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Glyceryl Trinitrate tablets
500micrograms and 600micrograms
Read all of this leaflet carefully before you
start taking this medicine because it contains
important information for you.
Always take this medicine exactly as described
in this leaflet or as your doctor or pharmacist has
told you.
• Keep this leaflet. You may need to read it again.
• Ask your pharmacist if you need more
information or advise.
• If you get any side effects, talk to your doctor
or pharmacist. This includes any possible side
effects not listed in this leaflet.

1 What Glyceryl Trinitrate tablets
are and what they are used for
2 What you need to know before you
3 How to take Glyceryl Trinitrate
4 Possible side effects
5 How to store Glyceryl Trinitrate
6 Contents of the pack and other

1 What Glyceryl Trinitrate tablets are
and what they are used for

Glyceryl Trinitrate belongs to a group of medicines
called nitrate vasodilators. These medicines work
by relaxing the blood vessels of the heart. This
reduces the strain on the heart by making it easier
to pump blood.
Glyceryl Trinitrate tablets BP may be used to:
• prevent or stop chest pain caused by angina
• stop spasms in the blood vessels of the heart.

2 What you need to know before you

Do not take Glyceryl Trinitrate tablets if you:

• are allergic (hypersensitive) to glyceryl trinitrate,
nitrates or any of the ingredients in the tablet.
An allergic reaction may include a rash, itching,
difficulty breathing or swelling of the face, lips,
throat or tongue (see section 6).
• have anaemia.
• have raised pressure in your head including
that caused by an accident to your head or
bleeding on the brain, causing painful eyes,
changes in vision and a bad headache especially
behind the eyes.
• have increased pressure in the eye (glaucoma).
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AAAE3979 50697029

• are taking sildenafil (Viagra) or similar medicines
(such as tadalafil or vardenafil) used for the
treatment of erection problems.

Warnings and precautions

Talk to your doctor or pharmacist before
taking Glyceryl Trinitrate tablets if you have:

severe liver or kidney problems
an under active thyroid gland
had a recent heart attack
low body temperature (hypothermia)
poor nutrition due to an unbalanced diet or
digestion problems (malnutrition)
abnormally low levels of oxygen in the blood
very low blood pressure or low blood volume
any of the following heart conditions: narrowing
of heart valves, inflammation of the heart, build
up of fluid around the heart or heart failure
disease of the blood vessels supplying the brain
(cerebrovascular disease).

Other medicines and Glyceryl Trinitrate

Tell your doctor or pharmacist if you are taking,
have recently taken or might take any other
medicines, including medicines obtained without a
prescription. Especially:
• sildenafil (Viagra), tadalafil (Cialis) or vardenafil
(Levitra) used to treat erection problems
• heparin used to thin the blood
• n-acetylcysteine used in paracetamol overdose
• long acting nitrates (isosorbide dinitrate,
isosorbide mononitrate)
• medicines used to treat high blood pressure
• medicines that can cause dry mouth
(amitriptyline, disopyramide, atropine and
propantheline, tricyclic antidepressants)
• apomorphine used to treat Parkinson’s disease.
• medicines used to treat migraine (ergot

Glyceryl Trinitrate tablets with alcohol

You are advised not to drink alcohol with Glyceryl
Trinitrate tablets, as some of the effects of this
medicine are increased.

Pregnancy and breast feeding

If you are pregnant, planning to become pregnant
or breast feeding, ask your doctor or pharmacist for
advice before taking this medicine.

Driving and using machines

As glyceryl trinitrate can cause dizziness you should
make sure you are not affected before driving
or operating machinery, especially if taken with

Glyceryl Trinitrate Tablets contain lactose

If you have been told you have an intolerance to
some sugars, contact your doctor before taking this
medicine, as it contains lactose.
Continued over page

3 How to take Glyceryl Trinitrate

Always take Glyceryl Trinitrate tablets exactly as
your doctor has told you. If you are not sure, check
with your doctor or pharmacist.
Do not swallow the tablets.
Adult: 1 tablet should be placed under the tongue
and allowed to dissolve slowly; this dose should
be repeated after 5 minutes if symptoms are not
relieved. If pain persists after a total of 3 doses
in 15 minutes you should seek medical advice
Your doctor will change the dose to suit your
condition. If you notice that your tablets are not
working as well at relieving pain as they have done,
contact your pharmacist or doctor. If you need
more tablets than before to help, tell the doctor
who will advise what to do.

