Just a question,if you smoke weed and then later on have to take A.D.D pills can it do anything with you? I know I have weed in my system and then I take my pills,I just wanted to know if that could do anything. Ive been feeling fine when I take my pills shortly after smoking and weeks after smoking and taking the pills I feel fine. I know your not supposed to mix pills with alcohol and I was wondering if that was the same for weed. So what I'm saying if you still have thc in your system is it safe to take pills such as mine. Thanks.