Nitroglycerin is a medication that is used to prevent and treat chest pain (angina) caused by coronary artery disease. It belongs to a group of medications called nitrates, which work by relaxing the blood vessels and increasing the supply of blood and oxygen to the heart while reducing its workload. Nitroglycerin is available in different forms, including extended-release capsules, oral spray, sublingual powder, and sublingual tablets. The sublingual tablets are placed under the tongue and work quickly to stop an angina attack that is already occurring. Nitroglycerin may also be used regularly on a long-term basis, or just before exercise or a stressful event, to prevent angina attacks from occurring.
Nitrates are vasodilators, which means they help widen (dilate) blood vessels, making it easier for blood to flow through and let more oxygen-rich blood reach the heart. Better blood flow means the heart doesnt have to work as hard. Nitrates also relax the veins so less blood is returned to the heart, which can reduce the workload on the heart.
It is important to follow the directions on the prescription label carefully and ask the doctor or pharmacist to explain any part that is not understood. Nitroglycerin may not work as well after it has been used for some time or if many doses have been taken. It is recommended to take the fewest tablets needed to relieve the pain of angina attacks. If angina attacks happen more often, last longer, or become more severe at any time during the treatment, it is important to call the doctor.
In summary, nitroglycerin is a medication that is used to prevent and treat chest pain caused by coronary artery disease. It works by relaxing the blood vessels and increasing the supply of blood and oxygen to the heart while reducing its workload. Nitroglycerin is available in different forms, including sublingual tablets, and it is important to follow the directions on the prescription label carefully.
