lamotrigine - Medication Listings

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It's chemical name is 3,5-diamino-6-(2,3-dichlorophenyl)-as-triazine, its molecular formula is C9H7N5Cl2, and its molecular weight is 256.09. Lamotrigine is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: [Molecular Structure] Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake.

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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine Tablets, USP are supplied for oral administration as 25 mg (light pink), 100 mg (light pink), 150 mg (light pink), and 200 mg (light pink) tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate, povidone, sodium starch glycolate, black iron oxide, iron oxide red and yellow iron oxide. Meets USP Dissolution Test 3. 1

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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine Extended-Release Tablets, USP are supplied for oral administration as 25-mg (yellow), 50-mg (green), 100-mg (orange), 200-mg (blue), 250-mg (purple), and 300-mg (gray) tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: hypromellose, lactose monohydrate, magnesium stearate, methacrylic acid and ethyl arcylate copolymer dispersion, mono- and di-glycerides, polysorbate 80, silicon dioxide(25- and 50- mg tablets only), sodium hydroxide, sodium lauryl sulfate, titanium dioxide, triethyl citrate, iron oxide black(50- and 300- mg tablets only), iron oxide red(100- and 250- mg tablets only), iron oxide yellow(25-, 50-, 100- mg tablets only), FD&C Blue No. 2 Aluminum Lake(200- and 250- mg tablets only). Tablets are printed with edible black ink (black ink is composed of ferrosoferric oxide, propylene glycol and shellac). Lamotrigine Extended-Release Tablets, USP contain a modified-release formulation as the core. The tablets are coated with a clear enteric coat to enable a controlled release of drug in the acidic environment of the stomach. The combination of this and the modified-release core 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. FDA approved dissolution test specifications differ from USP. Chemical Structure

Lamotrigine, 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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets, USP are supplied for oral administration as 25-mg (white to off white), 100-mg (white to off white), 150-mg (white to off white), and 200-mg (white to off white) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: lactose monohydrate; magnesium stearate; microcrystalline cellulose; povidone; and sodium starch glycolate. Meets USP Dissolution Test 3 Structure

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It's chemical name is 3,5-diamino-6-(2,3-dichlorophenyl)-as-triazine, its molecular formula is C9H7N5Cl2, and its molecular weight is 256.09. Lamotrigine is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake. Description

Lamotrigine, 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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets, USP are supplied for oral administration as 25-mg (white to off white), 100-mg (white to off white), 150-mg (white to off white), and 200-mg (white to off white) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: lactose monohydrate; magnesium stearate; microcrystalline cellulose; povidone; and sodium starch glycolate. Meets USP Dissolution Test 3 Structure

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of amotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2. Structured formula for Lamotrigine

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 100 mg or 150 mg or 200 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Structured formula for Lamotrigine

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of amotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2.

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. Its 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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine orally disintegrating tablets are supplied for oral administration. The tablets contain 25 mg (white to off-white), 50 mg (white to off-white), 100 mg (white to off-white), or 200 mg (white to off-white) of lamotrigine and the following inactive ingredients: amino methacrylate copolymer, aspartame, black currant flavor, colloidal silicon dioxide, crospovidone, magnesium stearate, mannitol, microcrystalline cellulose, peppermint flavor, pregelatinized maize starch, sodium chloride, and stearic acid. Lamotrigine orally disintegrating tablets are formulated using granulation technology in which the lamotrigine drug substance is granulated with stearic acid and eudragit EPO for taste masking. The formulation contains flavor and has a good mouth feel, no grittiness, no after taste, better palatability and gives a desired dissolution profile. Chemical Structure

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake. Molecular Structure

Lamotrigine 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 is off-white to white crystalline powder. Lamotrigine is very slightly soluble in water, and slightly soluble in 0.1 M HCl. The structural formula is: Lamotrigine tablets are supplied for oral administration as 25 mg (white), 100 mg (white), 150 mg (white), and 200 mg (white) tablets. In addition, each tablet contains the following inactive ingredients: lactose monohydrate; magnesium stearate; microcrystalline cellulose; sodium starch glycolate. Chemical Structure

