[Cefazolin content in the gall bladder (author's transl)].

The concentration of cefazolin in the bile obtained by means of duodenoscopy was determined and compared with the values published as results of sampling by gall bladder puncture and T drains. The results obtained using this endoscopic procedure accorded with the results in the literature. When 1 g cefazolin was administered intravenously, high biliary levels of this drug with antibacterial activity were achieved. Our preliminary studies show that not only highly-sensitive gram-positive organisms, but also most of the E. coli Klebsiella and indol-negative proteus bacteria were affected when 1 g cefazolin was administered 3-4 times daily. These results will be reported later. Cefazolin (Gramaxin) represents a valuable addition to the chemotherapeutic agents available in combating infections of the gall bladder and the biliary duct system.