Is 75mg of Effexor XR to high of a dosage? I started out 3 days on 35mg of Effexor and then went right up to 75mg. I dont know if I should be using that high of a dosage. Every since I started taking it, I have been feeling REALLY exhausted. Is that from the Effexor? Also, does Effexor make you sweat? I know someone who takes it to prevent sweating, but I sweat so badly now that I take it. What is up with that? Any input would be greatly appreciated.