Can Marijuana Help Irritable Bowel Syndrome (IBS)?

IBS Marijuana
Irritable Bowel Syndrome (IBS) is a condition that causes discomfort such as stomach cramps, bloating, gas, constipation, and diarrhea. Medical marijuana is being considered as a potential treatment for IBS, as it may regulate the speed and severity of colon contractions, decrease stress, and reduce pain. The endocannabinoid system, which is involved in regulating a wide range of functions including pain suppression, appetite, and immune responses, plays a significant role in this potential treatment. Furthermore, there is a suggested link between IBS and cannabinoid deficiencies, and research indicates that balancing the endocannabinoid system may help mitigate some of the most painful and debilitating effects of IBS.
Table of Contents

Stomach cramps, bloating, gas, constipation, diarrhea… People suffering from irritable bowel syndrome or IBS experience all these discomforts. To ease the suffering, some afflicted with this condition are turning to medical marijuana for symptom relief and pain management. But does science and experience back up the belief that marijuana can help irritable bowel syndrome?

Let’s take a closer look.


If there is any good news for persons suffering from IBS, it is that they are not afflicted with IBD, which stands for inflammatory bowel disease. (As a side note, there is evidence that suggests that marijuana may be an effective treatment for IBD.)

To a person in the throes of severe abdominal cramps, pain, constipation or diarrhea — symptoms common to both conditions — this distinction may not bring much comfort. But from a medical perspective, IBS is not considered to be as severe a disorder as IBD, and is often labeled as a “functional disorder.”

IBD is a term that applies to two degenerative conditions — Crohn’s disease and ulcerative colitis —  which cause chronic inflammation of the gastrointestinal tract and can create long-term physical damage. By contrast, IBS can cause significant discomfort, and may interfere with the normal digestive process, but typically does not result in physically-damaging inflammation or lasting harm to the intestines.

The Search For Relief

The exact causes of IBS are not fully known, and often vary from person to person. In some cases, it’s simply a matter of having an overly sensitive small intestine or colon. Certain foods and medications may trigger a bout of IBS, and the condition has been linked to elevated levels of stress. As of yet, there is no single pill or potion that cures of all the problems and pains of IBS. Instead, treatment is aimed at addressing the various causes and symptoms individually, which has led many sufferers to seek out a range of alternative treatments, including marijuana.

Lifestyle changes such as limiting caffeine consumption and increasing fiber intake will sometimes relieve the symptoms of IBS, but there is no one dietary change that works for all sufferers. Various medications may also provide relief for one or more symptoms. There are both over-the-counter and prescription laxatives to help with constipation, and a number of anti-diarrheal agents for the opposite problem. Pain relievers may mitigate the discomfort of cramping, probiotics may lessen gas and bloating, and antidepressants are sometimes recommended, not to alter mood, but to reduce the intensity of pain signals going from gut to brain.

Each of these remedies addresses a specific symptom or group of symptoms, but none alone provide total symptom relief.

The Endocannabinoid Connection

Endocannabinoid research was a key factor in marijuana’s transition from a traditional medicinal remedy to an increasingly accepted component of modern medicine. First identified in the 1990’s, the endocannabinoid system extends throughout the human body, including  brain, organs, connective tissues, glands, and immune cells. Within these various tissues, cannabinoids stimulate cannabinoid receptors, which are involved in regulating a wide range of functions involving pain suppression, memory, mood, appetite and immune responses. The endocannabinoid system has also been shown to play a role in controlling visceral pain, which is pain that emanates from internal bodily organs.

The realization that there were significant numbers of cannabinoid receptors within the digestive system led some researchers to investigate the potential use of cannabis and its derivatives for conditions like Crohn’s disease, ulcerative colitis, and peptic ulcer disease. One of the pioneers in this research was scientist, Ethan Russo.

In 2003, Russo first suggested that there might be a link between IBS and cannabinoid deficiencies. In the years since, he and others have gathered supporting research that points to the role such deficiencies might play in conditions such as migraines, fibromyalgia, and IBS.

A 2011 study involving persons with IBS showed that dronabinol, which is a synthetic form of the marijuana cannabinoid THC, “decreased fasting proximal left colonic MI [motility index], decreased fasting distal left colonic MI and increased colonic compliance.”  In other words, it helped with diarrhea by regulating the speed and severity of colon contractions.

Gastric motility is a medical term for the natural contractions which move food through the digestive system. When this process gets out of whack, it can result in conditions such as IBS. Colon contractions are too fast in people with diarrhea-predominant IBS and too slow in people with constipation-predominant IBS. Because the endocannabinoid system has been shown to play a role in regulating the speed of these contractions, bringing this system into balance may help mitigate or alleviate some of the most painful and debilitating effects of IBS.

Marijuana for Symptom Relief

In addition to regulating colonic contractions, cannabis and its derivatives may provide relief from a number symptoms associated with IBS. Marijuana’s role in pain management is well documented, and its use may help sufferers deal with the cramping, bloating, pain, and pressure associated with IBS.

A lesser-known benefit that medical marijuana may play in balancing the body’s endocannabinoid system is its role in improving the permeability of intestinal cells, which improves the body’s ability to absorb important nutrients.

IBS And Stress

There are well-documented links between IBS and stress, and reducing stress may be one of the keys to controlling IBS. This is why marijuana’s stress-relieving properties may be one of its most important benefits for IBS sufferers.

One of the more interesting lines of research in this area looks at the link between IBS and PTSD. One study found there was a 36% correlation between the two disorders, and another noted improvements in IBS symptoms after treatment for PTSD.

As CannaMD has reported, medical marijuana may help with PTSD. Given the link between PTSD and IBS, this provides one more clue to the potential benefits of medical marijuana for the treatment of this painful and sometimes debilitating gastrointestinal disorder.

Updated: April 29, 2024

Pierce Hoover

Pierce Hoover is a career journalist with more than three decades of experience in print, broadcast and online writing, editing and reporting, with more than 5,000 articles published in national and international print media and online. His focus on medical marijuana therapies mirrors his broader interest in science-based alternative medical practices.


Questions about medical marijuana? Ready to get your card and purchase legal cannabis products? CannaMD‘s state-certified network of medical marijuana doctors are here to help! Contact CannaMD‘s experienced team at (855) 420-9170 today. You can also find out if you qualify for medical marijuana treatment with our quick online application!

Find Out If You Qualify

You may be eligible for medical marijuana!

To stay up-to-date with the latest studies and legal regulations surrounding medical marijuana treatment, be sure to follow CannaMD on Facebook and sign up for our newsletter, below!

Join 100k+ Subscribers!

Get updates on more posts like this!

Related PostS

Feedback from our readers is very important and helps us provide quality articles. Please don’t be shy, leave a comment.

If you have a topic you would like us to cover in our blog or you are interested in writing guest posts please contact us for more information.

Get a medical marijuana certification