Venlafaxine side effects

The most common side effects of venlafaxine are nausea, headache, sexual dysfunction, dizziness, insomnia, sedation, and constipation. At high doses, there may be an increase in blood pressure and heart rate. Desvenlafaxine is not considered to have a significantly different clinical or adverse effect profile compared to venlafaxine.There have been reports of cardiotoxicity with overdose of venlafaxine. Venlafaxine causes a dose-dependent increase in blood pressure and has CNS stimulant effects similar to those of the SSRIs. Severe withdrawal symptoms can occur, even after missing a single dose of venlafaxine.