Why is it bad to take maxalt (rizatriptan) if you have raynaud's disease?

Constricts vessels. Maxalt (rizatriptan) relieves migraine symptoms by constricting blood vessels. In raynaud's disease, the problem is too much constriction of blood vessels, so one would not want to take a medicine that constricts vessels.

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What are the implications of taking maxalt (rizatriptan) if you have raynaud's disease?

Theoretical risk. Maxalt (rizatriptan) is best contraindicated in patients who have a history of heart disease or stroke. Raynaud's is a problem of vascular instability, in peripheral blood vessels, and would be a safer category, but triptans do affect blood vessel caliber and even can raise blood pressure, so check with your doctor regarding your particular issues. Read more...