I have someone who is very close to me on oral methodone . they say they are only taking 45 mg a day but i am not 100% sure. They do have heart issues and are on two heart medicines. So they take methodone and two heart meds a day. They have been on the methodone for about 7/8 months . over this time period there has been several plus times where they cant walk straight, cant drive, eyes drowsy, nod out, bump into things, not coherent , get mad easy and basically cant even have a real conversation with them. Could the two medicines mixing cause this? Or are they taking someone on top of the methodone? I know one time they took zanex and acted the same way... I cant get this person to be honest and dont know what to do. I myself have never taken anything so have lack of experience. Thank you for any information.