Description
LevocetirizineistheL-isomerofcetirizine,asecond-generationhistamineH1receptorantagoNIST.Levocetirizineexhibitsanti-allergic,anti-inflammatory,andimmunomodulatoryactivities.Inanimalmodelsofallergicconjunctivitis,levocetirizinedecreaseslevelsoflipoxinA4,TNF-α,TGF-β,andantigenpresentingcells(APCs)andincreaseslevelsofIL-10.Additionally,thiscompoundincreaseslevelsofCD4+CD25+Tcellsanddecreaseslevelsofeosinophils,decreasingallergysymptomsinclinicalsettings.