micro labs limited - Medication Listings

Atorvastatin calcium is an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase. Atorvastatin calcium is [R-(R*, R*)]-2-(4-fluorophenyl)-ß, δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1Hpyrrole-1-heptanoic acid, calcium salt (2:1) trihydrate. The molecular formula of atorvastatin calcium is (C 33 H 34 FN 2 O 5 ) 2 Ca•3H 2 O and its molecular weight is 1209.42. Its structural formula is: Atorvastatin calcium, USP is a white to off-white crystalline powder that is insoluble in aqueous solutions of pH 4 and below. Atorvastatin calcium, USP is insoluble to very slightly soluble in distilled water, pH 7.4 phosphate buffer, and acetonitrile; slightly soluble in ethanol; and soluble to freely soluble in methanol. Atorvastatin calcium tablets for oral use contain atorvastatin 10 mg, 20 mg, 40 mg, or 80 mg (equivalent to 10.36 mg, 20.72 mg, 41.44 mg, or 82.88 mg atorvastatin calcium anhydrous) and the following inactive ingredients: calcium carbonate, croscarmellose sodium, hydroxyl propyl cellulose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polysorbate 80. The tablets are coated with opadry white YS-1-7040 which contains hypromellose, polyethylene glycol, talc, titanium dioxide. atorvastatin-str.jpg

Metformin hydrochloride extended-release tablets, USP contains the biguanide antihyperglycemic agent metformin in the form of monohydrochloride salt. The chemical name of metformin hydrochloride is N,N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown: Metformin hydrochloride USP is a white crystalline powder with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.63. Metformin hydrochloride, USP is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pKa of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended release tablets, USP are modified release dosage forms that contain 500 mg or 1000 mg of metformin HCl. Each 500 mg tablet containsAmmonio Methacrylate Copolymer Type A, Coloring (Hypromellose, FD&C Blue#2/Indigo Carmine, Titanium Dioxide, Triethyl Citrate), Glyceryl dibehenate, Hydroxypropyl cellulose, Hypromellose, Magnesium Stearate, Methacralic Acid and Methyl Methacrylate Coplymer (1:1), Microcrystalline cellulose, Povidone, Talc, Triethyl citrate. Each 1000 mg tablet contains Ammonio Methacrylate Copolymer Type A, Glyceryl behenate, Hydroxypropyl cellulose, Hypromellose, Magnesium Stearate ,Methacralic Acid and Methyl Methacrylate Coplymer (1:1), Microcrystalline cellulose, Povidone, Talc, Triethyl citrate. FDA approved dissolution test specifications differ from USP. strc

Losartan potassium tablets USP is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[ p -( o -1 H ­-tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt. Its molecular formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium USP is a white to off-white free-flowing crystalline powder with a molecular weight of 461.01. It is freely soluble in water, soluble in alcohols, and slightly soluble in common organic solvents, such as acetonitrile and methyl ethyl ketone. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium and the following inactive ingredients: Microcrystalline cellulose, lactose monohydrate, pregelatinized starch, magnesium stearate, Opadry white (hydroxypropyl cellulose, hypromellose, and titanium dioxide). Losartan potassium 25 mg, 50 mg and 100 mg tablets contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. losartanpotassium-stru.jpg

Furosemide is a diuretic which is an anthranilic acid derivative. Chemically, it is 4-chloro -N -furfuryl-5-sulfamoylanthranilic acid. Furosemide Injection USP, 10 mg/mL is a sterile, non-pyrogenic solution in vials for intravenous and intramuscular injection. Furosemide, USP is a white to slightly yellowish, odorless crystalline powder. It is practically insoluble in water, sparingly soluble in alcohol, freely soluble in dilute alkali solutions and insoluble in dilute acids. The structural formula is as follows: Each mL contains: Furosemide, USP 10 mg, water for injection q.s., sodium chloride for isotonicity, sodium hydroxide and, if necessary, hydrochloric acid to adjust pH between 8.0 and 9.3. furosemide-str.jpg

Formulations of Amoxicillin capsules, USP contain amoxicillin USP, a semisynthetic antibiotic, 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]heptane­2-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. Each capsule, for oral administration, contains 250 mg or 500 mg amoxicillin as the trihydrate. Inactive ingredients: black iron oxide, gelatin, magnesium stearate, potassium hydroxide, propylene glycol, shellac, strong ammonia, talc, and titanium dioxide. amoxicillin-structure.jpg

Celecoxib capsule is a nonsteroidal anti-inflammatory drug, available as capsules containing 50 mg, 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 or almost white crystalline powder with a pKa of 11.1 (sulfonamide moiety). Celecoxib USP is hydrophobic (log P is 3.5) and is soluble in ethanol and in methylene chloride, practically insoluble in water. The inactive ingredients in celecoxib capsules include: croscarmellose sodium, lactose monohydrate, magnesium stearate, povidone and sodium lauryl sulfate. The empty hard gelatin capsule shell contains gelatin and titanium dioxide. The capsules are printed with ink containing black iron oxide, potassium hydroxide, propylene glycol and shellac. celecoxib-strct.jpg

Fluoxetine capsule, 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. Each capsule contains fluoxetine hydrochloride equivalent to 10 mg (32.3 µmol), 20 mg (64.7 µmol), or 40 mg (129.3 µmol) of fluoxetine. The capsules also contain the following inactive ingredients: pregelatinized starch, gelatin, iron oxide yellow, sodium lauryl sulfate and titanium dioxide. In addition, the 10 mg capsule contains FD&C Blue No. 1; the 20 mg capsule contains patent blue V; and the 40 mg capsule also contains patent blue V, ponceau 4R and D&C Yellow No. 10. The imprinting ink contains shellac, black iron oxide, propylene glycol, potassium hydroxide, dehydrated alcohol, isopropyl alcohol, butyl alcohol and strong ammonia solution. FDA approved dissolution test and specification differ from USP. structure

Acetazolamide extended-release capsules, USP 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: Molecular Weight 222.24 Chemical Formula C 4 H 6 N 4 O 3 S 2 Acetazolamide extended-release capsules, USP are, for oral administration, each containing 500 mg of acetazolamide and the following inactive ingredients: hydroxypropyl cellulose, microcrystalline cellulose, sodium lauryl sulfate and talc. The ingredients in the capsule shell are D&C RED no. 28, D&C YELLOW no. 10, FD&C RED no. 40, gelatin and titanium dioxide. The ingredients in the imprinting ink are shellac (24 to 27%), dehydrated alcohol (23 to 26%), isopropyl alcohol (1 to 3%), butyl alcohol (1 to 3%), propylene glycol (3 to 7%), strong ammonia solution (1 to 2%), black iron oxide (24 to 28%), potassium hydroxide (0.05 to 0.1%) and purified water (15 to 18%). FDA approved dissolution test specifications differ from USP acetazolamide-str.jpg

