Drug Interactions, Side Effects, and Pharmacological Safety

Why is it critical to understand medication interactions, withdrawal symptoms, and the systemic side effects of common pharmacological treatments?

Prescription Drugs

man in bed eyes opened suffering insomnia and sleep disorder

Effexor Side Effects: Insomnia

Published Aug,14 2017 | By Nancy Fowler Larson

Effexor, whose generic name is venlafaxine, can be an effective antidepressant but it may also have the annoying side effect of insomnia, or difficulty falling asleep or staying asleep.

Nancy Larson has been a freelance health, fitness and lifestyle writer since 1989. Her work has appeared on television newscasts and in publications including Time Inc.'s Health Magazine, About.com and CNN.com. She has a Bachelor of Arts in journalism from the University of Alabama-Birmingham. Her awards and honors include a local television Emmy Award for Best Newscast Writer at WXYZ-TV.