Methamphetamine is powerful, highly addictive intoxication that affects the central nervous system. Crystal methamphetamine is a form of drug that looks similar to glass fragments or shiny, bluish-white rocks. It is chemically identical to amphetamine, a drug used to treat attention-deficit hyperactivity disorder (ADHD), and narcolepsy, a sleep disorder. Methamphetamine was discovered in 1893 and occurs as two enantiomers: levo-methamphetamine and dextro-methamphetamine. Methamphetamine properly refers to a specific chemical substance, the racemic free base, which is an equal mix to levomethamphetamine and dextromethamphetamine in their pure amine forms. It is infrequently approved over anxieties linking human neurotoxicity and potential for frivolous use as an aphrodisiac and euphoriant, among other worries, as well as the availability of safer substitute drugs with skin treatment effectiveness such as Adderall and Vyvanse.