Methamphetamine (??ntr??t?d from N-methylamphetamine) is a strong central n?rv?u? ???t?m (C.N.S.) stimulant th?t ?? predominantly u??d ?? a r??r??t??n?l drug ?nd l??? ??mm?nl? ?? a second-line tr??tm?nt f?r notice d?f???t hyperactivity disorder and ?b???t?.Based on the Countrywide Institute on Drug Abuse, using tobacco or injecting the stimulant bo