Rung Five
All evidence
Rung 3 · Moderate

Cannabinoids for chemotherapy nausea

An option when standard anti-nausea drugs aren't enough.

Side-effect supportWith your doctor

What studies found

ASCO's 2024 guideline says dronabinol or nabilone (moderate-quality evidence), or a quality-controlled 1:1 THC:CBD extract (low-quality evidence), may be added for nausea that persists despite standard prevention.

The catch

Evidence is insufficient for cancer pain and other symptoms. ASCO advises against using cannabis to treat the cancer itself, and against 300 mg or more of CBD a day, which can raise liver enzymes.

What to do

Ask your team; it comes after guideline anti-nausea drugs, including olanzapine.

Sources

Rung 3 of 5, Moderate: Consistent observational studies or small trials, not yet confirmed by large trials. How we score

To take it to your doctor, print this page.

Related

Every option we rated, or follow one cancer step by step: breast cancer, colorectal cancer, lung cancer and prostate cancer.