It still may not be a bad Idea to at least taper down to about 75 Mgs of Effexor before ramping up the
Paxil and Welbuterin. Then after the
Paxil and Welbuterine start to work then back down to 37.5 on the Effexor, then off it completly.
Given that you are going to put Paxil and Welbutrine in place of the Effexor, your withdrawl from the Effexor should be much more tolerable then say, someone just stopping Effexor and not replacing it with another AD medication.