Amphetamine and methamphetamine exist in two optical isomeric forms (enantiomers) designated as d- (dextro) or l- (levo). In another nomenclature, the two enantiomers are designated as S(+)- and R(-)-, respectively. The d-isomer has much stronger central nervous system (CNS) stimulant effect and has high abuse potential; the l-isomer exerts its vasoconstrictive effect peripherally. For example, l-methamphetamine has much lower potency as a CNS stimulant than d—methamphetamine and is available as a nonprescription nasal inhalant (Vicks Inhaler®).

Clinical false-positive amphetamines result can come from one of the following causes.

Defeat Drugs Death

Defeat Drugs Death

This Book Is One Of The Most Valuable Resources In The World When It Comes To Helpful Info On Avoiding And Beating A Fatal Drug Addiction!

Get My Free Ebook

Post a comment