dr.reddy's laboratories limited - Medication Listings

Montelukast sodium USP, the active ingredient in montelukast sodium tablets, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium USP is described chemically as [R-(E)]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl) ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid, monosodium salt. The molecular formula is C 35 H 35 CINNaO 3 S, and its molecular weight is 608.18. The structural formula is: Montelukast sodium USP is white or almost white amorphous powder, hygroscopic in nature. Montelukast Sodium USP is freely soluble in water, methylene chloride and ethanol (96%). Each 10 mg film-coated montelukast sodium tablet USP, contains 10.4 mg montelukast sodium USP, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate and microcrystalline cellulose. The film coating consists of: hypromellose, iron oxide yellow, iron oxide red, iron oxide black , polyethyleneglycol 400 and titanium dioxide. Each 4 mg and 5 mg montelukast sodium chewable tablet contains 4.2 and 5.2 mg montelukast sodium USP, respectively, which are equivalent to 4 and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: aspartame, cherry flavor, croscarmellose sodium, hydroxypropyl cellulose, mannitol, magnesium stearate, microcrystalline cellulose and red ferric oxide.

The active ingredient in pantoprazole sodium delayed-release tablets USP, a PPI, is a substituted benzimidazole, sodium 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1H- benzimidazole sesquihydrate, a compound that inhibits gastric acid secretion. Its molecular formula is C 16 H 14 F 2 N 3 NaO 4 S x 1.5 H 2 O, with a molecular weight of 432.4. The structural formula is: Pantoprazole sodium sesquihydrate is a white to cream color powder and is racemic. Pantoprazole has weakly basic and acidic properties. Pantoprazole sodium sesquihydrate is freely soluble in water and ethanol. The stability of the compound in aqueous solution is pH-dependent. The rate of degradation increases with decreasing pH. At ambient temperature, the degradation half-life is approximately 2.8 hours at pH 5 and approximately 220 hours at pH 7.8. Pantoprazole sodium USP is supplied as a delayed-release tablet, available in two strengths 20 mg pantoprazole (equivalent to 22.6 mg of pantoprazole sodium sesquihydrate) and 40 mg pantoprazole (equivalent to 45.1 mg of pantoprazole sodium sesquihydrate). Pantoprazole sodium delayed-release tablets USP contains the following inactive ingredients: ammonium hydroxide, calcium stearate, crospovidone, hydroxypropyl cellulose, hypromellose, iron oxide black, isopropyl alcohol, mannitol, methacrylic acid copolymer, methylated spirit, N-butyl alcohol, polyethylene glycol, propylene glycol, shellac, sodium carbonate anhydrous, synthetic yellow iron oxide, talc, titanium dioxide, triethyl citrate, zein. Pantoprazole sodium delayed-release tablets meets USP dissolution test 5.

Fluoxetine tablets 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 molecular 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 powder, sparingly soluble in water and in dichloromethane; freely soluble in methanol, and in alcohol, practically insoluble in ether. Each tablet contains fluoxetine hydrochloride USP equivalent to 10 mg (32.3 µmol) and 20 mg (64.7 µmol) of fluoxetine. The tablet also contains colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, and pregelatinized corn starch. In addition, the coating for each tablet contains FD&C Blue #1 (10 mg), hydroxypropyl methylcellulose, polyethylene glycol, and titanium dioxide.

Fluoxetine delayed-release capsules USP is a selective serotonin reuptake inhibitor for oral administration. It is also marketed for the treatment of premenstrual dysphoric disorder (Sarafem ® , fluoxetine hydrochloride). It is designated (±)-N-methyl-3-phenyl-3-[(α,α,α-trifluoro-p-tolyl)oxy]propylamine hydrochloride and has the molecular 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 powder. Sparingly soluble in purified water and in methylene chloride; freely soluble in methanol and in alcohol. Practically insoluble in ether. Each delayed release capsule, for oral administration contains white to off-white elliptical to spherical enteric-coated pellets of fluoxetine hydrochloride equivalent to 90 mg (291 µmol) of fluoxetine. The capsules also contain black iron oxide, copovidone, gelatin, glycine, hypromellose, hypromellose phthalate, isopropyl alcohol, methylene chloride, red iron oxide, sugar globules, talc, titanium dioxide, triethyl citrate and yellow iron oxide.