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of amotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2. Structured formula for Lamotrigine

Lamotrigine, 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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets, USP are supplied for oral administration as 25-mg (white to off white), 100-mg (white to off white), 150-mg (white to off white), and 200-mg (white to off white) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: lactose monohydrate; magnesium stearate; microcrystalline cellulose; povidone; and sodium starch glycolate. Meets USP Dissolution Test 3 Structure

Lamotrigine, 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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets, USP are supplied for oral administration as 25-mg (white to off white), 100-mg (white to off white), 150-mg (white to off white), and 200-mg (white to off white) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: lactose monohydrate; magnesium stearate; microcrystalline cellulose; povidone; and sodium starch glycolate. Meets USP Dissolution Test 3 Structure

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of amotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2. Structured formula for Lamotrigine

Lamotrigine, 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 pK a of 5.7. Lamotrigine USP, is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine extended-release tablets USP, are supplied for oral administration as 25 mg (yellow), 50 mg (green), 100 mg (beige), 200 mg (blue), 250 mg (purple) and 300 mg (gray) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, macrogol, magnesium stearate, methacrylic acid copolymer dispersion, polyvinyl alcohol, talc, titanium dioxide and triethyl citrate. The 25 mg tablets also contain D&C Yellow No. 10 and FD&C Yellow No. 6. The 50 mg tablets also contain FD&C Blue No. 2 and iron oxide yellow. The 100 mg tablets also contain iron oxide red and iron oxide yellow. The 200 mg tablets also contain FD&C Blue No. 2. The 250 mg tablets also contain FD&C Blue No. 2 and FD&C Red No. 40. The 300 mg tablets also contain black iron oxide. Lamotrigine extended-release tablets, USP contain a modified-release eroding formulation as the core. The core tablets are coated with an enteric coat and have pore forming ingredient in the coat to enable a controlled release of the drug in the acidic environment of the stomach. The combinations of the modified-release core and the enteric coat 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. USP Dissolution Test pending. Structural Formula

Lamotrigine, 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 256.1. Lamotrigine is a white or almost white powder and has a pKa of 5.7. Lamotrigine is slightly soluble in anhydrous ethanol and in 0.1M hydrochloric acid. The structural formula is: Lamotrigine extended-release tablets, USP are supplied for oral administration as 200 mg, blue, round, biconvex film-coated tablets; 250 mg, purple, caplet shaped, biconvex film-coated tablets; and 300 mg, grey, caplet shaped, biconvex film-coated tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, povidone K-30, hypromellose, colloidal silicon dioxide, magnesium stearate, methacrylic acid and ethyl acrylate copolymer, silicon dioxide, triethyl citrate, titanium dioxide, polyethylene glycol 400, ferrosoferric oxide (250 mg and 300 mg tablets only), FD&C Blue No. 2 Aluminum Lake (200 mg and 250 mg tablets only), carmine (250 mg tablet only). Tablets are imprinted with edible black ink containing shellac, propylene glycol and ferrosoferric oxide. 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 the 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. FDA approved dissolution testing specifications differ from USP. Structure

Lamotrigine 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 256.1. Lamotrigine USP is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine USP is slightly soluble in anhydrous ethanol, practically insoluble in dilute hydrochloric acid and in water. The structural formula is: Lamotrigine Orally Disintegrating Tablets, USP are supplied for oral administration. The tablets contain 25 mg (white to off-white), 50 mg (white to off-white), 100 mg (white to off white), or 200 mg (white to off-white) of lamotrigine and the following inactive ingredients: amino methacrylate copolymer, aspartame, colloidal silicon dioxide, crospovidone, kollidon SR, magnesium stearate, mannitol, sucralose and artificial cherry flavor containing dextrose, corn starch, and tricalcium phosphate. structure

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of amotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2.

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of amotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2.

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg (white to off-white), 100 mg (peach), 150 mg (cream), and 200 mg (blue) tablets. Each tablet contains the labeled amount of lamotrigine USP and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, povidone, sodium starch glycolate, magnesium stearate; FD&C yellow No 6 (100 mg tablet only); ferric oxide yellow (150 mg tablet only); and FD&C blue No 2 lake (200 mg tablet only). Meets USP dissolution test 3.

