 250 mg uncoated tablets: colloidal silicon dioxide, croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone, and sodium lauryl sulfate. 500 mg film-coated tablets: colloidal silicon dioxide, croscarmellose sodium, lactose monohydrate, magnesium stearate, povidone, silicified microcrystalline cellulose, and sodium lauryl sulfate. The coating, Opadry ® II Purple, contains iron oxide black, iron oxide red, polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Abiraterone acetate tablets USP, 250 mg meets USP Dissolution Test 3. Abiraterone acetate tablets USP, 500 mg meets USP Dissolution Test 2. Structural Formula

Acamprosate calcium delayed-release tablets are supplied as an enteric-coated tablet for oral administration. Acamprosate calcium, USP is a synthetic compound with a chemical structure similar to that of the endogenous amino acid homotaurine, which is a structural analogue of the amino acid neurotransmitter γ-aminobutyric acid and the amino acid neuromodulator taurine. Its chemical name is calcium bis [3-(acetylamino) propane-1-sulfonate]. Its chemical formula is C 10 H 20 CaN 2 O 8 S 2 and molecular weight is 400.5 g/mol. Its structural formula is: Acamprosate calcium, USP is a white to almost white powder, odorless or nearly odorless powder. It is freely soluble in water and practically insoluble in alcohol and methylene chloride. Each acamprosate calcium delayed-release tablet contains acamprosate calcium USP, 333 mg, equivalent to 300 mg of acamprosate. Inactive ingredients in acamprosate calcium delayed-release tablets include: colloidal silicon dioxide, crospovidone, methacrylic acid copolymer dispersion, magnesium silicate, magnesium stearate, microcrystalline cellulose, polyvinyl pyrollidone, propylene glycol, sodium starch glycolate, and talc. Sulfites were used in the synthesis of the drug substance and traces of residual sulfites may be present in the drug product. Acamprosate Calcium Structural Formula

Acetazolamide Extended-release Capsules are an inhibitor of the enzyme carbonic anhydrase. Acetazolamide, USP is a white to faintly yellowish white, crystalline odorless powder, sparingly soluble in practically boiling water, slightly soluble in alcohol, very slightly soluble in water. The chemical name for acetazolamide is N-(5-Sulfamoyl-1,3,4-thiadiazol-2-yl) acetamide and has the following chemical structure: MW 222.25 C 4 H 6 N 4 O 3 S 2 Each acetazolamide extended-release capsule, USP intended for oral administration contains 500 mg of acetazolamide. In addition, each capsule contains the following inactive ingredients: gelatin, iron oxide yellow, microcrystalline cellulose, sodium lauryl sulfate, talc and titanium dioxide. Each capsule is printed with black pharmaceutical ink which contains black iron oxide, butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. Meets USP Dissolution Test 3. figure

Acyclovir tablets, USP is a formulation for oral administration. Each tablet for oral administration contains 400 mg or 800 mg of acyclovir, USP. In addition each tablet contains the following inactive ingredients, magnesium stearate, microcrystalline cellulose, povidone, silicon dioxide and sodium starch glycolate. Acyclovir 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 2.5 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: VIROLOGY Mechanism of Antiviral Action: Acyclovir is a synthetic purine nucleoside analogue with in vitro and in vivo in hibitory 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. Chemical Structure

Acyclovir is a synthetic nucleoside analogue active against herpes viruses. Acyclovir capsule is a formulation for oral administration. Each capsule of acyclovir contains 200 mg of acyclovir and the inactive ingredients colloidal silicon dioxide, croscarmellose sodium, magnesium stearate and microcrystalline cellulose. The capsule shell consists of FD&C blue #1, gelatin and titanium dioxide. The capsule black imprinting ink contains the following inactive ingredients: ammonium hydroxide, black iron oxide, n-butyl, ethyl alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol and shellac. Acyclovir is a white, crystalline powder with the molecular formula C 8 H 11 N 5 O 3 and a molecular weight of 225.2. 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]-6 H -purin-6-one; it has the following structural formula: acyclovir-01

Allopurinol, USP is a xanthine oxidase inhibitor. It has the following structural formula: Allopurinol, USP 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 white to off-white scored tablet contains 100 mg or 300 mg of allopurinol, USP and the inactive ingredients croscarmellose sodium, lactose monohydrate, magnesium stearate, pregelatinized starch and povidone. Image

Alprazolam tablets, USP contain alprazolam which is a triazolo analog of the 1,4 benzodiazepine class of central nervous system-active compounds. The chemical name of alprazolam is 8-Chloro-1-methyl-6-phenyl-4H-s-triazolo [4,3-α] [1,4] benzodiazepine. The structural formula is: Alprazolam USP is a white to off-white, crystalline powder, which is soluble in methanol or ethanol but which has no appreciable solubility in water at physiological pH. Each alprazolam tablet USP, for oral administration, contains 0.25 mg, 0.5 mg, 1 mg, or 2 mg of alprazolam USP. Inactive ingredients: colloidal silicon dioxide, corn starch, docusate sodium 85% with sodium benzoate 15%, lactose monohydrate, magnesium stearate, and microcrystalline cellulose. In addition, the 0.5 mg tablet contains FD&C Yellow # 6 aluminum lake and the 1 mg tablet contains FD&C Blue No. 2 lake. Structural Formula