Clopidogrel tablets USP is a thienopyridine class inhibitor of P2Y 12 ADP platelet receptors. Chemically it is methyl (+)-(S)-α-(2-chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridine-5(4H)acetate sulfate (1:1). The molecular formula of clopidogrel bisulfate USP is C 16 H 16 Cl NO 2 S•H 2 SO 4 and its molecular weight is 419.9. The structural formula is as follows: Clopidogrel bisulfate USP is a white to off-white powder. It is freely soluble in methanol and practically insoluble in ether. It has a specific optical rotation of between +53° and + 58°. Clopidogrel for oral administration is provided as white, film coated, round, biconvex tablets debossed with “R” on one side and “196” on other side. Each tablet contains 97.875 mg of clopidogrel bisulfate which is the molar equivalent to 75 mg of clopidogrel base. Each tablet contains colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, mannitol and microcrystalline cellulose as inactive ingredients. The film coating contains hypromellose 2910-5cP, polyethylene glycol 400 and titanium dioxide.

Clopidogrel tablets USP is a thienopyridine class inhibitor of P2Y 12 ADP platelet receptors. Chemically it is methyl (+)-(S)-α-(2-chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridine-5(4H)acetate sulfate (1:1). The molecular formula of clopidogrel bisulfate USP is C 16 H 16 Cl NO 2 S•H 2 SO 4 and its molecular weight is 419.9. The structural formula is as follows: Clopidogrel bisulfate USP is a white to off-white powder. It is freely soluble in methanol and practically insoluble in ether. It has a specific optical rotation of between +53° and + 58°. Clopidogrel for oral administration is provided as pink, oblong shaped, biconvex, film coated tablets debossed with “R” on one side and “671” on the other side. Each tablet contains 391.50 mg of clopidogrel bisulfate USP which is the molar equivalent to 300 mg of clopidogrel base. Each tablet contains croscarmellose sodium, hydrogenated castor oil powder, hydroxypropyl cellulose, hypromellose, mannitol and microcrystalline cellulose as inactive ingredients. The pink film coating contains hypromellose 2910, iron oxide red, polyethylene glycol 400 and titanium dioxide.

Amlodipine and benazepril hydrochloride capsules USP are combination of amlodipine besylate and benazepril hydrochloride. Benazepril hydrochloride USP is a white to off-white crystalline powder. Freely soluble in methanol and ethanol, soluble in water. Benazepril hydrochloride’s chemical name is 3-[[1-(ethoxycarbonyl)-3-phenyl-(1S)- propyl]amino]-2,3,4,5-tetrahydro-2-oxo-1 H -1-(3S)-benzazepine-1-acetic acid monohydrochloride; its structural formula is: Its molecular formula is C 24 H 28 N 2 0 5 •HCl, and its molecular weight is 460.96. Benazeprilat, the active metabolite of benazepril, is a nonsulfhydryl angiotensin-converting enzyme (ACE) inhibitor. Benazepril is converted to benazeprilat by hepatic cleavage of the ester group. Amlodipine besylate USP is a white or almost white powder. Freely soluble in methanol, sparingly soluble in ethanol, slightly soluble in water and in 2-proponal. Its chemical name is (R,S) 3-ethyl-5-methyl-2-(2-aminoethoxymethyl)-4-(2-chlorophenyl)-1,4- dihydro-6-methyl-3,5-pyridinedicarboxylate benzenesulfonate; its structural formula is: Its molecular formula is C 20 H 25 ClN 2 0 5 •C 6 H 6 0 3 S, and its molecular weight is 567.1. Amlodipine besylate is the besylate salt of amlodipine, a dihydropyridine calcium channel blocker. Amlodipine and benazepril hydrochloride capsules, USP are formulated in 6 different strengths for oral administration with a combination of amlodipine besylate equivalent to 2.5 mg, 5 mg or 10 mg of amlodipine, with 10 mg, 20 mg or 40 mg of benazepril hydrochloride providing for the following available combinations: 2.5 mg/10 mg, 5 mg/10 mg, 5 mg/20 mg,5 mg/40 mg, 10 mg/20 mg and 10 mg/40 mg. The inactive ingredients of the capsules are colloidal silicon dioxide, crospovidone, hydrogenated castor oil, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, sodium starch glycolate and talc. Each hard-gelatin capsule contains gelatin, sodium lauryl sulfate, titanium dioxide, D&C yellow # 10 and D&C red # 28, (5 mg/20 mg, 10 mg/40 mg), FD&C blue # 1 and FD&C red # 40 (5 mg/20 mg, 5 mg/40 mg), FD & C Yellow 6 (5 mg/40 mg), FD&C green # 3 (2.5 mg/10 mg), iron oxide black (10 mg/20 mg) and iron oxide red (5 mg/20 mg and 10 mg/20 mg ) as coloring agents.

