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Alka-Seltzer Original Effervescent Tablets 20

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Alka Seltzer Original Tablets can be used to treat a variety of conditions including; migraines, period pains, toothache, sore throats, aches and pains and symptoms of cold and flu.

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Alka-Seltzer Original effervescent tablets are for fast and effective relief of general pain such as migraine, period pains, rheumatic and muscular pain, toothache, sore throat, nerve pain and the symptomatic relief of colds and flu. Alka-Seltzer Original effervescent tablets contain three active ingredients, aspirin, sodium hydrogencarbonate and citric acid. The aspirin is to relieve pain and inflammation. Sodium hydrogen carbonate and citric acid create antacids when dissolved in water which helps to neutralise stomach acid and relieve the symptoms of heartburn and indigestion. Alka-Seltzer Original effervescent tablets are most effective in relieving headaches accompanied by an upset stomach, usually after over-indulgence in food and drink, but can be used to relieve many other types of aches and pains.
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Each Effervescent Tablet Contains: Aspirin 324mg, Sodium Hydrogen Carbonate 1744mg, Citric Acid 965mg Sodium Content 477mg per Tablet Alka-Seltzer Dissolved In Water Because Sodium Acetylsalicylate, Sodium Citrate And Sodium Hydrogen Carbonate.
Alka-seltzer must always be dissolved in water before taking. Dosage: adults and children, aged 16 and over: 2 tablets every 4 hours, if necessary. Maximum dosage: do not take more than 8 tablets in 24 hours. The dosages should not be continued for more than three days without consulting your doctor. Do not give to children aged under 16 years, unless on the advice of a doctor. If symptoms persist consult your doctor. Do not exceed the stated dose.

Contains Aspirin. Aspirin may cause a severe allergic reaction which may include: hives, facial swelling, asthma (wheezing). Not recommended for children under 16 years except on medical advice. Always read instructions. If taking any other medications or prescribed drugs always check with your doctor before use.

Standard Delivery

Standard Mainland UK delivery is £3.95* 

We aim to deliver orders within 3-5 working days to the shipping address provided by you in your order if the shipping address is in the UK.  For orders being delivered outside mainland UK, this will be longer and we cannot give a guaranteed delivery time due to the differences between carriers. Delivery timescales are estimates only. If you do not receive your order within 14 days of us confirming your order has been sent you must notify us and we will investigate the non-delivery provided. Orders from outside the UK have varied delivery charges, depending on the particular country.  Please note that in some instances you may be required to answer product related questions from our Pharmacist as part of the checkout process.  Failiure to answer these will cause delays.  Please allow extra time for Pharmacy approved products.  Please note that Bank Holidays do not count as working days.

Delivery charges for orders outside the UK will vary. *Northern Ireland delivery charges different

Express UK Delivery

Express Mainland UK delivery is £6.95*, non mainland islands may vary

Please note that Express delivery is only available on orders placed before 1pm (GMT) Monday to Friday in the UK.  After 1pm we cannot guarantee express delivery, even if it has been selected.  Please note that this is not a guaranteed next day service, but is an expedited delivery option.  Products which need to be approved by a pharmacist are not suitable for express delivery.

*Northern Ireland delivery charges different

Free Delivery on orders over £50*

This applies to orders delivered to UK addresses only.  *Exclusions may apply.


We hope you will be happy with any items you’ve ordered from us, but if you’re not entirely satisfied, you’ll find details of our returns policy on the link below.

Delivery outside of the EU

Please note that certain medicines and medical devices sold on this website cannot be purchased if you live outside of the European Union.


Please visit our Delivery & Returns page for more information.