Alka Seltzer Lemon 20sFor relief of headache and upset stomach.DirectionsDissolves 2 tablets in a glass of water before drinking. Repeat every 4 hours if necessary. Do not take moer than 8 tablets in a 24-hour period.IngredientsCholine salicylate BP 8.7% w/w Cetylpyridinium chloride USP 0.01% w/wCautionary InstructionsNot to be taken by persons under 16 years old unless prescribed by a doctor. Do not take this product if you have asthma? persistent stomach problems? bleeding problems? during pregnancy or breastfeeding? or if you are taking medication for thinning the blood? or for children/teenagers with chicken pox/influenza/fever unless directed by a doctor. Do not take if on a sodium-restricted diet. Do not take this product if you are allergic to the active ingredients or if you have gastrointestinal ulcers. Acetylsalicylic acid may increase the risk of gastrointestinal bleeding when taken simultaneously with corticosteroids or alcohol. Possible side effects include gastrointestinal irritation? or ulcers and allergic reactions.