what medicine should i need to take to reverse the side effects of the drugs benzhexol for example being sick nausea migranes fever cold chills headaches ive stopped taking the drugs now but in 2005 i took the medicine benzhexol and i noticed after one day i started to feel severly sick and fever and headaches even after i came off the tablets. can u please tell me if there is a cure what medicine do i need to take to reverse the nausea migranes fever cold sweats being sick?