Amlodipine and benazepril hydrochloride capsules USP are combination of amlodipine besylate and benazepril hydrochloride. Benazepril hydrochloride USP is a white to off-white crystalline powder. Freely soluble in methanol and ethanol, soluble in Water. Benazepril hydrochloride’s chemical name is 3-[[1-(ethoxycarbonyl)-3-phenyl-(1S)- propyl]amino]-2,3,4,5-tetrahydro-2-oxo-1 H -1-(3S)-benzazepine-1-acetic acid monohydrochloride; its structural formula is: Its molecular formula is C 24 H 28 N 2 0 5 •HCl, and its molecular weight is 460.96. Benazeprilat, the active metabolite of benazepril, is a nonsulfhydryl angiotensin-converting enzyme (ACE) inhibitor. Benazepril is converted to benazeprilat by hepatic cleavage of the ester group. Amlodipine besylate USP is a white or almost white powder. Freely soluble in methanol, sparingly soluble in ethanol, slightly soluble in water and in 2-proponal. Its chemical name is (R,S) 3-ethyl-5-methyl-2-(2-aminoethoxymethyl)-4-(2-chlorophenyl)-1,4- dihydro-6-methyl-3,5-pyridinedicarboxylate benzenesulfonate; its structural formula is: Its molecular formula is C 20 H 25 ClN 2 0 5 •C 6 H 6 0 3 S, and its molecular weight is 567.1. Amlodipine besylate is the besylate salt of amlodipine, a dihydropyridine calcium channel blocker. Amlodipine and benazepril hydrochloride capsules, USP are formulated in 6 different strengths for oral administration with a combination of amlodipine besylate equivalent to 2.5 mg, 5 mg or 10 mg of amlodipine, with 10 mg, 20 mg or 40 mg of benazepril hydrochloride providing for the following available combinations: 2.5 mg/10 mg, 5 mg/10 mg, 5 mg/20 mg,5 mg/40 mg, 10 mg/20 mg and 10 mg/40 mg. The inactive ingredients of the capsules are colloidal silicon dioxide, crospovidone, hydrogenated castor oil, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, sodium starch glycolate and talc. Each hard-gelatin capsule contains gelatin, sodium lauryl sulfate, titanium dioxide, D&C yellow # 10 and D&C red # 28, (5 mg/20 mg, 10 mg/40 mg), FD&C blue # 1 and FD&C red # 40 (5 mg/20 mg, 5 mg/40 mg), FD & C Yellow 6 (5 mg/40 mg), FD&C green # 3 (2.5 mg/10 mg), iron oxide black (10 mg/20 mg) and iron oxide red (5 mg/20 mg and 10 mg/20 mg ) as coloring agents.

