Aspirin 300mg - 32 Tablets

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Laura Henderson - Medical Content Writer
Laura Henderson
Medical Content Writer
James O'Loan - CEO & Superintendent Pharmacist
James O'Loan
CEO & Superintendent Pharmacist

What are Aspirin Tablets (Brand May Vary)?

Aspirin tablets are a treatment for pain, swelling, and a high temperature. These 300mg tablets, also known as high dose aspirin, work as pain relief and are can help to soothe a wide range of conditions. If you’re looking for a simple and reliable way to ease your aches and pains, you can’t go far wrong with aspirin tablets.


How to take 300mg aspirin tablets

Take 1 - 3 aspirin tablets every four hours with a sip of water or another cool drink. Take this dose up to four times a day, leaving at least 4 hours between each dose. Do not take more than 12 tablets within 24-hours. If you’re still experiencing your pain or other symptoms after 3 days, you should speak to your doctor.


How does aspirin work to relieve pain?

Aspirin is a type of pain relief medication that can also help to relieve swelling and bring down a high temperature. It’s part of a group of medications called Non-Steroidal Anti-Inflammatory Drugs, or NSAIDs, which means it works in the same way as ibuprofen, naproxen, and other similar medications. Aspirin blocks hormones called prostaglandins, which are responsible for pain and swelling, keeping them from sending pain signals to your brain. Reducing this combination of symptoms makes aspirin ideal for treating injuries, headaches, and cold and flu symptoms, to name but a few.


What can I use these tablets for?

Aspirin can be used to ease the symptoms of a wide range of issues, specifically pain, swelling, and a fever. Some of the most common reasons that people take this product include:

  • Headaches
  • Migraines
  • Period pain
  • Toothache
  • Nerve pain (neuralgia)
  • Sore throat
  • Sprains, strains, and other injuries
  • Joint pain or stiffness
  • Sciatica
  • Lumbago
  • Muscular pain or aching
  • Fibrositis


Can I use aspirin 300mg to help prevent heart attacks or strokes?

Many people take aspirin to help prevent heart attacks or strokes, especially if they are at high risk of one. However, 300mg aspirin tablets are not the dose you need for this purpose, in fact, this dose is much too high to take every day as a preventative measure. If your healthcare team have told you that you need to take low-dose aspirin or baby aspirin for your heart health, you’ll need one 75mg tablet a day. You may be given a prescription for this type of aspirin, but you can also purchase it from us — and that might work out cheaper!


Can I take these tablets if I’m pregnant or breastfeeding?

If you’re pregnant or breastfeeding you should speak to your doctor or pharmacist before taking this product. You should not take aspirin during the last 3 months of your pregnancy (your third trimester) or when you’re breastfeeding. You may be able to take these tablets during the first stages of your pregnancy, but only if it’s recommended to you by a medical professional. As a general rule of thumb, you should not take any unnecessary medications during pregnancy or while breastfeeding, and your healthcare team can help you to find medications or alternative treatments that are right for you and your baby.


Can I take this pain relief along with my usual medication?

If you’re taking any other medication you should speak to your doctor or pharmacist before taking aspirin tablets. This especially applies if you are already taking:

  • Metoclopramide, which is used for sickness and digestive disorders
  • Blood thinners, also known as anticoagulants, e.g. warfarin, heparin, nicoumalone
  • Corticosteroids, which are used for arthritis, asthma, and inflammation, e.g. hydrocortisone
  • NSAIDs, also known as Non-Steroidal Anti-Inflammatory Drugs, e.g. ibuprofen
  • Medications for high blood pressure, e.g. diuretics or water tablets, Angio-II receptor antagonists, ACE inhibitors
  • Epilepsy medications, e.g. phenytoin, sodium valproate
  • Methotrexate, which is used for psoriasis, arthritis, and tumours
  • Antacids, which are used for indigestion
  • Gout medications, e.g. probenecid, sulphinpyrazone
  • Antidepressants, e.g. citalopram


When should these tablets not be used?

Aspirin 300mg tablets are not suitable for use in children under the age of 16 unless specifically advised to do so by a doctor. Do not take these tablets if you are allergic to aspirin, other NSAIDs, or any of the other listed ingredients. Do not take these tablets if you have:

  • A stomach ulcer or have had one in the past
  • Haemophilia or any other bleeding condition
  • Gout
  • Speak to your doctor or pharmacist before taking this product if you have:
  • An intolerance to some sugars, as these tablets contain lactose
  • Asthma or have ever had it
  • Dehydration
  • Glucose-6-phosphate dehydrogenase deficiency


Does aspirin have side effects?

Like all medications, aspirin can have side effects, although not everyone will experience them. If you experience any of the following serious side effects, stop use and seek immediate medical attention:

  • You vomit blood or dark particles which look like coffee grounds
  • Blood in your poo or black, tarry poo
  • Stomach problems, e.g. pain, indigestion, heartburn
  • Serious allergic reactions, e.g. swelling of the face, lips, mouth, tongue, or throat, skin rash, worsening asthma, wheezing, difficulty breathing or swallowing
  • Bleeding on the brain, causing a severe headache or stroke

Other side effects you may experience include:

  • Feeling sick, being sick, changes to your stomach lining causing swelling or ulcers
  • Bleeding for longer when you cut yourself, bleeding under the skin which may look like bruises
  • Nose bleeds — if these last for a long time or are severe you should speak to a doctor right away
  • Hearing problems, ringing in the ears, dizziness (vertigo), confusion

If you experience these or any other side effects while using this product, speak to your doctor or pharmacist as soon as possible. For more information about reporting the side effects of medication, please see the MHRA’s Yellow Card Scheme.


How to store this product

Store in a cool, dry place which is below 25 degrees C. Do not use this product if the expiry date printed on the original packaging has passed. Keep out of sight and reach of children.


Important Information

This product is a medicine; make sure to speak to your doctor or Chemist4U pharmacist before taking this product if you have an underlying medical problem or are taking any other medicine or complementary therapy. If your symptoms get worse or continue after taking this product, contact us or your doctor. For medical services in your area, please refer to

If you are pregnant, trying to become pregnant, or breastfeeding, speak to your doctor or our pharmacist before taking this product. If you suffer from any allergies, ask your doctor or our pharmacist if this medicine is right for you.

Store all medicines out of sight and reach of children.

Please read the included leaflet carefully before using this product.

Please contact your GP if appropriate regarding this product.


Helpful Advice on Medication Restrictions & Addiction

For further information on our medication restrictions policy, please click here.

If you are concerned about addiction to 'over the counter' medication, we urge you to visit the below links for professional help and advice:

Aspirin 300mg - 32 Tablets Reviews

By Gwyneth Shepherd,
May 14, 2024
Just the job
By Roger Gregory,
September 20, 2022
Received exactly what I ordered, very efficient.
By Mrgoosepoo,
August 30, 2022
By June,
November 30, 2021
Great product. Not so easy to get in the shops these days but a useful addition to the medicine cabinet.
By Pam G,
July 20, 2021
aspirin in larger qty packs, perfect, just what I wanted, without the trip to the shops!

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