Isosorbide Mononitrate ER

Medically Reviewed by Dr. Harshi Dhingra, M.D.

Last Reviewed: Jul 11, 2023

Pros & Cons


Isosorbide Mononitrate Pros and Cons

pros header.svg

  • Isosorbide mononitrate can effectively prevent angina attacks in people with coronary heart disease.
  • It is available in a lower-cost generic version.
  • You only need to take the extended-release (long-acting) forms once daily.

cons header.svg

  • Taking isosorbide mononitrate does not relieve chest pain after an angina attack has begun.
  • You need to take the short-acting tablets on a specific schedule with the doses 7 hours apart for the medicine to work well.
  • Many people develop headaches on isosorbide mononitrate.
  • This medicine can interact with drugs used to treat erectile dysfunction (ED), such as Viagra and Cialis.