As of 2015, the 3M Company has discontinued 355-10 Titralac antacid in 100-tablet bottles, according to Fastenal. The spearmint-flavored version is also discontinued, but North by Honeywell offers a 420-milligram alternative, according to Grainger. The nonprescription calcium carbonate tablets relieve sour stomach, heartburn, acid indigestion and flatulence quickly, notes Drugs.com.
Appetite loss, vomiting, weakness, confusion, and excessive urination and thirst are some rare but significant side effects that consumers might experience when taking calcium carbonate antacid tablets, notes MedicineNet. Consumers should notify their doctors immediately if any such symptoms appear. Individuals with high calcium levels, calcium allergies, kidney stones or who are pregnant should talk to their doctors before taking any calcium-based antacids.