“…Norepinephrine does not produce eosinopenia [17], while isoproteronol is quite active in this respect. Dibenamine, an «-adrenergic blocker, does not affect the éosinopénie action of epinephrine [20], Pretreatment with propranolol, however, reduces or even totally prevents eosinopenia induced by both epinephrine and isopréna line, a fact observed by others authors [1,13,18,20], and confirmed by the results reported here.…”