Nitrates are effective in relieving coronary artery spasm and angina. What Nitroglycerin does Nitroglycerin is one of the nitrate family of cardiovascular drugs. Nitrates are potent vein and artery dilators, causing blood to pool in the veins and the arteries to open up, thus reducing the amount of blood returning to the heart. This has the effect of decreasing the work of the left ventricle and lowering the blood pressure. Nitrates may also increase the supply of oxygenated blood by causing the coronary arteries to open more fully, thus improving coronary blood flow.
Nitrates are effective in relieving coronary artery spasm and angina.
Instructions for use of Nitroglycerin Nitroglycerin is available as a pill you dissolve under your tongue, a tablet to dissolve in the cheek, a controlled-released tablet or capsule or as an ointment, spray or skin patch. Possible side effects include headaches, flushing and dizziness. People who are taking nitroglycerin should follow this advice. Unless you are wearing a nitroglycerin patch, remember to keep your medication with you at all times. Nitroglycerin cannot be stored for long periods of time without losing its effectiveness.