Teicoplanin tolerance is usually good. Leukoneutropenia (leukopenia) h
as rarely been noted (0.3 %). Two of our patients who were treated wit
h teicoplanin for bone or/and joint infections experienced severe febr
ile leukoneutropenia after 14 and 21 days of therapy. Abnormal hematol
ogical values quickly reverted to normal after teicoplanin was stopped
while associated treatments were not modified. Vancomycin was given t
o one of these two patients with no adverse effect. The mechanism of t
eicoplanin hematological toxicity remains unknown. This side-effect of
teicoplanin remains very infrequent and its excellent tolerance and e
fficiency cannot be questioned.