my brother is in the hospital!!!

My brother is in the hospital and I been hearing rumors that he overdosed on meth ! I don't have time to explain every single detail but I think I know what hospital he is at but he asked for no visitors !! He is ONLY 18 and my parents are worried sick about him!!! I know many of the comments are gunna be we can't do anything about it but if any one can give a piece of advice without being negative please tell me!!!!