Bidil, Isoditrate, Isochron, Isordil Medication Summary
No separate FDA Medication Guide was found for this label. This summary is based on FDA/DailyMed prescribing information.
What is this medication?
This medication is described in FDA/DailyMed prescribing information. No separate FDA Medication Guide was found for this label. This summary is based on FDA/DailyMed prescribing information.
What is this medication used for?
Isosorbide Dinitrate Extended-release Tablets are indicated for the prevention of angina pectoris due to coronary artery disease. The onset of action of controlled- release oral isosorbide dinitrate is not sufficiently rapid for this product to be useful in aborting an acute anginal episode.
What should I know before taking it?
Allergic reactions to organic nitrates are extremely rare, but they do occur. Isosorbide Dinitrate Extended-release Tablets are contraindicated in patients who are allergic to isosorbide dinitrate or to any of its other ingredients.
What important warnings are listed?
Amplification of the vasodilatory effects of isosorbide dinitrate by sildenafil can result in severe hypotension. The time course and dose dependence of this interaction have not been studied. Appropriate supportive care has not been studied, but it seems reasonable to treat this as nitrate overdose, with elevation of the extremities and with central volume expansion. The benefits of controlled-release oral isosorbide dinitrate in patients with acute myocardial infarction or congestive heart failure have not been established. If one elects to use isosorbide dinitrate in these conditions, careful clinical or hemodynamic monitoring must be used to avoid the hazards of hypotension and.
How is this medication usually taken?
As noted under “ ” multiple-dose studies with ISDN and other nitrates have shown that maintenance of continuous 24-hour plasma levels results in refractory tolerance. Every dosing regimen for Isosorbide Dinitrate Extended-release Tablets must provide a daily dose-free interval to minimize the development of this tolerance. With immediate-release ISDN, it appears that one daily dose-free interval must be at least 14 hours long. The necessary dose- free interval for Isosorbide Dinitrate Extended-release Tablets has not been clearly identified, but is presumably somewhat longer. CLINICAL PHARMACOLOGY As also noted under “ , only one trial has ever studied the use of controlled-release.
What side effects are listed?
Adverse reactions to isosorbide dinitrate are generally dose-related, and almost all of these reactions are the result of isosorbide dinitrates activity as a vasodilator. Headache, which may be severe, is the most commonly reported side effect. Headache may be recurrent with each daily dose, especially at higher doses. Transient episodes of lightheadedness, occasionally related to blood pressure changes, may also occur. Hypotension occurs infrequently, but in some patients it may be severe enough to warrant discontinuation of therapy. Syncope, crescendo angina, and rebound hypertension have been reported but are uncommon. Extremely rarely, ordinary doses of organic nitrates have caused.
What interactions are listed?
The vasodilating effects of isosorbide dinitrate may be additive with those of other vasodilators. Alcohol, in particular, has been found to exhibit additive effects of this variety.
Where can I find the official prescribing information?
Review the full prescribing information on DailyMed: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=332ec9c1-4e7d-4051-830e-0d17cacd5d78
⚠️ Disclaimer
This summary is for educational purposes only and is not medical advice. Always consult your doctor, pharmacist, or other licensed healthcare professional before starting, stopping, or changing any medicine. Read full medical disclaimer.