Let's take a minute to talk about your medication. This is a calcium carbonate chewable tablet. You may hear it called by a common brand name, Tums. This medicine is an antacid. It helps relieve heartburn, acid indigestion, sour stomach and it can soothe upset stomachs that happen from these conditions. Calcium carbonate has many other uses, too. For example, it can be taken as a source of calcium. Calcium comes from food that we eat, especially dairy food. Calcium helps keep our bones and teeth strong. Calcium also helps our muscles, nerves, blood, and other parts of the body to work properly. However, calcium supplements may be harmful to certain patients. So, it's a good idea to check with your doctor before using supplements like calcium. You should take this medicine as instructed on the package label. Do not take more than the recommended dose, unless your doctor says it is okay. Also, check with your doctor if your symptoms last for more than 2 weeks. Most patients tolerate calcium carbonate very well. It can have interactions with some prescription medicines. These include certain antibiotics, thyroid medicines, heart medicines and blood pressure medicines. For best results with calcium carbonate, talk to your doctor or pharmacist for helpful advice about this medicine and your condition. .