Cannabis Health rounds up the latest research into the impact of cannabis on fibromyalgia.
There are thought to be around 1.5-2 million people in the UK currently living with fibromyalgia, a condition which causes chronic pain around the body, muscle stiffness and fatigue.
With no cure for the illness and symptoms severely affecting day-to-day life, research is focusing on therapeutic treatments – including medical cannabis.
In 2019, research published by Sagy, Schleider, Abu-Shackra and Novak showed that cannabis can help reduce fibromyalgia pain. The study of 367 patients found that pain intensity decreased when treated with medical marijuana, leading the team to state that “cannabis therapy should be considered to ease the symptom burden among those fibromyalgia patients who are not responding to standard care”.
Chaves, Bittencourt and Pelegrini further supported these findings in October 2020, concluding that phytocannabinoids can serve as an affordable yet well-tolerated therapy for fibromyalgia symptom relief and quality of life improvements.
After the randomised controlled trial, the researchers went as far as to suggest that the cannabinoid therapy “could become an herbal or holistic choice of medicine for treating fibromyalgia as part of Brazil’s public healthcare system”.
A study in Italy, published in February 2020, also demonstrated that medical cannabis improves the efficacy of standard analgesic fibromyalgia treatments.
Researchers concluded: “This observational study shows that medical cannabis treatment offers a possible clinical advantage in fibromyalgia patients, especially in those with sleep dysfunctions.”
Published in the Clinical and Experimental Rheumatology journal, the study followed 102 fibromyalgia patients who had not responded well to conventional treatments. These participants were given two forms of medical cannabis oil extracts and researchers then collected data over a six-month period from patients, who self-reported fibromyalgia symptoms, how well they slept, and feelings of fatigue, as well as depression and anxiety levels.
While only a third of fibromyalgia patients reported reduced symptoms of the disease overall, cannabis did improve overall quality of life for some. Fewer symptoms of depression and anxiety were found in around half of patients, too.
Despite fibromyalgia being more common amongst women – up to 90 per cent of sufferers are female – one study has found that cannabis may provide better pain relief for men.
The preclinical studies, conducted in 2016, compared the analgesic, subjective and physiological effects of active cannabis and inactive cannabis in male and female cannabis smokers under double-blind, placebo-controlled conditions, and measured pain response through the Cold-Pressor Test.
Among men, active cannabis significantly decreased pain sensitivity relative to inactive cannabis. However, in women, active cannabis failed to decrease pain sensitivity relative to inactive, indicating that in cannabis smokers, men exhibit greater analgesia compared to women.
Researchers concluded: “Sex-dependent differences in cannabis’ analgesic effects are an important consideration that warrants further investigation when considering the potential therapeutic effects of cannabinoids for pain relief.”
While further research is necessary, it is clear to see that medical cannabis can make a huge difference to treatment and relief of pain caused by fibromyalgia.
What is fibromyalgia – and can cannabis help?
With around one in 20 people in the UK and an estimated three to six per cent of the world’s population diagnosed, fibromyalgia is one of the most common pain conditions in the world.
Anyone can develop fibromyalgia – it affects around seven times as many women as men but can develop in either gender at any age – though its wide-ranging symptoms can make it a difficult condition to diagnose.
Alongside chronic pain, those affected may suffer with extreme tiredness, muscle stiffness, headaches, irritable bowel syndrome and problems with mental processes such as memory and concentration – all of which can be attributed to a number of other ailments.
While the exact cause of the condition is unknown, it’s thought to be related to abnormal levels of certain chemicals in the brain and changes in the way the central nervous system processes pain messages carried around the body. In many cases, it can be triggered by a physically or emotionally stressful event such as injury, giving birth or the death of a loved one.
Unfortunately, there is no known cure for fibromyalgia and no remedy to get rid of pain entirely. Instead, patients search for methods to alleviate symptoms, with many opting for a combination of treatments.
One which is growing significantly in terms of both research and usage is cannabis.
The remedy has long been associated with pain relief and as evidence of its benefits mounts, many fibromyalgia patients are choosing to give products such as gels and capsules a try.
In 2019, a study of 367 patients found that pain intensity decreased when treated with CBD. This was supported by Chaves, Bittencourt and Pelegrini in 2020, with the team finding that phytocannabinoids can serve as an ‘affordable yet well-tolerated therapy’ for symptom relief and quality of life improvements.
As usage rises, professionals are coming round to the idea of CBD as a prescribed treatment in fibromyalgia, and in 2018 Carly Barton of Brighton became the UK’s first fibromyalgia patient to receive a prescription for medical cannabis. Prior to that, she, along with thousands of others, had been paying up to £2,500 for three months’ treatment.
Despite many sufferers being reluctant to exercise for fear of aggravating symptoms, it’s another effective way to alleviate pain. Aerobic, resistance and stretching exercises have all been known to relieve pain and stiffness, increase strength and improve mobility in patients, while relaxation exercises such as yoga and t’ai chi can help with difficulty sleeping.
Research has repeatedly backed up these claims and shown that regular aerobic exercise can improve pain, function and overall quality of life, with a 2017 study stating that “aerobic and muscle strengthening exercises are the most effective way of reducing pain and improving global wellbeing in people with fibromyalgia and that stretching and aerobic exercises increase health-related quality of life”.
While regular painkillers may provide some benefits to fibromyalgia symptoms, one of the most commonly prescribed medications for the condition is antidepressants. The medication is known to boost the levels of certain chemicals (neurotransmitters) that carry messages to and from the brain, and with low levels of neurotransmitters thought to be a factor in fibromyalgia, it’s believed that this boost may ease the widespread pain associated with the condition.
