generalized anaphylaxis

gen·er·al·ized an·a·phy·lax·is

(jen'ĕr-ă-līzd an'ă-fi-lak'sis) The immediate response, involving smooth muscles and capillaries throughout the body, which follows injection of antigen (allergen).
See also: anaphylactic shock
Synonym(s): systemic anaphylaxis.