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake.

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2. Structural Formula

Lamotrigine, 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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine extended-release tablets, USP are supplied for oral administration as 25 mg, 50 mg, 100 mg, 200 mg, 250 mg, and 300 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: glyceryl monostearate, hypromellose, lactose monohydrate, magnesium stearate, methacrylic acid copolymer dispersion, polyethylene glycol, polysorbate 80, triethyl citrate, titanium dioxide and water. Apart from this: 25 mg tablet contains D&C yellow #10 aluminum lake, iron oxide red and iron oxide yellow. 50 mg tablet contains D&C yellow # 10 aluminum lake, FD&C blue # 2, ferric oxide yellow. 100 mg tablet contains D&C yellow # 10 aluminum lake, D&C red # 27, ferric oxide yellow. 200 mg tablet contains FD&C blue # 2 aluminum lake, ferrososferric oxide. 250 mg tablet contains carmine, FD&C blue # 2 aluminum lake, ferrososferric oxide. 300 mg tablet contains FD&C blue # 2 aluminum lake, ferric oxide yellow, ferrosoferric oxide. Lamotrigine extended-release tablets, USP contain a modified-release eroding formulation as the core. The tablets are coated with a modified enteric coating 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. Product meets USP dissolution test# 9. Lamotrigine extended-release tablets

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake. Molecular Structure

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 g/mol. Lamotrigine, USP is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M hydrochloride (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine orally disintegrating tablets, USP are supplied for oral administration. The tablets contain 25 mg (white to off-white), 50 mg (white to off-white), 100 mg (white to off-white), or 200 mg (white to off-white) of lamotrigine, USP and the following inactive ingredients: amino methacrylate copolymer, aspartame, black currant flavor, colloidal silicon dioxide, crospovidone, magnesium stearate, mannitol, microcrystalline cellulose, peppermint flavor, pregelatinized maize starch, sodium chloride, and stearic acid. Lamotrigine orally disintegrating tablets, USP are formulated using granulation technology in which the lamotrigine, USP drug substance is granulated with stearic acid and eudragit EPO for taste masking. The formulation contains flavor and has a good mouth feel, no grittiness, no after taste, better palatability and gives a desired dissolution profile. 3

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of amotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2. Structured formula for Lamotrigine

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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine Tablets USP are supplied for oral administration as 25 mg (white), 100 mg (light peach), 150 mg (cream), and 200 mg (light blue) tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: croscarmellose sodium, crospovidone, FD&C Blue #2 Aluminum Lake (200 mg strength only), FD&C Yellow No. 6 Lake (100 mg strength only), lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone, and yellow iron oxide (150 mg strength only). Meets USP Dissolution Test 3. Chemical Structure

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2. Structured formula for Lamotrigine

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake. Molecular Structure

Lamotrigine, 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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets, USP are supplied for oral administration as 25-mg (white to off white), 100-mg (white to off white), 150-mg (white to off white), and 200-mg (white to off white) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: lactose monohydrate; magnesium stearate; microcrystalline cellulose; povidone; and sodium starch glycolate. Meets USP Dissolution Test 3 Structure

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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine Tablets USP are supplied for oral administration as 25 mg (white), 100 mg (light peach), 150 mg (cream), and 200 mg (light blue) tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: croscarmellose sodium, crospovidone, FD&C Blue #2 Aluminum Lake (200 mg strength only), FD&C Yellow No. 6 Lake (100 mg strength only), lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone, and yellow iron oxide (150 mg strength only). Meets USP Dissolution Test 3.

Summary not available yet.

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake.

