bro i have done it and me and my friend were trippin, but we were so high we thought a demon was after us lol, i kno it sound fucked up but its true, but if i were u i would just do them seperate if u take 4 or 5 27 mg concertas it like a mini cocaine high, hope this helps
bigbud1994 Reviewed by bigbud1994 on . Concerta & Marijuana? Anyone ever mix Marijuana and Concerta (Methylphenidate)? Good or bad experience? I thought I might try it since Concerta makes me really away and happy, and sometimes weed really tired me out. But I wanted to hear some other experiences, if possible. Oh, and don't just tell me to check Erowid. Instead, post links to the actual experiences. I searched myself, but could only find this one. Thanks for any help. :thumbsup: Rating: 5