U.S. doctors online nowAsk doctors free
Canada
A 55-year-old member asked:

When switching from effexor (venlafaxine) to cellexa ,will the effexor (venlafaxine) in your system have any benefit until the cellexa starts to work?

1 doctor answer1 doctor weighed in
Dr. John Moranville
Psychiatry 37 years experience
Yes: How long depends on if it is XR or regular effector. The Regular Has Half Life Of About 16 Hrs Which Means It Will Stay In Your System For About 5 Days And Probably Still Have Some Effect For Even Longer. XR will last 2-3 weeks. Not sure why you are switching but in case your doc didn't explain effexor (venlafaxine) is SNRI (increases norepinephrine and serotonin) Celexa is SSRI (serotonin only)

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership
Last updated Apr 23, 2016

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.