Amlodipine and olmesartan medoxomil provided as a tablet for oral administration, is a combination of the calcium channel blocker (CCB) amlodipine besylate and the angiotensin II receptor blocker (ARB) olmesartan medoxomil. The amlodipine besylate component of amlodipine and olmesartan medoxomil tablets is chemically described as 3-ethyl-5­ methyl (±)-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5­-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S. Olmesartan medoxomil, a prodrug, is hydrolyzed to olmesartan during absorption from the gastrointestinal tract. The olmesartan medoxomil component of amlodipine and olmesartan medoxomil tablets is chemically described as 2,3­ dihydroxy-2-butenyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[ p-(o -1H-tetrazol-5­-ylphenyl)benzyl]imidazole-5-carboxylate, cyclic 2,3-carbonate. Its molecular formula is C 29 H 30 N 6 O 6 . The structural formula for amlodipine besylate is: The structural formula for olmesartan medoxomil is: Amlodipine and olmesartan medoxomil tablets contain amlodipine besylate USP, a white or almost white powder, and olmesartan medoxomil USP, a white to off white, crystalline powder. The molecular weights of amlodipine besylate and olmesartan medoxomil are 567.1 and 558.59, respectively. Amlodipine besylate is freely soluble in methanol, sparingly soluble in ethanol and slightly soluble in 2-propanol and in water. Olmesartan medoxomil is sparingly soluble in methanol and practically insoluble in water. Tablet Strength 5/20 mg Each tablet of amlodipine and olmesartan medoxomil tablets also contains the following inactive ingredients: croscarmellose sodium, magnesium stearate, pregelatinized starch, silicified microcrystalline cellulose and the color coatings contain polyvinyl alcohol, titanium dioxide, macrogol and talc (opadry II white). Tablet Strength 5/40 mg Each tablet of amlodipine and olmesartan medoxomil tablets also contains the following inactive ingredients: croscarmellose sodium, magnesium stearate, pregelatinized starch, silicified microcrystalline cellulose and the color coatings contain polyvinyl alcohol, titanium dioxide, macrogol, talc and iron oxide yellow (opadry II yellow). Tablet Strength 10/20 mg Each tablet of amlodipine and olmesartan medoxomil tablets also contains the following inactive ingredients: croscarmellose sodium, magnesium stearate, pregelatinized starch, silicified microcrystalline cellulose and the color coatings contain polyvinyl alcohol, titanium dioxide, macrogol, talc, iron oxide yellow and iron oxide red (opadry II beige). Tablet Strength 10/40 mg Each tablet of amlodipine and olmesartan medoxomil tablets also contains the following inactive ingredients: croscarmellose sodium, magnesium stearate, pregelatinized starch, silicified microcrystalline cellulose and the color coatings contain polyvinyl alcohol, titanium dioxide, macrogol, talc, iron oxide yellow, iron oxide red and ferrosoferric oxide/ iron oxide black (opadry II brown). amlodipine structure olmesartan structure

Amoxicillin and clavulanate potassium tablets, USP is 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, USP is ( 2S,5R,6R )-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, USP 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: Amoxicillin and Clavulanate Potassium Tablets, USP: 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, USP). 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, USP). 875 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, USP). Inactive Ingredients: colloidal silicon dioxide, ethylcellulose, hypromellose, magnesium stearate, microcrystalline cellulose, propylene glycol, sodium starch glycolate, talc and titanium dioxide. Each tablet of amoxicillin and clavulanate potassium tablets contains 0.63 mEq potassium. amoxi-stra.jpg amoxi-strb.jpg

Amoxicillin and clavulanate potassium for oral suspension, USP is 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, USP is ( 2S,5R,6R )-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, USP 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: Amoxicillin and Clavulanate Potassium for Oral Suspension, USP: 200 mg/28.5 mg : Following constitution, each 5 mL of oral suspension contains 200 mg of amoxicillin, USP as the trihydrate, and 28.5 mg of clavulanic acid (equivalent to 34 mg of clavulanate potassium, USP). 400 mg/57 mg: Following constitution, each 5 mL of oral suspension contains 400 mg of amoxicillin, USP as the trihydrate, and 57 mg of clavulanic acid (equivalent to 68 mg of clavulanate potassium, USP). Inactive Ingredients: colloidal silicon dioxide, flavorings (golden caramel, orange flavor and raspberry flavor), xanthan gum, silicon dioxide, succinic acid, hypromellose and aspartame [see Warnings and Precautions ( 5.8 )] Each 5 mL of reconstituted 200 mg/28.5 mg oral suspension of amoxicillin and clavulanate potassium contains 0.14 mEq potassium. Each 5 mL of reconstituted 400 mg/57 mg oral suspension of amoxicillin and clavulanate potassium contains 0.29 mEq potassium. The compositions of flavors are listed below: Orange flavor – Flavoring preparation, maltodextrin (maize), modified starch E1450 (waxy maize), nature identical flavoring substance and natural flavoring substance. Raspberry Flavor – Maltodextrin (waxy maize), modified starch E1450 (waxy maize), nature identical flavoring substance and propylene glycol. Golden Caramel Flavor – Acetic acid, artificial flavors, maltodextrin, natural flavors and triethyl citrate amoxiclavu-stra.jpg amoxiclavu-strb.jpg

Amoxicillin and clavulanate potassium for oral suspension USP, 600 mg/42.9 mg per 5 mL is an oral antibacterial combination consisting of the semisynthetic antibacterial amoxicillin and the beta-lactamase inhibitor, clavulanate potassium (the potassium salt of clavulanic acid). Amoxicillin is an analog of ampicillin, derived from the basic penicillin nucleus, 6-aminopenicillanic acid. The amoxicillin, USP molecular formula is C 16 H 19 N 3 O 5 S•3H 2 O, and the molecular weight is 419.4. Chemically, amoxicillin is (2 S ,5 R ,6 R )-6-[( R )-2-amino­-2-(4-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 a wide variety of beta-lactamases by blocking the active sites of these enzymes. Clavulanic acid is particularly active against the clinically important plasmid-mediated beta-lactamases frequently responsible for transferred drug resistance to penicillins and cephalosporins. The clavulanate potassium molecular formula is C 8 H 8 KNO 5 and the molecular weight is 237.3. Chemically, clavulanate potassium is potassium ( Z )-(2 R ,5 R )-3-(2-Hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylic acid and may be represented structurally as: Following constitution, each 5 mL of oral suspension contains 600 mg of amoxicillin, USP as the trihydrate and 42.9 mg of clavulanic acid (equivalent to 51.1 mg of clavulanate potassium). Inactive Ingredients: Aspartame, citric acid anhydrous, colloidal silicon dioxide, hypromellose, mannitol, orange flavour, trisodium citrate dihydrate, and xanthan gum [see Warnings and Precautions ( 5.8 )] . Each 5 mL of reconstituted amoxicillin and clavulanate potassium for oral suspension USP, 600 mg/42.9 mg per 5 mL contains 0.23 mEq potassium. amoxi-strua.jpg amoxi-strub.jpg

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-dihydroxybutanedioate (1:1 salt), and its established structural formula is as follows: The molecular weight of arformoterol tartrate is 494.5 g/mol, and its empirical 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 of light brown color powder that is soluble in dimethyl sulphoxide, slightly soluble in water and methanol, insoluble in ethyl acetate. 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 between 4.7 and 5.3 with citric acid and trisodium citrate dihydrate. 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 ™ 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 ). arformoterol-str.jpg

