[Experimental investigations concerning spectrum, serum concentration, and excretion of Spectacillin (author's transl)].

By means of the diffusion test, the range of action of the ampicillin successive preparation spectacillin was determined using 12 000 pathological germs freshly isolated from in-patients. The result was a range of action similar to that of ampicillin. A comparison, however, is only possible in case the test platelets (without over-dosage) are each charged with exactly, e.