Noberastine citrate

Noberastine citrate is a potent and selective peripheral histamine H1 antagonist derived from nor-astemizole. It exhibits rapid absorption with peak plasma levels at 2 hours and maximum antihistaminic activity at 4 hours, showing dose-dependent inhibition of histamine-induced weal and flare in studies. Its rapid onset, short duration, and lack of central nervous system effects make it a useful research tool for investigating allergic mechanisms in vivo and in vitro.