I don't know of any specific reason they shouldn't be used together (concerta and dxm) but you should ask a doctor before trying such a combo. Of course most doctors would warn against exceeding the recommended dose of dxm with or without other drugs in your system. You might try abstaining from concerta for a week before using dxm, but again, you should ask a doctor first, because I dont know what the half life (how long it takes for half of the drug to be eliminated from the body) of concerta aka Methylphenidate is and because concerta is a timed-release capsule of methylphenidate, meaning that whatever its half life; it still takes longer to absorb than the non timed-release kind.
Edgar Reviewed by Edgar on . DXM + MDMA = your ass DXM and MDMA taken together can cause serotonin syndrome which is potentially Fatal! ie it could kill your ass. DXM also inhibits perspiration which can raise the body temperature and an increase in body temperature is also one of the many symptoms of serotonin syndrome, so obviously you run the risk of overheating. I give this warning because I notice that some of you are carelessly popping pills without knowing their interactions. Stay safe, Edgar Rating: 5