Many professionals also believe that talking therapies, such as cognitive behavioural therapy (CBT) and counselling, are an effective way to manage symptoms and improve low mood associated with fibromyalgia.
Cannabis “significantly reduced” fibromyalgia pain – study
Cannabis was found to improve symptoms in patients with fibromyalgia, when used alongside prescription medication.
Medical cannabis has been linked to a reduction in pain and other symptoms in patients with fibromyalgia, according to new data published in the Journal of Cannabis Research.
An Italian researcher explored the long-term use of various types of cannabis preparations in 38 patients with treatment-resistant fibromyalgia.
Participants in the study consumed cannabis for up to twelve months in combination with their prescribed medications.
The author reported that “significant improvements were observed” following the initiation of cannabis therapy in most patients.
Medical cannabis therapy was found to “significantly reduce pain intensity”, with approximately half of the patients reporting a reduction in pain.
Most patients reporting response to therapy said their pain intensity had decreased by at least 50 percent.
Participants also reported a decline in their disability index and overall symptom severity.
The most common side effect experienced by participants was mental confusion, however no patients experienced serious adverse effects, with most who were responsive to medical cannabis reporting “no or mild side effects.”
Subjects also did not appear to develop long-term tolerance to the substance, as they had no need to increase their dosages of medical cannabis over the duration of the study.
The author concluded: “The current study revealed the positive effects of MC [medical cannabis] therapy in some patients with FMS [ fibromyalgia syndrome] and resistance to conventional treatment.
“Thus, cannabinoids may be considered for FMS treatment, although several side effects may still occur.
“Further studies are warranted to confirm these findings.”
The data supports a previous Italian study published last year, which demonstrated that medical cannabis improves the efficacy of standard analgesic fibromyalgia treatments.
Published in the Clinical and Experimental Rheumatology journal, the study followed 102 patients who had not responded well to conventional treatments and collected data over a six-month period from patients, who self-reported fibromyalgia symptoms, how well they slept, and feelings of fatigue, as well as depression and anxiety levels.
While only a third of fibromyalgia patients reported reduced symptoms of the disease overall, cannabis did improve overall quality of life for some.
The study of 367 patients found that pain intensity decreased when treated with medical cannabis, leading the team to state that “cannabis therapy should be considered to ease the symptom burden among those fibromyalgia patients who are not responding to standard care”.
New study to explore effects of CBD on fibromyalgia
An upcoming study will explore how CBD can improve quality of life in fibromyalgia patients.
Researchers at The Parker Institute in Denmark will investigate if CBD can improve pain, sleep, function and quality of life in patients living with fibromyalgia.
The CANNFIB trial will include 200 patients, who will receive either cannabidiol or placebo over a period of 24 weeks and will be closely monitored for improvements in their condition and for potential side-effects.
Fibromyalgia is a serious chronic pain condition, often accompanied by sleep disturbances, fatigue and reduced quality of life.
There is no cure and current medical treatments, including opioids, often come with a number of debilitating side-effects of their own.
Medical cannabis is commonly used among patients, and while there is a wealth of anecdotal evidence, there are still gaps in scientific research for its efficacy and safety.
A US survey published last month found an estimated one-third of patients with fibromyalgia were using CBD for symptom management.
Investigators at the University of Michigan Medical School surveyed over 2,700 patients, with 32 percent saying they were current consumers of CBD, generally reporting turning to the cannabinoid because they had experienced inadequate relief from conventional medications.
An Italian study, published in February 2020, followed 102 patients who had not responded well to conventional treatments.
These participants were given two forms of cannabis oil extracts and researchers collected data over a six-month period from patients, who self-reported fibromyalgia symptoms, how well they slept, and feelings of fatigue, as well as depression and anxiety levels.
Participants of the CANNFIB trial will be given a 10mg daily dose of CBD to start, this will be increased every third day until the maximum dosage of 50mg is reached.
They will remain on a 50mg daily dosage of CBD for 24 weeks.
The study will measure pain intensity, sleep quality and duration, activities of daily living and health-related quality of life, among other outcomes.
“Fibromyalgia is a serious chronic pain condition which is often accompanied by sleep disturbances, fatigue and disability and reduced quality of life,” wrote the study’s authors.
“There is no cure and treatments are based on relieving symptoms and maintaining function. The currently available medical treatments are not helping many patients, and many get side-effects.”
They added: “Medical cannabis is sought after among patients and many use this medication unlicensed, although it is not properly documented if it works or is safe. Therefore, it is necessary to investigate the effects and safety of medical cannabis in a properly designed randomised trial.
“Participants will be closely looked after for improvements in their condition and for potential side-effects to ensure safety.”
Read more about the CANNFIB trial here
- Do we really need CBD hand sanitiser?
- “I’ve been given so many labels, but CBD made me feel normal again”
- Five tips for coping with life after lockdown
- Almost half of THC-dominant cannabis flowers mislabelled
- Safe, certified and high-power CBD vaping formula’s hit the shelves
- Provacan brings high-strength, 72% CBD to UK
News8 months ago
NHS lines up cannabis medicine manufacturing
News3 months ago
Community extends support to cannabis icon Rick Simpson
Case Studies12 months ago
CBD oil and fibromyalgia – a case study
Feature8 months ago
Medical cannabis could help long-term effects of COVID-19, says David Nutt
Insight5 months ago
I’ve gone from a wheelchair to walking thanks to cannabis
News5 months ago
“I’m not a bad person” – chronically ill woman convicted of growing medical cannabis
News5 months ago
Cancer survivor claims cannabis oil helped her beat brain tumour
Industry1 week ago
Cannabliss to open brick and mortar dispensary