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Isosorbide 5-mononitrate pharmacokinetics.

|January 1, 1987

Summary

This summary is machine-generated.

Isosorbide 5-mononitrate offers unique advantages over other organic nitrates due to its excellent oral absorption and predictable pharmacokinetics. This makes it a potentially suitable option for convenient once-daily dosing in patients.

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Area of Science:

Pharmacology
Clinical Pharmacy
Drug Metabolism

Background:

Organic nitrates are commonly used as vasodilators.
Isosorbide 5-mononitrate possesses distinct pharmacokinetic properties compared to other nitrates.

Purpose of the Study:

To characterize the pharmacokinetic profile of isosorbide 5-mononitrate.
To evaluate its suitability for clinical use and potential for sustained-release formulations.

Main Methods:

Pharmacokinetic analysis of isosorbide 5-mononitrate.
Assessment of plasma protein binding and metabolic pathways.
Evaluation in healthy subjects and patients with cardiac, renal, or hepatic disease.

Main Results:

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Isosorbide 5-mononitrate exhibits near-complete oral absorption with low intersubject variability.

It has a long half-life (4.4 h), lacks active metabolites, and is primarily metabolized by denitration and conjugation.

Pharmacokinetics remain consistent across different disease states and are linear with dosage.

Conclusions:

Isosorbide 5-mononitrate demonstrates favorable pharmacokinetic characteristics for clinical application.
Its properties support the development of once-daily sustained-release formulations.
The drug's predictable profile is maintained in patients with cardiac, renal, or hepatic impairment.