I took for 14 days. Headache developed day 3. Day 12 I reduced dose to 50 mg from 100. I stopped taking day 14. Day 15 I still have slight headache. I am hoping by tomorrow it will be gone. Dr.'s nurse is puzzled - headache is not listed side effect. Wondering if there is anyone else who experienced this problem.
Headaches is not a known side effect of mercaptopurine, however it may be the cause. I couldn't find any reviews to help you either. Please try the forum. Someone there may have experienced it themselves or may known of someone who has suffered headaches due to mercaptopurine.
- Mercaptopurine Information for Consumers
- Mercaptopurine Information for Healthcare Professionals (includes dosage details)
- Side Effects of Mercaptopurine (detailed)
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