Compare Imdur vs. Isordil

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Imdur
(isosorbide mononitrate)

Isordil
(isosorbide dinitrate)

Relieves chest pain. 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.Relieves chest pain. Isosorbide dinitrate is good for chest pain, but you have to be able to stick to your dosing schedule or it won't work as well.
Find lowest prices
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Coupons for Imdur
Best available price for 60 (20mg) tablets of isosorbide-mononitrate
Coupons for Isordil
Best available price for 90 (10mg) tablets of isosorbide-dinitrate
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
3.85Imdur
Reviews for Imdur
47%
of people (All ages) say Imdur is worth it
29%
say it works well
32%
say it's a big hassle
Have you used Imdur (isosorbide mononitrate)?
Worth itNot sureNot worth it
Reviews for Isordil
46%
+1% better vs. Imdur
24%
+5% better vs. Imdur
20%
-12% worse vs. Imdur
Have you used Isordil (isosorbide dinitrate)?
Worth itNot sureNot worth it
Side effects
ImdurIsordil
  • Dizziness 4%
More Imdur side effects »

The Isordil FDA package insert doesn’t have numbers about how common side effects are.

More about Isordil side effects »
How it works
ImdurIsordil
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.Isosorbide dinitrate 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.
Type of medication
ImdurIsordil
Prescription onlyPrescription only
Available as
ImdurIsordil
  • Pill
  • Extended release
  • Pill
  • Extended release
Used for
ImdurIsordil
Risk factors for serious side effects
ImdurIsordil
  • Concurrent use of erectile dysfunction medicine
  • Age 65 years or older
  • Alcohol use
  • Long term use
Detailed Imdur (isosorbide mononitrate) risks & warnings »
  • Age 65 years or older
  • Taking drugs for erectile dysfunction
  • Alcohol use
Detailed Isordil (isosorbide dinitrate) risks & warnings »
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.

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.

Alcohol
ImdurIsordil
  • Don't drink alcohol while taking this medicine. It can make you really dizzy.
  • Don't drink alcohol while taking this medicine. It can make you really dizzy.
Upsides and benefits
ImdurIsordil
  • Prevents heart-related chest pain (angina) from the narrowing of heart blood vessels (coronary artery disease).
  • Treats and prevents heart-related chest pain (angina) from the narrowing of heart blood vessels (coronary artery disease).
Downsides and risks
ImdurIsordil
  • 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.
  • 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.
Tips from our pharmacists for people taking the medication
ImdurIsordil
  • Can cause headaches, dizziness, lightheadedness, or fainting. Headache can be a sign that the medicine is working.
  • Don't drink alcohol while taking this medicine. It can make you really dizzy.
  • Tell your doctor if you're taking any medicine for erectile dysfunction.
  • Don't stop taking this medicine suddenly.
  • Can cause headaches, dizziness, lightheadedness, or fainting.
  • Don't drink alcohol while taking this medicine. It can make you really dizzy.
  • Tell your doctor if you're taking any medicine for erectile dysfunction.
  • Don't stop taking this medicine suddenly.
Learn more
More about ImdurSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Imdur (isosorbide mononitrate)?
Worth itNot sureNot worth it
More about IsordilSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Isordil (isosorbide dinitrate)?
Worth itNot sureNot worth it