Benadryl and Lactation
There is conflicting information regarding the safety of Benadryl® (diphenhydramine hydrochloride) for breastfeeding women. Therefore, if you are breastfeeding, talk with your healthcare provider before taking Benadryl.
If you are breastfeeding and taking Benadryl, lactation problems may occur. Theoretically, it is possible that the medication could affect a woman's milk supply, since the medication can suppress prolactin (a hormone important for breast milk production). Also, Benadryl is known to pass through breast milk. The manufacturer of Benadryl recommends that breastfeeding women never take the medication, since newborns and premature infants are especially sensitive to the medication.
If your healthcare provider decides that it is okay for you to take Benadryl while breastfeeding, be sure to watch for any changes or side effects in your nursing child.
(Click Benadryl and Breastfeeding for more information on Benadryl and lactation, and to learn more about the potential dangers of using this drug while breastfeeding.)