Contemporary Routes of Cannabis Consumption: A Primer for Clinicians.

Although cannabis use is federally prohibited, medical cannabis is legal in some form in 30 states and the District of Columbia, and recreational use is legal in 8 states and the District of Columbia. The increasing legal acceptance of cannabis has led to a burgeoning industry that is producing an expanding variety of cannabis products. Physicians and other health care professionals should be aware of modern forms of cannabis consumption, as well as variations in tetrahydrocannabinol concentrations, to improve assessment of cannabis use and approach to treatment. This review aims to familiarize clinicians with modern forms of cannabis consumption and enable comparisons between disparate cannabis products.