文拉法辛 (商品名: 怡诺斯 或 博乐欣)是一种5-羟色胺和去甲肾上腺素再摄取抑制剂（SNRIs）类的抗抑郁药。该药首先由惠氏于1993年研发，现在由辉瑞负责市场销售。该药被批准用于治疗重性抑郁障碍（MDD）、广泛性焦虑症（GAD）以及伴随焦虑的抑郁症。文拉法辛在2007年是美国零售市场上最常用的抗抑郁药第6名。

Venlafaxine — brand names: Effexor, Effexor XR, Lanvexin, Viepax and Trevilor — is an antidepressant of the serotonin-norepinephrine reuptake inhibitor (SNRI) class. This means it increases the concentrations of the neurotransmitters serotonin and norepinephrine in the body and the brain. First introduced by Wyeth in 1993, now marketed by Pfizer, it is licensed for the treatment of major depressive disorder (MDD), generalised anxiety disorder (GAD), panic disorder and social phobia.