I started taking Effexor (Venlafaxine) 75 mg. a day for a couple of months. I am now taking 150 mg. I also take Percocet for pain. When I mentioned to my psychiatrist at the va that I have trouble sleeping, he said alot of people on opiates have problems sleeping. But, I looked up the possible side effects for Percocet and insomia wasn't listed. I then looked it up for Effexor on Web MD and Mayo Clinic and both listed trouble sleeping as a possible side effect. Does anyone else have this problem? Thanks for any feedback.
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