Can Medical Marijuana for Mesothelioma Help?
Some people with mesothelioma use medical marijuana or cannabis products as complementary therapies to manage symptoms or treatment side effects. Broadly speaking, 25% of all cancer patients use some form of marijuana, according to the Dana-Farber Cancer Institute.
Medical marijuana can help ease cancer symptoms like:
- Anxiety
- Chemotherapy-related nausea and vomiting
- Loss of appetite
- Sleep disturbances
Medical marijuana does have risks and side effects. It’s not a cure for cancer and can also make some treatments less effective. However, when used as an alternative or complementary treatment under the guidance of a mesothelioma doctor, it may be helpful.
Get our Free Mesothelioma Guide shipped overnight to learn how to manage symptoms and feel better during treatment.
How Does Medical Marijuana for Mesothelioma Work?
Marijuana products contain naturally occurring compounds called cannabinoids that can affect things like pain, appetite, mood, and nausea. Some people with mesothelioma and other cancers use medical marijuana to help manage these symptoms.
The two best-known cannabinoids are:
- CBD (cannabidiol): This is a non-intoxicating cannabinoid that has been studied for its anti-inflammatory, anti-anxiety, and pain-relieving properties.
- THC (tetrahydrocannabinol): This psychoactive compound causes the “high” associated with cannabis. THC may also help reduce nausea, stimulate appetite, and relieve some types of pain.
“American Society of Clinical Oncology (ASCO) guidelines clearly say that cannabis is medicinal. So to have an organization of 50,000 oncologists say that cannabis is medicinal is not a small thing.”
– Dr. Ilana Braun, associate professor of psychiatry at Harvard Medical School
At this time, more research into how medical marijuana helps with cancers like mesothelioma is ongoing.
Potential Benefits of Medical Marijuana for Mesothelioma
While effectiveness varies from person to person, many cancer patients have reported feeling better after starting medical marijuana.
Medical marijuana can help ease mesothelioma symptoms such as:
- Anxiety
- Appetite loss
- Nausea and vomiting
- Trouble sleeping
Learn about how medical marijuana can potentially relieve specific symptoms of mesothelioma below.
Nausea and Vomiting
Chemotherapy for mesothelioma can cause nausea and vomiting, making it difficult to eat, stay hydrated, or even continue treatment.
An Annals of Oncology study found that 1 in 4 cancer patients found relief from chemotherapy-induced nausea and vomiting thanks to oral cannabis extracts, compared to just 14% of those who received standard painkillers.
THC-based medications such as dronabinol (Marinol®) and nabilone (Cesamet®) have been approved by the U.S. Food and Drug Administration (FDA) to help manage nausea and vomiting. You can get these with a doctor’s prescription even in states where marijuana isn’t legal.
“There isn’t a lot of research, but there’s enough high-quality research to suggest that cannabis can be helpful for patients who are experiencing chemotherapy-induced nausea and vomiting.”
– Dr. Ilana Braun, associate professor of psychiatry at Harvard Medical School
Anxiety and Sleep
Some patients report that CBD, THC, or other cannabinoids help reduce anxiety or improve sleep. However, research findings have been mixed, and these products may not be appropriate for everyone.
Mesothelioma patients should discuss anxiety, sleep problems, and supportive care options with their health care provider before using medical marijuana.
Pain Relief
Some studies suggest cannabinoids may help mesothelioma patients feel better when used alongside other pain management strategies.
While current research is conflicting as to whether cannabis helps with discomfort stemming from cancer, broader studies have shown that it does ease other types of pain.
Cannabis can help with pain associated with:
- Joint issues
- Neuropathy (numbness and tingling from nerve damage)
- Surgeries
For cancer specifically, cannabis products may help patients rely less on opioid-based medications for pain relief.
“There seems to be a ‘sweet spot,’ where if you use too much cannabis, it makes the pain worse.”
– Dr. Carol Parise, scientist at Sutter Center for Health Systems Research
Appetite
Many people with mesothelioma experience loss of appetite during treatments or when facing late-stage cancer.
THC may help stimulate appetite and taste in some patients, making it easier to maintain proper nutrition and manage unintended weight loss during treatment. This can support a patient’s overall health and potentially help them tolerate more aggressive treatments.
According to the American Cancer Society (ACS), medical marijuana may help with cancer-related anorexia (appetite loss) and cachexia (muscle loss and wasting).
Download our Free Mesothelioma Nutrition Guide for tips on getting necessary nutrients, maintaining your appetite, and feeling better with cancer.
Side Effects and Risks of Medical Marijuana for Mesothelioma
Like any medication or supplement, medical marijuana, CBD, or THC for mesothelioma can cause side effects. These effects vary depending on the product used, the dose, and the individual patient.
Side effects of using medical marijuana may include:
- Addiction or dependence
- Changes in mood or coordination
- Dizziness
- Drowsiness
- Dry mouth
- Impaired concentration or memory
- Increased heart rate
Older adults and people with certain heart, lung, or mental health conditions may have a higher risk of side effects.
Medical marijuana may also interact with chemotherapy, immunotherapy, or other prescription medications, making them less effective or causing complications.
Finally, smoking marijuana exposes the body to carcinogens similar to those found in cigarettes, according to the Centers for Disease Control and Prevention (CDC). Alternative products like gummies, pills, or oils may allow patients to get the benefits of marijuana without the harmful smoke.
Is Medical Marijuana for Mesothelioma Legal?
Right now, 41 states have legalized medical marijuana, as well as Washington, D.C., and several territories. Federal law reclassified state-regulated medical cannabis from Schedule I to Schedule III in April 2026.
