An in vitro study of the possible interaction between human platelets and cephalosporins

The effects in vitro of four cephalosporins (ceftazidime, cefuroxime, cefotaxime and ceftriaxone) on adenosine diphosphate-induced human platelet aggregation were investigated. Ceftazidime-induced inhibition of platelet aggregation was significant only at a final concentration of 1 mg/ml, whereas ceftriaxone-induced inhibition of platelet aggregation was also significant at a final concentration of 0.01 mg/ml. Cefotaxime and cefuroxime were less active than ceftriaxone.