If you use marijuana regularly, it could make you more likely to get anxiety, depression, and other mental illnesses.
Doctors will need more proof before they can recommend cannabis products to treat rheumatic diseases. For example, we know very little about the effects on RA from smoking marijuana or other uses of herbal marijuana.
Is Cannabis Right for You?
The federal ban on marijuana and CBD means studies on humans have been few. So researchers don’t know for sure that cannabis eases RA symptoms. But the results from several very small studies suggest that in people with rheumatic diseases, including RA and osteoarthritis, it may help:
THC, or delta-9-tetrahydrocannabinol, is what gets you high when you smoke, vape, or eat marijuana. CBD doesn’t affect your brain that way. For that reason, some people prefer the oil form of CBD for medical uses.
Mayo Clinic: “Mayo Clinic Q and A: Treatment with medical cannabis,” “Marijuana,” “What are the benefits of CBD — and is it safe to use?” “Rheumatoid arthritis.”
Interactions can occur with these medications:
The strongest scientific evidence for effectiveness of CBD as a medical treatment is for seizure prevention in Dravet syndrome and Lennox-Gastaut syndrome, which are severe childhood epilepsy disorders that typically don’t respond to antiseizure medications. Several years ago, the FDA approved the first cannabis-derived medicine for these conditions, Epidiolex, which contains CBD.
If CBD alone doesn’t work and you are in a state where medical or recreational marijuana is legal, you could consider talking to your doctor about taking CBD with a very low-dose THC product. Be aware that even at low levels, THC may make you feel high, resulting in cognitive, motor, and balance impairment.
Medications that interact with grapefruit juice can potentially interact with CBD, including:
Studies have found moderate interactions between CBD and medications commonly prescribed for treating RA.
CBD can increase your level of coumadin, a blood thinner.
Research in this area is ongoing.
While there are laboratory studies suggesting CBD might be a promising approach, and animal studies showing anti-inflammatory and pain-relieving effects, well-designed studies demonstrating compelling evidence that CBD is safe and effective for chronic arthritis pain in humans do not exist. A randomized trial of topical CBD for osteoarthritis of the knee has been published, but in abstract form only (meaning it’s a preliminary report that summarizes the trial and has not been thoroughly vetted yet); the trial lasted only 12 weeks, and results were mixed at best. One of the largest reviews examined the health effects of cannabis and CBD, and concluded that there is “substantial evidence that cannabis is an effective treatment for chronic pain in adults.” But there was no specific conclusion regarding CBD, presumably because definitive studies were not available.
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The bottom line
If you’re interested in CBD treatment for chronic arthritis pain or if you’re already taking it, review the pros, cons, and latest news with your healthcare providers, and together you can decide on a reasonable treatment plan. Depending on the type of arthritis you have, it may be quite important to continue your conventional, prescribed medications even if you pursue additional relief with CBD products.
Until recently, little guidance has been available for people with arthritis pain who were interested in CBD treatment. Depending on availability and interest, patients and their doctors had to decide on their own whether CBD was a reasonable option in each specific case. To a large degree that’s still true, but some guidelines have been published. Here’s one set of guidelines for people pursuing treatment with CBD that I find quite reasonable (based on recommendations from the Arthritis Foundation and a recent commentary published in the medical journal Arthritis Care & Research):
What’s the evidence it works? And what do experts recommend? Until recently, there’s been little research and even less guidance for people (or their doctors) interested in CBD products that are now increasingly legal and widely promoted.