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U.S. medical cannabis enrollments quadrupled from 2016 to 2020

· Jun 21, 2022
These programs enable participants to buy marijuana for medical use. Although marijuana is still illegal under the federal Controlled Substances Act, the National Conference of State Legislatures reports that 37 states, D.C. and four U.S. territories had legalized marijuana for medical use as

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A growing number of people in the United States are enrolling in medical marijuana programs, with the total surpassing 2.97 million through 2020, more than quadrupling the number of people enrolled in 2016, according to a study published in Annals of Internal Medicine.

These programs enable participants to buy marijuana for medical use. Although marijuana is still illegal under the federal Controlled Substances Act, the National Conference of State Legislatures reports that 37 states, D.C. and four U.S. territories had legalized marijuana for medical use as of February.

State laws vary on which health conditions qualify someone for participation, but the study’s researchers found that the most common condition cited by current participants is chronic pain (noted by about 61 percent of enrollees), followed by post-traumatic stress disorder (11 percent).

Other conditions that may qualify people for participation, depending on their state’s law, include multiple sclerosis, Alzheimer’s, AIDS, glaucoma, Crohn’s disease and chemotherapy-induced nausea and vomiting.

To enroll in a medical marijuana program, people must get a doctor’s referral and sign up on their state’s registry. Then, for a fee, they are given a card that allows them to buy medical marijuana from an approved dispensary. It may be available in a variety of forms: pill, powder, liquid, oil and dried leaves.

Medical marijuana is sometimes called medical cannabis, referring to the plant, Cannabis sativa, from which it is derived. Potential medical benefits stem from marijuana’s active compounds: THC (delta-9 tetrahydrocannabinol) and CBD (cannabidiol).

A few marijuana-based medications have been approved by the Food and Drug Administration to treat health issues of people with cancer, AIDS or childhood epilepsy, and several other drugs are undergoing clinical trials to determine their safety and effectiveness.

The study’s researchers noted, however, that roughly one-third of program participants use medical marijuana “for conditions or symptoms without a substantial evidence basis.”

This article is part of The Post’s “Big Number” series, which takes a brief look at the statistical aspect of health issues. Additional information and relevant research are available through the hyperlinks.