Active substance
Calcium Carbonate and Simethicone
2 products from 2 companies contain this in United States.
2 without prescriptionTablet, Chewable
Available without a prescription
Alka-Seltzer Heartburn Plus Gas Reliefchews Tropical Punch80 mg + 750 mgWithout prescription Bayer HealthCare LLC. · Calcium Carbonate and SimethiconeTums Chewy Bites with Gas Relief750 mg + 80 mgWithout prescription Haleon US Holdings LLC · Calcium Carbonate and Simethicone
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.