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

Decitabine is a nucleoside metabolic inhibitor. Decitabine is a white to off white coloured powder with the molecular formula of C 8 H 12 N 4 O 4 and a molecular weight of 228.21. Its chemical name is 4-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,3,5-triazin-2(1 H )-one and it has the following structural formula: Decitabine is soluble in dimethyl sulphoxide and sparingly soluble in water. Decitabine for injection for intravenous use, is a sterile, white to almost white lyophilized powder supplied in a clear colorless glass single-dose vial. Each 20 mL vial contains 50 mg decitabine, 68 mg monobasic potassium phosphate (potassium dihydrogen phosphate) and 11.6 mg sodium hydroxide. Sodium hydroxide is used for pH adjustment.

Divalproex sodium USP is a stable co-ordination compound comprised of sodium valproate and valproic acid in a 1:1 molar relationship and formed during the partial neutralization of valproic acid with 0.5 equivalent of sodium hydroxide. Chemically it is designated as sodium hydrogen bis(2-propylpentanoate). Divalproex sodium USP has the following structure: Divalproex sodium USP occurs as a white to off white powder with a characteristic odor. Divalproex sodium delayed-release tablets USP are for oral administration. Divalproex sodium delayed-release tablets USP are supplied in three dosage strengths containing divalproex sodium USP equivalent to 125 mg, 250 mg, or 500 mg of valproic acid. Inactive Ingredients Divalproex sodium delayed-release tablets USP, contain the following inactive ingredients: Acetone, diacetylated monoglycerides, hypromellose, hypromellose phthalate, isopropyl alcohol, methylene chloride, microcrystalline cellulose, povidone, pregelatinized starch, silicon dioxide, talc, titanium dioxide ,vanillin and opacode black as printing ink. Opacode black contains shellac glaze, iron oxide black,n-butyl alcohol, industrial methylated spirit lecithin, antifoam DC 1510. In addition, individual tablets contain: 125 mg tablets: Ferric oxide (Iron oxide brown). 250 mg tablets: Ferric oxide (Iron oxide yellow). 500 mg tablets: Ferric oxide (Iron oxide red).

The active ingredient in famotidine tablets, USP is a histamine-2 (H 2 ) receptor antagonist. Famotidine is N'-(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio] propanimidamide. The molecular 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: Each famotidine tablet, USP for oral administration contains either 20 mg or 40 mg of famotidine, USP and the following inactive ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, pregelatinized starch and talc. The film coating consists hydroxypropyl methylcellulose, polyethylene glycol, synthetic yellow iron oxide and titanium dioxide. Famotidine, USP is a white to pale yellowish-white, crystalline powder that is freely soluble in dimethylformamide, glacial acetic acid, slightly soluble in methanol, very slightly soluble in water, and practically insoluble in acetone, in alcohol, in chloroform, in ether and in ethyl acetate.

Uses relieves heartburn associated with acid indigestion and sour stomach prevents heartburn associated with acid indigestion and sour stomach brought on by eating or drinking certain food and beverages

Use(s) temporarily relieves these symptoms due to hay fever or other upper respiratory allergies: runny nose sneezing itchy, watery eyes itching of the nose or throat temporarily relieves nasal congestion due to the common cold, hay fever or other upper respiratory allergies reduces swelling of nasal passages temporarily relieves sinus congestion and pressure temporarily restores freer breathing through the nose

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. lamotrigine's chemical name is 3,5-diamino-6-(2,3-dichlorophenyl)-as-triazine, its molecular formula is C 9 H 7 N 5 Cl 2 , and its molecular weight is 256.09. Lamotrigine USP is a white to pale cream-colored powder and has a pKa of 5.56. Lamotrigine USP is slightly soluble in methanol. The structural formula is: Lamotrigine tablets (chewable, dispersible) are supplied for oral administration. The tablets contain 5 mg, or 25 mg of lamotrigine USP and the following inactive ingredients: black currant flavor, colloidal silicon dioxide, crospovidone, magnesium stearate, mannitol (pearlitol SD 200), microcrystalline cellulose (Avicel pH 112), microcrystalline cellulose and guar gum (Avicel CE 15), pregelatinized starch, sodium saccharin, and talc.

