This information is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The United States Government assumes no Liability for the contents or use thereof.

Tetrahydrocannabinol

Description Marihuana is a psychomimetic. 
Therapeutic Low 0.0010
Therapeutic High 0.0250
Units ug/mL 
Specimen
Half Life Low 2.00
Half Life High 56.00
VOD Low 4.00
VOD High 14.00
Toxic Level 0.050
Lethal Level 0.000
Plasma to Whole Blood ratio 1.80
Warnings Warnings - may impair mental and/or physical ability required for the performance of potentially hazardous tasks (e.g., driving, operating heavy machinery)