Does CBD help with arthritis pain?
If you have chronic arthritis pain, you may be wondering about cannabidiol (CBD) as a treatment. CBD, along with delta-9-tetrahydrocannabinol (THC) and other chemicals, is found in marijuana. But unlike THC, CBD is not “psychoactive” — that is, it does not cause the intoxication or high associated with marijuana use.
There’s a good chance you’ve tried it already: according to a Gallup poll in August of 2019, about 14% of Americans report using CBD products, and the number one reason is pain. The Arthritis Foundation conducted its own poll and found that 29% reported current use of CBD (mostly in liquid or topical form), and nearly 80% of respondents were either using it, had used it in the past, or were considering it. Of those using it, most reported improvement in physical function, sleep, and well-being; of note, a minority reported improvement in pain or stiffness.
Perhaps you’ve been tempted to try it. After all, most types of arthritis are not cured by other treatments, and CBD is considered a less addictive option than opiates. Or maybe it’s the marketing that recommends CBD products for everything from arthritis to anxiety to seizures. The ads are pretty hard to miss. (Now here’s a coincidence: as I was writing this, my email preview pane displayed a message that seemed to jump off the screen: CBD Has Helped Millions!! Try It Free Today!)
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.
But now, there is.
A word about arthritis pain
It’s worth emphasizing that there are more than 100 types of arthritis, and while pain is a cardinal feature of all of them, these conditions do not all act alike. And what works for one may not work for another. Treatment is aimed at reducing pain and stiffness and maintaining function for all types of arthritis. But for certain conditions, such as rheumatoid arthritis, conventional prescription medications are highly recommended, because these drugs help prevent permanent joint damage and worsening disability.
In addition, individuals experience pain and respond to treatment in different ways. As a result, it’s highly unlikely that there is a single CBD-containing product that works for all people with all types of arthritis.
What’s the evidence that CBD is effective for chronic arthritis pain?
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.
Of course, there is anecdotal evidence and testimonials galore, including reports of dramatic improvement by people who tried CBD in its various forms (including capsule, liquid, topical, and spray) for their pain. But we are still waiting for well-designed, scientifically valid, and rigorous clinical trials (such as this one in progress) that are so badly needed to answer the question of just how helpful CBD may be to people with chronic arthritis pain.
Are there downsides to CBD treatment?
As with any treatment, there can be downsides. CBD is generally considered safe; however, it can still cause lightheadedness, sleepiness, dry mouth, and rarely, liver problems. There may be uncertainty about the potency or purity of CBD products (since they are not regulated as prescription medications are), and CBD can interact with other medications. For pregnant women, concern has been raised about a possible link between inhaled cannabis and lower-birthweight babies; it’s not clear if this applies to CBD. Some pain specialists have concerns that CBD may upset the body’s natural system of pain regulation, leading to tolerance (so that higher doses are needed for the same effect), though the potential for addiction is generally considered to be low.
There is one definite downside: cost. Prices range widely but CBD products aren’t inexpensive, and depending on dose, frequency, and formulation, the cost can be considerable — I found one brand that was $120/month, and health insurance does not usually cover it.
Are there guidelines about the use of CBD for chronic arthritis pain?
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):
- If considering a CBD product, choose one that has been independently tested for purity, potency, and safety — for example, look for one that has received a “Good Manufacturing Practices” (GMP) certification.
- CBD should be one part of an overall pain management plan that includes nonmedication options (such as exercise) and psychological support.
- Choose an oral treatment (rather than inhaled products) and start with a low dose taken in the evening.
- Establish initial goals of treatment within a realistic period of time — for example, a reduction in knee pain that allows you to walk around the block within two weeks of starting treatment; later, if improved, the goals can be adjusted.
- Tell your doctor(s) about your planned and current CBD treatment; monitor your pain and adjust medications with your medical providers, rather than with nonmedical practitioners (such as those selling CBD products).
- Don’t make CBD your first choice for pain relief; it is more appropriate to consider it if other treatments have not been effective enough.
- Don’t have nonmedical practitioners (such as those selling CBD products) managing your chronic pain; pain management should be between you and your healthcare team, even if it includes CBD.
- For people with rheumatoid arthritis or related conditions, do not stop prescribed medications that may be protecting your joints from future damage; discuss any changes to your medication regimen with your doctor.
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.
We may not have all the evidence we’d like, but if CBD can safely improve your symptoms, it may be worth considering.
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Complementary treatments and arthritis – from turmeric to cannabis oil
People use complementary medicine for many different reasons, including:
- wanting to use more natural treatments
- their symptoms aren’t fully controlled by conventional medicine.