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. lamotrigine's chemical name is 3,5-diamino-6-(2,3-dichlorophenyl)-as-triazine, its molecular formula is C 9 H 7 N 5 Cl 2 , and its molecular weight is 256.09. Lamotrigine USP is a white to pale cream-colored powder and has a pKa of 5.56. Lamotrigine USP is slightly soluble in methanol. The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg, and 200 mg tablets. Each tablet contains the labeled amount of lamotrigine USP and the following inactive ingredients: hydroxypropyl cellulose; L- hydroxypropyl cellulose; magnesium stearate; mannitol; powdered cellulose; talc; and ferric oxide yellow. The Drug Product Meets USP Dissolution Test 2.

Lamotrigine extended-release tablets, USP an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. Lamotrigine's chemical name is 3,5-diamino-6-(2,3-dichlorophenyl)- as -triazine, its molecular formula is C 9 H 7 N 5 Cl 2 , and its molecular weight is 256.09. Lamotrigine USP is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine USP is slightly soluble in acetone and in methanol. The structural formula is: Lamotrigine extended-release tablets, USP are supplied for oral administration as 25 mg (yellow), 50 mg (light green), 100 mg (orange), 200 mg (blue), 250 mg (purple) and 300 mg (grey) tablets. Each tablet contains the labeled amount of lamotrigine USP and the following inactive ingredients: D&C Red # 27 (250 mg), FD&C BLUE No. 2 (200 mg and 250 mg), hypromellose, iron oxide black (50 mg and 300 mg), iron oxide yellow (25 mg, 50 mg and 100 mg), iron oxide red (100 mg), lactose monohydrate, magnesium stearate, methacrylic acid copolymer, polyethylene glycol 400, talc, titanium dioxide and triethyl citrate. Tablets are printed with edible black ink which contains iron oxide black and shellac glaze. Lamotrigine extended-release tablets, USP contains modified release, erodible matrix as the core. The core tablet is coated with a modified enteric coat to enable a controlled release of drug in the acidic environment of the stomach. The combination of modified-release core and the modified enteric coating are designed to control the dissolution rate of lamotrigine over a period of approximately 12 to 15 hours, leading to a gradual increase in serum lamotrigine levels. Meets USP Dissolution Test 2 for Lamotrigine extended-release tablets USP, 25 mg, 50 mg, 100 mg, 200 mg and 300 mg and USP Dissolution Test is Pending for Lamotrigine extended-release tablets USP, 250 mg.

Uses temporarily relieves minor aches and pains due to: minor pain of arthritis muscular aches backache menstrual cramps headache toothache the common cold temporarily reduces fever

Olanzapine USP is an atypical antipsychotic that belongs to the thienobenzodiazepine class. The chemical designation is 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b] [1,5]benzodiazepine. The molecular formula is C 17 H 20 N 4 S, which corresponds to a molecular weight of 312.44. The chemical structure is: Olanzapine USP is a yellow crystalline solid, which is practically insoluble in water. Olanzapine orally disintegrating tablets USP are intended for oral administration only. Each orally disintegrating tablet contains olanzapine USP equivalent to 5 mg (16 µmol), 10 mg (32 µmol), 15 mg (48 µmol) or 20 mg (64 µmol). It begins disintegrating in the mouth within seconds, allowing its contents to be subsequently swallowed with or without liquid. Olanzapine orally disintegrating tablets USP also contains the following inactive ingredients: aspartame, colloidal silicon dioxide, crospovidone, magnesium stearate, mannitol, microcrystalline cellulose and guar gum (Avicel CE-15), microcrystalline cellulose (Avicel PH 101), microcrystalline cellulose (Avicel PH 112), pregelatinized starch and sodium lauryl sulphate.

