SPL Set ID: 8b38c5df-8278-485c-8625-75f9b408fb1c

Pregabalin is described chemically as (S)-(+)-3-(Aminomethyl)-5-methylhexanoic acid. The molecular formula is C 8 H 17 NO 2 and the molecular weight is 159.23 g/mol. The chemical structure of pregabalin is: Pregabalin, USP is a white to off-white, crystalline solid with a pK a1 of 4.2 and a pK a2 of 10.6. It is freely soluble in water and both basic and acidic aqueous solutions. The log of thepartition coefficient: (n-octanol/0.05M phosphate buffer) at pH 7.4 is -1.35. Pregabalin Capsules are administered orally and are supplied as imprinted hard-shell capsules containing 25 mg, 50 mg, 75 mg, 100 mg, 150 mg, 200 mg, 225 mg, and 300 mg of pregabalin, along with pregelatinized starch and talc as inactive ingredients. The capsule shells contain gelatin and titanium dioxide. In addition, the orange capsule (75 mg, 100 mg, 200 mg, 225 mg and 300 mg) shells contain iron oxide red. The imprinting ink contains iron oxide black, potassium hydroxide, propylene glycol, strong ammonia solution and shellac. Pregabalin Structure