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PubMed1991

[Stability of cefazolin sodium as eyedrops in various solutions].

Cephazolin sodium prepared with four different solutions (NaCl 0.9%, Protagent, Liquifilm and phosphate buffer) to be used as eye drops, was evaluated as to its physicochemical features at +4 degrees C, +37 degrees C and at room temperature and its activity in terms of minimal inhibition concentration. In conclusion, cephazolin sodium prepared with artificial tears at acidic pH can be kept for 3 days at room temperature and at +4 degrees C without any loss of its activity.

Buffers↗
PubMed1990

[The in vitro effect of a combination of sulbactam with cephalothin and cefazolin on strains of Escherichia coli and Proteus mirabilis which produce beta lactamase].

The effect of the combination of sulbactam, cephalothin, and cephazolin was studied in vitro on 88 strains of E. coli and 11 strains of P. mirabilis producing beta-lactamases. Quantitative susceptibility of the tested strains to cephalothin was examined by the disk dilution method and the effect of the combinations with sulbactam by the micromethod. The production of beta-lactamases was determined by the qualitative test with the chromogenic substrate PODAC. Of the total number of 160 E. coli strains beta-lactamases were established in 53.3% of the strains. Of the 47 P. mirabilis strains 23.4% were found to produce beta-lactamases. The effect of the combinations with sulbactam was assessed as synergistic, additive, indifferent or antagonistic. In the combination of sulbactam in the concentration of 16.0 mg/l with cephalothin and cephazolin a higher rate of synergistic and additive effect was recorded on both strains. In none of the combinations did sulbactam exert an antagonistic effect.

Cefazolin↗
PubMed1989

[Comparative study of short-term antimicrobial chemoprophylaxis in gynecologic surgery: cefotetan versus cefazolin].

The results obtained in 80 patients hospitalized at the University of Obstetrics and Gynecology Clinic in Perugia for abdominal and vaginal hysterectomy are reported and evaluated in a prospective and randomized study of perioperative antibacterial prophylaxis. In the 75 patients available to study a single intravenous dose of 2 g cefotetan was compared with a triple dose of 1 g intravenous cephazolin. A reduction in the incidence of post-operative infections both in abdominal hysterectomy from 24% (cephazolin group) to 11.53% (cefotetan group) and in vaginal hysterectomy from 40% (cephazolin group) to 71.4% (cefotetan group) was noted. These results show that a single intravenous dose of 2 g cefotetan can be considered a valid therapeutic support for antibacterial prophylaxis. In addition the absence of alterations in the parameters considered (haematological, biochemical and urinary) points to the safety, effectiveness and non-toxicity of the drug.

Anti-Infective Agents↗