These are very large doses...I would be surprised if this woman can stay awake at all! I would keep nursing and watch for sedation in the infant. According to the latest Hale, only 3% of maternal dose of Zyrtec gets into the milk. Benadryl is far more likely to cause drowsiness IF a lot gets into the milk...which we do not know. IF the allergist chose Benadryl thinking it is safer for breastfeeding, Zyrtec is actually a better choice. I would also warn her to watch for a decrease in her milk supply. Kathy Leeper, MD, IBCLC *********************************************** To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or digest) To unsubscribe: unsubscribe lactnet All commands go to [log in to unmask] The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(R) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html