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Efexor XR (Venlafaxine HCl Extended Release) capsules are available as follows: 37.5 mg, opaque light grey/opaque peach capsules with "W" and "37.5" printed in red.
75 mg, opaque peach capsules with "W" and "75" printed in red.
150 mg, opaque dark orange capsules with "W' and "150" printed in white.
There are three strengths of Efexor XR capsules, containing 37.5, 75, and 150 mg of venlafaxine in an extended-release formulation. Drug release is controlled by diffusion through the coating membrane on the spheroids and is not pH dependent. Venlafaxine is chemically defined as (R/S)-1-[(2-dimethylamino)-1-(4-methoxyphenyl)ethyl] cyclohexanol hydrochloride.
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