Cannabis may help some people manage treatments for breast cancer

October 21, 2025

By Dr. Brooke Worster

More patients than ever are asking how cannabis can help during and after breast cancer treatment. As supportive oncology physician, I’ve heard these questions for years. It was frustrating not to have better answers. So I entered this research space. Patients were exploring cannabis on their own, and they’re right to ask.

People deserve medically sound, research-informed guidance.

Cannabis can be a supportive tool for managing chemotherapy-induced nausea, improving sleep, easing chronic pain, and reducing anxiety. International studies support these benefits, but U.S. research has lagged due to federal restrictions. Through Pennsylvania’s academic clinical research program, Thomas Jefferson University and Ethos Cannabis are working to close those knowledge gaps by collecting real-world evidence from patients. Together, we’re redefining how cannabis fits into care.

Clinicians and dispensary staff often operate in separate silos. Our goal is to bridge that gap, offering patients clear, consistent, and safe access. We’re studying how cannabis interacts with different conditions, delivery systems, and patient needs so care can be tailored, rather than trial-and-error.

Still, cannabis is widely misunderstood as unsafe or only available in smokable form. In reality, today’s cannabis includes non-combustible, measured options, prioritizing safety and control. Patients deserve informed choices that support their wellness journey.

Cannabis won’t be right for everyone. But for many, it may offer relief, dignity, and a renewed sense of control.

This Breast Cancer Awareness Month, let’s expand the conversation and ensure patients have access to education and tools that may help them feel better.

Dr. Brooke Worster is Chief Medical Consultant, Ethos Cannabis Professor, Enterprise Director – Division of Supportive Oncology, Thomas Jefferson University.

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