GLP-1s and Breastfeeding: ACOG Guidance, Milk Data by Drug
7 of 10 GLP-1 labels say it is not known whether the medicine passes into breast milk. The Mounjaro and Zepbound labels cite a small study where levels in breast milk were undetectable or low.
Half-life and weight loss overview
In days, half-life shows how long the body needs to clear half a dose. The figure comes from 12.3 in each FDA label.
Percentage of body weight. Because trials, doses, and time periods vary, compare each result with the placebo on its own page.
Each GLP-1 label on breastfeeding
| Medicine | What the label says | How it is taken |
|---|---|---|
 Ozempic | It is not known if the medicine passes into human breast milk. | weekly injection |
 Wegovy | SNAC is present in breast milk and tablets. It is not known whether the injected form passes into breast milk. | weekly injection or daily tablet |
 Rybelsus | The tablets contain SNAC, and breast milk contains it as well. | daily tablet |
 Mounjaro | A small study found breast milk levels that were undetectable or low. | weekly injection |
 Zepbound | A small study found breast milk levels that were undetectable or low. | weekly injection |
 Foundayo | It is not known if the medicine passes into human breast milk. | daily tablet |
 Trulicity | It is not known if the medicine passes into human breast milk. | weekly injection |
 Saxenda | It is not known if the medicine passes into human breast milk. | daily injection |
 Victoza | It is not known if the medicine passes into human breast milk. | daily injection |
| Byetta | It is not known if the medicine passes into human breast milk. | twice-daily injection |
Sources: FDA label (DailyMed).
Warnings from the FDA (DailyMed) label.
Questions for your prescriber
- While I am breastfeeding, is there an option that has been studied more?
- Should I wait until I have weaned?