Agreed, that is a good question and really can't talk to that point. But adderall does clear the system fairly quickly - which is why you have to retake it daily. That kind of makes me doubt the synergistic effect, but really don't know.
This site lists 485 drugs and 3569 generic meds that have interactions with Adderall. I didn't see finasteride listed, but I didn't check out the generic versions. The site is - http://www.drugs.com/drug-interactions/amphetamine-dextroamphetamine,adderall-index.html
Hope this helps.
I'm well aware of the effects of finasteride I was just wondering if adderall could have caused a synergistic effect increasing my chances of getting gyno.
thanks
Read up on side effects of finasteride. That is the problem, not the adderall.