Usefulness of Saliva for Measurement of 3,4-Methylenedioxymethamphetamine and Its Metabolites: Correlation with Plasma Drug Concentrations and Effect of Salivary pH
Clinical Chemistry October 1, 2001 Mèonica Navarro, Simona Pichini, Magí Farré et al. 135 citations
After a single 100-mg dose of MDMA, concentrations in saliva ranged from 1728.9 to 6510.6 μg/L, peaking at 1.5 hours, then declining to a mean of 126.2 μg/L at 24 hours. The saliva-to-plasma ratio varied from 32.3 to 1.2, with a peak of 18.1 at 1.5 hours. Salivary pH decreased by 0.6 units after drug administration, from a predose mean of 7.4 to 6.9 at 1.5 hours and 6.8 at 4 hours. Measuring MDMA in saliva offers a noninvasive alternative to plasma testing for clinical and toxicologic studies.