What is venlafaxine?

Venlafaxine is an antidepressant in a group of drugs called selective serotonin and norepinephrine reuptake inhibitors (SSNRIs). Venlafaxine affects chemicals in the brain that may be unbalanced in people with depression.

Venlafaxine is used to treat major depressive disorder, anxiety, and panic disorder.

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  • Venlafaxine
  • Commonly reported side effects of venlafaxine include insomnia, dizziness, weakness, drowsiness, constipation, anorgasmia, nausea, nervousness, headache, delayed ejaculation, xerostomia, decreased appetite, anorexia, and diaphoresis. Other side effects include hypertension, impotence, anxiety, abdominal pain, tremor, blurred vision, visual disturbance, vomiting, vasodilatation, weight loss, diarrhea, increased serum cholesterol, dyspepsia, pharyngitis, decreased libido, yawning, increased dream activity, abnormal dreams, and flatulence. See below for a comprehensive list of adverse effects.
  • General dosage information for: Venlafaxine (oral tablet, oral capsule, extended release, oral tablet, extended release) Please confirm that the medication forms on the dosage document(s) above are relevant for the specific drug you are interested in.