Animal studies with benzoyl peroxide have not been reported. Animal studies with oral doses of salicylic acid have revealed evidence of teratogenicity; animal studies with topical administration have not been reported. There are no controlled data in human pregnancy.

US FDA pregnancy category C: Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

This drug should be used during pregnancy only if clearly needed.

US FDA pregnancy category: C

See references

Caution is recommended.

Excreted into human milk: Unknown
Excreted into animal milk: Data not available

Comments:
-Application to areas of skin that may come into direct contact with the infant's skin or where the infant may ingest the drug via licking should be avoided.
-Benzoyl peroxide topical: This drug has not been studied during breastfeeding; it is considered low risk to nursing infants as only about 5% is absorbed after topical application.
-Salicylic acid topical: No information available regarding clinical use on skin during breastfeeding; use is considered acceptable as significant absorption or appearance in breast milk is unlikely.

See references