Cocaine usage & chemotherapy

by Swaby

I'm addicted to cocaine and was recently diagnosed with breast cancer. I have had surgery but will be be starting chemotherapy within the next 1-2 weeks followed by radiotherapy at the end of the chemo.

Will taking cocaine affect me ability to have chemotherapy? Are there any risks I should be aware of & if I stop taking cocaine now, how long will it take before it is out of my system?

Comments for Cocaine usage & chemotherapy

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You MUST ask your doctor!!
by: Debbie Wicker

Dear Swaby,

I'm so very sorry that you have breast cancer. You must take all of you energy to fight this terrible disease.

I believe taking cocaine while you're receiving chemo will be catastrophic for you but I am not a doctor. You MUST MUST MUST ask your doctor this question and allow him/her to help you to make the best choices possible for your health. It might be necessary to delay your treatment until the cocaine is completely out of your system. This may take up to 30 days after last use.

Please let your doctor know the situation you're dealing with so that they can help you to get better and fight this terrible disease.

Good Luck,


by: Anonymous

Asking for a friend: What would cocaine do to u while she's on her 2nd treatment of Chemotherapy?

Very little research has been done.
by: Debbie Wicker

Dear Coke,

Some research has been done on the long-term negative mental health effects on the brain caused by chemotherapy. It has shown that chemo does potentially have negative short-term and long-term affects on the brain. The research is beginning to show that chemo can negatively affect reasoning and memory.

There has likely been no research done on combining cocaine with chemo, so technically, the answer to your question is the affects of combining them is unknown. But it's very hard to imagine that the effects will be positive because cocaine has very negative affects on the brain even without adding chemo to your friends situation.

It's important that your friend consults their doctor about cocaine use and lets their doctor determine the best course of action to avoid combining chemo and cocaine in the brain. Waiting to administer the chemo until your friend has a "clean" drug test for cocaine is likely what the doctor will choose.

Hope that helps,


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