Uses for the relief of: acid indigestion heartburn sour stomach upset stomach due to these symptoms pressure and bloating commonly referred to as gas

Uses for the relief of: acid indigestion heartburn sour stomach upset stomach due to these symptoms pressure and bloating commonly referred to as gas

Amantadine hydrochloride is designated chemically as 1-adamantanamine hydrochloride. Its molecular weight is 187.71 with a molecular formula C 10 H 18 NCl. It has the following structural formula: Amantadine hydrochloride is a stable white or almost 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 is available as 100 mg capsules for oral administration. Inactive ingredients: microcrystalline cellulose, hydroxypropyl cellulose, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, gelatin, titanium dioxide, FD&C Blue #1, FD&C Red #40. The non-volatile components of imprinting ink are shellac, propylene glycol, potassium hydroxide and titanium oxide. Meets USP Dissolution Test 2. Structure

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 contains 50 mg of amantadine hydrochloride per 5 mL and has the following inactive ingredients: artificial raspberry flavor, citric acid, methylparaben, propylene glycol, propylparaben, purified water, sorbitol solution. May contain sodium hydroxide to adjust pH to approximately 2.3. Structural Formula

Aminocaproic Acid Tablets (aminocaproic acid) is 6-aminohexanoic acid, which acts as an inhibitor of fibrinolysis. Its chemical structure is: Aminocaproic acid is soluble in water, acid, and alkaline solutions; it is sparingly soluble in methanol and practically insoluble in chloroform. Each Aminocaproic Acid Tablets, for oral administration contains 500 mg or 1000 mg of aminocaproic acid and the following inactive ingredients: povidone, crospovidone, stearic acid, and magnesium stearate. Structural Formula

Amiodarone hydrochloride tablets, USP is an antiarrhythmic drug, available for oral administration as white to off-white, scored tablets containing 200 mg of amiodarone hydrochloride USP. The inactive ingredients present are colloidal silicon dioxide, lactose monohydrate, magnesium stearate, povidone, and sodium starch glycolate. 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: Amiodarone hydrochloride USP is a white or almost white, fine crystalline powder. It is slightly soluble in water, soluble in alcohol, and freely soluble in chloroform. It contains 37.3% iodine by weight. Structural Formula

Amitriptyline hydrochloride USP, a dibenzocycloheptadiene derivative, is a white, or practically white, odorless or practically odorless, crystalline powder or small crystals and freely soluble in water, alcohol, chloroform and methanol and insoluble in ether. It is designated chemically as 10,11-Dihydro-N,N-dimethyl-5 H -dibenzo[a,d] cycloheptene-Δ 5 , γ-propylamine hydrochloride. It has the following structural formula: Each amitriptyline hydrochloride tablet, USP for oral administration contains 10 mg, 25 mg, 50 mg, 75 mg, 100 mg, or 150 mg amitriptyline hydrochloride, USP. Inactive ingredients are: croscarmellose sodium, colloidal silicon dioxide, hydroxypropyl methylcellulose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, pregelatinized starch (corn), talc, and titanium dioxide. Additionally, 25 mg tablets contain: D&C Yellow #10 Aluminum Lake and FD&C Blue #1 Aluminum Lake; 50 mg tablets contain: D&C Yellow #10 Aluminum Lake, iron oxide red and iron oxide yellow; 75 mg tablets contain: FD&C Blue #2 Aluminum Lake and iron oxide yellow; 100 mg tablets contain: D&C Red #27 Aluminum Lake and D&C Yellow #10 Aluminum Lake; 150 mg tablets contain: iron oxide red and iron oxide yellow. Structural Formula

