IL4 and asthma: A.cepa has been shown to be selective in mice, with methanol extracts of A. cepa (10, 200, and 100 g) inhibiting IL-4, IL-13, and IL-5, as well as IgE, at 1000 μg/mL and Th2 cytokines, Oral administration of A. cepa methanol extract was also tried by a group of scientists (100 and 1000 mg/kg) reduced IL-4, IgE, IL-5, and IL-13 levels in a murine model of Blomia tropicalis-induced asthma [163].