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Isosorbide mononitrate, Isosorbide dinitrate, Glyceryl trinitrate (GTN)

Drug Class: Commonly Known As: Category:
Cardiovascular Agent Adult

Isosorbide mononitrate, Isosorbide dinitrate, Glyceryl trinitrate (GTN) - Additional Information

If you have been taking this medicine regularly for several weeks or more, do not suddenly discontinue use. Sudden discontinuation may precipitate angina attacks. Ask your doctor for recommendations on how to reduce the dose gradually before stopping completely.

Other storage information

  • Store it in a cool, dry place away from excessive heat and moisture.
  • For GTN tablets: The active ingredient evaporates very quickly from the tablet, as such the following conditions should be observed as far as possible to ensure the continual potency of your tablets.
  • Keep the tablets in the original brown glass container in sealed condition until first use.
  • Never transfer the tablets into other containers.
  • Store the brown glass container in a cool, dry place.
  • Do NOT store the tablets in the refrigerator.
  • Carry the tablets wherever you go, but try not to keep them close to your body; carry them in a purse or a bag instead.
  • Label the bottle with the opening date upon first use. If you do not finish using the tablets within 2 months from the opening date, discard the old tablets and obtain a fresh supply.
  • Updated on Friday, February 1, 2019
  • Article contributed by Department of Pharmacy National Heart Centre Singapore

    The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth


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