title: Abuse of smoking methamphetamine mixed with tobacco: I. Inhalation efficiency and pyrolysis products of methamphetamine.
abstract: Experiments of smoking methamphetamine in tobacco have been investigated. Inhalation efficiencies of methamphetamine into tar were 6 to 17% according to the additive amounts, suction volume, and intervals of smoking. Major pyrolysis products of methamphetamine in tar were identified as methamphetamine, amphetamine, phenylacetone, dimethylamphetamine, N-formyl-, N-acetyl-, N-propionyl-, and N-cyanomethyl-methamphetamine by the spectral analysis of infrared spectra (IR), mass spectra (MS), and proton magnetic resonance spectra (PMR), and comparison with the samples synthesized from authentic samples by one step. The largest pyrolysis product was N-cyanomethylmethamphetamine which is a new compound and easily metabolized to methamphetamine in the body. Methamphetamine itself transferred into tar was not so large, but the total active compounds in tar which would be metabolized to methamphetamine in the body were considerably larger.
authors: Criminal Investigation Laboratory, Saitama Prefecture Police Headquarters, Japan.
authors: H
authors: H
authors: Sekine
authors: Y
authors: Y
authors: Nakahara
mesh_terms: D000280:Administration, Inhalation; D008401:Gas Chromatography-Mass Spectrometry; D006358:Hot Temperature; D006801:Humans; D008694:Methamphetamine; D010084:Oxidation-Reduction; D012907:Smoking; D019966:Substance-Related Disorders; D013638:Tars / Q000032:analysis
chemical_list: D013638:Tars; D008694:Methamphetamine