Nitroglycerin extended-release capsules are used to prevent chest pain (angina) in people with a certain heart condition (coronary artery disease). This medication belongs to a class of drugs known as nitrates. Angina occurs when the heart muscle is not getting enough blood. This drug works by relaxing and widening blood vessels so blood can flow more easily to the heart.
This medication will not relieve chest pain once it occurs. It is also not intended to be taken just before physical activities (such as exercise sexual activity) to prevent chest pain. Other medications may be needed in these situations. Consult your doctor for more details.
Headache dizziness lightheadedness nausea and flushing may occur as your body adjusts to this medication. If any of these effects persist or worsen tell your doctor or pharmacist promptly.
Headache is often a sign that this medication is work