Can someone who is used to taking two and a half oxycodones(Endocets) or (25 mg), die from taking one 10mg Methadone pill? I took one earlier and am feeling pretty high, although my intentions for taking it were for back pain, and maybe a slight euphoric feeling as well. But Ive been reading a lot of stuff about methadone online since I took it and most of what I've read talks about how methadone can be fatal. Please help.
BTW, I'm 21, 6'1", and weigh 175 pounds(male). Thanks in advance.