Gabapentin comes as:
- 100 mg, 300 mg, and 400 mg capsules
- 300 mg, 600 mg, and 800 mg tablets
- a 250 mg/5 mL oral (by mouth) solution.
Inactive ingredients in the capsules include lactose, cornstarch, and talc.
- The 100-mg capsule shell also contains: gelatin and titanium dioxide.
- The 300-mg capsule shell also contains: gelatin, titanium dioxide, and yellow iron oxide.
- The 400-mg capsule shell also contains: gelatin, red iron oxide, titanium dioxide, and yellow iron oxide. The imprinting ink contains FD&C Blue No. 2 and titanium dioxide.
Inactive ingredients in the tablets include poloxamer 407, copolyvidonum, cornstarch, magnesium stearate, hydroxypropyl cellulose, talc, candelilla wax, and purified water.
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Inactive ingredients in the oral solution include glycerin, xylitol, purified water, and artificial flavor.