Palonosetron hydrochloride injection contains palonosetron as palonosetron HCl, an antiemetic and antinauseant agent. It is a serotonin-3 (5-HT 3 ) receptor antagonist with a strong binding affinity for this receptor. Chemically, palonosetron hydrochloride is: (3a S) -2-[( S )-1-Azabicyclo [2.2.2]oct-3-yl]-2,3,3a,4,5,6-hexahydro-1-oxo-1 H benz[ de ]isoquinoline hydrochloride. The empirical formula is C 19 H 24 N 2 O.HCl, with a molecular weight of 332.87. Palonosetron hydrochloride exists as a single isomer and has the following structural formula: Palonosetron hydrochloride is a white to off-white crystalline powder. It is freely soluble in water and soluble in methanol. Palonosetron hydrochloride injection is a sterile, clear, colorless, non-pyrogenic, isotonic, buffered solution for intravenous administration. Palonosetron hydrochloride injection is available as a 5 mL or 1.5 mL single-dose vial. Each 5 mL vial contains: 0.25 mg palonosetron (equivalent to 0.28 mg palonosetron HCl), 207.5 mg mannitol, disodium edetate and sodium acetate trihydrate in water for intravenous administration. Each 1.5 mL vial contains: 0.075 mg palonosetron (equivalent to 0.084 mg palonosetron HCl), 62.25 mg mannitol, disodium edetate and sodium acetate trihydrate in water for intravenous administration. The pH of the solution in the 5 mL and 1.5 mL vials is 4.5 to 5.5, Hydrochloric acid or sodium hydroxide may have been added to adjust pH. structure

Pravastatin sodium USP is one of a class of lipid-lowering compounds, the statins, which reduce cholesterol biosynthesis. These agents are competitive inhibitors of HMG-CoA reductase, the enzyme catalyzing the early rate-limiting step in cholesterol biosynthesis, conversion of HMG-CoA to mevalonate. Pravastatin sodium USP is designated chemically as 1-Naphthalene-heptanoic acid, 1,2,6,7,8,8a­hexahydro-β,δ,6-trihydroxy-2-methyl-8-(2-methyl-1-oxobutoxy)-,monosodium salt,[1S­ [1α(βS*,δS*),2α,6α,8β(R*),8aα]]-. Structural formula: Pravastatin sodium USP is an white to yellowish white, hygroscopic powder. It is a relatively polar hydrophilic compound with a partition coefficient (octanol/water) of 0.59 at a pH of 7.0. It is freely soluble in water, in methanol, soluble in alcohol, very slightly soluble in acetonitrile, practically insoluble in ether, in ethyl acetate, and in chloroform. Pravastatin sodium tablets USP are available for oral administration as 10 mg, 20 mg, 40 mg or 80 mg tablets. Inactive ingredients include: croscarmellose sodium, crospovidone, magnesium stearate, meglumine, microcelac 100 (lactose monohydrate and microcrystalline cellulose), microcrystalline cellulose, opadry white YS-1-7040 (hypromellose 2910, polyethylene glycol 8000, talc, and titanium dioxide).

Terbinafine tablets contain the synthetic allylamine antifungal compound terbinafine hydrochloride. Chemically, terbinafine hydrochloride is (E)- N -(6,6-dimethyl-2-hepten-4-ynyl)- N -methyl-1-naphthalenemethanamine hydrochloride. The molecular formula C 21 H 26 CIN with a molecular weight of 327.90, and the following structural formula: Terbinafine hydrochloride is a white to off-white fine crystalline powder. It is freely soluble in methanol and methylene chloride, soluble in ethanol, and slightly soluble in water. Each tablet contains: Active Ingredients: terbinafine hydrochloride (equivalent to 250 mg of terbinafine) Inactive Ingredients: colloidal silicon dioxide, NF; croscarmellose sodium, NF; hypromellose, NF; magnesium stearate, NF; microcrystalline cellulose, NF.