Isosorbide Mononitrate- Uses and latest side-effects 2021

Isosorbide mononitrate


Isosorbide mononitrate is available in the online and offline market under many brand names. It is a medication that helps in the treatment of heart-related issues, chest pain, and esophageal spasms. But its preference is low than beta-blockers or calcium channel blockers.

It prevents chest pain that is related to a certain heart condition. This medicine is also known as nitrates because it belongs to that class of drugs. Its main work is to relax and widen the blood vessels, so that blood can flow more easily to the heart.

This medication never relieves chest pain once it occurs. Also, never take this medicine before physical activities or intercourse. Always consult your doctor before starting any medication.

Isosorbide mononitrate

Usage of isosorbide mononitrate oral

Isosorbide mononitrate oral means to take this medicine by mouth. Always follow the doctor’s prescription. Usually, this medicine is taken twice daily. The first dose should be as soon as you wake up. The second dose should be 7 hours later.

Try to take the medication at the same time daily. Never change its time by yourself follow the doctor’s guidelines. Take this medicine regularly to make the most out of it. Never suddenly stop taking it as it may show up withdrawal symptoms. Slowly decrease the amount of dosage.

If you experience any kind of worsening condition, immediately consult your doctor. Sometimes this medicine stop showing effects or worse the condition. So everything about this needs to be told to the doctor.

Side Effects

Isosorbide mononitrate has some common side effects which can be easily treated, but if the side effects are worse or intolerable, immediate help is recommended. Some common side effects include headache, dizziness, nausea, and flushing.

According to medical studies, headache is a sign of working of the medicine which is treated with the over-the-counter pain relievers. But if headaches becomes severe or continues after taking pain reliever then, consult your doctor. Dizziness and lightheadedness can be reduced by getting up slowly from a sitting or lying position.

Serious side effects of this medication are fainting, irregular heartbeats, allergies, trouble breathing. If any of these happens, then consult your doctor or seek emergency help.


Before starting any medicine, always tell your doctor about your medical history or the current situation. If you taking or taken any medicines. If you are allergic to any drug, past surgeries, or current prescription.

This will help the doctor in deciding the amount the dosage and understanding your body internally. Side effects of this drug includes dizziness, so never mix it with alcohol or marijuana as it can make you more dizzi.

Avoid using heavy machinery and driving after consuming this medicine, as it makes a person a bit slow. In older people, it is found that this medicine makes them dizzier, and the chances of falling are high.

Try to avoid using isosorbide mononitrate if you are pregnant or breast-feeding. There is no visible study that shows that it passes into breast milk or not, but if isosorbide mononitrate can be avoided then why not.

 isosorbide mononitrate


Always follow the doctor’s prescription and the dosage prescribed. There are some side effects that can happen when this medicine is taken more than the prescribed dosage. Side effects are blurred or loss of vision, change in consciousness, cold or clammy skin, double vision, halos around lights, night blindness, or paralysis.

Brand Names

Isosorbide mononitrate comes in different brand names:

  1. Imdur
  2. Imdur ER
  3. Ismo
  4. Monoket
Isosorbide mononitrate


This medicine comes in tablet form with different power and efficiency.


  • 10 mg
  • 20 mg

Tablets, extended release

  • 30 mg
  • 60 mg
  • 120 mg

This drug should always be taken under a professional guidance. Never mix it with different drugs and consult your doctor if anything unusual happens.

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