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  • Alka-Seltzer Extra Strength 20 Effervescent Tablets
Alka-Seltzer Extra Strength 20 Effervescent Tablets_30

Alka-Seltzer Extra Strength 20 Effervescent Tablets

Availability: In stock

£4.19 RRP £4.88
Warning Maximum Product Quantity of 36
in stock
Free Delivery
Over £30
Discreet Delivery
  • • Extra strength version of the original antacid and pain reliever, also contains caffeine
  • • Idea for when circumstances warrant something a little stronger to tackle pain and discomfort
  • • Provide symptomatic relief from upset stomach, indigestion, heartburn and headaches
  • • Can also relieve mild to moderate pain and discomfort such as body aches and more
  • • Active ingredients: Aspirin, Paracetamol, Caffeine etc.

Alka-Seltzer Extra Strength 20 Effervescent Tablets


What are Effervescent Tablets and when is it used?

Alka-Seltzer are tablets designed to relieve mild to moderate pain including rheumatic and muscular pain, sprains and strains, backache, nerve pain (neuralgia), migraine, headache, toothache, sore throat and period pain.

They can also be used to lower a high temperature and relieving the symptoms of colds and flu. Use these tablets when you are feeling any of the above, and want a quick relief from pain.

How will it treat my symptoms

Aspirin belongs to a group of medicines called non-steroidal anti-inflammatory drugs. It works by blocking the action of an enzyme in the body called cyclo-oxygenase (COX).

Can I buy Effervescent Tablets Over the Counter?

You can buy certain pack sizes and doses over the counter in the UK. You don’t need a prescription to buy this dose, but a pharmacist will need to ensure the treatment is suitable and safe for you.

What causes heartburn, indigestion and headaches?

Heartburn and acid indigestion usually occur when acid from the stomach rises and leaks into the food pipe. Too much stomach acid can also cause inflammation.

Indigestion is caused when the upper part of the stomach moves above the diaphragm, a muscle that separates your stomach from your chest.

Headaches can be caused by a number of different factors, they are primarily caused by the overactivity of, or problems with structures in the head that are pain-sensitive.

Do Effervescent Tablets cause any side effects?

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with effervescent tablets:

  • Disturbances of the gut such as nausea, vomiting, diarrhoea or abdominal pain. This can be helped by taking this medicine with or after food.
  • Ulceration or bleeding in the stomach or intestine
  • Changes in liver function
  • Increased time taken to stop bleeding
  • Allergic reactions such as skin rashes, swelling of the lips, tongue and throat, or narrowing of the airways.

What is the recommended dosage of this treatment?

The recommended dosage of effervescent is 2 tablets every 4 hours as needed. Do not exceed 8 tablets in 24 hours.

This treatment is not recommended for children under the age of 18, speak to your doctor if you are prescribed this medicine and are not over the age of 18.

How should I store these tablets?

Keep out of the reach and sight of children. Do not store above 25 degrees, and do not use this medicine after the expiry date printed on the label.

Shipping Costs

Free UK Delivery on all orders over £30 - Delivery within 3-5 working days

Standard UK Delivery - £2.95 - Delivery within 3-5 working days


Please Note: These prices are shown as a guide only. All delivery times are approximate but have been obtained in good faith.


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This means the packaging is plain, there is no mention of what product is inside your package and there is no mention of Chemist 4 U either.

We respect that many of our products are of a sensitive nature - this is why we take every step to keep your purchases private.


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