The active substance is Aspirin (Acetylsalicylic Acid) (324mg per Tablet)
The other ingredients are Sodium Hydrogen Carbonate and Citric Acid
Alka-Seltzer water-soluble tablets are rapidly absorbed for fast, effective relief from general pain, fever, and inflammation.
Including:
Headache and migraine
Period pain
Rheumatic and muscular pain
Toothache
Sore throat
Nerve pain
Symptomatic relief of colds and flu.
Please read the enclosed leaflet carefully.
Alka-Seltzer Original tablets must always be dissolved in water before use.
Adults and children over 16:
Two tablets dissolved in half a glass (100ml) of water may be taken every 4 hours as required. You should not take more than 8 tablets in 24 hours.
Not recommended for children under 16.
This product is packaged in pouches containing 1 or 2 tablets. If the pouch is damaged or if a tablet is powdery or discoloured, do not use the tablet.