SPL Set ID: c37a73fa-ceee-4555-a61b-e1e66ad6e97d

Venlafaxine Hydrochloride Extended-Release Capsules, USP are an extended-release capsule for once-a-day oral administration that contains venlafaxine hydrochloride, 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 is a white to off-white crystalline solid, with a solubility of 572 mg/mL in water (adjusted to ionic strength of 0.2 M with sodium chloride). Its octanol: water (0.2 M sodium chloride) 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 empty hard gelatin capsules, ethylcellulose, hypromellose, povidone, sugar spheres (composed of corn starch and sucrose) and talc. The 37.5 mg capsule shell contains red iron oxide, gelatin, and titanium dioxide. The 75 mg capsule shell contains black iron oxide, red iron oxide, gelatin, and titanium dioxide. The 150 mg capsule shell contains FD&C blue 1, FD&C red 3, FD&C yellow 6, gelatin, and titanium dioxide. The imprinting ink contains black iron oxide, potassium hydroxide and shellac. FDA approved dissolution test specifications differ from USP. image-01