Imdur

(Isosorbide Mononitrate)

2.9/ 5 average rating with 34 reviewsforImdur
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Relieves chest pain.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

Isosorbide mononitrate is good for chest pain, but you have to be able to stick to your dosing schedule or it won't work as well.

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  • Lowest price with coupon
    $4.00
Quick facts about Imdur
  • Drug class: Cardiovascular
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (isosorbide mononitrate)

Upsides

  • Prevents heart-related chest pain (angina) from the narrowing of heart blood vessels (coronary artery disease).
People’s experience with Imdur

34reviews so far. What do you think?

Downsides

  • You can develop tolerance to this medicine over time, which means that the same dose becomes less effective. You have to stick to a really specific dosing schedule to prevent this from happening.
  • Headaches are normal with this medicine and they go away as your body gets used to it, but they can be severe or not tolerable for some people.
How it works

Isosorbide mononitrate is a nitrate. It dilates blood vessels all over the body. This makes it less work for the heart to pump, which relieves heart-related chest pain.

Quick facts about Imdur
  • Drug class: Cardiovascular
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (isosorbide mononitrate)

Dosage forms

  • Pill
  • Extended release
People’s experience with Imdur

34reviews so far. What do you think?

Prices and coupons

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Side effect rates for Imdur (Isosorbide Mononitrate)

From 156 clinical trials of Imdur when taken for angina (extended release 30mg)
  • Headache
    38%38%
    15%15%
  • Dizziness
    8%8%
    4%4%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Imdur.

Imdur (Isosorbide Mononitrate)
Placebo

People taking Imdur felt side effect more

People taking Imdur felt side effect less

No difference

Risks and Warnings for Imdur (Isosorbide Mononitrate)

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    • Higher risk if:
    • Concurrent use of erectile dysfunction medicine
    • Age 65 years or older
    • Alcohol use

    Don't use Imdur (Isosorbide Mononitrate) with an erectile dysfunction medicine without talking to your doctor. You can feel dizzy or fall from a sudden drop in blood pressure when you change positions, such as going from sitting to standing. This is called orthostatic hypotension. If you're sensitive to low blood pressure, change position slowly until your body is used to the medicine. If you continue to feel dizzy or have episodes of fast heart rate a week after using Imdur (Isosorbide Mononitrate), dose adjustment or a different medication may be needed.

Pharmacist Q&A

Imdur (Isosorbide Mononitrate) questions for

Frequently Asked Questions

This medication prevents angina pectoris.

Who is this drug for?

This medication prevents angina pectoris.

Common concerns from people taking Imdur (Isosorbide Mononitrate)

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Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Tip: Always talk with your doctor before you take any medication while pregnant.
FDA pregnancy category for Imdur
CWeigh risks vs. benefits
Alcohol
  • Don't drink alcohol while taking this medicine. It can make you really dizzy.