Lamotrigine, 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 256.1. Lamotrigine is a white or almost white powder and has a pKa of 5.7. Lamotrigine is slightly soluble in anhydrous ethanol and in 0.1M hydrochloric acid. The structural formula is: Lamotrigine extended-release tablets, USP are supplied for oral administration as 200 mg, blue, round, biconvex film-coated tablets; 250 mg, purple, caplet shaped, biconvex film-coated tablets; and 300 mg, grey, caplet shaped, biconvex film-coated tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, povidone K-30, hypromellose, colloidal silicon dioxide, magnesium stearate, methacrylic acid and ethyl acrylate copolymer, silicon dioxide, triethyl citrate, titanium dioxide, polyethylene glycol 400, ferrosoferric oxide (250 mg and 300 mg tablets only), FD&C Blue No. 2 Aluminum Lake (200 mg and 250 mg tablets only), carmine (250 mg tablet only). Tablets are imprinted with edible black ink containing shellac, propylene glycol and ferrosoferric oxide. 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 the 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. FDA approved dissolution testing specifications differ from USP. Structure

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, USP, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. Lamotrigine, USP chemical name is 3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine, its molecular formula is C 9 H 7 Cl 2 N 5 , and its molecular weight is 256.1 g/mol. Lamotrigine, USP is a white to pale cream-colored powder. Lamotrigine is very slightly soluble in water, slightly soluble in 0.1 M HCl, sparingly soluble in methanol and in ethanol 96%. The molecular structure is: Lamotrigine orally disintegrating tablets, USP are supplied for oral administration. The tablets contain 25 mg (white to off-white), 50 mg (white to off-white), 100 mg (white to off-white), or 200 mg (white to off-white) of lamotrigine, USP and the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, mannitol, microcrystalline cellulose, peppermint flavor, sodium stearyl fumarate and sucralose. Chemical Structure

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake. Molecular Structure

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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine extended-release tablets, USP are supplied for oral administration as 25 mg (white to off-white, round), 50 mg (gray, round), 100 mg (gray, round), 200 mg (white to off-white, round), 250 mg (yellow, capsule-shaped), and 300 mg (gray, capsule-shaped) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: hypromellose, lactose monohydrate; magnesium stearate; methacrylic acid copolymer, silicon dioxide, talc, titanium dioxide, and triethyl citrate. In addition, the 50 mg, 100 mg, and 300 mg tablets also contain FD&C Blue #2 Aluminum Lake, FD&C Red #40 Aluminum Lake, FD&C Yellow #6 Aluminum Lake (Sunset Yellow Lake) and triacetin. The 25 mg and 200 mg tablets also contain polyethylene glycol 400. The 250 mg tablets also contain black iron oxide, capric triglyceride, copovidone, polydextrose, polyethylene glycol 3350, red iron oxide, and yellow iron oxide. Lamotrigine extended-release tablets, USP contain a modified-release formulation as the core. The tablets are coated with an enteric coat, dry coat and color coat, to enable a controlled release of drug in the acidic environment of the stomach. The combination of this and the modified-release core are designed to control the dissolution rate of lamotrigine over a period of time. Meets USP Dissolution Test 7.

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake. Molecular Structure

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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine Extended-Release Tablets, USP are supplied for oral administration as 25-mg (yellow), 50-mg (green), 100-mg (orange), 200-mg (blue), 250-mg (purple), and 300-mg (gray) tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: hypromellose, lactose monohydrate, magnesium stearate, methacrylic acid and ethyl arcylate copolymer dispersion, mono- and di-glycerides, polysorbate 80, silicon dioxide(25- and 50- mg tablets only), sodium hydroxide, sodium lauryl sulfate, titanium dioxide, triethyl citrate, iron oxide black(50- and 300- mg tablets only), iron oxide red(100- and 250- mg tablets only), iron oxide yellow(25-, 50-, 100- mg tablets only), FD&C Blue No. 2 Aluminum Lake(200- and 250- mg tablets only). Tablets are printed with edible black ink (black ink is composed of ferrosoferric oxide, propylene glycol and shellac). Lamotrigine Extended-Release Tablets, USP contain a modified-release formulation as the core. The tablets are coated with a clear enteric coat to enable a controlled release of drug in the acidic environment of the stomach. The combination of this and the modified-release core 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. FDA approved dissolution test specifications differ from USP. Chemical Structure

