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.
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Pro hac vice (American English pronunciation: [prÉÊ hÃ¦k 'vi:tÊei]), Latin: for this occasion or for this event (literally, for this turn), is a legal term usually referring to a practice in common law jurisdictions, whereby a lawyer who has not been admitted to practice in a certain jurisdiction is allowed to participate in a particular case in that jurisdiction.