SPL Set ID: b4c7388a-19d9-4e3a-83c9-4943fb855be4
1 drug(s) with this SPL Set ID
The active ingredient in gabapentin capsules, USP is gabapentin, USP which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin, USP is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin, USP is: Gabapentin, USP 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 contains 100 mg, 300 mg, or 400 mg of gabapentin, USP and the following inactive ingredients: black iron oxide, corn starch, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, gelatin, mannitol, red iron oxide, shellac, talc, titanium dioxide, yellow iron oxide and may contain propylene glycol and sodium lauryl sulfate. 1