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Brand Names: Imdur, ISMO, Monoket
Generic Name: isosorbide mononitrate
Manufacturer: Astra Zeneca
What is Imdur?
Imdur is in a class of drugs called nitrates. Imdur dilates (widens or relaxes) blood vessels (arteries and veins). When blood vessels are dilated, it is easier for the heart to pump. Also, more blood, which is rich in oxygen, can flow to the heart.
Isosorbide is used to prevent angina attacks (chest pain).
Imdur may also be used for purposes other than those listed in this medication guide.
What is the most important information I should know about Imdur?
Use Imdur exactly as directed. Follow your doctor's instructions, especially about the timing of your doses. Your blood needs to be free of isosorbide mononitrate for a certain period every day.
You may develop a headache because of this medicine, but do not stop taking it. Take aspirin or acetaminophen to treat the headache. Ask your doctor which is best for you. This side effect usually goes away as treatment with Imdur continues.
Do not stop taking Imdur suddenly. Stopping suddenly could cause a severe angina (chest pain) attack.
Do not drink alcohol while taking this medication.
What should I discuss with my healthcare provider before taking Imdur?
- Before taking this medication, tell your doctor if you:
- have had a heart attack
- have congestive heart failure
- have low blood pressure;
have had a stroke, a transient ischemic attack (TIA, or mini-stroke), or a serious head injury;
- have anemia;
- have an allergy to nitrates;
- have closed-angle glaucoma;
- suffer from migraines;
- have kidney disease; or
have liver disease.
The conditions listed above may prevent you from taking isosorbide or you may need a dosage adjustment or special monitoring during your therapy.
Imdur is in the FDA pregnancy category C. This means that it is not known whether it will harm an unborn baby. Do not take Imdur without first talking to your doctor if you are pregnant. It is also not known whether isosorbide passes into breast milk. Do not take Imdur without first talking to your doctor if you are breast-feeding a baby.
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