Antihistaminika H[1]-antihistaminika 1. generace – promethazin, bisulepin, moxastin, dimenhydrinát, dimetinden, antazolin… 2. generace – cetirizin, loratadin 3. generace – levocetirizin, desloratadin H[2]-antihistaminika Cimetidin, ranitidin, famotidin H[3]-antihistaminika Betahistin