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A member asked:

How long will the headache last as the side effects of sublingual nitroglycerine persist?

A doctor has provided 1 answer
Dr. Yvette Kratzberg answered

Specializes in Pediatrics

Nitroglycerin works by opening the arteries of the heart, thus reducing the pain. A common side effect is headaches caused by this same medication opening the arteries of the brain. The effect wears off over a few hours.

Answered 3/22/2022

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