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iso- 5 - mononitrate

Pfizer's Upjohn has merged with Mylan to form Viatris Inc. · FDA-approved active Small molecule ✓ Verified May 2026

iso- 5 - mononitrate is a Nitrate vasodilator Small molecule drug developed by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. It is currently FDA-approved for Angina pectoris (prophylaxis and acute relief), Coronary artery disease.

Isosorbide 5-mononitrate is a nitrate vasodilator that releases nitric oxide to relax vascular smooth muscle and improve blood flow.

Isosorbide mononitrate is being studied in clinical trials for conditions such as labor fast, IUD insertion complication, heart decompensation, coronary heart disease, and unstable angina. Specifically, it is being investigated as a potential treatment for labor induction, with one trial using a combination of isosorbide mononitrate and misoprostol for this purpose.

At a glance

Generic nameiso- 5 - mononitrate
SponsorPfizer's Upjohn has merged with Mylan to form Viatris Inc.
Drug classNitrate vasodilator
TargetSoluble guanylate cyclase (via nitric oxide)
ModalitySmall molecule
Therapeutic areaCardiovascular
PhaseFDA-approved

Mechanism of action

The drug is metabolized to nitric oxide, which activates guanylate cyclase in vascular smooth muscle cells, increasing cGMP levels and causing vasodilation. This reduces preload and afterload on the heart, decreasing myocardial oxygen demand and improving coronary blood flow. It is used primarily for angina prophylaxis and symptom relief in coronary artery disease.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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Frequently asked questions about iso- 5 - mononitrate

What is iso- 5 - mononitrate?

iso- 5 - mononitrate is a Nitrate vasodilator drug developed by Pfizer's Upjohn has merged with Mylan to form Viatris Inc., indicated for Angina pectoris (prophylaxis and acute relief), Coronary artery disease.

How does iso- 5 - mononitrate work?

Isosorbide 5-mononitrate is a nitrate vasodilator that releases nitric oxide to relax vascular smooth muscle and improve blood flow.

What is iso- 5 - mononitrate used for?

iso- 5 - mononitrate is indicated for Angina pectoris (prophylaxis and acute relief), Coronary artery disease.

Who makes iso- 5 - mononitrate?

iso- 5 - mononitrate is developed and marketed by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. (see full Pfizer's Upjohn has merged with Mylan to form Viatris Inc. pipeline at /company/pfizer-s-upjohn-has-merged-with-mylan-to-form-viatris-inc).

What drug class is iso- 5 - mononitrate in?

iso- 5 - mononitrate belongs to the Nitrate vasodilator class. See all Nitrate vasodilator drugs at /class/nitrate-vasodilator.

What development phase is iso- 5 - mononitrate in?

iso- 5 - mononitrate is FDA-approved (marketed).

What are the side effects of iso- 5 - mononitrate?

Common side effects of iso- 5 - mononitrate include Headache, Dizziness, Hypotension, Tachycardia, Nausea.

What does iso- 5 - mononitrate target?

iso- 5 - mononitrate targets Soluble guanylate cyclase (via nitric oxide) and is a Nitrate vasodilator.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing