Bepotastine
"I am very confused about the reviews stating the bad aftertaste, because this is an eye drop! I was given a sample by my optometrist. Previously, I was using Zaditor which worked okay, but it wasn't great and sometimes irritated my eyes even more. Bepreve makes my eyes feel very refreshed and "clear" of whatever it is that causes my eyes to feel dry/watery/irritated. I don't use it daily. Just when needed."