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.
Pro Modified, also known as Pro Mod, is a class or division in the sport of drag racing used in the NHRA and FIA and the Professional Drag Racers Association. It is similar to the Top Doorslammer class as defined by the ANDRA.