Alka-Seltzer Original Aspirin - 20 Effervescent Tablets
The original fizzing aspirin — dissolves in water for fast, effective relief from headache, aches and pains, buffered to be gentler on the stomach. 20 tablets, 16+.
- Fast-dissolving aspirin relief.
- Bicarbonate-buffered for the stomach.
- Headache, aches and pains.
- The Bayer original since 1931.
- 20 effervescent tablets, 16+.
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General sale medicine
Contains aspirin
High sodium — effervescent
Product overview
About Alka-Seltzer Original
Bayer's fizzing classic: aspirin in an effervescent tablet that dissolves in water and gets to work fast on headaches, aches and pains. The bicarbonate that makes it fizz also makes it gentler on the stomach than swallowing a dry aspirin tablet — the reason Alka-Seltzer has been the morning-after go-to for generations. 20 tablets.
Why effervescent
A dissolved painkiller is already in solution when it hits the stomach, so it's absorbed faster than a tablet that has to break down first. Alka-Seltzer's sodium bicarbonate buffers the aspirin too — quicker onset, less stomach grumble, and a drink of water in the bargain when you need it most.
How to take
Drop the tablets into a glass of water, let them dissolve completely, and drink. Follow the pack for dose and spacing, and never exceed the stated maximum in 24 hours. Adults and children over 16 only.
Good to know
Aspirin rules apply: not under 16, and not with stomach ulcers, bleeding disorders, aspirin-sensitive asthma or blood thinners without pharmacist advice. Each tablet carries a fair dose of sodium — worth knowing on a low-salt diet.
Product details
- Active ingredients Aspirin, Sodium bicarbonate, Citric acid
- Vendor Alka Seltzer
- SKU 2413789
Important information
Please read before purchase. The information provided regarding medicines, dietary supplements or ointments is not to be taken as medical advice.
Consult a healthcare professional prior to use if you are pregnant, nursing, taking medication, or have a medical condition.
Keep out of reach of children. Store in a cool, dry place. Do not use if the seal under the cap is broken or missing. Always read the label and any patient information leaflet before use.
Frequently asked questions
Why is it faster than an aspirin tablet?
It's already dissolved when you drink it, so absorption starts immediately rather than waiting for a tablet to break down in the stomach.
Can I take it with other painkillers?
Not with other aspirin or NSAID products such as ibuprofen. Paracetamol is generally fine alongside — ask our pharmacist if unsure.
Who shouldn't take Alka-Seltzer?
Under-16s, anyone with a stomach ulcer or bleeding problem, aspirin-sensitive asthmatics, and people on anticoagulants without medical advice.
Shipping information
We deliver across mainland UK by Royal Mail Tracked, usually within 3–5 working days.
Delivery is £2.99, or free on orders over £40. You'll get tracking by email once your order is on its way.
For full details, see our Delivery Policy.