What antihistamines are safe for breastfeeding?
Zyrtec (cetirizine) is the preferred antihistamine when breastfeeding. Other antihistamines are also considered safe but do not have as much research to support this. These include Allegra Claritin, and Xyzal. Antihistamines such as Zatador are available as eye drops, which help itchy, watery eyes.
How long does antihistamine stay in breastmilk?
Five hours after the dose, milk levels were undetectable in two women and 20 and 100 mcg/L in two others.
Why is Zyrtec not recommended while breastfeeding?
However, caution is advised for cetirizine use while breastfeeding due to the theoretical risk of CNS depression based on limited human data and risk of decreased milk production.