De omfattede anafylaksi, hududslæt, urticaria, angioødem, dyspnø og hypotension og opstod ved indledning af behandlingen eller under vedligeholdelsesbehandling.
Allergic-type reactions, including anaphylaxis, skin rash, urticaria, angioedema, dyspnoea and hypotension, occurring on initial or subsequent treatment, have been reported in patients receiving filgrastim.