<unk>  brand extract is not an antihistamine and represents a symptomatic treatment with very different properties. In-vitro studies show that petasins in<unk>  brand extract inhibit leukotriene biosynthesis and block degranulation in activated mast cells and eosinophils.
Ze339
ReNu
Bra
QL 
C-KAD
Ippa
FLAG 
IPrEx