Amoxicillin and clavulanate potassium tablets, USP are an oral antibacterial combination consisting of amoxicillin and the beta-lactamase inhibitor, clavulanate potassium (the potassium salt of clavulanic acid). Amoxicillin USP is an analog of ampicillin, derived from the basic penicillin nucleus, 6-aminopenicillanic acid. The amoxicillin molecular formula is C 16 H 19 N 3 O 5 S•3H 2 O, and the molecular weight is 419.46. Chemically, amoxicillin 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 and may be represented structurally as: Clavulanic acid is produced by the fermentation of Streptomyces clavuligerus . It is a beta-lactam structurally related to the penicillins and possesses the ability to inactivate some beta-lactamases by blocking the active sites of these enzymes. The clavulanate potassium molecular formula is C 8 H 8 KNO 5 , and the molecular weight is 237.25. Chemically, clavulanate potassium is potassium ( Z )( 2R,5R )-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]-heptane-2-carboxylate and may be represented structurally as: 250 mg/125 mg: Each tablet contains 250 mg of amoxicillin USP as the trihydrate, and 125 mg of clavulanic acid (equivalent to 149 mg of clavulanate potassium). 500 mg/125 mg: Each tablet contains 500 mg of amoxicillin USP as the trihydrate, and 125 mg of clavulanic acid (equivalent to 149 mg of clavulanate potassium). 75 mg/125 mg: Each tablet contains 875 mg of amoxicillin USP as the trihydrate, and 125 mg of clavulanic acid (equivalent to 149 mg of clavulanate potassium). Inactive Ingredients: Colloidal silicon dioxide, crospovidone, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, surelease clear (aqueous ethyl cellulose dispersion), and titanium dioxide. Each tablet of amoxicillin and clavulanate contains 0.63 mEq potassium. Amoxicillin Structural Formula Clavulanic Potassium Structural Formula

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 has moderate aqueous solubility (0.5 mg/mL at 25°C); solubility is independent of pH in the physiological range. Anastrozole is freely soluble in methanol, acetone, ethanol, and tetrahydrofuran, and very soluble in acetonitrile. Each tablet contains as inactive ingredients: lactose, magnesium stearate, hydroxypropylmethylcellulose, polyethylene glycol, povidone, sodium starch glycolate, and titanium dioxide. Structural Formula

Uses relieves: acid indigestion heartburn

Arformoterol tartrate inhalation solution is a sterile, clear, colorless, aqueous solution of the tartrate salt of arformoterol, the (R,R)-enantiomer of formoterol. Arformoterol is a selective beta 2 -adrenergic bronchodilator. The chemical name for arformoterol tartrate is formamide, N-[2-hydroxy-5-[(1R)-1-hydroxy-2-[[(1R)-2(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]-,(2R,3R)-2,3-dihydroxy butanedioate (1:1 salt), and its established structural formula is as follows: The molecular weight of arformoterol tartrate is 494.5 g/mol, and its molecular formula is C 19 H 24 N 2 O 4 . C 4 H 6 O 6 (1:1 salt). It is a white or off white or light brown colored powder that is slightly soluble in water. Arformoterol tartrate is the United States Adopted Name (USAN) for (R,R)-formoterol L-tartrate. Arformoterol tartrate inhalation solution is supplied as 2 mL of arformoterol tartrate solution packaged in 3 mL unit-dose, low-density polyethylene (LDPE) unit-dose vials. Each unit-dose vial contains 15 mcg of arformoterol (equivalent to 22 mcg of arformoterol tartrate) in a sterile, isotonic saline solution, pH-adjusted to 5.0 with citric acid and sodium citrate. Arformoterol tartrate inhalation solution requires no dilution before administration by nebulization. Like all other nebulized treatments, the amount delivered to the lungs will depend upon patient factors, the nebulizer used, and compressor performance. Using the PARI LC ® Plus nebulizer (with mouthpiece) connected to a PARI DURA NEB TM 3000 compressor under in vitro conditions, the mean delivered dose from the mouthpiece (% nominal) was approximately 4.1 mcg (27.6%) at a mean flow rate of 3.3 L/min. The mean nebulization time was 6 minutes or less. Arformoterol tartrate inhalation solution should be administered from a standard jet nebulizer at adequate flow rates via face mask or mouthpiece. Patients should be carefully instructed on the correct use of this drug product (please refer to the accompanying Patient Information ). Structural Formula

Aripiprazole is a psychotropic drug that is available as aripiprazole tablets. Aripiprazole tablets, USP are chemically designated as 7-[4-[4-(2,3-Dichlorophenyl)-1-piperazinyl]butoxy]-3,4-dihydro-2(1H)-quinolinone. The molecular formula is C 23 H 27 C l2 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-1

Atenolol, a synthetic, beta 1 -selective (cardioselective) adrenoreceptor-blocking agent, may be chemically described as benzeneacetamide, 4 -[2'-hydroxy-3'-[(1- methylethyl) amino] propoxy]-. The molecular and structural formulas are: Atenolol, USP has a molecular weight of 266. It is a white or almost white powder, sparingly soluble in water; soluble in absolute alcohol and practically insoluble in ether. Atenolol tablets, for oral administration, are available as 25 mg, 50 mg and 100 mg tablets. Inactive Ingredients: Citric acid (anhydrous), colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, povidone. Structural Formula

