Is the Street Drug “meth”, “Crystal Meth”, and “methadone” All the Same Thing?

Question by student2006: Is the street drug “meth”, “crystal meth”, and “methadone” all the same thing?

Best answer:

Answer by Cautiously Optimistic
Methadone is not the same as the other two. The first two were the same thing.

Add your own answer in the comments!