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A 40-year-old member asked:

Would it be safe to take cataplex b while taking arimidex (anastrozole)?

1 doctor answer3 doctors weighed in
Dr. Devon Webster
Medical Oncology 23 years experience
Unknown: There should not be interactions between cataplex b (vitamin B6 and b12) and arimidex. However, there may be a role for b vitamins in cancer growth. In a nov 18, 2009 jama article, vitamin B12 and folate supplementation increased death from cancer. Some anti-cancer drugs work by blocking folate, part of the b vitamin pathway. I caution oversupplementing with b vitamins if you have had cancer.

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Last updated Jun 15, 2021
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