My effexor (225 mg.) has pooped out and I weigh too much. My Dr. added wellbutrin SR (300 mg) and after one month I feel better, and he wants me to discontinue th effexor if it keeps working. Do I have to wean the effexor or can I stop right away due to taking the wellbutrin? I heard the effects of going off effexor are bad. Thankyou for any info.