Using Nitroglycerin for Angina - Topic Overview
Are there side effects or interactions with other drugs that I should be aware of?
Normal, temporary side effects of
nitroglycerin include a warm or flushed feeling, headache, dizziness, or
lightheadedness. You may also feel a burning sensation under your
Do not take the erection-enhancing medicine sildenafil
(Viagra), tadalafil (Cialis), or vardenafil (Levitra) if you are taking
nitroglycerin. Combining nitroglycerin with any of these medicines can cause a
life-threatening drop in blood pressure. If you develop chest pain and have
taken one of these erection-enhancing medicines, be sure to tell your doctor so
that you are not given nitroglycerin or another nitrate medicine.
Do not take the
pulmonary hypertension medicine sildenafil (Revatio)
if you are taking nitroglycerin or another nitrate medicine.
How should I store nitroglycerin?
nitroglycerin pills in a dark-colored (such as brown), airtight, glass
container that you cannot see through. Keep the container tightly closed. Keep
nitroglycerin pills and liquid spray away from heat or moisture.
Can nitroglycerin get old and lose potency?
Nitroglycerin can get old. And when it is old, it may not work. If your
nitroglycerin supply is past its expiration date, get a new prescription as
soon as possible. Keep your nitroglycerin in the container it came in and
tightly closed. Do not open your sublingual nitroglycerin until you need a
dose. Replace your tablets every 3 to 6 months. A nitroglycerin spray may last
up to 2 years before it expires.
You may get a headache when you
use nitroglycerin. Or you may feel burning or tingling under your tongue with
nitroglycerin that is used under the tongue. But if you don't have a headache
or feel burning or tingling under your tongue, it does not mean the medicine is