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This medicine is taken by people before their physical activities, including sexual intercourse and exercises, as its use helps them prevent angina if they have specific pre-existing heart conditions. Sometimes, Nitroglycerin is used to relieve angina only once it happens, and it belongs to a group of meds called nitrates. Chest pain is a condition that happens when heart muscles donít get enough blood, and this medication works by widening and relaxing blood vessels.

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Ask doctors for detailed instructions on how to take Nitroglycerin. Itís necessary to sit down before taking your next dose, which is based on your individual response and medical condition. When taking this drug to prevent angina before different physical activities, take one pill 5-10 minutes before them. When using it once this condition happens, take the right dosage as soon as you can. If chest pain doesnít improve or gets worse, call the hospital to get emergency medical help. Itís not allowed to take more than 3 doses at once.

Precautions and Contraindications

Before you start taking Nitroglycerin, inform doctors if you have any allergies to it or other drugs. This treatment shouldnít be started if you have specific health conditions, so tell doctors about your medical history, especially if you have recent head injuries, low blood pressure, anemia, severe dehydration and some others. The intake of Nitroglycerin can make patients feel dizzy, so itís not advisable to drive or perform other activities that require their full alertness. Users shouldnít consume alcoholic beverages, and they must inform doctors and dentists about the use of this medication. Older people can be more sensitive to its possible side effects, especially lightheadedness and dizziness that increase their risk of falling. During pregnancy and breastfeeding Nitroglycerin can be taken only when itís clearly needed.

Drug Interactions

There are certain medications that should be avoided when taking Nitroglycerin because of a high risk of having serious drug interactions. For example, donít combine it with ED meds, riociguat and pills that treat pulmonary hypertension. Tell doctors about any other meds that youíre taking before starting this treatment, especially when it comes to specific pills that treat migraines, including ergot alkaloids, rosiglitazone and ergotamine. Make a list of other prescription and over-the-counter drugs, herbal supplements, minerals and vitamins that you need to use. Besides, Nitroglycerin may potentially interfere with certain lab tests, so medical specialists need to know about its intake, because it may produce false results.

Side Effects

There are certain side effects that can be caused by this medicine, but most of them are rare and include lightheadedness, dizziness, headaches, facial flushing, nausea, tongue tingling or burning and some others. If any of these symptoms get worse, you need to call your doctor at once. If you have a headache, itís a sign that Nitroglycerin is working, and you can take pain killers to improve it. To avoid a possible risk of lightheadedness and dizziness, get up slowly from any lying or sitting position. Serious side effects are very rare when undergoing this treatment, but they all require emergency medical help. Patients may have such unwanted symptoms as fainting, allergic reactions, fast or irregular heartbeats, etc. Call your doctor if you think that you start developing any of these signs.

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