Aspirin and extended-release dipyridamole capsule is a combination antiplatelet agent intended for oral administration. Each hard gelatin capsule contains 200 mg dipyridamole in an extended-release form and 25 mg aspirin, as an immediate-release. In addition, each capsule contains the following inactive ingredients: caprylic/capric mono/diglycerides, D&C yellow #10 Aluminum Lake, FD&C blue #1/brilliant blue FCF Aluminum Lake, glyceryl monostearate, hypromellose, methacrylic acid and methacrylate copolymer, microcrystalline cellulose, povidone K30, polyethylene glycol, polyvinyl alcohol, sodium lauryl sulfate, talc, tartaric acid, titanium dioxide, triacetin and triethyl citrate. Each capsule shell contains gelatin, ferric oxide red, ferric oxide yellow, titanium dioxide and water. Black imprint ink composition contains ferrosoferric oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. Dipyridamole USP Dipyridamole USP is an antiplatelet agent chemically described as 2,2',2'',2'''-[(4,8-Dipiperidinopyrimido[5,4- d ]pyrimidine-2,6-diyl)dinitrilo]-tetraethanol. It has the following structural formula: Dipyridamole is an odorless yellow crystalline substance, having a bitter taste. It is soluble in dilute acids, methanol and chloroform, and is practically insoluble in water. Aspirin USP The antiplatelet agent aspirin (acetylsalicylic acid) is chemically known as benzoic acid, 2-(acetyloxy)-, and has the following structural formula: Aspirin is an odorless white needle-like crystalline or powdery substance. When exposed to moisture, aspirin hydrolyzes into salicylic and acetic acids, and gives off a vinegary odor. It is highly lipid soluble and slightly soluble in water. Aspirin Structure

Baclofen, USP is a muscle relaxant and antispastic. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid. The structural formula is: Molecular Formula. C 10 H 12 ClNO 2 Molecular Weight. 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 or 20 mg baclofen, USP. In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, dibasic calcium phosphate dihydrate, magnesium stearate, microcrystalline cellulose and sodium starch glycolate. baclofen-str.jpg

Bimatoprost ophthalmic solution 0.03% is a synthetic prostamide analog with ocular hypotensive activity. Its chemical name is ( Z )-7-[(1 R ,2 R ,3 R ,5 S )-3,5-Dihydroxy-2-[(1E,3S)-3-hydroxy-5-phenyl-1-pentenyl]cyclopentyl]-5- N -ethylheptenamide, and its molecular weight is 415.58. Its molecular formula is C 25 H 37 NO 4 . Its chemical structure is: Bimatoprost is a powder, which is very soluble in ethyl alcohol and methyl alcohol and slightly soluble in water. Bimatoprost ophthalmic solution 0.03% is clear, colorless solution, practically free from particles with an osmolality of approximately 290 mOsmol/kg. Bimatoprost ophthalmic solution 0.03% contains Active: Bimatoprost 0.3 mg/mL; Preservative: benzalkonium chloride 0.05 mg/mL; Inactives: sodium chloride; disodium hydrogen phosphate, heptahydrate, citric acid monohydrate and water for injection. Sodium hydroxide and/or hydrochloric acid may be added to adjust pH. The pH during its shelf life ranges from 6.9 to 7.6. bimatoprost_stru.jpg

Brimonidine tartrate ophthalmic solution 0.2%, sterile, is a relatively selective alpha-2 adrenergic receptor agonist (topical intraocular pressure lowering agent). The structural formula of brimonidine tartrate is: Chemical name: 5-Bromo-6-(2-imidazoline-2-ylamino)quinoxaline L-tartrate (1:1) Molecular formula: C 15 H 16 BrN 5 O 6 Molecular weight: 442.22 g/mol. In solution, brimonidine tartrate ophthalmic solution 0.2% has a clear, greenish-yellow color. It has an osmolality of 280 to 330 mOsml/kg and a pH of 5.9 to 6.5. Each mL of brimonidine tartrate ophthalmic solution contains the active ingredient brimonidine tartrate 0.2% (2 mg/mL) with the inactive ingredients benzalkonium chloride 0.005% (0.05 mg/mL) as a preservative; citric acid monohydrate; polyvinyl alcohol; sodium chloride; tri sodium citrate dihydrate; and water for injection. Hydrochloric acid and/or sodium hydroxide may be added to adjust pH. brimonidine-str.jpg

Bupropion hydrochloride tablets USP, 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 USP is white powder, soluble in water in 0.1 N hydrochloric acid, and in alcohol. It has a bitter taste and produces the sensation of local anesthesia on the oral mucosa. The structural formula is: Bupropion hydrochloride tablets USP are supplied for oral administration as 75 mg (yellow) and 100 mg (red) film-coated tablets. Each tablet contains the labeled amount of bupropion hydrochloride and the inactive ingredients: 75 mg tablets contains cysteine hydrochloride, Low-substituted hydroxypropyl cellulose, hypromellose, microcrystalline cellulose, stearic acid, D&C yellow No.10 aluminum lake, triacetin, titanium dioxide, FD&C yellow No 6, hydroxypropyl cellulose. 100 mg tablets contains cysteine hydrochloride, Low-substituted hydroxypropyl cellulose, hypromellose, microcrystalline cellulose, stearic acid, triacetin, FD&C Red No 40, FD&C yellow No 6, titanium dioxide, hydroxypropyl cellulose. structure

Caffeine Citrate Oral Solution, USP is clear, colorless, sterile, non-pyrogenic, preservative-free, aqueous solutions adjusted to pH 4.7. Each mL contains 20 mg caffeine citrate (equivalent to 10 mg of caffeine base) prepared in solution by the addition of 10 mg caffeine anhydrous to 5 mg citric acid monohydrate, 8.3 mg trisodium citrate dihydrate and Water for Injection. Caffeine USP, a central nervous system stimulant, is an odorless white crystalline powder or granule, with a bitter taste. It is sparingly soluble in water and in ethanol at room temperature. The chemical name of caffeine is 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione. In the presence of citric acid it forms caffeine citrate salt in solution. The structural formula and molecular weight of caffeine citrate follows. structure

Caffeine citrate Injection, USP for intravenous administration is a clear, colorless, sterile, non-pyrogenic, preservative-free, aqueous solution adjusted to pH 4.7. Each mL contains 20 mg caffeine citrate (equivalent to 10 mg of caffeine base) prepared in solution by the addition of 10 mg caffeine anhydrous to 5 mg citric acid monohydrate, 8.3 mg trisodium citrate dihydrate and Water for Injection. Caffeine USP, a central nervous system stimulant, is an odorless white crystalline substance or granule, with a bitter taste. It is freely soluble in chloroform, sparingly soluble in water and in alcohol, slightly soluble in ether. The chemical name of caffeine is 3,7-dihydro-1,3,7-trimethyl-1 H -purine-2,6-dione. In the presence of citric acid it forms caffeine citrate salt in solution. The structural formula and molecular weight of caffeine citrate follows. Structure

Carboprost tromethamine injection, USP, an oxytocic, contains the tromethamine salt of the (15S)-15 methyl analogue of naturally occurring prostaglandin F2α in a solution suitable for intramuscular injection. Carboprost tromethamine is the established name for the active ingredient in carboprost tromethamine injection, USP. Four other chemical names are: (15S)-15-methyl prostaglandin F2α tromethamine salt 7-(3α,5α-dihydroxy-2ß-[(3S)-3-hydroxy-3-methyl- trans -1-octenyl]-1α-cyclopentyl]- cis -5-heptenoic acid compound with 2-amino-2-(hydroxymethyl)-1,3-propanediol (15S)-9α,11α,15-trihydroxy-15-methylprosta- cis -5, trans -13-dienoic acid tromethamine salt (15S)-15-methyl PGF2α-THAM The structural formula is represented below: The molecular formula is C 25 H 47 O 8 N. The molecular weight of carboprost tromethamine is 489.64. It is a white to slightly off-white crystalline powder. It generally melts between 95° and 105° C, depending on the rate of heating. Carboprost tromethamine dissolves readily in water at room temperature at a concentration greater than 75 mg/mL. Each mL of carboprost tromethamine injection, USP contains carboprost tromethamine, USP equivalent to 250 mcg of carboprost, 83 mcg tromethamine, 9 mg sodium chloride, and 9.45 mg benzyl alcohol added as preservative. When necessary, pH is adjusted with sodium hydroxide and/or hydrochloric acid. The solution is sterile. carboprost-stru.jpg

