Active substance

Anhydrous Citric Acid, Aspirin, and Sodium Bicarbonate

5 products from 3 companies contain this in United States.

5 without prescriptionTablet, Effervescent

Available without a prescription

Alka-Seltzer Hangover Relief65 mg + 500 mgWithout prescriptionTablet, Effervescent Bayer HealthCare LLC. · Anhydrous Citric Acid, Aspirin, and Sodium Bicarbonate Alka-Seltzer Heartburn and Pain1000 mg + 325 mg + 1916 mgWithout prescriptionTablet, Effervescent Bayer HealthCare LLC. · Anhydrous Citric Acid, Aspirin, and Sodium Bicarbonate Alka-Seltzer Original1000 mg + 325 mg + 1916 mgWithout prescriptionTablet, Effervescent Bayer HealthCare LLC. · Anhydrous Citric Acid, Aspirin, and Sodium Bicarbonate Alka-Seltzer Original325 mg + 1916 mg + 1000 mgWithout prescriptionTablet, Effervescent R J General Corporation · Anhydrous Citric Acid, Aspirin, and Sodium Bicarbonate Alka-Seltzer Original1000 mg + 325 mg + 1916 mgWithout prescriptionTablet, Effervescent Select Consumer Group · Anhydrous Citric Acid, Aspirin, and Sodium Bicarbonate

Same substance is not the same product. Strength, form, release mechanism and other ingredients all differ. Whether one can replace another is a decision for a pharmacist.