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 is a white to pale cream-colored powder and has a pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine Tablets USP are supplied for oral administration as 25 mg (white), 100 mg (light peach), 150 mg (cream), and 200 mg (light blue) tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: croscarmellose sodium, crospovidone, FD&C Blue #2 Aluminum Lake (200 mg strength only), FD&C Yellow No. 6 Lake (100 mg strength only), lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone, and yellow iron oxide (150 mg strength only). Meets USP Dissolution Test 3. Chemical Structure

Lamotrigine extended-release tablets, USP (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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine extended-release tablets, USP are supplied for oral administration as 25-mg (light yellow to yellow), 50-mg (light green to green), 100-mg (light orange to orange), and 200-mg (light blue to blue) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: diethyl phthalate, ferric oxide black (50-mg tablet only), ferric oxide red (100-mg tablet only), ferric oxide yellow (25-mg, 50-mg and 100-mg tablets only), hypromellose, hypromellose phthalate, lactose monohydrate, lake of indigo carmine (200-mg tablet only), magnesium stearate, polyethylene glycol, talc, titanium dioxide. Lamotrigine extended-release tablets, USP contain a modified-release eroding formulation as the core. The tablets are coated with polymer to prevent release of drug in the acidic environment of the stomach. The combination of this and the modified-release core 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 3 1

Summary not available yet.

Lamotrigine, an AED of the phenyltriazine class, is chemically unrelated to existing AEDs. It'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 is a white to pale cream-colored powder and has a pKa of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets USP are supplied for oral administration as 25 mg, 100 mg, 150 mg or 200 mg tablets. Each tablet contains the labeled amount of lamotrigine and the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. In addition, the 200 mg tablets contain FD&C Blue No. 2 Lake. Molecular Structure

Lamotrigine, 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 pK a of 5.7. Lamotrigine, USP is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Lamotrigine tablets, USP are supplied for oral administration as 25-mg (white to off white), 100-mg (white to off white), 150-mg (white to off white), and 200-mg (white to off white) tablets. Each tablet contains the labeled amount of lamotrigine, USP and the following inactive ingredients: lactose monohydrate; magnesium stearate; microcrystalline cellulose; povidone; and sodium starch glycolate. Meets USP Dissolution Test 3 Structure

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 pK a of 5.7. Lamotrigine is very slightly soluble in water (0.17 mg/mL at 25°C) and slightly soluble in 0.1 M HCl (4.1 mg/mL at 25°C). The structural formula is: Each lamotrigine tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg or 150 mg or 200 mg or 250 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone and sodium starch glycolate. Each lamotrigine tablets for oral suspension, USP intended for oral administration contains 5 mg or 25 mg of lamotrigine. In addition, each tablet contains the following inactive ingredients: aspartame, croscarmellose sodium, flavour black currant, magnesium stearate, mannitol, microcrystalline cellulose, silicon dioxide and tribasic calcium phosphate. Lamotrigine tablets, USP comply with USP Dissolution Test 3. Lamotrigine Tablets for Oral Suspension, USP comply with Organic Impurities Procedure 2. Structural Formula

Lamotrigine, 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 pK a of 5.7. Lamotrigine, USP is slightly soluble in 0.1 N hydrochloric acid, in acetone, in methanol and in water. The structural formula is: Lamotrigine orally disintegrating tablets are supplied for oral administration. The tablets contain 25 mg (white), 50 mg (white), 100 mg (peach), 200 mg (white) of lamotrigine, USP and the following inactive ingredients: For lamotrigine orally disintegrating tablets 25 mg, 50 mg and 200 mg: Colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, mannitol, starch (maize), microcrystalline cellulose, pregelatinized starch, peppermint flavor, sodium stearyl fumarate and sucralose. For lamotrigine orally disintegrating tablets 100 mg: Colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, mannitol, starch (maize), microcrystalline cellulose, pregelatinized starch, peppermint flavor, sodium stearyl fumarate, sucralose and idacol red oxide of iron. Lamotrigine orally disintegrating tablets are formulated using in-house technologies designed to mask the bitter taste of lamotrigine and achieve a rapid dissolution profile. lamotrigine