CBD During Chemotherapy: What Cancer Patients Need to Know
If you're going through chemotherapy, you're dealing with enough. This page gives you clear, honest information about CBD during cancer treatment, what the research shows, how Medicare may help, and what to discuss with your oncologist.
Related: CBD for Cancer Pain | For Oncology Clinics | Medicare CBD Guide
The Range of Chemotherapy Side Effects CBD Has Been Studied For
Chemotherapy affects the entire body. Common side effects that significantly impact quality of life include nausea and vomiting, cancer-related and treatment-related pain, severe fatigue, appetite loss and weight loss, chemotherapy-induced peripheral neuropathy (nerve pain), and sleep disruption. These effects often compound each other, pain disrupts sleep, sleep deprivation worsens pain perception, appetite loss affects the ability to tolerate treatment.
CBD has been explored in the context of several of these side effects. The research is at varying stages for each, more developed for pain and sleep, earlier-stage for nausea specifically (where THC has stronger evidence). Be skeptical of oversimplified claims in either direction.
What Research Shows
A 2020 review in the Journal of Clinical Oncology Oncology Practice found that cancer patients using cannabis products (including CBD-dominant products) reported improvements in pain, sleep, and anxiety. A 2019 study in European Journal of Internal Medicine found that 70% of cancer patients using CBD reported improvement in their general condition. For chemotherapy-induced neuropathy specifically, early research shows promise but large clinical trials are still needed.
For nausea, THC has stronger evidence than CBD. CBD may have a complementary role through serotonin system modulation. Never substitute CBD for your prescribed anti-nausea medications without oncologist guidance. See: pubmed.ncbi.nlm.nih.gov.
How the Medicare Cancer Program Applies
The Enhancing Oncology Model is the Medicare program pathway for cancer patients. Oncology practices enrolled in this program can provide qualifying oral CBD products to eligible patients at no charge, up to $500 per year. Ask your oncologist whether their practice participates. For clinic administrators, see our oncology wholesale page.
Our Products for Chemo Patients
Tinctures are often the most practical format during chemotherapy, no chewing required, flexible dosing, can be mixed into beverages. All our products are USDA Organic, third-party lab tested, and compliant with the Medicare program. Browse our oral CBD options.
Talk to Your Oncologist First
This is the most important thing on this page. Your oncologist needs to know you're considering CBD during treatment. Drug interactions are real and potentially significant. See: how to ask your doctor.
Frequently Asked Questions
Is it safe to take CBD during chemotherapy?
CBD is generally tolerated during cancer treatment, but drug interactions are a real consideration. CBD inhibits certain CYP450 liver enzymes that metabolize some chemotherapy drugs. Depending on your specific drugs, this could increase or decrease their effectiveness. Your oncologist needs to know you're taking or considering CBD. Never start CBD during chemotherapy without your oncologist's knowledge and approval.
Can CBD help with nausea from chemo?
Some cancer patients report that CBD helps with chemo-related nausea. THC is the cannabinoid with the strongest evidence for anti-nausea effects, it's the active ingredient in the FDA-approved drug dronabinol. CBD's anti-nausea evidence is more limited but present. Research suggests CBD may modulate the serotonin system involved in nausea regulation. Talk to your oncologist about anti-nausea options including CBD.
Does Medicare cover CBD for chemo patients?
Yes, through the Enhancing Oncology Model. Oncology practices enrolled in this CMS program can provide up to $500 per year in qualifying oral CBD products to eligible cancer patients at no charge. Ask your oncologist whether their practice is enrolled in the Enhancing Oncology Model and whether they've elected the Substance Access BEI benefit.
Will CBD interact with my chemotherapy drugs?
It can. CBD inhibits the CYP3A4 and CYP2D6 enzymes that metabolize many chemotherapy drugs including docetaxel, paclitaxel, irinotecan, and others. Interactions can go in either direction, increasing or decreasing drug levels in your blood. Your oncologist and a clinical oncology pharmacist are the right people to evaluate your specific drug regimen for potential interactions.
What form of CBD is easiest to take when nauseous from chemo?
Tinctures are often the easiest option for patients with nausea. They can be dissolved under the tongue without swallowing a large capsule or chewing a gummy, which can be difficult when nauseous. Mixing a tincture into a small amount of juice or water is another option. Gummies may work well on lower-nausea days. Discuss with your oncology team what format and timing makes the most sense for your treatment schedule.
