Antibiotic allergy/side effects

tx5athome
Sun, 15 Nov 2015 15:20:07 +0000

Antihistamines like Benadryl, Zyrtec and Allegra (my personal favorite) are H-1 blockers. Zantac, etc… are H-2 blockers. In cases of severe allergic reactions/hives/rash we often add an H-2 blocker, not for its effects in the stomach, but for their anti-histamine effects.