SPL Set ID: 5c943206-6df8-4fc5-ab1d-d34b9715182c

Venlafaxine hydrochloride extended-release capsules, USP for once-a-day oral administration contains venlafaxine hydrochloride USP, a serotonin and norepinephrine reuptake inhibitor (SNRI). Venlafaxine is designated (R/S)-1-[2-(dimethylamino)-1-(4-methoxyphenyl) ethyl] cyclohexanol hydrochloride or (±)-1-[α- [(dimethylamino)methyl]-p-methoxybenzyl] cyclohexanol hydrochloride and has the empirical formula of C 17 H 27 NO 2 HCl. Its molecular weight is 313.86. The structural formula is shown as follows: Venlafaxine hydrochloride, USP is a white or almost white powder, it is freely soluble in methanol and water, soluble in anhydrous ethanol and slightly soluble or practically insoluble in acetone. Its octanol: water partition coefficient is 0.43. Drug release is controlled by diffusion through the coating membrane on the spheroids and is not pH-dependent. Capsules contain venlafaxine hydrochloride equivalent to 37.5 mg, 75 mg, or 150 mg venlafaxine. Inactive ingredients consist of sugar spheres (composed of sucrose, corn starch and purified water), talc, povidone (k-30), povidone (k-90), ethyl cellulose and hypromellose. The empty hard gelatin capsule shells contain titanium dioxide, gelatin, iron oxide red and iron oxide yellow. In addition, the 37.5 mg empty hard gelatin capsule shells contain iron oxide black. The capsules are printed with edible ink containing shellac, iron oxide red, propylene glycol and simethicone. FDA approved dissolution test specifications differ from USP. venlafaxine-structure