Read more about complementary therapies which can help to ease the symptoms of arthritis, from yoga to meditation.
Are they right for me?
As with all complementary treatments, different things work for different people and it isn’t possible to predict which might be the most useful or effective.
There are some key points to consider if you’re thinking about using any complementary treatments.
- What are you hoping to achieve? Pain relief? More energy? Better sleep? Reduction in medication?
- What are the financial costs?
- Is there any evidence for their effectiveness?
Are complementary medicines safe?
Complementary medicines are relatively safe, although you should always talk to your doctor before you start any new treatment.
In specific cases they may not be recommended, for example, if you are pregnant or breastfeeding, or they may interact with certain medication.
A starter for five
Here we share a spotlight on the most popular complementary medicines that people call our helpline about.
It’s thought that turmeric can possibly reduce inflammation, which could help people with arthritis.
People with knee osteoarthritis who took part in a research trial reported improvements to their pain levels after taking turmeric. The evidence is limited however, as it is from just one trial. What evidence there is suggested that people only had minor side-effects after taking turmeric.
Turmeric can be bought from health food shops, pharmacies and supermarkets in the form of powder.
Glucosamine sulphate and glucosamine hydrochloride are nutritional supplements. Animal studies have found that glucosamine can both delay the breakdown of and repair damaged cartilage.
The results for the use of glucosamine for osteoarthritis are mixed and the size of the effect is modest. There’s some evidence that more recent trials and those using higher-quality methods are less likely to show a benefit.
Capsaicin is taken from chilli peppers. It works mainly by reducing Substance P, a pain transmitter in your nerves. Results from randomised controlled trials assessing its role in treating osteoarthritis suggest that it can be effective in reducing pain and tenderness in affected joints, and it has no major safety problems. Evidence for its effectiveness for fibromyalgia is related to a single trial.
Other names: Axsain®, Zacin®, chilli, pepper gel, cayenne
Capsaicin is licensed in the UK for osteoarthritis and you can get it on prescription in the form of gels, creams and plasters.
There are no major safety concerns in applying capsaicin gel/cream. A review of capsaicin applied to the skin to treat chronic pain (not specifically related to osteoarthritis, rheumatoid arthritis or fibromyalgia) concluded that around one third of people experience a reaction around the area where the treatment is applied. It’s important to keep capsaicin away from your eyes, mouth and open wounds because it will cause irritation. There have been no reported drug interactions.
Fish oils are rich in omega-3 essential fatty acids, which have strong anti-inflammatory properties. Fish liver oil is also a rich source of vitamin A (a strong antioxidant) and vitamin D (which is important for maintaining healthy joints).
Evidence suggests that fish body oil can improve the symptoms of rheumatoid arthritis. Unconfirmed evidence also suggests a combination of fish body and liver oils might also be useful in the long term, particularly in reducing the use of non-steroidal anti-inflammatory drugs (NSAIDs). There isn’t enough evidence for the use of fish liver oil for osteoarthritis.
Omega-3 fatty acids also play a role in lowering cholesterol and triglyceride levels in your blood, so they can reduce the risk of heart disease and stroke in people with inflammatory arthritis.
In the UK, dietary guidelines recommend eating two portions of fish a week, including one oily. Fish oil is considered to be well tolerated at this dose.
At the correct doses, side-effects are usually minor and uncommon.
Cannabis oil (CBD)
CBD is type of cannabinoid – a natural substance extracted from the cannabis plant and often mixed with an oil (such as coconut or hemp) to create CBD oil. It does not contain the psychoactive compound called tetrahydrocannabidiol (THC) which is associated with the feeling of being ‘high’.
Research in cannabinoids over the years suggests that they can be effective in treating certain types of chronic pain such as pain from nerve injury, but there is currently not enough evidence to support using cannabinoids in reducing musculoskeletal pain. We welcome further research to better understand its impact and are intently following developments internationally.
CBD oil can be legally bought as a food supplement in the UK from heath food shops and some pharmacies. However, CBD products are not licensed as a medicine for use in arthritis by MHRA (Medicines and Healthcare products Regulatory Authority) or approved by NICE (National Institute for Health and Care Excellence) or the SMC (Scottish Medicines consortium).
We know anecdotally from some people with arthritis, that CBD has reduced their symptoms. If you’re considering using CBD to manage the pain of your arthritis, it’s important to remember it cannot replace your current medicines, and it may interact with them, so please do not stop/start taking anything without speaking to a healthcare professional.
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