Chlordiazepoxide and amitriptyline hydrochloride tablets, USP combine for oral administration, chlordiazepoxide, an agent for the relief of anxiety and tension, and amitriptyline, an antidepressant. It is available in as white, round, biconvex film-coated tablets debossed 'CA2'on one side and the other side is plain, each containing 10 mg chlordiazepoxide and 25 mg amitriptyline (as the hydrochloride salt); and in green, round, biconvex, film-coated tablets debossed 'CA1 'on one side and the other side is plain, each containing 5 mg chlordiazepoxide and 12.5 mg amitriptyline (as the hydrochloride salt). Each tablet also contains hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, silicon dioxide, sodium starch glycolate, talc and titanium dioxide. In addition, the 10 mg/25 mg tablet contains polyethylene glycol 400 and 5 mg/12.5 mg tablet contains D&C YELLOW NO.10, FD&C BLUE NO.1, FD & C YELLOW NO. 6 and polyethylene glycol 6000. Chlordiazepoxide USP is a benzodiazepine with the formula 7-chloro-2-(methyl-amino)-5­-phenyl- 3H -1,4-benzodiazepine 4-oxide. It is a slightly yellow crystalline material and is insoluble in water. The molecular weight is 299.76. Amitriptyline Hydrochloride USP is a dibenzocycloheptadiene derivative. The formula is 10,11-dihydro- N,N- dimethyl-5H-dibenzo [a,d] cycloheptene-Δ 5, γ -propylamine hydrochloride. It is a white or practically white crystalline compound that is freely soluble in water. The molecular weight is 313.87.

Chlordiazepoxide hydrochloride and clidinium bromide capsules, USP is a fixed-combination of chlordiazepoxide hydrochloride, a benzodiazepine, and clidinium bromide, an anticholinergic. Each chlordiazepoxide hydrochloride and clidinium bromide capsules USP, 5 mg/2.5 mg contains the active ingredients 5 mg chlordiazepoxide hydrochloride and 2.5 mg clidinium bromide. Each capsule also contains the inactive ingredients lactose monohydrate, magnesium stearate, pregelatinised starch, talc, D&C Yellow No. 10, FD&C Blue No. 1, gelatin, and titanium dioxide. The imprinting ink contains black iron oxide, potassium hydroxide, and shellac. Chlordiazepoxide hydrochloride is 7-chloro-2-methylamino-5-phenyl-3H-1,4-benzodiazepine 4-oxide hydrochloride. A colorless, crystalline substance, it is soluble in water. It is unstable in solution and the powder must be protected from light. The molecular weight is 336.22. The structural formula of chlordiazepoxide hydrochloride is as follows: Clidinium bromide is a synthetic anticholinergic agent which has been shown in experimental and clinical studies to have antispasmodic and antisecretory effects on the gastrointestinal tract. Structurally clidinium bromide is: The drug product meets USP Dissolution Test 2. chlrodiazepoxideandclidinium-structure.jpg chlrodiazepoxideandclidinium-structure1.jpg

Clindamycin hydrochloride USP is the hydrated hydrochloride salt of clindamycin. Clindamycin is a semisynthetic antibiotic produced by a 7(S)-chloro-substitution of the 7(R)-hydroxyl group of the parent compound lincomycin. Clindamycin hydrochloride capsules USP contain clindamycin hydrochloride USP equivalent to 75 mg, 150 mg, or 300 mg of clindamycin. Inactive ingredients: corn starch, lactose monohydrate, magnesium stearate and talc. Composition of empty hard gelatin capsule shells: For 75 mg strength-size ‘3’: FD&C Blue 1, D&C Yellow 10, gelatin and water. For 150 mg Strength-Size ‘2’: titanium dioxide, FD&C Blue 1, D&C Yellow 10, gelatin and water. For 300 mg Strength-Size ‘0’: FD&C Blue 1, titanium dioxide, gelatin and water. The empty hard gelatin capsules are printed with TekPrint ™ SW-0012 White Ink. Composition of imprinting ink [TekPrint ™ SW-0012 White Ink] utilized for printing on the capsule shell are presented below: Shellac–NF, Dehydrated alcohol–USP, Isopropyl alcohol–USP, Butyl alcohol–NF, Propylene glycol–USP, Strong ammonia solution–NF, Purified water–USP, Potassium hydroxide–NF, Titanium dioxide USP. The structural formula is represented below: The chemical name for clindamycin hydrochloride is Methyl 7-chloro-6,7,8-trideoxy-6-(1-methyl- trans -4-propyl-L-2-pyrrolidinecarboxamido)-1-thio-L- threo - α -D- galacto -octopyranoside monohydrochloride. clindamycinhcl-str.jpg

Clobazam tablet is a benzodiazepine derivative. The chemical name of clobazam is 7-Chloro-1-methyl-5-phenyl-1H-1,5 benzodiazepine-2,4(3H,5H)-dione with the following structure: Clobazam is a white or almost white, crystalline powder with a slightly bitter taste; is slightly soluble in water, sparingly soluble in ethanol, and freely soluble in methylenechloride. The melting range of clobazam is from 182ºC to 185ºC. The molecular formula is C 16 H 13 O 2 N 2 Cl and the molecular weight is 300.7. Each clobazam tablet contains 10 mg or 20 mg of clobazam. Tablets also contain as inactive ingredients: colloidal silicon dioxide, lactose monohydrate, lactose anhydrous, magnesium stearate, maize starch 5%, pregelatinized starch, and talc. Structure

Clomipramine hydrochloride capsules, USP are an antiobsessional drug that belongs to the class (dibenzazepine) of pharmacologic agents known as tricyclic antidepressants. Clomipramine hydrochloride capsules, USP are available as capsules of 25, 50, and 75 mg for oral administration. Clomipramine hydrochloride USP is 3-chloro-5-[3-(dimethylamino)propyl]-10,11-dihydro-5 H -dibenz[b,f ]azepine monohydrochloride, and its structural formula is: Clomipramine hydrochloride USP is a white to faintly yellow crystalline powder. It is freely soluble in water, in methanol, and in methylene chloride, and insoluble in ethyl ether and in hexane. Inactive Ingredients: magnesium stearate and pregelatinized starch (corn). In addition, the 25 mg capsule shell contains: D&C Yellow No. 10, gelatin, iron oxide yellow and titanium dioxide. The 50 mg capsule shell contains: D&C Yellow No. 10, FD&C Blue No. 1, gelatin and titanium dioxide. The 75 mg capsule shell contains: D&C Yellow No. 10, gelatin and titanium dioxide. The black imprinting ink contains: black iron oxide and shellac. FDA approved dissolution test specifications differ from USP structure

