CBD is one of the many chemical compounds that is found in the cannabis plant—referred to as cannabis sativa. There are two primary parts of the plant that humans use. One is THC, or Delta-9-Tetrahydrocannabinol, and the other is CBD. Though they’re from the same plant, THC and CBD are quite different from each other.
Because CBD supplements come in so many different forms—such as oils, gummies, tinctures, and vapors—the amount that’s actually absorbed can vary drastically. This, combined with each person, will ultimately affect which (if any) CBD side effects you might experience.
Some people may get diarrhea or liver problems [when using CBD]. This is dependent on the individual and their medical history, so monitoring is important,” says Dr. Matharu-Daley.
Can Interact With Other Medications
CBD benefits include the following:
“CBD is not an intoxicating substance, whereas THC is a psychoactive that can get you high,” explains Dr. Jas Matharu-Daley, a physician and consultant for a brand that specializes in CBD production.
The most comment side effects of CBD include drowsiness, gastrointestinal issues, dry mouth, reduced appetite, nausea, and interaction with other medications. Those are outlined in detail below.
Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital.
Studies found evidence, although not high-quality, that cannabis-based medicines reduced long-term nerve (chronic neuropathic) pain. All but two studies used a plant-based THC/CBD mouth spray (the other two used synthetic oral THC).
There are two types of cannabis sativa: hemp and marijuana. The hemp plant is the source of CBD used in most products.
Early research suggests that 160 mg of cannabidiol before bed significantly improves sleep duration compared to a placebo in patients with insomnia. Smaller doses did not have this effect. Also, patients did not feel drowsy the next morning morning.
CBD, Foods and Herbs
CAUTION: CBD should not be used with medicines that are prescribed to control seizures.
Applications of transdermal cannabidiol were studied in people with temporomandibular (joint of the jaw) disorders (TMD) that caused myofascial (coverings of muscle) pain. Those studied had less muscle activity and pain after applying the topical CBD for 2 weeks.
There are, in fact, dozens of cannabinoids, as well as other substances in cannabis sativa.
Two ways to use CBD are by mouth (oral) and applied to the skin (topical).
Pickens JT. Sedative activity of cannabis in relation to its delta’-trans-tetrahydrocannabinol and cannabidiol content. Br J Pharmacol 1981;72(4):649-56. View abstract.
Parihar V, Rogers A, Blain AM, Zacharias SRK, Patterson LL, Siyam MA. Reduction in Tamoxifen Metabolites Endoxifen and N-desmethyltamoxifen With Chronic Administration of Low Dose Cannabidiol: A CYP3A4 and CYP2D6 Drug Interaction. J Pharm Pract. 2020:897190020972208. View abstract.
Uses & Effectiveness ?
Szaflarski JP, Bebin EM, Cutter G, DeWolfe J, et al. Cannabidiol improves frequency and severity of seizures and reduces adverse events in an open-label add-on prospective study. Epilepsy Behav. 2018 Oct;87:131-136. Epub 2018 Aug 9. View abstract.
Ohlsson, A., Lindgren, J. E., Andersson, S., Agurell, S., Gillespie, H., and Hollister, L. E. Single-dose kinetics of deuterium-labelled cannabidiol in man after smoking and intravenous administration. Biomed.Environ Mass Spectrom. 1986;13(2):77-83. View abstract.
Brady CM, DasGupta R, Dalton C, et al. An open-label study of cannabis-based extracts for bladder dysfuntion in advanced multiple sclerosis. Mult Scler 2004;10(4):425-33. View abstract.