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Hemp-derived delta-8 skirts marijuana laws and raises health concerns

Eric Berger, Kaiser Health News on

Published in News & Features

Suzan Kennedy has smoked marijuana, and says her Wisconsin roots mean she can handle booze, so she was not concerned earlier this year when a bartender in St. Paul, Minnesota, described a cocktail with the cannabinoid delta-8 THC as “a little bit potent.”

Hours after enjoying the tasty drink and the silliness that reminded Kennedy of a high from weed, she said, she started to feel “really shaky and faint” before collapsing in her friend’s arms. Kennedy regained consciousness and recovered, but her distaste for delta-8 remains, even though the substance is legal at the federal level, unlike marijuana.

“I’m not one to really tell people what to do,” said Kennedy, 35, who lives in Milwaukee and works in software sales. But if a friend tried to order a delta-8 drink, “I would tell them, ‘Absolutely not. You’re not putting that in your body.’”

The FDA and some marijuana industry experts share Kennedy’s concerns. At least a dozen states have banned the hemp-derived drug, including Colorado, Montana, New York and Oregon, which have legalized marijuana. But delta-8 manufacturers call the concerns unfounded and say they’re driven by marijuana businesses trying to protect their market share.

So what is the difference? The flower of the marijuana plant, oil derived from it and edibles made from those contain delta-9 tetrahydrocannabinol, the substance that produces the drug’s high, and can be legally sold only at dispensaries in states that have legalized marijuana. Similar products that contain delta-8 THC are sold online and at bars and retailers across much of the U.S., including some places where pot remains illegal. That’s because a 2018 federal law legalized hemp, a variety of the cannabis plant. Hemp isn’t allowed to contain more than 0.3% of the psychotropic delta-9 THC found in marijuana.

The concerns about delta-8 are largely focused on how it’s made. Delta-8 is typically produced by dissolving CBD — a compound found in cannabis plants — in solvents, such as toluene, which is often found in paint thinner. Some people in the marijuana industry say that process leaves potentially harmful residue. A study published in the journal Chemical Research in Toxicology last year found lead, mercury and silicon in delta-8 electronic cigarettes.

 

The FDA has issued warnings about the “serious health risks” of delta-8, citing concerns about the conversion process, and has received more than 100 reports of people hallucinating, vomiting and losing consciousness, among other issues, after consuming it. From January 2021 through this February, national poison control centers received more than 2,300 delta-8 cases, 70% of which required the users to be evaluated at health care facilities, according to the FDA.

Delta-8 is “just the obvious solution to people who want to have access to cannabis but live in a state where it’s illegal,” said Dr. Peter Grinspoon, a primary care physician at Massachusetts General Hospital and a longtime medical cannabis provider. “You can either get in a lot of trouble buying cannabis, or you can get delta-8.”

Grinspoon described delta-8 as about half as potent as marijuana. But because of the lack of research into delta-8’s possible benefits and the absence of regulation, he would not recommend his patients use it. If it were regulated like Massachusetts’ medical and recreational marijuana programs, he said, harmful contaminants could be flagged or removed.

Christopher Hudalla, chief scientific officer at ProVerde Laboratories, a Massachusetts marijuana and hemp testing company, said he has examined thousands of delta-8 products and all contained contaminants that could be harmful to consumers’ health.

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©2022 Kaiser Health News. Visit khn.org. Distributed by Tribune Content Agency, LLC.

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