Atomoxetine is a selective norepinephrine reuptake inhibitor. Atomoxetine hydrochloride is the R (-) isomer as determined by x-ray diffraction. The chemical designation is (-)- N -Methyl-3-phenyl-3-( o -tolyloxy)-propylamine hydrochloride. The molecular formula is C 17 H 21 NO•HCl, which corresponds to a molecular weight of 291.82. The chemical structure is: Atomoxetine hydrochloride USP is a white to practically white solid, which has a solubility of 27.8 mg/mL in water. Atomoxetine capsules USP are intended for oral administration only. Each capsule contains atomoxetine hydrochloride USP equivalent to 10 mg, 18 mg, 25 mg, 40 mg, 60 mg, 80 mg, or 100 mg of atomoxetine. The capsules also contain the following inactive ingredients: pregelatinized starch and simethicone emulsion. The empty hard gelatin capsule shells contain gelatin, titanium dioxide, and sodium lauryl sulfate. In addition, the 18 mg contains iron oxide yellow, 25 mg and 40 mg contains FD&C Blue No 2, 60 mg contains FD&C Blue No 2 and iron oxide yellow, 80 mg and 100 mg contain iron oxide red and iron oxide yellow. The capsules are printed with edible ink containing black iron oxide and shellac. Structural Formula

Atovaquone oral suspension is a quinone antimicrobial drug. The chemical name of atovaquone is 1,4-Naphthalenedione, 2-[4-(4-chlorophenyl)cyclohexyl]-3-hydroxy-, trans. Atovaquone USP is a yellow colored powder that is freely soluble in tetrahydrofuran, soluble in chloroform and sparingly soluble in acetone. 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 USP. Each 5 mL of atovaquone oral suspension, USP contains 750 mg of atovaquone USP and the inactive ingredients benzyl alcohol, flavor, hypromellose, poloxamer, purified water, saccharin sodium, and xanthan gum. Structural Formula

Azathioprine is an immunosuppressive antimetabolite. Each uncoated azathioprine tablet intended for oral administration contains 25 mg or 50 mg or 75 mg or 100 mg of azathioprine. In addition, each tablet contains the following inactive ingredients: croscarmellose sodium, lactose monohydrate, magnesium stearate, povidone and starch. Azathioprine is chemically 6-[(1-methyl-4-nitro-1 H -imidazol-5-yl)thio]-1 H -purine. The structural formula of azathioprine is: It is an imidazolyl derivative of 6-mercaptopurine and many of its biological effects are similar to those of the parent compound. Azathioprine, USP is a pale yellow, odorless powder. It is insoluble in water, soluble in dilute solutions of alkali hydroxides, sparingly soluble in dilute mineral acids, very slightly soluble in alcohol and in chloroform. The sodium salt of azathioprine is sufficiently soluble to make a 10 mg/mL water solution which is stable for 24 hours at 59° to 77°F (15° to 25°C). Azathioprine is stable in solution at neutral or acid pH but hydrolysis to mercaptopurine occurs in excess sodium hydroxide (0.1N), especially on warming. Conversion to mercaptopurine also occurs in the presence of sulfhydryl compounds such as cysteine, glutathione, and hydrogen sulfide. Structural Formula

Baclofen, USP is a muscle relaxant and antispastic. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid. The 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, 10 mg, 15 mg or 20 mg baclofen, USP. In addition, each tablet contains the following inactive ingredients: dibasic calcium phosphate anhydrous, magnesium stearate, microcrystalline cellulose, pregelatinized starch, povidone and sodium starch glycolate. Structural Formula

Benzonatate capsules, USP, 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 for oral administration contains 100 mg or 200 mg of benzonatate. In addition, each capsule also contains the following inactive ingredients: gelatin, glycerin, noncrystallising sorbitol solution, methylparaben, propylparaben and purified water. Structural Formula

Benztropine mesylate is a synthetic compound containing structural features found in atropine and diphenhydramine. It is a crystalline white powder, very soluble in water, designated as 3α-(Diphenylmethoxy)-1αH, 5αH-tropane methanesulfonate, with the following structural formula: Each tablet, for oral administration, contains 0.5 mg, 1 mg or 2 mg of benztropine mesylate. Each tablet contains the following inactive ingredients: croscarmellose sodium, dibasic calcium phosphate, lactose monohydrate, magnesium stearate and microcrystalline cellulose. Structural Formula

Bethanechol chloride, a cholinergic agent, is a synthetic ester which is structurally and pharmacologically related to acetylcholine. It is designated chemically as 2-[(aminocarbonyl) oxy]- N,N,N -trimethyl-1-propanaminium chloride. Its molecular formula is C 7 H 17 CIN 2 O 2 and its structural formula is: Bethanechol chloride, USP is a white, hygroscopic crystalline powder having a slight amine-like odor, freely soluble in water, and has a molecular weight of 196.68. Each tablet for oral administration contains 5 mg, 10 mg, 25 mg or 50 mg bethanechol chloride, USP. Bethanechol chloride Tablets, USP also contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose and sodium starch glycolate, Type A. The 25 mg and 50 mg tablets also contain D&C Yellow No.10 Aluminum Lake and FD&C Yellow No. 6 Aluminum Lake. Structural Formula

