Which statement describes the breast milk effects of anticholinergic use?

• A. Increase prolactin
• B. May increase prolactin
• C. No data
• D. No data. Can reduce prolactin, may reduce milk production.

Answer: (D)

Breast milk production hinges on prolactin, with dopamine acting as the main brake on prolactin release. Anticholinergic drugs don’t have a consistent, well-established effect on prolactin levels, so there isn’t solid data showing they reliably raise or raise milk production. Some limited reports suggest these drugs could potentially lower prolactin, which would make milk production drop, but the evidence is not robust or consistent across drugs and situations. Because of this uncertainty, the most accurate way to describe the current knowledge is that there’s no definitive data, but there is a possibility that prolactin could be reduced and, as a result, milk production could be impacted.