Nitroglycerin Sublingual Powder (NITROGLYCERIN POWDER PACKET - SUBLINGUAL)

This medicine is used for the following purposes:

  • angina
  • heart attack

Brand Name(s): Gonitro

Generic Name: Nitroglycerin

Instructions

Sit down before using this medicine.

Use 1 packet 5-10 minutes before activity to try to prevent chest pain.

Open the packet and pour all of the powder under the tongue. Close mouth right away and breathe normally through the nose. Let all of the powder dissolve before swallowing.

Do not rinse mouth or spit for 5 minutes after taking the dose.

Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Tell your doctor if symptoms do not get better or if they get worse.

Cautions

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

Do not use the medication any more than instructed.

This medicine may cause dizziness or fainting, especially after exercising or in hot weather. Be very careful when standing or sitting up quickly.

Your ability to stay alert or to react quickly may be impaired by this medicine. Do not drive or operate machinery until you know how this medicine will affect you.

If you drink more than a few alcoholic beverages each day, ask your doctor whether you should be on this medicine.

Avoid smoking while on this medicine. Smoking may increase your risk for stroke, heart attack, blood clots, high blood pressure, and other diseases of the heart and blood vessels.

It is unknown if this medicine passes into breast milk. Ask your doctor before breastfeeding.

During pregnancy, this medicine should be used only when clearly needed. Talk to your doctor about the risks and benefits.

Do not take this medicine with other medicines called PDE5 inhibitors (Viagra, Levitra, Cialis). Your doctor will let you know if it is safe for you to do so.

Always carry an ID card or wear a medical alert bracelet indicating your medical condition.

Do not share this medicine with anyone who has not been prescribed this medicine.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

  • dizziness
  • feeling of heat or flushing
  • headaches
  • low blood pressure
  • nausea

Call your doctor or get medical help right away if you notice any of these more serious side effects:

  • fainting
  • fast or irregular heart beats

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.

Please speak with your doctor, nurse, or pharmacist if you have any questions about this medicine.