SPL Set ID: 7790d906-af26-4e60-bc6f-e906ec03cc24
1 drug(s) with this SPL Set ID
The active ingredient in gabapentin capsules, and tablets is gabapentin, which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin is a white to off-white crystalline solid with a pK a1 of 3.7 and a pK a2 of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is – 1.25. Each gabapentin capsule, USP contains 100 mg, 300 mg, or 400 mg of gabapentin, USP and the following inactive ingredients: calcium carbonate, calcium sulfate dihydrate, glyceryl behenate, and pregelatinized maize starch. The capsule shell contains gelatin, titanium dioxide, sodium lauryl sulfate, yellow iron oxide (300 mg and 400 mg) and red iron oxide (400 mg). The imprinting ink contains shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide, potassium hydroxide, and purified water. Each gabapentin tablet, USP contains 600 mg or 800 mg of gabapentin, USP and the following inactive ingredients: glyceryl behenate, hydroxypropyl cellulose, low substituted hydroxypropyl cellulose, magnesium stearate, mannitol, talc, pregelatinized maize starch and Opadry YS-1-7003 (hypromellose, titanium dioxide, polyethylene glycol, and polysorbate 80). spl-gabapentin-structure