Isosorbide mononitrate is used to prevent angina pain. It relaxes the blood vessels, allowing more blood to flow to the heart.
Take isosorbide mononitrate regularly as directed with a glass of water.
Take the slow-release tablets at the same time each day. Swallow the tablet or the divided halves whole. Do not crush or chew.
Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.
Some medicines available without a prescription may react with isosorbide mononitrate including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products or recreational drugs.
|Side Effects||Recommended action|
Change in heartbeat, fainting
|Tell your doctor|
|Common when treatment begins - if side effects continue or are severe, tell your doctor.|
Lightheaded or dizzy after standing up
|Stand up slowly. If it continues, or is severe, tell your doctor|
|Tell your doctor if troublesome|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. April 2016
For more general information about this sheet annd its contents, see: What does a My Medicines sheet cover?
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My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed