Generic Name: nitroglycerin (topical) (NYE troe GLIS er in)Brand Names: Nitro-Bid, Nitrol Appli-Kit
Nitroglycerin is in a group of drugs called nitrates. Nitroglycerin dilates (widens) blood vessels, making it easier for blood to flow through them and easier for the heart to pump.
Nitroglycerin topical (for the skin) is used to prevent attacks of chest pain (angina).
Nitroglycerin topical may also be used for other purposes not listed in this medication guide.What is the most important information I should know about Nitro-Bid (nitroglycerin (topical))?You should not use this medication if you are allergic to nitroglycerin, isosorbide mononitrate (Imdur), or isosorbide dinitrate (BiDil, Isordil).
Before using nitroglycerin topical, tell your doctor if you have congestive heart failure, low blood pressure, glaucoma, anemia, or a history of heart attack, stroke, or head injury.Do not use this medication to treat an angina attack that has already begun. It will not work fast enough.
Nitroglycerin topical can cause severe headaches, especially when you first start using it. Do not stop using nitroglycerin, and ask your doctor before using any headache pain medication.Nitroglycerin topical can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. Avoid drinking alcohol. It can increase some of the side effects of nitroglycerin topical. Call your doctor at once if you have a serious side effect such as worsening chest pain, pain spreading to the arm or shoulder, nausea, vomiting, sweating, blurred vision and dry mouth, or fainting.What should I discuss with my healthcare provider before using Nitro-Bid (nitroglycerin (topical))?You should not use this medication if you are allergic to nitroglycerin, isosorbide mononitrate (Imdur), or isosorbide dinitrate (BiDil, Isordil).
Before using nitroglycerin topical, tell your doctor if you are allergic to any drugs, or if you have:
congestive heart failure;
a history of heart attack, stroke, or head injury;
low blood pressure;
anemia (lack of red blood cells).
If you have any of these conditions, you may need a dose adjustment or special tests to safely use nitroglycerin topical.FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. It is not known whether nitroglycerin topical passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
Nitroglycerin topical can cause severe headaches, especially when you first start using it. These headaches may gradually become less severe as you continue to use nitroglycerin topical. Do not stop using the medication. Ask your doctor before using any headache pain medication.If you need to have any type of surgery or dental work, tell the surgeon or dentist ahead of time that you are using nitroglycerin topical.
Use this medication exactly as it was prescribed for you. Do not use the medication in larger amounts, or use it for longer than recommended by your doctor. Follow the directions on your prescription label.Do not use nitroglycerin topical to treat an angina attack that has already begun. It will not work fast enough. Your doctor may prescribe an oral form of nitroglycerin (tablet, capsule, spray) to treat an angina attack. Talk with your doctor if any of your medications do not seem to work as well in treating or preventing angina attacks.
Nitroglycerin ointment is usually applied 3 or 4 times daily. You may also need to wash off the ointment at a certain time each day. Follow your doctor's instructions carefully.Wash your hands after applying nitroglycerin ointment. Do not stop using this medication without your doctor's advice, even if you feel better. You may have increased angina attacks if you stop using the medication suddenly. Store this medication at room temperature, away from moisture and heat.
Apply the medicine as soon as you remember. If your next dose is less than 2 hours away, wait until then to apply the ointment and skip the missed dose.
Do not use extra ointment to make up a missed dose.
Overdose symptoms may include a severe throbbing headache, confusion, fever, fast or pounding heartbeats, dizziness, vision problems, nausea, vomiting, bloody diarrhea, trouble breathing, cold or clammy skin, feeling light-headed, fainting, seizure (convulsions), or blue-colored skin, lips, or nails.
Avoid using nitroglycerin topical on irritated or broken skin.Nitroglycerin topical can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.Avoid drinking alcohol. It can increase some of the side effects of nitroglycerin topical.
worsening chest pain, slow heart rate;
feeling like you might pass out;
chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
fast or pounding heartbeats; or
blurred vision and dry mouth.
Less serious side effects may include:
mild skin rash or itching;
warmth, redness, or tingly feeling under your skin;
nausea, vomiting, upset stomach; or
feeling nervous, weak, or dizzy.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
Tell your doctor about all other medications you use, especially:
blood pressure medication or diuretics (water pills);
cold or allergy medicines, diet pills, or over-the-counter pain medicine such as ibuprofen (Advil, Motrin) or naproxen (Aleve);
an erectile dysfunction medication such as sildenafil (Viagra), tadalafil (Cialis), or vardenafil (Levitra);
migraine headache medication such as ergotamine (Ergomar, Cafergot), or dihydroergotamine (D.H.E. 45, Migranal Nasal Spray);
a beta-blocker such as atenolol (Tenormin), carvedilol (Coreg), metoprolol (Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal), and others; or
a calcium channel blocker such as amlodipine (Norvasc), diltiazem (Tiazac, Cartia, Cardizem), felodipine (Plendil), nicardipine (Cardene), nifedipine (Procardia, Adalat), nimodipine (Nimotop), nisoldipine (Sular), or verapamil (Calan, Covera, Isoptin, Verelan).
This list is not complete and there may be other drugs that can interact with nitroglycerin topical. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.