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The product code(s) for this leaflet is: PL 16853/0063.
Aspirin 300
Aspirin 300mg
Gastro-resistant Tablets (acetylsalicylic acid)
1. What Aspirin 300mg is and what it is taken for
2. What you need to know before you take Aspirin 300mg
3. How to take Aspirin 300mg
4. Possible side effects
5. How to store Aspirin 300mg
6. Contents of the pack and other information
Aspirin 300mg contains aspirin. Aspirin is used:
If you take aspirin in high doses or over a long period of time, it can irritate your stomach lining. To prevent stomach irritation, these tablets have a special coating (called enteric) so that the aspirin is not released until it has passed through the stomach.
Aspirin is released slowly from these tablets, so Aspirin 300mg is not suitable for the short-term relief of pain, such as headaches or toothache.
Before you take Aspirin 300mg tell your doctor if you:
When given to children aspirin may cause Reye’s syndrome. Reye’s syndrome is a very rare disease, which can be fatal. For this reason, aspirin should not be given to children aged under 16 years, unless on the advice of a doctor.
If any of the above applies to you, or if you are not sure, speak to your doctor or pharmacist before you take Aspirin 300mg.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. The effect of treatment may be influenced if aspirin is taken at the same time as some other medicines for:
If you consume excessive amounts of alcohol whilst taking Aspirin 300mg, you may increase the risk of causing bleeding in your stomach or intestines.
Tell your doctor that you are taking Aspirin 300mg if you are to have a urine test, as it can sometimes interfere with the results.
Before using aspirin, you should inform a healthcare professional about the medicines you are taking. If you are using aspirin regularly you should seek advice before taking any other medicine (including other medicines you may have bought).
Pregnant women should not take aspirin during pregnancy unless advised by their doctor. You must not take Aspirin 300mg if you are in the last 3 months of pregnancy. Regular or high dose aspirin therapy during late pregnancy can cause serious complications in the mother or baby.
Do not take Aspirin 300mg if you are breast-feeding because some of the aspirin may be in your breast milk and could harm your baby.
The product belongs to a group of medicines which may impair the fertility in women. This effect is reversible on stopping the medicine.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
This medicine contains 0.334 mg benzyl alcohol in each tablet.
Ask your doctor or pharmacist for advice if you have a liver or kidney disease. This is because large amounts of benzyl alcohol can build-up in your body and may cause side effects (called “metabolic acidosis”).
Benzyl alcohol may cause allergic reactions.
Always take Aspirin 300mg exactly as your doctor has told you to. Check with your doctor or pharmacist if you are not sure.
The usual dose is different in the following circumstances:
Swallow the tablets whole with water. Do not cut, crush or chew them as this will damage the special coating. If the coating is damaged the tablets are more likely to irritate your stomach.
If you may be taking this medicine for a long time, you should talk to your doctor about it.
If you have taken too many tablets, you should go to your nearest accident and emergency department or contact your doctor immediately. Take any leftover medicines or the empty packet to the doctor to show what you have taken.
The following effects may occur; nausea, vomiting, loss of appetite, dizziness, dehydration, ringing in ears or deafness, loss of balance, sweating, headache, tiredness, confusion, warm hands/feet with a fast heart rate, unusually fast or deep breathing.
Less common effects include; vomiting blood, high fever, bleeding or bruising, increased hunger, increased thirst, trembling/shakiness, muscle weakness, twitching, abnormal heart rhythm, difficulty concentrating, swollen ankles/hands/feet, blood in urine/reduced production of urine, severe breathlessness, seizures, coma, cessation of breathing or heartbeat.
Do not worry. If you miss a dose, wait until it is time for your next dose, then go on as normal. DO NOT take a double dose.
If you have any further questions on the use of this product, ask your doctor or pharmacist.
Like all medicines, Aspirin 300mg can cause side effects, although not everyone gets them.
Aspirin may cause allergic reactions and you must STOP taking this medicine and tell your doctor immediately if you experience any of the following:
When taking Aspirin 300mg, you may suffer some more serious side effects;
STOP taking this medicine and tell your doctor immediately if you experience any of the following:
Aspirin may sometimes cause asthma or bronchospasm (narrowing of the airways that causes wheezing or difficulty breathing).
Aspirin may cause bleeding, and you must tell your doctor if you experience any unusual bleeding.
Other side effects of aspirin include:
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the internet at www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the bottle and carton. The expiry date refers to the last day of that month.
Do not store above 25°C. Keep the bottle tightly closed in order to protect from moisture. Do not take Aspirin 300mg if you notice the appearance has changed in any way.
If your doctor decides to stop your treatment, return any unused medicine to the pharmacist. Only keep it if your doctor tells you to.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist on how to dispose of medicines no longer required. These measures will help protect the environment.
The active ingredient in this medicine is aspirin (acetylsalicylic acid). Each tablet of Aspirin 300mg contains 300mg milligrams (mg) of aspirin.
The other ingredients are maize starch, hypromellose, talc, methacrylic acid- ethyl acrylate (1:1) copolymer dispersion 30 percent, polyethylene glycol 3350, propylene glycol, benzyl alcohol, emulsion silicone. Printing ink containing shellac, iron oxide (E172), isopropyl alcohol, n-butyl alcohol, propylene glycol, ammonium hydroxide (E527) and simeticone.
Aspirin 300mg is a white tablet, with 300mg on it in red. Aspirin 300mg comes in bottles of 100 tablets.
The product licence holder is:
Aspirin 300mg is manufactured by
The information in this leaflet applies only to Aspirin 300mg. If you have any questions or you are not sure about anything, ask your doctor or a pharmacist.
This leaflet was last revised in August 2022
Alliance and associated devices are registered Trademarks of Alliance Pharmaceuticals Limited.
© Alliance Pharmaceuticals Limited 2022
Aspirin 300mg PIL UK 012