Can I take Tums while pregnant?
Last updated September 3, 2026.
Yes: Tums (calcium carbonate) is the standard first-choice heartburn remedy in pregnancy, compatible within recommended amounts. The limits are about quantity: stay under the label maximum, because daily mega-dosing can overdo calcium and worsen constipation. Needing more than occasional relief is the cue to step up, not dose up: OBs commonly add famotidine or another compatible acid reducer, especially in the third trimester when the uterus squeezes the stomach. The free fixes cut how many you need: smaller frequent meals, no late-night eating, skipping your triggers (fatty, spicy, tomato, chocolate, mint, coffee), staying upright after meals, and raising the head of the bed. Bonus: the calcium counts toward pregnancy calcium needs, though it is no reason to overdo it. The call-the-same-day pattern: heartburn with upper-right abdominal pain, headache, or vision changes in the second half of pregnancy, which is a preeclampsia check, not a heartburn problem.
What to do
- Tums is the first choice: within the label maximum.
- Needing it daily: ask about famotidine instead of more Tums.
- Free fixes: small meals, no late eating, head of bed raised.
- Overuse risks: excess calcium, constipation.
- Heartburn plus headache or vision changes: call today; preeclampsia check.
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