Tums for acid reflux in pregnancy

Tums contains calcium carbonate, an antacid that neutralises some stomach acid already present. It can calm burning or a sour taste for a limited time, but it does not treat every cause of reflux. Pregnancy can make reflux more noticeable as hormonal changes affect the valve between the stomach and food pipe, while the growing uterus changes pressure inside the abdomen. Reflux can also disturb sleep or trigger a cough; see our pages on [Acid Reflux](/conditions/acid-reflux/), [Cough](/symptoms/cough/), and [Difficulty Sleeping](/symptoms/difficulty-sleeping/).

Read the exact package directions and use the smallest amount that controls occasional symptoms. Do not combine several antacid products without advice. Keep calcium-containing antacids separate from iron or prenatal supplements when your clinician or pharmacist recommends spacing them, because they can affect absorption. Smaller meals, remaining upright after eating, and avoiding food close to bedtime may reduce episodes. Ask before using Tums if you have kidney disease, take regular medicines, or need frequent relief. A clinician can consider an alternative such as an acid-reducing medicine if lifestyle measures and occasional antacid use are not enough.

Seek urgent care for severe or persistent chest pressure, trouble breathing, fainting, vomiting blood, black stools, or severe abdominal pain. Contact your maternity team promptly if reflux is frequent, worsening, prevents eating or sleeping, or comes with repeated vomiting, difficulty swallowing, or unexplained weight loss. Chest symptoms in pregnancy should not be assumed to be reflux; chest tightness deserves assessment (see [Chest Tightness](/symptoms/chest-tightness/)).

Ask whether this Tums product is suitable for you, how it fits around your prenatal vitamins, and what to use if symptoms recur. Mention your pregnancy stage, other medicines, kidney history, and any cough or abdominal pain.