Parameters for a Standard THC Unit in Canada

Presents the rationale for establishing a standard THC unit for Canada. A standard THC unit for Canada is defined as a set amount of the primary psychoactive constituent in cannabis (delta-9-tetrahydrocannabinol; Δ-9-THC), measured in milligrams and applied across all cannabis products and methods of administration. Identifies key parameters for setting a standard THC unit, including: the Canadian substance use landscape; alignment with the objectives of the Cannabis Act; the diversity of people in Canada who use cannabis, including the perspectives of those with lived and living experience; alignment with existing public education and lower-risk guidelines; and experimental and ecological data. Based on these parameters, a 2.5 mg standard THC unit is recommended for Canada. Useful for decision-makers, regulators, researchers, healthcare and public health professionals, and others interested in cannabis measurement.