Marijuana has long been promoted as an antiemetic, making it a viable option for those seeking relief from nausea. The cannabinoid THC is cannabis’ main active ingredient responsible for providing nausea relief by interacting with cannabinoid receptors in the brain that manage nausea and vomiting.. In one study, healthy volunteers received ipecac, a substance that stimulates vomiting, alongside THC. It was found that THC significantly reduced symptoms of queasiness and vomiting.
The antiemetic benefits provided by medical marijuana make it desirable for cancer and AIDS patients who seek relief from the nauseating side effects of their traditional treatment regimens. One study found patients undergoing chemotherapy experienced an absence of nausea and vomiting through the use of cannabinoids, and reported it as preferable to other treatments. Another study analyzed 30 studies of more than 1300 patients and found cannabinoid-based medications were more effective than other antiemetics in treating side effects of chemotherapy. Studies have also found cannabis’ nausea relief can help AIDS patients continue with their antiretroviral treatments, and THC can help stimulate appetite to combat weight loss.
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