Tums for heartburn while pregnant

Heartburn describes burning behind the breastbone or rising toward the throat. During pregnancy, hormonal changes can loosen the stomach's valve and the expanding uterus can increase pressure on the stomach. Tums is a calcium carbonate antacid: it works locally by neutralising stomach acid, so its effect is temporary. Recurrent heartburn can be related to [Acid Reflux](/conditions/acid-reflux/), although gastritis, a hiatus hernia, obesity, or a peptic ulcer may also need consideration. Similar symptoms do not identify one condition by themselves.

Check the label each time because products can differ in strength and added ingredients. Follow the stated directions and avoid taking more than advised. Ask a pharmacist about spacing Tums from iron-containing prenatal supplements and other medicines. Sit upright after meals, choose smaller meals, and avoid lying down soon after eating. Keep a note of triggers and how often symptoms occur; that pattern helps your maternity clinician decide whether a longer-acting treatment is needed. Do not use frequent self-treatment to cover symptoms that are steadily worsening.

Seek emergency help for severe chest pressure, shortness of breath, fainting, vomiting blood, black stools, or intense sudden pain. Contact your maternity team if burning is frequent, interferes with swallowing, causes repeated vomiting, or prevents food, fluids, or sleep. A new or unusually severe symptom should be assessed rather than attributed to pregnancy heartburn.

Ask whether your exact Tums product fits your pregnancy and how to coordinate it with prenatal vitamins. Also ask what symptoms should prompt a review and what alternative is suitable if episodes continue.