I READ A RESEARCH PAPER ON THE NET. ABOUT DEXTROMETHORPHAN HBr (DXM - COUGH SUPPRESSANT)AND AT MODERATE DOSAGES (IT WAS 50MG/ORAL )IT LOWERED THE TOLERANCE OF OPIODS IN HUMANS. I WOULD HAVE TO LOOK AROUND TO FIND THE SITE AGAIN, BUT I BELIEVE THAT IT TURNS OUT,THAT DXM IS USED BY ALOT OF PEOPLE TO LOWER THEIR TOLERANCE OR INCREASE THE EFFECTS OF OPIODS? (I THINK THE RESEARCHER USED HYDRO. IN HIS RESEARCH.) IF ANYONE HAS ANY INFO. ON THIS, PLEASE POST OR PM ME ? THANKS, CHEESE