Get Virtual Care
For Businesses
About Us
A member asked:
At what dosage does effexor (venlafaxine) xr become cardiotoxic? studies sayfor overdose 1000mg but what about 225mg-450mg that some folks take? is that high enough
A doctor has provided 1 answer
It's pretty safe.: They don't actually do controlled trials of overdoses in humans. Therefore the experience is based only on those who try suicide and they are not a reliable group. http://www.accessdata.fda.gov/drugsatfda_docs/label/2005/020699s059lbl.pdf 2.75 GRAM was slightly cardiotoxic, BUT 1) other drugs potentially interact 2) underlying heart disease will interact with it.
Answered 11/5/2014
3.6k views
Thank
Related Questions
A member asked:
Yest. I took an extra Effexor (venlafaxine) 150mg pill by accident on top of usual dose. Heart rt seemed elevated but back to normal now. Chance of long term harm?
A doctor has provided 1 answer
A member asked:
Hello! i'm trying to find the source of my high bp. I recently went down in my Effexor (venlafaxine) XR dose. But i'm also on levothyroxine 50 mcg and nuva ring. ?
3 doctors weighed in across 2 answers
A member asked:
I have high bp,tachycardia, daily take Effexor (venlafaxine) XR, soma, ultram, zonegran, methergine, metoprolol tar, elavil, neurontin.What OTC cold med can I take?
A doctor has provided 1 answer
A member asked:
At what dose does Effexor (venlafaxine) become an snri and is high blood pressure common with its use?
8 doctors weighed in across 2 answers
People also searched for:
Is a 225mg daily dose of Effexor (venlafaxine) dangerously high? Will it have effects on my cardiac system?
Just started Effexor (venlafaxine) XR 75mg what is the effective does to become more productive and how long will it take me to get to that dose?
I missed a dose of Effexor (venlafaxine) 75mg. When should I take the mext one?
What symptoms are present with an Effexor (venlafaxine) overdose. I just like to know worst case scenarios with anything I take. Better safe than sorry?
One 5 mg tablet of Valium every 2 to 3 days affects my anxiety more than the 112.5 mg of effexor-xr i take daily. Should i increase the Effexor (venlafaxine) dose?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
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.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
