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Methylamphetamine 
Summary
Methylamphetamine may refer to:
- Phentermine, α-methylamphetamine
- 2-Phenyl-3-aminobutane, β-methylamphetamine
- Methamphetamine, N-methylamphetamine
- Methamphetamine hydrochloride, "crystal meth"
- Ortetamine, 2-methylamphetamine
- 3-Methylamphetamine
- 4-Methylamphetamine