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Alka-Seltzer XS tablets are pain relievers containing aspirin, paracetamol and caffeine as the main active ingredients. They also contain sodium hydrogen carbonate and citric acid. These tablets are effervescent, which means they dissolve in water and become fizzy.

Dosage: Adults and children over 16 should dissolve two tablets in half a glass (100ml) of water, every 4 hours as required. You should not take more than 8 tablets in 24 hours. Do not take Alka-Seltzer XS for more than 3 days in a row – if you do not get better, talk to your doctor.

Alka-Seltzer XS must always be dissolved in water before use. They will not work effectively if you try to swallow them whole. Ingredients: Alka-Seltzer XS contains two pain relievers, aspirin and paracetamol. Aspirin belongs to a group of medicines called non-steroidal anti-inflammatory drugs (NSAIDs) and paracetamol is a medicine commonly used in the treatment of mild to moderate pain and the reduction of fever.

These tablets also contain caffeine, a mild stimulant that may enhance the pain-relieving effects of aspirin and paracetamol.
Sodium hydrogen carbonate and citric acid are also included in Alka-Seltzer XS. These ingredients have antacid properties and can help to relieve indigestion or an upset stomach.

Uses: The aspirin and paracetamol in Alka-Seltzer XS can provide relief from mild to moderate aches and pains, including:

– Headache
– Migraine
– Backache
– Nerve pain
– Period pain
– Toothache
– Sore throat
– Rheumatic pain (arthritis)
– Muscle tenderness and stiffness
– Muscular aches and pains

Alka-Seltzer XS tablets can also be used to provide symptomatic relief of colds and flu, as well as an effective reduction of high temperature.

The sodium hydrogen carbonate and citric acid in Alka-Seltzer XS can provide effective relief against:

– Heartburn
– Indigestion
– Upset stomach

Warning: You should not take Alka-Seltzer XS if you are pregnant, breastfeeding or trying for a baby – unless otherwise directed by your doctor.

These tablets are not suitable for children under 16, due to a possible connection between aspirin and Reye’s syndrome, a very rare but very serious condition that can cause liver and brain damage. If your child is experiencing pain, browse our full range of pain relief products for suitable alternatives.

When not to use: Are allergic to aspirin, paracetamol, caffeine or any of the ingredients
– Are allergic to any other pain relieving or anti-inflammatory medicines (e.g. NSAIDs or salicylates)
– Have a disorder which causes excessive bleeding such as haemophilia
– Have, or have had a stomach or duodenal ulcer
– Are on a high dose of methotrexate (15mg per week or more)