Alka-Seltzer Extra Strength Effervescent Tablets, 24 tablet

The classic fizz in a glass. Alka-Seltzer Extra Strength dissolves into a drink that neutralises stomach acid and relieves pain at the same time, which is useful when a headache or body aches come with heartburn, acid indigestion or an upset stomach.

Per tablet

• Aspirin (acetylsalicylic acid): 500 mg
• Citric acid: 1,000 mg
• Sodium bicarbonate: 1,916 mg
• Non-medicinal: calcium silicate, dimethicone, flavour

How to take it

• Always dissolve first: drop tablets into about 4 oz (120 mL) of water, wait until the fizzing stops, then drink right away
• Ages 12+: 2 tablets every 4 hours as needed
• Maximum 8 tablets in 24 hours; age 60 and over, maximum 4 tablets in 24 hours
• Not for children under 12 unless a health professional advises

Do not use, or ask a doctor first, if you

• Are allergic to aspirin or other salicylates, or already take another aspirin product
• Have kidney or liver disease or a bleeding disorder, or take blood thinners
• Are pregnant or breastfeeding

Avoid alcohol. Mild stomach upset, heartburn or nausea can happen, and high doses may cause ringing in the ears. Get immediate help for rash or swelling, severe stomach pain, vomiting blood or trouble breathing. Stop and see a professional if symptoms persist.