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