Breast cancer comes into lives already full of stresses, obligations, financial worries, and for some, struggles with alcohol or other substances. In fact, research shows that breast cancer patients may have increased rates of alcohol or substance use, sometimes as a way of coping with pain, anxiety, or the emotional toll of diagnosis and treatment. It’s something people often hesitate to talk about. Yet substance use can impact how well your cancer treatment works, and managing it is an important part of your overall care. Alcohol and drug use can interfere with many aspects of cancer care. Some chemotherapy agents and pain medications interact poorly with alcohol or certain drugs, increasing side effects or reducing effectiveness. Drinking may also worsen liver function, which is critical when your body is working hard to process cancer treatments. Beyond that, heavy alcohol or drug use can weaken your immune system at a time you need it strongest. If you’re worried about your substance use, you’re not alone.
Some people may need medical detox, a supervised process to safely withdraw from alcohol or drugs. This is especially important if you’ve been drinking heavily for a long time or using substances like opioids or benzodiazepines, where quitting abruptly can be dangerous. From there, many benefit from rehabilitation programs, which may be inpatient (residential) or outpatient. These programs provide counseling, group support, and sometimes medication to help you stay on track. Importantly, there are rehab centers experienced in working with people who have serious medical conditions like cancer, so you don’t have to choose between treating your addiction and treating your cancer. Recovery doesn’t end when rehab does. Many people find ongoing support through aftercare programs, which might include sober living homes, outpatient counseling, or support groups. Staying connected reduces the risk of relapse and helps you navigate the emotional roller coaster of cancer treatment without turning back to substances. Look for programs that understand the unique challenges of facing cancer and recovery at the same time. Some cancer centers offer integrated psychosocial oncology services, connecting you to mental health professionals who specialize in cancer care. Substance use during cancer treatment is more common than many realize. It’s often an understandable way people try to cope with overwhelming stress and fear. But you deserve support that helps you heal physically, emotionally, and spiritually.
If you’re concerned about your drinking or drug use:
American Cancer Society. (2022). Alcohol Use and Cancer. Retrieved from https://www.cancer.org/cancer/cancer-causes/diet-physical-activity/alcohol-use-and-cancer.html
March 27, 2025, March 7, 2025, & March 4, 2025. (n.d.). In people with cancer, heavy drinking is common. In People with Cancer, Heavy Drinking is Common- NCI. https://www.cancer.gov/news-events/cancer-currents-blog/2023/cancer-survivors-alcohol-drinking-common
