Is Tums (antacids) Safe During Pregnancy?

Is tums (antacids) safe during pregnancy?

Calcium-carbonate antacids are a common, low-risk first choice for heartburn. In short, tums (antacids) is generally considered safe during pregnancy when you follow the guidance below.

What the evidence shows

Almost any medication you take can cross the placenta, so the question is never just “does it work” but “is the benefit worth any possible effect on the baby at this stage.” Many common drugs have safer pregnancy-friendly alternatives, and the safest choice can change by trimester.

How to enjoy it safely

Tums (antacids) is considered a reasonable option, but “safe” still means “at the normal dose, for a real reason.” Use the lowest effective amount for the shortest time you need, and let your provider know what you're taking so it fits the rest of your care.

What about breastfeeding?

Breastfeeding guidance for tums (antacids) isn't always the same as pregnancy guidance — what passes into breast milk differs from what crosses the placenta. If you're nursing, ask your provider about tums (antacids) specifically.

The bottom line

Tums (antacids): generally considered safe in pregnancy. Enjoy it sensibly as part of a varied, healthy pregnancy. This page is general education, not medical advice — your provider knows your history and is the final word for your pregnancy.