I’m ion 37.5 I was on 300. XR. If I miss a dose it affects my head nothing is quite right I feel dizzy like makes me sick to my stomach I usually vomit and sleep I want off of this crap I don’t like how it makes my head feel when I don’t take it today will be day 2 of none in my system How long before it’s out of my body and mind???
Effexor - How long before it gets out of your system?
Question posted by Queen Gigi on 14 Jan 2018
Last updated on 10 March 2018
Hi, Gigi! You could try taking it as directed because the side effects resolve within a few days to a week or so. By stopping the medication or missing/skipping doses you're risking discontinuation syndrome with the symptoms you describe.
The only safe and effective way to wean off antidepressants is by using a decreasing dose schedule supplied by the doctor who prescribed it for you.
The half life of Effexor XR is about 15 - 20 hours so it will take about 3 - 4 days to completely leave your system, although you may continue to feel discontinuation symptoms for several more days.
- Effexor information for Healthcare Professionals (includes dosage details)
- Side effects of Effexor (detailed)
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