Venlafaxine, sold under the brand name Effexor among others, is an antidepressant medication of the serotonin–norepinephrine reuptake inhibitor (SNRI) class. [5][9] It is used to treat major depressive disorder, generalized anxiety disorder, panic disorder, and social anxiety disorder. [9] Venlafaxine is used to treat depression. It is also used to treat general anxiety disorder, social anxiety disorder, and panic disorder. Venlafaxine belongs to a group of medicines known as serotonin and norepinephrine reuptake inhibitors (SNRI). Exposure to Effexor XR in mid to late pregnancy may increase the risk for preeclampsia, and exposure to Effexor XR in the month before delivery may be associated with an increased risk of. Effexor XR (venlafaxine) is used to treat major depressive disorder, anxiety, and panic disorder. Includes Effexor XR side effects, interactions and indications. Venlafaxine is used in adults to treat major depressive disorder. Effexor XR (venlafaxine) is a prescription capsule that’s used to treat depression, anxiety, and panic disorder. Learn about side effects, dosage, and more. Effexor XR is an extended-release capsule for once-a-day oral administration that contains venlafaxine hydrochloride, a serotonin and norepinephrine reuptake inhibitor (SNRI). Find patient medical information for Venlafaxine (Effexor) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Increased risk of suicidal thoughts and actions: EFFEXOR XR may increase suicidal thoughts and actions in some children, adolescents, and young adults, especially within the first few months of treatment or when the dose is changed. EFFEXOR XR is not for use in children. Effexor XR (venlafaxine hydrochloride) extended-release capsules are indicated for the treatment of major depressive disorder (MDD). Efficacy was established in three short-term (4, 8, and 12.