The sale of cannabis generates millions of dollars for Ottawa and the provinces. Yet support for research into the health benefits and risks to Canadians remains woefully meagre
Ruth A. Ross is a professor in pharmacology and toxicology, the Tanenbaum Chair in Neuroscience at the University of Toronto, and director of the Toronto Consortium for Cannabis and Cannabinoid Research. She was also president of the International Cannabinoid Research Society for 2022-2023.
Stringent and bureaucratic regulations around research licenses and security – even though cannabis is readily available for purchase from a storefront – have substantially slowed down research efforts. As a result, there are huge gaps in our knowledge: despite self-medication by millions of people, we still do not know if cannabis is safe and effective for many conditions including pain and sleep.
Furthermore, for non-medical use, there has been a proliferation of very-high-potency THC products. Much of the narrative surrounding the health effects of cannabis is based on decades-old data where the concentration of THC was considerably lower than current doses, and the concentration of CBD lower still. That data is virtually obsolete in the current context.
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