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.
3 adj You use professional to describe people who do a particular thing to earn money rather than as a hobby., (Antonym: amateur) This has been my worst time for injuries since I started as a professional footballer... Professional is also a noun., n-count. He had been a professional since March 1985.