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Dilatrate-SR (Isosorbide Dinitrate) - Side Effects and Adverse Reactions

 
 



ADVERSE REACTIONS

Adverse reactions to isosorbide dinitrate are generally dose related, and almost all of these reactions are the result of isosorbide dinitrate's 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 methemoglobinemia in normal-seeming patients. Methemoglobinemia is so infrequent at these doses that further discussion of its diagnosis and treatment is deferred (see OVERDOSAGE).

Data are not available to allow estimation of the frequency of adverse reactions during treatment with dilatrate®-SR sustained release capsules.

Drug label data at the top of this Page last updated: 2014-10-31

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