| How
should Nitroglycerin capsule be used?
Nitroglycerin capsule comes as a sublingual tablet, buccal tablet,
extended-release (long-acting) capsule, or spray to be used orally.
The buccal extended-release tablets and the extended-release tablets
and capsules are usually taken three to six times a day. Do not
crush, chew, or divide the extended-release tablets or capsules.
The sublingual tablet and spray are used as needed to relieve chest
pain that has already started or to prevent pain before activities
known to provoke attacks (e.g., climbing stairs, sexual activity,
heavy exercise, or cold weather). The buccal extended-release tablets
also may be used during an attack and just before situations known
to provoke attacks. Follow the directions on your label
carefully, and ask your doctor or pharmacist to explain any part
you do not understand. Take nitroglycerin exactly as directed. Do
not take more or less of it or take it more often than prescribed
by your doctor.
Nitroglycerin
capsule controls chest pain but does not cure it. Continue to use
nitroglycerin even if you feel well. Do not stop taking Nitroglycerin
capsule without talking to your doctor. Stopping the drug abruptly
may cause chest pain.
Nitroglycerin
capsule can lose its effectiveness when used for a long time. This
effect is called tolerance. If your angina attacks happen more often,
last longer, or are more severe, call your doctor.
If
you are using the buccal extended-release tablet, place the tablet
between your cheek and gum and allow it to dissolve. Do not chew
or swallow it. If you feel dizzy, sit down after placing the tablet
in your mouth. Try not to swallow saliva until the tablet dissolves.
Buccal extended-release tablets start to work within 2-3 minutes.
To make the tablet dissolve faster, touch it with your tongue before
placing it in your mouth or drink a hot liquid. If an attack occurs
while you have a buccal extended-release tablet in place, place
a second tablet on the opposite side of your mouth. If chest pain
persists, use sublingual tablets, call for emergency assistance,
or go to a hospital emergency department immediately.
If
you are taking Nitroglycerin capsule sublingual tablets or spray
for acute chest pain, you should carry the tablets and spray with
you at all times. Sit down when an acute attack occurs. The drug
starts to work within 2 minutes and goes on working for up to 30
minutes. If you are taking nitroglycerin tablets and your chest
pain is not relieved within 5 minutes, take another dose. If you
are using nitroglycerin spray and your chest pain is not relieved
in 3-5 minutes, repeat the process. Call for emergency assistance
or go to a hospital emergency department if pain persists after
you have taken three tablets (at 5-minute intervals) or have used
three sprays (at 3-5 minute intervals) and 15 minutes have passed.
Nitroglycerin
capsule : Full Prescribing Information
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What
special precautions should I follow?
Before
taking Nitroglycerin capsule, tell
your doctor and pharmacist if you are allergic to Nitroglycerin
capsule, isosorbide (Imdur, Isordil, Sorbitrate), or any other drugs.
tell your doctor and pharmacist what
medications you are taking, especially aspirin; beta blockers such
as atenolol (Tenormin), carteolol (Cartrol), labetalol (Normodyne,
Trandate), metoprolol (Lopressor), nadolol (Corgard), propranolol
(Inderal), sotalol (Betapace), and timolol (Blocadren); calcium
channel blockers such as amlodipine (Norvasc), diltiazem (Cardizem),
felodipine (Plendil), isradipine (DynaCirc), nifedipine (Procardia),
and verapamil (Calan, Isoptin); dihydroergotamine (D.H.E. 45); sildenafil
(Viagra); and vitamins.
tell your doctor if you have low red blood cell counts (anemia),
glaucoma, or recent head trauma.
tell your doctor if you are pregnant, plan to become pregnant, or
are breast-feeding. If you become pregnant while taking nitroglycerin,
call your doctor.
if you are having surgery, including dental surgery, tell the doctor
or dentist that you are taking Nitroglycerin capsule.
you should know that Nitroglycerin capsule may make you drowsy or
dizzy. Do not drive a car or operate machinery until you know how
it affects you.
ask your doctor about the safe use of alcoholic beverages while
you are taking nitroglycerin. Alcohol can make the side effects
from Nitroglycerin capsule worse.
What
should I do if I forget a dose?
Apply the missed dose as soon as you remember it. However, if it is
almost time for the next dose, skip the missed dose and continue your
regular dosing schedule. Do not apply a double dose to make up for
a missed one.
What side effects can Nitroglycerin
capsule cause?
Side effects from Nitroglycerin capsule are common. Tell your doctor
if any of these symptoms are severe or do not go away:
headache
rash
dizziness
upset stomach
flushing (feeling of warmth)
If you experience any of the following symptoms, call your doctor
immediately:
blurred
vision
dry mouth
chest pain
fainting
What
storage conditions are needed for Nitroglycerin capsule?
Keep Nitroglycerin capsule in the container it came in, tightly
closed, and out of reach of children. Store it at room temperature
and away from excess heat and moisture (not in the bathroom). Avoid
puncturing the spray container and keep it away from excess heat.
Do not open a container of sublingual Nitroglycerin capsule until
you need a dose. Do not use tablets that are more than 12 months
old. Throw away any medication that is outdated or no longer needed.
Talk to your pharmacist about the proper disposal of your medication.
Nitroglycerin
capsule : Full Prescribing Information
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