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Long acting nitrates are taken 2-3 times per day and can be used to prevent angina. [6] Beta-blockers may also be used to reduce the incidence of chronic angina. [6] Beta-blockers prevent episodes of angina by reducing heart rate and reducing the strength of contraction of the heart, which lowers oxygen demand in the heart. [6]
The nitrates are used for the treatment and prevention of angina and acute myocardial infarction, while molsidomine acts too slowly to be useful for the treatment of acute angina. [2] For quick action in the treatment of angina, glyceryl trinitrate is used in form of a sublingual spray (nitro spray) or as soft capsules to be crunched.
Short-acting nitrates are used to abort angina attacks that have occurred, while longer-acting nitrates are used in the prophylactic management of the condition. Agents include glyceryl trinitrate (GTN) , pentaerythritol tetranitrate , isosorbide dinitrate and isosorbide mononitrate .
Most individuals with variant angina have a favorable prognosis provided they are maintained on calcium channel blockers and/or long-acting nitrates; five-year survival rates in this group are estimated as over 90%. [4] [19] The Japanese Coronary Spasm Association established a clinical risk scoring system to predict outcomes for variant angina.
Isosorbide dinitrate is in the nitrate family of medications and works by dilating blood vessels. [1] Isosorbide dinitrate was first written about in 1939. [3] It is on the World Health Organization's List of Essential Medicines. [4] Isosorbide dinitrate is available as a generic medication. [1] [5] A long-acting form exists. [1]
That said, if you use nitrates for angina (chest pain) or alpha-blockers and certain other medications to treat hypertension (high blood pressure), the reduction in blood pressure caused by ED ...
Angina, also known as angina pectoris, is chest pain or pressure, usually caused by insufficient blood flow to the heart muscle (myocardium). [2] It is most commonly a symptom of coronary artery disease. [2] Angina is typically the result of partial obstruction or spasm of the arteries that supply blood to the heart muscle. [3]
The metabolism of organic nitrates to nitric oxide is dependent on the presence of sulfhydryl groups in the muscle. The combination of oral N-acetylcysteine and a single dose of sustained-release isosorbide mononitrate 60 mg significantly prolonged the total exercise time in patients with angina pectoris and angiographically proven significant ...