BISOPROLOL FUMARATE USP is a synthetic, beta 1 -selective (cardioselective) adrenoceptor blocking agent. The chemical name for bisoprolol fumarate is (±)-1-[4-[[2-(1-Methylethoxy)ethoxy]methyl]phenoxy]-3-[(1-methylethyl)amino]-2-propanol (E)-2-butenedioate (2:1) (salt). It possesses an asymmetric carbon atom in its structure and is provided as a racemic mixture. The S(-) enantiomer is responsible for most of the beta-blocking activity. Its molecular formula is (C 18 H 31 NO 4 ) 2 •C 4 H 4 O 4 and its structure is: Bisoprolol fumarate has a molecular weight of 766.97. It is a white crystalline powder which is approximately equally hydrophilic and lipophilic, and is readily soluble in water, methanol, ethanol, and chloroform. BISOPROLOL FUMARATE TABLETS USP are available as 5 and 10 mg tablets for oral administration. Inactive ingredients include Colloidal Silicon Dioxide, Corn Starch (Pregelatinized), Crospovidone, Dibasic Calcium Phosphate, Hypromellose, Magnesium Stearate, Microcrystalline Cellulose, Polyethylene Glycol, Polysorbate 80 and Titanium Dioxide. The 5 mg tablets also contain Red and Yellow Iron Oxide. Structural Formula

Budesonide USP, the active ingredient of budesonide delayed-release capsules (enteric coated), is a synthetic corticosteroid. Budesonide is designated chemically as (RS)-11β, 16α, 17,21-tetrahydroxypregna-1,4-diene-3,20-dione cyclic 16,17-acetal with butyraldehyde. Budesonide is provided as a mixture of two epimers (22R and 22S). The molecular formula of budesonide is C 25 H 34 O 6 and its molecular weight is 430.5. Its structural formula is: Budesonide, USP is a white to off-white, odorless, crystalline powder that is practically insoluble in water and heptane, sparingly soluble in ethanol, and freely soluble in chloroform. Its partition coefficient between octanol and water at pH 5 is 1.6 x 10 3 ionic strength 0.01. Each capsule for oral administration contains 3 mg of micronized budesonide with the following inactive ingredients: acetyltributyl citrate, ethylcellulose aqueous dispersion, gelatin, iron oxide red, iron oxide yellow, methacrylic acid copolymer dispersion, polysorbate 80, simethicone emulsion, sodium lauryl sulfate, sugar spheres, talc, titanium dioxide and triethyl citrate. The capsule shell is printed with black pharmaceutical ink which contains following ingredients: iron oxide black, potassium hydroxide, propylene glycol and shellac. Structural Formula

Budesonide, the active component of budesonide inhalation suspension, is a corticosteroid designated chemically as ( RS )-11β,16α,17,21-tetrahydroxypregna-1,4-diene-3,20 dione cyclic 16,17-acetal with butyraldehyde. Budesonide is provided as a mixture of two epimers (22R and 22S). The empirical formula of budesonide is C 25 H 34 O 6 and its molecular weight is 430.5. Its structural formula is: Budesonide is white to off-white, tasteless, odorless powder that is practically insoluble in water and in heptane, sparingly soluble in ethanol, and freely soluble in chloroform. Its partition coefficient between octanol and water at pH 7.4 is 1.6 x 10 3 . Budesonide inhalation suspension is a sterile suspension for inhalation via jet nebulizer and contains the active ingredient budesonide (micronized), and the inactive ingredients anhydrous citric acid, disodium edetate dihydrate, polysorbate 80, sodium chloride, sodium citrate anhydrous and water for injection. It is available in single-dose ampules: 0.5 mg per 2 mL ampule. For budesonide inhalation suspension, 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-Jet Plus Nebulizer/Pari Master compressor system, under in vitro conditions, the mean delivered dose at the mouthpiece (% nominal dose) was approximately 17% at a mean flow rate of 5.5 L/min. The mean nebulization time was 5 minutes or less. Budesonide inhalation suspension should be administered from jet nebulizers at adequate flow rates, via face masks or mouthpieces [see Dosage and Administration (2) ]. Structural Formula

Bumetanide is a loop diuretic available as 0.5 mg (light green), 1 mg (yellow) and 2 mg (peach) tablets for oral administration; each tablet also contains anhydrous lactose, magnesium stearate, microcrystalline cellulose, pregelatinized starch and talc, with the following dye systems: 0.5 mg—D&C Yellow No. 10 aluminum lake and FD&C Blue No. 1 aluminum lake; 1 mg—D&C Yellow No. 10 aluminum lake; 2 mg—red iron oxide. Chemically, bumetanide is 3-(butylamino)-4-phenoxy-5-sulfamoylbenzoic acid. It is a practically white powder having a calculated molecular weight of 364.42, and the following structural formula: Structral Formula

