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Nitroglycerin transling.

Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.



COMMON BRAND NAME(S): Nitrolingual


Nitroglycerin relaxes blood vessels allowing more blood to flow through. This reduces the workload on the heart and improves blood flow to the heart. Lingual nitroglycerin acts quickly to relieve chest pain (angina).

How To Use

At the first sign of chest pain, sit down and spray one or two metered doses on or under the tongue. Close mouth immediately after each dose. The drug is absorbed directly through the lining of the mouth. Spray should not be inhaled and swallowing should be avoided. Do not eat, drink or smoke while spray is in your mouth. Effects should begin within 1 to 3 minutes. If after 5 minutes, there is no relief of chest pain, use another metered dose. If there is no relief after 3 applications, call your doctor immediately or go to a hospital emergency room. Nitroglycerin spray may be used 5 to 10 minutes before engaging in activities that may cause an attack. Do not shake container. Carry this medication with you at all times.

Side Effects

Headache, dizziness, flushing, rapid heartbeat or restlessness may occur as your body adjusts to the medication. If they persist or become bothersome, inform your doctor. To prevent dizziness and lightheadedness when rising from a seated or lying position, get up slowly. Notify your doctor if you experience: blurred vision, dry mouth, skin rash, nausea. Headache is often a sign the medication is working. Treat headaches with an aspirin or non-aspirin pain reliever as recommended by your doctor. If the headaches continue or become severe, notify your doctor. In the unlikely event you have an allergic reaction to this drug, seek medical attention immediately. Symptoms of an allergic reaction include: rash, itching, swelling, dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.


Before using this medication tell your doctor your medical history especially of: heart problems, head injury or surgery, glaucoma, thyroid conditions, anemia, alcohol usage, drug allergies. Use caution engaging in activities that require alertness or in operating machinery if this medication makes you dizzy or drowsy. Alcoholic beverages may increase the risk of fainting or of experiencing dizziness. This medication should be used during pregnancy only if clearly needed. Discuss the risks and benefits with your doctor. It is not known if this drug is excreted into breast milk. Consult your doctor before breast-feeding.

Drug Interactions

Tell your doctor of all medications you may use including prescription and nonprescription drugs, especially of: high blood pressure drugs, certain migraine drugs (ergot alkaloids), sildenafil, high doses of aspirin. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include a persistent, throbbing headache; dizziness; confusion; weakness; sweating; changes in heart rate; changes in vision; flushing; nausea; and vomiting.


Some persons may develop a tolerance to the effects of this medication over time. Notify your doctor if the medication appears to be losing its effectiveness or if the chest pain continues while taking this drug.

Missed Dose

This medication is used only at the onset of an attack of chest pain or 10 to 15 minutes before engaging in an activity that may cause chest pain. This medication is not for routine use.


Store at room temperature away from heat and direct sunlight. Do not puncture container.

Medical Alert

Your condition can cause complications in a medical emergency. For enrollment information call MedicAlert at 1-800-854-1166 (USA), or 1-800-668-1507 (Canada).