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Classification: Stimulant/Psychedelic/...
Duration: X hours
Low dose: X mg
Medium (typical) dose: X mg
High dose: X mg
Duration: X hours
Onset: X minutes
Low dose: X mg
Medium (typical) dose: X mg
High dose: X mg
Duration: X hours
Onset: X minutes
Low dose: X mg
Medium (typical) dose: X mg
High dose: X mg
Duration: X hours
Onset: X minutes
Low dose: X mg
Medium (typical) dose: X mg
High dose: X mg
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http://science.howstuffworks.com/meth3.htm