Buprenorphine and naloxone sublingual tablet, USP is an orange, round flat-faced beveled edge tablet, debossed with an alphanumeric word identifying the product strength. It contains buprenorphine HCl, a partial agonist at the mu-opioid receptor, and naloxone HCl dihydrate, an opioid receptor antagonist, at a ratio of 4:1 (ratio of free bases). It is intended for sublingual administration and is available in two dosage strengths, 2 mg buprenorphine with 0.5 mg naloxone and 8 mg buprenorphine with 2 mg naloxone. Each sublingual tablet also contains the following inactive ingredients: lactose monohydrate, povidone K29/32, acesulfame potassium, FD&C Yellow No.6 aluminum lake, natural lemon flavor 717297 (corn syrup solids, maltodextrin, modified starch, natural flavorings, tocopherol), citric acid anhydrous, trisodium citrate dihydrate, corn starch, mannitol, and magnesium stearate. Chemically, buprenorphine HCl is (2S)-2-[17-Cyclopropylmethyl-4,5α-epoxy-3-hydroxy-6-methoxy-6α,14-ethano-14α-morphinan-7α-yl]-3,3-dimethylbutan-2-ol hydrochloride. It has the following chemical structure: Buprenorphine HCl has the molecular formula C 29 H 41 NO 4 • HCl and the molecular weight is 504.10. It is a white or off-white crystalline powder, sparingly soluble in water, freely soluble in methanol, soluble in alcohol, and practically insoluble in cyclohexane. Chemically, naloxone HCl dihydrate is 17-Allyl-4,5α-epoxy-3, 14-dihydroxymorphinan-6-one hydrochloride dihydrate. It has the following chemical structure: Naloxone hydrochloride dihydrate has the molecular formula C 19 H 21 NO 4 • HCl • 2H 2 O and the molecular weight is 399.87. It is a white to slightly off-white powder and is freely soluble in water, soluble in alcohol, and practically insoluble in toluene and ether. Buprenorphine Structural Formula Naloxone Structural Formula

Bupropion Hydrochloride Extended-release Tablets, USP (SR), an antidepressant of the aminoketone class, is chemically unrelated to tricyclic, tetracyclic, selective serotonin re-uptake inhibitor, or other known antidepressant agents. Its structure closely resembles that of diethylpropion; it is related to phenylethylamines. It is designated as (±)-1-(3-chlorophenyl)-2-[(1,1‑ dimethylethyl)amino]-1-propanone hydrochloride. The molecular weight is 276.2. The molecular formula is C 13 H 18 ClNO•HCl. Bupropion hydrochloride powder is white, crystalline, and highly soluble in water. It has a bitter taste and produces the sensation of local anesthesia on the oral mucosa. The structural formula is: Bupropion Hydrochloride Extended-release Tablets, USP (SR) are supplied for oral administration as 100 mg, 150 mg, and 200 mg white to off-white, film-coated, extended-release tablets. Each tablet contains the labeled amount of bupropion hydrochloride, USP and the following inactive ingredients: hydroxypropyl cellulose, microcrystalline cellulose, colloidal silicon dioxide, stearic acid, and magnesium stearate. The film coating contains lactose monohydrate, hydroxypropyl cellulose, titanium dioxide, and polyethylene glycol. Chemical Structure

Bupropion hydrochloride, an antidepressant of the aminoketone class, is chemically unrelated to tricyclic, tetracyclic, selective serotonin re-uptake inhibitor, or other known antidepressant agents. Its structure closely resembles that of diethylpropion; it is related to phenylethylamines. It is designated as (±)-1-(3-chlorophenyl)-2-[(1,1-dimethylethyl)amino]-1-propanone hydrochloride. The molecular weight is 276.21 g/mol. The molecular formula is C 13 H 18 ClNO•HCl. Bupropion hydrochloride powder is white to off-white crystalline, and highly soluble in water. It has a bitter taste and produces the sensation of local anesthesia on the oral mucosa. The structural formula is: Bupropion hydrochloride is supplied for oral administration as 75-mg (orange) and 100-mg (purple) film-coated tablets. Each tablet contains the labeled amount of bupropion hydrochloride and the following inactive ingredients: 75-mg tablet –colloidal silicon dioxide, crospovidone, FD&C Yellow #6 Aluminum Lake, fumaric acid granular, hydroxypropyl cellulose, hypromellose, magnesium stearate, methylcellulose, polyethylene glycol and titanium dioxide. 100-mg tablet –colloidal silicon dioxide, crospovidone, D&C Red #7 Calcium Lake, fumaric acid granular, hydroxypropyl cellulose, hypromellose, magnesium stearate, methylcellulose, polyethylene glycol and titanium dioxide. Structural Formula

