Which Herbs Interact With Cannabis?

Similarly to synthetic drugs, some herbs have real physiological effects that may interfere with cannabis. The following is a list of supplements that may cause a reaction when used with cannabis:


Cannabis and ginseng may both help to lower blood sugar. If you are using the two together, it is recommended that you keep your blood sugar levels monitored. Herb Reactions and Cannabis

Ginkgo biloba

Ginkgo biloba improves blood flow, but may also cause bleeding. We tried to verify Mayo Clinic’s statement which issued that there have been “multiple cases” of bleeding caused by cannabis and ginkgo biloba usage, however, we could not find any corroborating resources.

Garlic and saw palmetto

Mayo Clinic also advises patients to watch for signs of bleeding when taking garlic and saw palmetto supplements. This is especially important for patients who use saw palmetto to treat enlarged prostate.

Basil and celery seeds

Basil and celery seeds can lower blood pressure and should be used with caution when taken with cannabis. Talk to your doctor if you experience any side effects such as: dizziness, fatigue, blurred vision, or nausea.


Chamomile is a proven natural sleep aid, and may lead to increased drowsiness when taken with cannabis.

Have you found any other studies about how herbs interact with cannabis? Comment below.

Sienna Bates
Sienna lives in New York, New York and recently studied at Brown University in Providence, RI. She is one of the premier editors helping ensure top-shelf quality guidelines are met with integrity and our philosophy. She now works as an after school enrichment center teacher to help students complete assignments and helps cover current cannabis news event updates.


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