Each 5 mL ampule of Cromolyn Sodium Oral Solution (Concentrate) contains 100 mg cromolyn sodium, USP, in Water for Injection. Cromolyn sodium is a hygroscopic, white powder having little odor. It may leave a slightly bitter aftertaste. Cromolyn Sodium Oral Solution (Concentrate) 100 mg/5 mL is clear, colorless, and sterile. It is intended for oral use. Chemically, cromolyn sodium is disodium 5,5’-[(2-hydroxytrimethylene)dioxy]bis[4-oxo-4H-1-benzopyran-2-carboxylate]. The molecular formula is C 23 H 14 Na 2 O 11 ; the molecular weight is 512.34. Its chemical structure is: Pharmacologic Category: Mast cell stabilizer Therapeutic Category: Antiallergic str-a

The active ingredient of cromolyn sodium inhalation solution, USP is cromolyn sodium, USP. It is an inhaled anti-inflammatory agent for the preventive management of asthma. Cromolyn sodium, USP is chemically designated as disodium 5,5'-[(2-hydroxytrimethylene)dioxy]bis[4-oxo-4 H -1-benzopyran-2- carboxylate]. The molecular formula is C 23 H 14 Na 2 O 11 ; the molecular weight is 512.34. Cromolyn sodium, USP is a water soluble, odorless, white, hydrated crystalline powder. It is tasteless at first, but leaves a slightly bitter after taste. Cromolyn sodium inhalation solution, USP is clear, colorless to pale yellow, sterile, and has a target pH of 5.5. The molecular structure is: Each 2 mL ampule of cromolyn sodium, USP contains 20 mg cromolyn sodium, USP in water for injection, USP. cromolynsodium-structure.jpg

Dalfampridine extended-release tablet is a potassium channel blocker, available in a 10 mg tablet strength. Each tablet contains 10 mg dalfampridine, formulated as an extended-release tablet for twice-daily oral administration. Dalfampridine is also known by its chemical name, 4-aminopyridine, with the following structure: Dalfampridine extended-release tablets are available in a 10 mg strength and are white to off-white colored oval shaped biconvex film coated tablet debossed with “C51” on one side and plain on other side. Tablet dimensions are approximately 13 mm (Length) and 8 mm (Width). Inactive ingredients consist of hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycols, silicon dioxide and titanium dioxide. Dalfampridine is a fine white to off-white powder with a molecular weight of 94.1, CAS 504-24-5, and a molecular formula of C 5 H 6 N 2 . At ambient conditions, dalfampridine is soluble in water, methanol, acetone, tetrahydrofuran, isopropanol, acetonitrile, N,N-dimethylformamide, dimethylsulfoxide, and ethanol. structure

Dexamethasone sodium phosphate injection, USP is a sterile, water-soluble inorganic ester of dexamethasone which produces a rapid response even when injected intramuscularly. Dexamethasone sodium phosphate, C 22 H 28 FNa 2 O 8 P, has a molecular weight of 516.40 and chemically is Pregna-1,4-diene-3,20-dione, 9-fluoro-11, 17-dihydroxy-16-methyl-21-(phosphonooxy)-, disodium salt, (11β,16α). It occurs as a white or almost white powder, is exceedingly hygroscopic, is soluble in water and its solutions have a pH between 7.5 and 10.5. It has the following structural formula: Dexamethasone sodium phosphate injection, USP is available in 10 mg/mL concentration. Each mL of dexamethasone sodium phosphate injection USP, 10 mg/mL (Preservative Free), contains dexamethasone sodium phosphate, USP equivalent to 10 mg dexamethasone phosphate; 24.75 mg trisodium citrate, dihydrate for tonicity adjustment; and water for injection, q.s. pH adjusted with citric acid monohydrate or sodium hydroxide, if necessary. pH: 7.4 to 8.2. dexa-str.jpg

Diclofenac sodium and misoprostol delayed-release tablets, USP is a combination product containing diclofenac sodium, an NSAID with analgesic properties, and misoprostol, a gastrointestinal (GI) mucosal protective prostaglandin-1 (PGE1) analog. Diclofenac sodium and misoprostol delayed-release tablets are white to off-white, round, biconvex, and approximately 11 mm in diameter. Each tablet consists of an enteric-coated core containing 50 mg (diclofenac sodium and misoprostol delayed-release tablets 50 mg/200 mcg) or 75 mg (diclofenac sodium and misoprostol delayed-release tablets 75 mg/200 mcg) of diclofenac sodium (equivalent to 46.39 mg or 69.58 mg of diclofenac, respectively) surrounded by an outer mantle containing 200 mcg misoprostol. Diclofenac sodium, USP is a phenylacetic acid derivative that is a white to off-white, virtually odorless, crystalline powder. Diclofenac sodium, USP is freely soluble in methanol, soluble in ethanol, and practically insoluble in chloroform and in dilute acid. Diclofenac sodium, USP is sparingly soluble in water. Its chemical formula and name are: C 14 H 10 Cl 2 NO 2 Na [M.W. = 318.14] 2-[(2,6-dichlorophenyl) amino] benzeneacetic acid, monosodium salt. Misoprostol is a water-soluble, viscous liquid that contains approximately equal amounts of two diastereomers. Its chemical formula and name are: C 22 H 38 O 5 [M.W. = 382.54] (±) methyl 11α,16-dihydroxy-16-methyl-9-oxoprost-13E-en-1-oate. Inactive ingredients in diclofenac sodium and misoprostol delayed-release tablets include: colloidal silicon dioxide; corn starch; crospovidone; hydrogenated castor oil; hypromellose; lactose monohydrate; magnesium stearate; methacrylic acid copolymer; microcrystalline cellulose; povidone; sodium hydroxide; talc; triethyl citrate. FDA approved dissolution test specifications differ from USP

Diphenhydramine hydrochloride USP is an antihistamine drug having the chemical name 2-(Diphenylmethoxy)-N,N-dimethylethylamine hydrochloride. It occurs as a white, crystalline powder, is freely soluble in water and alcohol and has a molecular weight of 291.82. The molecular formula is C 17 H 21 NO • HCI. The structural formula is as follows: Diphenhydramine hydrochloride USP in the parenteral form is a sterile, pyrogen-free solution available in a concentration of 50 mg of diphenhydramine hydrochloride USP per mL. The solutions for parenteral use have been adjusted to a pH between 4 and 6.5 with either sodium hydroxide or hydrochloric acid. structure

Diphenhydramine hydrochloride, USP is an antihistamine drug having the chemical name 2- (Diphenylmethoxy)-N, N-dimethylethylamine hydrochloride. It occurs as a white, odourless, crystalline powder, is freely soluble in water and alcohol and has a molecular weight of 291.8. The molecular formula is C 17 H 21 NO • HCl. The structural formula is as follows: Diphenhydramine hydrochloride, USP in the parenteral form is a sterile, pyrogen-free solution available in a concentration of 50 mg of diphenhydramine hydrochloride, USP per mL. The solutions for parenteral use have been adjusted to a pH between 5.0 and 6.0 with either sodium hydroxide or hydrochloric acid and contains 0.1 mg/mL benzethonium chloride as a germicidal agent. diphenhydramine-str.jpg

Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) is the combination of a topical carbonic anhydrase inhibitor and a topical beta-adrenergic receptor blocking agent. Dorzolamide hydrochloride, USP is described chemically as: (4 S-trans )-4-(ethylamino)-5,6-dihydro-6­ methyl-4 H -thieno[2,3- b ]thiopyran-2-sulfonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride is optically active. The specific rotation is: [α] 25°C (C=1, water) = ~ -17°. 405 nm Its empirical formula is C 10 H 16 N 2 O 4 S 3 •HCl and its structural formula is: Dorzolamide hydrochloride USP has a molecular weight of 360.91. It is a white to off-white, crystalline powder, which is soluble in water and slightly soluble in methanol and ethanol. Timolol maleate USP is described chemically as: (-)-1-( tert -butylamino)-3-[(4-morpholino-1,2,5­ thiadiazol-3-yl)oxy]-2-propanol maleate (1:1) (salt). Timolol maleate possesses an asymmetric carbon atom in its structure and is provided as the levo-isomer. The optical rotation of timolol maleate is: [α] 25°C in 1N HCl (C = 5) = -12.2° (-11.7° to -12.5°). 405 nm Its molecular formula is C 13 H 24 N 4 O 3 S•C 4 H 4 O 4 and its structural formula is: Timolol maleate USP has a molecular weight of 432.50. It is a white, odorless, crystalline powder which is soluble in water, methanol, and alcohol. Timolol maleate is stable at room temperature. Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) is supplied as a sterile, clear, colorless to nearly colorless, isotonic, buffered, slightly viscous, aqueous solution. The pH of the solution is approximately 5.65, and the osmolarity is 242 to 323 mOsM. Each mL of dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) contains 20 mg dorzolamide (22.26 mg of dorzolamide hydrochloride) and 5 mg timolol (6.83 mg timolol maleate). Inactive ingredients are mannitol, hydroxyethyl cellulose, sodium hydroxide, trisodium citrate dihydrate and water for injection. Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) does not contain a preservative. dorzolamidetimolol-stra.jpg structure2

Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP is the combination of a topical carbonic anhydrase inhibitor and a topical beta-adrenergic receptor blocking agent. Dorzolamide hydrochloride USP is described chemically as: (4 S-trans )-4-(ethylamino)-5,6-dihydro-6- methyl-4 H -thieno[2,3- b ]thiopyran-2-sulfonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride is optically active. The specific rotation is: [α] 25°C (C=1, water) = ~ -17°. 405nm Its molecular formula is C 10 H 16 N 2 O 4 S 3 •HCl and its structural formula is: Dorzolamide hydrochloride USP has a molecular weight of 360.91. It is a white to off-white, crystalline powder, which is soluble in water and slightly soluble in methanol and ethanol. Timolol maleate USP is described chemically as: (-)-1-( tert -butylamino)-3-[(4-morpholino-1,2,5-thiadiazol-3-yl)oxy]-2-propanol maleate (1:1) (salt). Timolol maleate possesses an asymmetric carbon atom in its structure and is provided as the levo-isomer. The optical rotation of timolol maleate is: [α] 25° C in 1N HCl (C = 5) = -12.2° (-11.7° to -12.5°). 405 nm Its molecular formula is C 13 H 24 N 4 O 3 S•C 4 H 4 O 4 and its structural formula is: Timolol maleate USP has a molecular weight of 432.50. It is a white, odorless, crystalline powder which is soluble in water, methanol, and alcohol. Timolol maleate is stable at room temperature. Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP is supplied as a sterile, isotonic, buffered, clear, colorless to nearly colorless and slightly viscous solution. The pH of the solution is approximately 5.65, and the osmolarity is 242 to 323 mOsM. Each mL of dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP contains 20 mg dorzolamide (22.26 mg of dorzolamide hydrochloride USP) and 5 mg timolol (6.83 mg timolol maleate USP). Inactive ingredients are Mannitol, Hydroxyethyl cellulose, Sodium hydroxide, Tri Sodium citrate Dihydrate, and water for injection. Benzalkonium chloride 0.0075% is added as a preservative. dorzolamide structure timolol structure

Dorzolamide hydrochloride ophthalmic solution, USP is a carbonic anhydrase inhibitor formulated for topical ophthalmic use. Dorzolamide hydrochloride USP is described chemically as: (4 S-trans )-4-(ethylamino)-5,6-dihydro-6-methyl-4 H -thieno[2,3- b ]thiopyran-2-sulfonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride is optically active. The specific rotation is α 25° (C=1, water) = ~ -17°. 405 Its molecular formula is C 10 H 16 N 2 O 4 S 3 •HCl and its structural formula is: Dorzolamide hydrochloride USP has a molecular weight of 360.9 and a melting point of about 264°C. It is a white to off-white, crystalline powder, which is soluble in water and slightly soluble in methanol and ethanol. Dorzolamide hydrochloride ophthalmic solution USP is supplied as a sterile, isotonic, buffered, clear, colorless to nearly colorless and slightly viscous solution. The pH of the solution is approximately 5.6, and the osmolarity is 260 to 330 mOsM. Each mL of dorzolamide hydrochloride ophthalmic solution 2% contains 20 mg dorzolamide (22.3 mg of dorzolamide hydrochloride USP). Inactive ingredients are Mannitol, Hydroxyethyl cellulose, Sodium hydroxide, Tri Sodium citrate dihydrate, and water for injection. Benzalkonium chloride 0.0075% is added as a preservative. dorzolamide-structure.jpg

Doxepin is a tricyclic antidepressant. The molecular formula of doxepin hydrochloride, USP is C 19 H 21 NO•HCl with a molecular weight of 315.84. It is a white crystalline solid soluble in water, lower alcohols and chloroform. Doxepin is a dibenzoxepin derivative. Specifically, it is an isomeric mixture of: 1-Propanamine, 3-dibenz[ b , e ]oxepin-11(6 H )ylidene- N , N -dimethyl-, hydrochloride. It structural formula of doxepin is shown below. Doxepin hydrochloride capsules, USP are for oral administration. Active ingredients for the capsules include: 10 mg, 25 mg, 50 mg, 75 mg, and 100 mg of doxepin (equivalent to 11.30 mg, 28.26 mg, 56.52 mg, 84.78 mg, and 113.05 mg of doxepin hydrochloride, respectively). Inactive ingredients: magnesium stearate, pregelatinised starch, silicified microcrystalline cellulose and sodium lauryl sulfate. The hard gelatin capsule shells contain gelatin, sodium lauryl sulfate and titanium dioxide. In addition, the 10 mg, 25 mg and 50 mg capsule shells contains FD&C Yellow No. 5 and FD&C Red 40; and 75 mg and 100 mg capsules shells contains D&C Yellow 10 and FD&C Green 3. The imprinting black ink contains black iron oxide, potassium hydroxide and shellac. Meets USP Dissolution Test 3. doxepin-stra.jpg

The active ingredient in famotidine for oral suspension, USP is a H 2 -receptor antagonist. Famotidine is N' -(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]propanimidamide. The empirical formula of famotidine is C 8 H 15 N 7 O 2 S 3 and its molecular weight is 337.45. Its structural formula is: Famotidine, USP is a white to pale yellowish white crystalline powder that is freely soluble in glacial acetic acid and dimethylformamide, slightly soluble in methanol, very slightly soluble in water, and practically insoluble in acetone, in alcohol, in chloroform, in ether and in ethyl acetate. Each 5 mL of famotidine for oral suspension when prepared as directed contains 40 mg of famotidine, USP and the following inactive ingredients: citric acid monohydrate, flavors (strawberry, orange), powdered cellulose, sucrose and xanthan gum. Added as preservatives are sodium benzoate, sodium methylparaben and sodium propylparaben. famotidine-str.jpg