Bupropion hydrochloride, an antidepressant of the aminoketone class, is chemically unrelated to tricyclic, tetracyclic, selective serotonin reuptake inhibitor, or other known antidepressant agents. Its structure closely resembles that of diethylpropion; it is related to phenylethylamines. It is designated as (±)-1-(3-chorophenyl)-2-[(1,1-dimethylethyl)amino]-1 propanone hydrochloride. The molecular weight is 276.21. The molecular formula is C 13 H 18 ClNO•HCl. Bupropion hydrochloride powder is white and soluble in water. It has a bitter taste and produces the sensation of local anesthesia on the oral mucosa. The structural formula is: Bupropion hydrochloride extended-release tablet USP (XL) is supplied for oral administration as 150 mg and 300 mg, off-white to pale yellow extended-release tablets. Each tablet contains the labeled amount of bupropion hydrochloride and the inactive ingredients: ammonium hydroxide, colloidal silicon dioxide, dibutyl sebacate, ethylcellulose, glyceryl behenate, hydrophobic colloidal silica, hydroxypropyl cellulose, iron oxide black, L-cysteine hydrochloride monohydrate, methacrylic acid copolymer dispersion, polyvinyl alcohol, povidone, propylene glycol, shellac and triethyl citrate. The tablets are printed with edible black ink. The insoluble shell of the extended-release tablet may remain intact during gastrointestinal transit and is eliminated in the feces. The Drug Product Meets USP Dissolution Test 20. Structural Formula

Buspirone hydrochloride tablets, USP are an antianxiety agent that is not chemically or pharmacologically related to the benzodiazepines, barbiturates, or other sedative/anxiolytic drugs. Buspirone hydrochloride, USP is a white crystalline powder. It is very soluble in water; freely soluble in methanol and in methylene chloride; sparingly soluble in ethanol and in acetonitrile; very slightly soluble in ethyl acetate and practically insoluble in hexanes. Its molecular weight is 422. Chemically, buspirone hydrochloride is 8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-dione monohydrochloride. The molecular formula C 21 H 31 N 5 O 2 •HCl is represented by the following structural formula: Each buspirone hydrochloride tablet intended for oral administration contains 5 mg or 7.5 mg or 10 mg or 15 mg or 30 mg buspirone hydrochloride (equivalent to 4.6 mg, 6.85 mg, 9.1 mg, 13.7 mg, and 27.4 mg of buspirone free base, respectively). In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose and sodium starch glycolate. The 5 mg and 10 mg tablets are scored so they can be bisected. Thus, the 5 mg tablet can also provide 2.5 mg dose, and the 10 mg tablet can provide a 5 mg dose. The 15 mg and 30 mg tablets are scored so they can be either bisected or trisected. Thus, a single 15 mg tablet can provide the following doses: 15 mg (entire tablet), 10 mg (two thirds of a tablet), 7.5 mg (one half of a tablet), or 5 mg (one third of a tablet). A single 30 mg tablet can provide the following doses: 30 mg (entire tablet), 20 mg (two thirds of a tablet), 15 mg (one half of a tablet), or 10 mg (one third of a tablet). Structural Formula

Butalbital, Acetaminophen and Caffeine Tablets, USP are supplied in tablet form for oral administration. Each tablet contains the following active ingredients: butalbital, USP ...................................................................................... 50 mg acetaminophen, USP ........................................................................... 325 mg caffeine, USP ........................................................................................ 40 mg Inactive Ingredients: colloidal silicon dioxide, croscarmellose sodium, crospovidone, magnesium stearate, microcrystalline cellulose, povidone, pregelatinized starch, and stearic acid. Butalbital (5-allyl-5-isobutylbarbituric acid), is a short to intermediate-acting barbiturate. It has the following structural formula: Acetaminophen (4'-hydroxyacetanilide), is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula. Caffeine (1,3,7-trimethylxanthine), is a central nervous system stimulant. It has the following structural formula: Structural Formula Butalbital Structural Formula Acetaminophen Structural Formula Caffeine

Calcitriol is a synthetic vitamin D analog which is active in the regulation of the absorption of calcium from the gastrointestinal tract and its utilization in the body. Calcitriol is available as capsules containing 0.25 mcg or 0.5 mcg calcitriol All dosage forms contain butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) as antioxidants. The capsules contain medium chain triglycerides. Gelatin capsule shells contain glycerin, sorbitol, with the following dye systems: 0.25-mcg FD&C Yellow No. 6, FD&C red No.3 and titanium dioxide; 0.5 mcg- FD&C Yellow No. 6, FD&C red No.3 and titanium dioxide. The imprinting ink contains propylene glycol, shellac, black iron oxide, isopropyl alcohol, N-butyl alcohol and ammonium hydroxide. Calcitriol is a white, crystalline compound which occurs naturally in humans. It has a calculated molecular weight of 416.65 and is soluble in organic solvents but relatively insoluble in water. Chemically, calcitriol is 9,10-seco(5Z,7E)-5,7,10(19) cholestatriene-1α, 3β, 25-triol and has the following structural formula: The other names frequently used for calcitriol are lα,25-dihydroxycholecalciferol, 1, 25-dihydroxyvitamin D 3 , 1,25-DHCC, 1,25(OH) 2 D 3 and 1,25-diOHC. Calcitriol