If you take more Glyceryl Trinitrate Tablets
than you should
If you (or someone else) swallow a lot of
tablets at the same time, or you think a child
may have swallowed any contact your nearest
hospital casualty department or tell your doctor
immediately. Symptoms of an overdose include
being sick, restlessness, low blood pressure,
fainting, blueness of the skin, methaemoglobin in
the blood, breathing difficulties, lack of oxygen in
tissues, slow heart beat and mental illness.

4 Possible side effects

Like all medicines, Glyceryl Trinitrate tablets can
cause side effects, although not everybody gets
If any of the following serious side effects
happen, stop taking the medicine and tell
your Doctor immediately or go to your nearest
Worsening of angina symptoms, chest pains,
difficulty breathing, blue colouring of the lips,
fingers or toes, rapid or slowed heart beat,
blindness in one eye, weakness in one arm or leg, or
weakness in one entire side of the body, difficulty
speaking, slurred speech, loss of coordination, loss
of consciousness.
The following side effects were reported very
common (may affect more than 1 in 10 people)
• throbbing headache
The following side effects were reported common
(may affect up to 1 in 10 people)
• spinning sensation, fall in blood pressure when
seated or standing up, dizziness, drowsiness
• weakness
The following side effects were reported
uncommon (may affect up to 1 in 100 people)
• fainting
• facial flushing
• feeling or being sick
• localised burning sensation
The following side effects were reported rare (may
affect up to 1 in 1,000 people)
• allergic skin reactions

The following side effects were reported very rare
(may affect up to 1 in 10,000 people)
• restlessness
• heartburn
• bad breath, itchy, flaky or red skin, skin rash
The following side effects were reported not known
(frequency cannot be estimated from the available
• pain around the eye, changes in vision
Please tell your doctor or pharmacist if you notice
any of the following effects or any effects not listed.

5 How to store Glyceryl Trinitrate

Keep this medicine out of the sight and reach of
The active medicine quickly evaporates from
the tablet and you should observe the following
conditions to ensure continued potency of the
• If you do not use the tablets within 8 weeks of
first opening the bottle, obtain a fresh supply
and return the old tablets to your pharmacist.
(Fresh tablets should produce a slight burning
sensation when placed under the tongue; if this
does not occur, obtain a fresh supply). In any
event do not use the tablets after the expiry date
• Your Glyceryl Trinitrate tablets will be in a glass
airtight container with a foil-lined cap. Keep
them in this.
• After each use close the bottle cap tightly.
• Do not put cotton wool, other medicines, or
anything else in the bottle with the tablets.
• Store the tablets below 25oC in a dry place,
protected from light. If you need to carry them
with you do not carry them close to your body,
rather in a purse, wallet or handbag.
Do not use Glyceryl Trinitrate tablets after the
expiry date stated on the bottle. The expiry date
refers to the last day of that month.
Medicines should not be disposed of via
wastewater or household waste. Ask your
pharmacist how to dispose of medicines no longer
required. These measures will help to protect the

6 Contents of the pack and other


What Glyceryl Trinitrate tablets contain

• The active substance (the ingredient that makes
the tablets work) is glyceryl trinitrate BP. Each
tablet contains either 0.525mg or 0.630mg of the
active ingredient Glyceryl trinitrate 2% adsorbate
which is equivalent to 500micrograms and
600micrograms of Glyceryl trinitate.
• The other ingredients are lactose, stearic acid,
magnesium stearate, colloidal silicon dioxide,
mannitol and acacia.

What Glyceryl Trinitrate tablets look like
and contents of the pack
Glyceryl Trinitrate are white, circular, uncoated
Pack size is 100.
Marketing Authorisation Holder and Manufacturer
Actavis, Barnstaple, EX32 8NS, UK
This leaflet was last revised in
December 2012.

AAAE3979 50697029

Actavis, Barnstaple, EX32 8NS, UK

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Source: Medicines and Healthcare Products Regulatory Agency

Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.