What Are the Side Effects of Tums?


Quick Answer

Potential side effects of Tums include constipation, upset stomach, vomiting, belching and dry mouth, states MedlinePlus. Increased urination, loss of appetite, stomach pain and metallic taste in the mouth may also result. Reporting side effects to a doctor is advised if the side effects are severe or unrelieved.

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Full Answer

Tums tablets are antacids used to relieve heartburn, acid indigestion and sour or upset stomach, explains DailyMed. They are also used as a calcium supplement for people with low calcium levels, notes MedlinePlus. Individuals 12 years of age and older should chew two to four tablets as needed for symptoms and not exceed 15 tablets in a 24-hour period, states DailyMed. Pregnant women should take no more than 10 tablets in 24 hours. Unless directed by a doctor, using Tums for more than two weeks is not advised.

The active ingredient in each Tums tablet is calcium carbonate, according to DailyMed. Because calcium carbonate sometimes decreases the effectiveness of other medications, it is best to take it one to two hours before or after other medicines, recommends MedlinePlus. Patients taking digoxin, etidronate, phenytoin, tetracycline or vitamins should consult their doctor before taking Tums. It is also important for patients with a history of stomach problems or kidney disease to talk to their doctor about safely using Tums.

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