 Histaminum hydrochloricum. Just remember histaminum. Histaminum hydrochloricum. Hydrochloricum. And if you get the histaminum in there and you get to the Boyron stuff, you'll find it there. But that's the one I use. There may be other homeopathic remedies that are used for allergies and stuff, but I haven't ever gotten to them because this histaminum works really well for me.