Many states have medical cannabis programs that allow patients with qualifying medical conditions to obtain products through dispensaries. Eligibility requirements, approved medical conditions, and product availability vary by state.
Mesothelioma patients should review the laws in their state and speak with their health care provider before obtaining medical cannabis.
CBD products may also be available without a medical marijuana card in some areas. However, product quality, strength, and labeling can vary significantly, making it important to purchase products from reputable sources when permitted by law.
Can Medical Marijuana Treat Mesothelioma?
No. Medical marijuana has not been proven to cure mesothelioma or significantly improve life expectancy on its own.
Because of this, medical marijuana should be viewed as a complementary therapy rather than a replacement for conventional cancer treatment.
Mesothelioma treatment plans may include:
- Chemotherapy
- Immunotherapy
- Radiation therapy
- Surgery
- Clinical trials
Researchers continue to study cannabinoids to better understand how they affect cancer cells. For example, a 2022 MDPI report found that cannabinoids had anti-cancer effects when tested on mesothelioma cells in a lab. However, there was no survival benefit when tested in rats with mesothelioma.
Download our Free Doctor Questions Checklist to get answers from your specialist about how alternative treatments like medical cannabis could help you.
Types of Medical Marijuana for Mesothelioma
While commonly associated with smoking, there are different medical marijuana products that cancer patients can use to find relief.
Medical marijuana is available in several forms, including:
- Cannabis oil or CBD oil
- Capsules
- Edible products like gummies
- Oral sprays
- Patches
- Topical creams
- Smokeable or vape-based products
The FDA has also approved cannabinoid medications such as Marinol and Cesamet to help with chemotherapy-related nausea and vomiting when other treatments aren’t effective.
The ACS recommends first-time cannabis users start with low-dose, non-inhaled products, such as edibles, oils, or topical creams.
Talk to Your Mesothelioma Doctors Before Using Medical Marijuana
Before using medical marijuana, CBD oil, or other cannabinoid products, always talk with your oncologist or another member of your health care team.
Your provider can help determine whether medical marijuana may be appropriate based on your diagnosis, treatment plan, current medications, and overall health.
They can also discuss the safest formulations and help identify possible interactions with chemotherapy, immunotherapy, or other cancer treatments.
Be sure to tell your health care team:
- Which cannabis product you plan to use
- Whether it contains THC, CBD, or both
- How you plan to take it
- How often you plan to use it
Open communication helps ensure medical marijuana and other alternative therapies are used safely alongside standard treatments.
Using Medical Marijuana for Mesothelioma Safely
Managing mesothelioma symptoms can be challenging, and deciding whether medical marijuana or other complementary treatments may be appropriate often raises questions.
At Mesothelioma Hope, we’re ready to help you understand how alternative therapies like medical marijuana can fit safely within your treatment plan.
Our dedicated team can assist you with:
- Connecting with experienced mesothelioma specialists
- Exploring treatment options, clinical trials, and financial resources
- Learning about alternative treatments like medical marijuana
- Managing symptoms such as pain, nausea, anxiety, and loss of appetite
Call our Patient Advocates at (866) 608-8933 or get our Free Mesothelioma Guide to learn more about supportive options after a diagnosis.
Medical Marijuana and Mesothelioma FAQs
What type of marijuana is most effective for cancer treatment?
Which marijuana or cannabis product will be best after a mesothelioma diagnosis depends on your specific symptoms and preferences.
There’s a wide range of products, some of which include THC, the cannabinoid that produces a “high,” while others only include CBD, which doesn’t have the same intoxicating effects.
Your cancer care providers can give you a better idea of which products could be most effective for your situation.
Why do cancer patients use marijuana?
Mesothelioma patients may use marijuana or cannabis products to help with anxiety, sleep disruption, pain relief, appetite loss, and most notably nausea and vomiting caused by chemotherapy.
In some situations, cancer patients have found relief through marijuana when other options, such as medications, didn’t work as effectively.
Our Free Doctor Questions Checklist can help you get answers from your doctor about which therapies will work best to treat your cancer and relieve symptoms.
Can cheap THC pens give you mesothelioma?
No, THC vape pens cannot give you mesothelioma. The only known cause of mesothelioma is exposure to asbestos, and THC pens aren’t known to contain this toxic substance.
However, vaping and smoking marijuana products can cause long-term damage to the lungs. If you’re facing cancer, ask your doctor about non-inhaled options like edible CBD or THC products.
Is medical marijuana legal for mesothelioma patients?
Medical marijuana is legal in many states, but laws vary. Eligibility requirements, approved medical conditions, and product availability depend on where you live.
Mesothelioma patients should review their state’s medical cannabis laws and speak with their health care provider before using medical marijuana.
Can CBD treat mesothelioma?
No. There is no evidence that CBD can treat or cure mesothelioma. Current evidence only supports its use for managing certain symptoms and treatment side effects in some patients.
A mesothelioma doctor can determine whether or not marijuana or CBD products will help you after a diagnosis.
Call (866) 608-8933 for help connecting with top mesothelioma specialists and learning which options can work best in your situation.
Can medical marijuana interfere with cancer treatment?
Yes. Medical marijuana may interact with certain medications used during mesothelioma treatment, including chemotherapy, immunotherapy, and other prescription drugs.
Because these interactions can vary, patients should always discuss cannabis use with their mesothelioma doctors before starting any medical marijuana or CBD products.
Can marijuana use cause mesothelioma?
The only known cause of mesothelioma is asbestos exposure. Marijuana isn’t known to cause mesothelioma.
If you or a loved one has been diagnosed with mesothelioma, there’s likely some sort of asbestos exposure history — even if you aren’t sure when, where, or how it happened.
