"my experience with effexor was abnormal but still scary. my psychiatrist prescribed me 37.5 mg of effexor xr. after a few days of taking it, i had a decrease in appetite, nausea, upset stomach, and some dizziness but i was told that was normal. however, after a week, i felt as though i had no more emotions. my memory became terrible and i felt emotionally dead inside l. some moments i couldn&#039;t get out of bed and others, i couldn&#039;t sit still. after two weeks, she increased my dose to 75 mg. within two hours of taking that dose, i was rushed to the er because of intense stomach upset, diahrrea and dangerously low blood pressure whenever i stood or sat up. after the er, i quit cold turkey and had withdrawal symptoms for only a week."