Fenofibric acid delayed-release capsules (fenofibric acid) are a peroxisome proliferator-activated receptor (PPAR) alpha agonist available as delayed release capsules for oral administration. Each delayed release capsule contains choline fenofibrate, equivalent to 45 mg or 135 mg of fenofibric acid. The chemical name for choline fenofibrate is ethanaminium, 2-hydroxy-N,N,N-trimethyl, 2-{4-(4-chlorobenzoyl)phenoxy] -2-methylpropanoate (1:1) with the following structural formula: The molecular formula is C 22 H 28 ClNO 5 and the molecular weight is 421.91. Choline fenofibrate is freely soluble in methanol, sparingly soluble in ethanol and water, slightly soluble in DMSO and practically insoluble in dichloromethane. The melting point is approximately 210°C. Choline fenofibrate is a white to off white crystalline powder, which is stable under ordinary conditions. Each delayed release capsule contains enteric coated mini-tablets comprised of choline fenofibrate and the following inactive ingredients: hypromellose, hydroxypropyl cellulose, methacrylic acid - ethyl acrylate copolymer (1:1) type A , microcrystalline cellulose, povidone K30, silicon dioxide, sodium stearyl fumarate, talc, triethyl citrate. The capsule shell of the 45 mg capsule contains the following inactive ingredients: ferrosoferric oxide, ferric oxide red, gelatin and titanium dioxide. The capsule shell of the 135 mg capsule contains the following inactive ingredients: FD&C blue no.1, FD&C red no.3, FD&C red no. 40, gelatin and titanium dioxide. fenofibricacid-str.jpg

Formoterol fumarate inhalation solution is supplied as 2 mL of formoterol fumarate inhalation solution packaged in a 3 mL single-use low-density polyethylene vial and overwrapped in a foil pouch . Each vial contains 2 mL of a clear, colorless solution composed of formoterol fumarate dihydrate, USP equivalent to 20 mcg of formoterol fumarate in an isotonic, sterile aqueous solution containing sodium chloride, pH adjusted between 4.5 and 5.5 with citric acid monohydrate and trisodium citrate dihydrate. The active component of formoterol fumarate inhalation solution is formoterol fumarate dihydrate, USP, a racemate. Formoterol fumarate dihydrate is a beta 2 -adrenergic bronchodilator. Its chemical name is(±)-2’-Hydroxy-5’-[(R*)-1-hydroxy-2-[[(R*)-p-methoxy- α -methylphenethyl]amino]ethyl]formanilide fumarate (2:1) (salt), dihydrate; its structural formula is: Formoterol fumarate dihydrate, USP has a molecular weight of 840.91 and its empirical formula is (C 19 H 24 N 2 O 4 ) 2 •C 4 H 4 O 4 •2H 2 O. Formoterol fumarate dihydrate, USP is a white or almost white or slightly yellow powder, which is freely soluble in dimethyl sulphoxide and in acetic acid, soluble in methanol, slightly soluble in 2-propanol, very slightly soluble in water, practically insoluble in acetonitrile and in diethyl ether. Formoterol fumarate inhalation solution does not require dilution prior to administration by nebulization. Like all other nebulized treatments, the amount delivered to the lungs will depend on patient factors and the nebulization system used and its performance. Using the PARI-LC Plus ® nebulizer (with a facemask or mouthpiece) connected to a PRONEB ® Ultra compressor under in vitro conditions, the mean delivered dose from the mouthpiece was approximately 7.3 mcg (37% of label claim). The mean nebulizer flow rate was 4 LPM and the nebulization time was 9 minutes. Formoterol fumarate inhalation solution should be administered from a standard jet nebulizer at adequate flow rates via a facemask or mouthpiece. formoterol-str.jpg

Glimepiride tablets, USP are an oral sulfonylurea that contains the active ingredient glimepiride. Chemically, glimepiride is identified as 1-[[p-[2-(3-ethyl-4-methyl-2-oxo-3-pyrroline-1-carboxamido) ethyl]phenyl]sulfonyl]-3-(trans-4-methylcyclohexyl)urea (C 24 H 34 N 4 O 5 S) with a molecular weight of 490.62. Glimepiride USP is a white to almost white, crystalline, odorless to practically odorless powder and is practically insoluble in water. The structural formula is: Glimepiride tablets, USP contain the active ingredient glimepiride and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone, sodium lauryl sulfate and sodium starch glycolate. In addition, Glimepiride 1 mg tablets contain Ferric Oxide Red, Glimepiride 2 mg tablets contain FD&C Blue #2 Indigo carmine Lake and Ferric Oxide Yellow, Glimepiride 3 mg tablets contain Ferric Oxide Yellow, Glimepiride 4 mg tablets contain FD&C Blue #2 Indigo carmine Lake and Glimepiride 6 mg tablets contain Ferric Oxide Red. structure

Isoproterenol hydrochloride is 3,4-Dihydroxy-α-[(isopropylamino)methyl] benzyl alcohol hydrochloride, a beta-adrenergic agonist and a synthetic sympathomimetic amine that is structurally related to epinephrine. The molecular formula is C 11 H 17 NO 3 · HCl. It has a molecular weight of 247.72 and the following structural formula: Isoproterenol hydrochloride is a racemic compound. Each milliliter of the sterile solution contains: Isoproterenol hydrochloride, USP 0.2 mg Edetate Disodium (EDTA) Dihydrate 0.2 mg Tri Sodium Citrate Dihydrate 2.07 mg Citric Acid, Anhydrous 2.5 mg Sodium Chloride 7.0 mg Water for Injection qs 1.0 mL The pH is adjusted between 3.0 and 3.5 with hydrochloric acid and/or sodium hydroxide. The sterile solution is nonpyrogenic and can be administered by the intravenous route. isoproteranol-strc.jpg

Ketorolac tromethamine ophthalmic solution 0.5% is a member of the pyrrolo-­pyrrole group of nonsteroidal anti-inflammatory drugs (NSAIDs) for topical ophthalmic use. Its chemical name is (±)-5-Benzoyl-2,3-dihydro-1Hpyrrolizine-1-carboxylic acid, compound with 2-amino-2-(hydroxy methyl)-1,3-propanediol (1:1) and it has the following structure: Ketorolac tromethamine ophthalmic solution 0.5% is supplied as a sterile isotonic aqueous 0.5% solution, with a pH of 7.4. Ketorolac tromethamine ophthalmic solution 0.5% contains a racemic mixture of R-(+) and S-(-)- ketorolac tromethamine. Ketorolac tromethamine may exist in three crystal forms. All forms are equally soluble in water. The pKa of ketorolac is 3.5. This white to off-white crystalline substance discolors on prolonged exposure to light. The molecular weight of ketorolac tromethamine is 376.41. The osmolality of ketorolac tromethamine ophthalmic solution 0.5% is 290 mOsmol/kg. Each mL of ketorolac tromethamine ophthalmic solution contains: Active: ketorolac tromethamine 0.5%. Preservative: benzalkonium chloride 0.01%. Inactives: edetate disodium 0.1%; octoxynol 40; water for injection; sodium chloride; hydrochloric acid and/or sodium hydroxide to adjust the pH. ketorolactromethamine-stru.jpg

