A member asked:

Since imdur is a long-acting formulation of nitroglycerin, can you take 30 mg er imdur instead of nitroglycerin 0.4% ointment to treat anal fissure?

A doctor has provided 1 answer

More systemic effect: The Nitroglycerin ointment is applied for its local effects. Imdur taken orally would have more systemic effects such as lowering blood pressure and possibly headaches.

Answered 3/14/2016

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How can topical nitroglycerin help in treating chronical anal fissure?

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