My physician prescribed me Fioricet last year to relieve my monthly headaches. I have taken it only a few times and decided to look up the side effects online today. I noticed it warns against taking stimulants (e.g., ADHD medications) while taking Fioricet. I take Adderall almost daily for ADD. The same doctor prescribed both, but never mentioned any interactions between the two medications. I do not take any other medication, but I do drink some caffeine everyday (usually black tea). What are the side effects and possible risks of taking these two medications together?