Latanoprost is a prostaglandin F 2α analogue. Its chemical name is isopropyl-(Z)-7[(1R,2R,3R,5S)3,5- dihydroxy-2-[(3R)-3-hydroxy-5-phenylpentyl]cyclopentyl]-5-heptenoate. Its molecular formula is C 26 H 40 O 5 and its chemical structure is: Latanoprost is a colorless to yellow thick hygroscopic oil that is very soluble in acetonitrile and freely soluble in acetonitrile, ethanol, chloroform and dimethyl sulfoxide. It is practically insoluble in water. Latanoprost ophthalmic solution 0.005% is supplied as a sterile, isotonic, buffered aqueous solution of latanoprost with a pH of approximately 6.7 and an osmolality of approximately 267 mOsmol/kg. Each mL of latanoprost ophthalmic solution contains 50 mcg of latanoprost. benzalkonium chloride, 0.02% is added as a preservative. The inactive ingredients are: disodium hydrogen phosphate anhydrous, sodium chloride, sodium dihydrogen phosphate monohydrate and water for injection. One drop contains approximately 1.5 mcg of latanoprost. latanoprost-stru

Levetiracetam injection, USP is an antiepileptic drug available as a clear, colorless, sterile solution (100 mg/mL) for intravenous administration. The chemical name of levetiracetam, a single enantiomer, is (-)-(S)-α-ethyl-2-oxo-1-pyrrolidine acetamide, its molecular formula is C 8 H 14 N 2 O 2 and its molecular weight is 170.21. Levetiracetam is chemically unrelated to existing antiepileptic drugs (AEDs). It has the following structural formula: Levetiracetam is a white to off-white crystalline powder with a faint odor and a bitter taste. It is very soluble in water (104 g/100 mL). It is freely soluble in chloroform (65.3 g/100 mL) and in methanol (53.6 g/100 mL), soluble in ethanol (16.5 g/100 mL), sparingly soluble in acetonitrile (5.7 g/100 mL) and practically insoluble in n-hexane. (Solubility limits are expressed as g/100 mL solvent.) Levetiracetam injection, USP contains 100 mg of levetiracetam per mL. It is supplied in single-dose 5 mL vials containing 500 mg levetiracetam, water for injection, 45 mg sodium chloride, and buffered at approximately pH 5.5 with glacial acetic acid and 8.2 mg sodium acetate trihydrate. Levetiracetam injection, USP must be diluted prior to intravenous infusion [ see Dosage and Administration (2.6) ]. levitiracetam-strc.jpg

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

Levocetirizine dihydrochloride, the active component of levocetirizine dihydrochloride tablet USP, is an orally active H 1 -receptor antagonist. The chemical name is (R)-[2-[4-[(4-chlorophenyl) phenylmethyl]-1-piperazinyl] ethoxy] acetic acid dihydrochloride. Levocetirizine dihydrochloride is the R enantiomer of cetirizine hydrochloride, a racemic compound with antihistaminic properties. The molecular formula of levocetirizine dihydrochloride is C 21 H 25 ClN 2 O 3 •2HCl. The molecular weight is 461.82 and the chemical structure is shown below: Levocetirizine dihydrochloride is a white to off white powder and is freely soluble in water and in methanol. Levocetirizine dihydrochloride tablets USP, 5 mg are formulated as immediate release, white to off white, oval shaped biconvex, film-coated tablet for oral administration. The tablets are debossed with 'I' and '12' on one side and score line on the other side. Inactive ingredients are: microcrystalline cellulose, lactose monohydrate, colloidal silicon dioxide, and magnesium stearate. The film coating contains hypromellose, titanium dioxide, and polyethylene glycol. levo-strct.jpg

Levofloxacin ophthalmic solution 1.5% is a sterile topical ophthalmic solution. Levofloxacin is a fluoroquinolone antibacterial active against a broad spectrum of Gram-positive and Gram-negative ocular pathogens. Levofloxacin is a fluorinated 4-quinolone containing a six-member (pyridobenzoxazine) ring from positions 1 to 8 of the basic ring structure. Levofloxacin is the pure (-)-( S )-enantiomer of the racemic drug substance, ofloxacin. It is more soluble in water at neutral pH than ofloxacin. C 18 H 20 FN 3 O 4 ·½ H2O Mol Wt 370.38 Chemical Name: (-)-(S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7 H - pyrido[1,2,3- de ]-1,4 benzoxazine-6-carboxylic acid hemihydrate. Levofloxacin (hemihydrate) USP is a yellowish-white crystalline powder. Each mL of levofloxacin ophthalmic solution contains 15.36 mg of levofloxacin hemihydrate USP equivalent to 15 mg levofloxacin. Contains: Active: Levofloxacin (hemihydrate) USP is a light yellowish-white; Inactives: glycerin and water for injection. May also contain hydrochloric acid and/or sodium hydroxide to adjust pH to approximately 6.7. Levofloxacin ophthalmic solution is isotonic with an osmolality of approximately 291 mOsm/kg. levofloxacin structure

Lincomycin injection, USP is a sterile solution containing lincomycin hydrochloride which is the monohydrated salt of lincomycin, a lincosamide antibacterial produced by the growth of a member of the lincolnensis group of Streptomyces lincolnensis (Fam. Streptomycetaceae ). The chemical name for lincomycin hydrochloride is Methyl 6,8-dideoxy-6-(1-methyl-trans-4-propyl-L­2-pyrolidinecarboxamido)-1-thio-D-erythro-α-D-galacto-octopyranoside monohydrochloride monohydrate. The molecular formula of lincomycin hydrochloride is C 18 H 34 N 2 O 6 S.HCl.H 2 O and the molecular weight is 461.01. The structural formula is represented below: Lincomycin hydrochloride is a white or practically white, crystalline powder. Its solutions are acid and are dextrorotatory. Lincomycin hydrochloride is freely soluble in water; soluble in dimethylformamide and insoluble in acetone. Lincomycin Injection, USP contains lincomycin hydrochloride in a sterile, clear, colorless to slightly yellow solution with benzyl alcohol used as a preservative 9.45 mg/mL, and water for injection. Lincomycin injection, USP is a sterile solution for intramuscular and intravenous use. Lincomycin injection, USP is supplied in 2 mL and 10 mL multiple-dose vials containing 300 mg/mL of lincomycin (equivalent to 340 mg/mL of lincomycin hydrochloride, USP). strc

Mefenamic acid capsules, USP contains active moiety mefenamic acid, USP which is a member of the fenamate group of nonsteroidal anti-inflammatory drugs (NSAIDs). The chemical name of mefenamic acid, USP is N-2,3-xylylanthranilic acid. The molecular weight is 241.29 g/mol. Its molecular formula is C 15 H 15 N0 2 and the structural formula of mefenamic acid is: Mefenamic acid, USP is a white to greyish-white, odorless, microcrystalline powder with a melting point of 230° to 231°C and water solubility of 0.004% at pH 7.1. Mefenamic acid capsule, USP is for oral administration. Each capsule contains 250 mg of mefenamic acid, USP and lactose monohydrate. The capsule shell contains D&C yellow No. 10; FD&C blue No. 1; FD&C red No. 3; FD&C yellow No. 6; gelatin, sodium lauryl sulfate, titanium dioxide, black iron oxide, propylene glycol & shellac. mefenamic-structure.jpg