The Basics

What is Calcium carbonate?

Used when someone is not getting enough calcium in their diet. Also used as an antacid to relieve heartburn, acid indigestion, and upset stomach.

Brand names for Calcium carbonate

Tums

How Calcium carbonate is classified

Antacid

Calcium carbonate During Pregnancy

Calcium carbonate pregnancy category

Category CNote that the FDA has deprecated the use of pregnancy categories, so for some medications, this information isn’t available. We still think it’s useful to list historical info, however, given what a common proxy this has been in the past.

What we know about taking Calcium carbonate while pregnant

Generally regarded as safe

Taking Calcium carbonate While Breastfeeding

What are recommendations for lactation if you're taking Calcium carbonate?

Maternal / infant drug levels

Possible effects of Calcium carbonate on milk supply

Possible alternatives to Calcium carbonate

None listed

List of References

Lactation sources: Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK501922/None listed

Disclaimer: This material is provided for educational purposes only and is not intended for medical advice, diagnosis, or treatment. Consult your healthcare provider with any questions.

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