^^^No, don't stop taking your effexor, the halflife and increase in seratonin receptors will simply mean that you will go into withdrawal, unless you taper from it over several weeks; either way its not too wise to stop a medication to take drugs. I don't think there would be any significant interaction between the two, except a decrease in effects, but there is the chance of seratonin syndrome. Hopefully someone more in the know will be able to answer