Calcium acetate acts as a phosphate binder. Its chemical name is calcium acetate. Its molecular formula is C 4 H 6 CaO 4 , and its molecular weight is 158.17. Its structural formula is: Each white opaque/blue opaque capsule contains 667 mg of calcium acetate, USP (anhydrous; Ca(CH 3 COO) 2 ; MW=158.17 grams) equal to 169 mg (8.45 mEq) calcium, polyethylene glycol 8000 and magnesium stearate. Each capsule shell contains black monogramming ink, FD&C Blue #1, FD&C Red #3, gelatin and titanium dioxide. The black monogramming ink contains ammonium hydroxide, iron oxide black, isopropyl alcohol, n-butyl alcohol, propylene glycol and shellac glaze. Calcium Acetate Capsules, USP are administered orally for the control of hyperphosphatemia in end-stage renal failure. Structural Formula

Capecitabine, USP is a nucleoside metabolic inhibitor. The chemical name is 5’-deoxy-5-fluoro-N-[(pentyloxy) carbonyl]-cytidine and has a molecular formula of C 15 H 22 FN 3 O 6 and a molecular weight of 359.35. Capecitabine, USP has the following structural formula: Capecitabine, USP is a white to off-white crystalline powder with an aqueous solubility of 26 mg/mL at 20°C. Capecitabine tablets, USP are supplied as oblong, film-coated, biconvex, unscored tablets for oral administration. Each peach to light peach-colored tablet contains 150 mg or 500 mg capecitabine, USP. The inactive ingredients are as follows: anhydrous lactose, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, red iron oxide, talc, titanium dioxide, and yellow iron oxide. Structural Formula

Captopril Tablets, USP are a specific competitive inhibitor of angiotensin I-converting enzyme (ACE), the enzyme responsible for the conversion of angiotensin I to angiotensin II. Captopril is designated chemically as 1-[(2S)-3-mercapto-2-methylpropionyl]-L-proline and has the following structural formula: Captopril is a white to off-white crystalline powder that may have a slight sulfurous odor; it is soluble in water (approx. 160 mg/mL), methanol, and ethanol and sparingly soluble in chloroform and ethyl acetate. Each tablet for oral administration contains 12.5 mg, 25 mg, 50 mg or 100 mg of captopril. In addition, each tablet contains the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, microcrystalline cellulose, sodium starch glycolate (derived from potato), starch (derived from corn), and stearic acid. Structural Formula

Carbamazepine USP, is an anticonvulsant and specific analgesic for trigeminal neuralgia, available for oral administration as chewable tablets of 100 mg and tablets of 100 mg, 200 mg, 300 mg, 400 mg. Its chemical name is 5 H -dibenz[ b,f ]azepine-5-carboxamide, and its structural formula is: Carbamazepine USP is a white to off-white powder, practically insoluble in water and soluble in alcohol and in acetone. Its molecular weight is 236.27. Carbamazepine tablets, USP, 100 mg, 200 mg, 300 mg and 400 mg contain the inactive ingredients: colloidal silicon dioxide, FD&C Red #40 aluminum lake, hypromellose, magnesium stearate, pregelatinized maize starch, corn starch, and sodium starch glycolate. Carbamazepine tablets, USP, (chewable) contain the inactive ingredients: artificial flavors, colloidal silicon dioxide, compressible sugar, corn starch, FD&C Red #40 aluminum lake, hydroxypropyl methyl cellulose, magnesium stearate, and sodium starch glycolate. Carbamazepine tablets, USP, 100 mg, 200 mg, 300 mg, and 400 mg meet USP Dissolution Test 2 and Carbamazepine Tablets USP (Chewable), 100 mg meet USP Dissolution Test 1. Structural Formula

Before prescribing Carbamazepine Extended-Release Tablets, the physician should be thoroughly familiar with the details of this prescribing information, particularly regarding use with other drugs, especially those which accentuate toxicity potential. DESCRIPTION Carbamazepine Extended-Release Tablets, Carbamazepine USP, is an anticonvulsant and specific analgesic for trigeminal neuralgia, available for oral administration as extended release tablets of 100, 200, and 400 mg. Its chemical name is 5 H -dibenz[ b,f ]azepine-5-carboxamide, and its structural formula is: Carbamazepine USP is a white to off-white powder, soluble to very slightly soluble in alcohol and in acetone, practically insoluble in water. Its molecular weight is 236.27. Inactive Ingredients : cellulose acetate, dextrates, ferric oxide (100 mg - yellow, 200 mg – red and 400 mg – yellow & red), hydroxyethyl cellulose, hypromellose, magnesium stearate, mannitol, opacode black ink S-1-277001 (ferrosoferric oxide, propylene glycol, shellac glaze), polyethylene glycol, sodium lauryl sulfate, titanium dioxide (200 mg tablets only). Product meets USP Dissolution Test 4 structure