Theoretically, it is possible that diphenhydramine could affect a woman's milk supply, since the medication can suppress prolactin (a hormone important for breast milk production). However, this is probably not an issue for women who are well-established with breastfeeding.
PRO is a strategic communications firm helping high profile individuals, professional teams, national governing bodies, corporations and non-profits within the sports industry build their brands through the media.
in favor of a proposition, opinion, etc. noun, plural pros. 2. a proponent of an issue; a person who upholds the affirmative in a debate. 3. an argument, consideration, vote, etc., for something.