Glyceryl Trinitrate tablets
500micrograms and 600micrograms
Read all of this leaflet carefully before you start taking this medicine.
- Keep this leaflet. You may need to read it again.
- If you have any further questions, ask your doctor or pharmacist.
- This medicine has been prescribed for you. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours.
Index
1 What Glyceryl Trinitrate tablets are and what they are used for
2 Before you take
3 How to take
4 Possible side effects
5 How to store
6 Further information
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 pectoris
- stop spasms in the blood vessels of the heart.
Before you take
Do not take Glyceryl Trinitrate tablets and tell your doctor 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).
- have very low blood pressure or low blood volume.
- have any of the following heart conditions: narrowing of heart valves, an enlarged heart, inflammation of the heart, build up of fluid around the heart or heart failure.
- are taking sildenafil (Viagra) or similar medicines (such as tadalafil or vardenafil) used for the treatment of erection problems.
Check with 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).
- have abnormally low levels of oxygen in the blood (hypoxaemia).
Taking other medicines
Please tell your doctor or pharmacist if you are taking or have recently taken 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- 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 alkaloids)
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.
Taking 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.
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 alcohol.
Sugar intolerance
If you have been told you have an intolerance to some sugars, contact your doctor before taking this medicine, as it contains lactose.
How to take
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.
Doses:
Adult: 1 or 2 tablets should be placed under the tongue and allowed to dissolve slowly; this dose should be repeated if symptoms are not relieved. If pain persists after a total of 3 doses in 15 minutes you should seek medical advice immediately.
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 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.
Possible side effects
Like all medicines, Glyceryl Trinitrate tablets can cause side effects, although not everybody gets them. Please tell your doctor or pharmacist if you notice any of the following effects or any effects not listed.
- Nervous System disorders: throbbing headache, spinning sensation and dizziness
- Heart/ Blood vessel disorders: rapid or slowed heart beat, fall in blood pressure when standing up, fainting
- Skin and soft tissue disorders: localised burning sensation, itchy, flaky or red skin and facial flushing
- Stomach and intestines: feeling or being sick
- Breathing: shortness of breath
- Eyes: pain around the eye, changes in vision.
- Other: weakness.
How to store
Keep out of the reach and sight of children.
The active medicine quickly evaporates from the tablet and you should observe the following conditions to ensure continued potency of the tablets.
- 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 shown.
- 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 environment.
Further information
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 tablets.
Pack size is 100.
Marketing Authorisation Holder and Manufacturer
This leaflet was last revised in February 2010.
50402171
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