[Clinical evaluation of use of combinations of beta-lactamines in anti-infective therapy].

Clinical studies were undertaken in our Department of Medical Clinic about the therapeutic effects of two associated beta-lactamines in various respiratory infections. 20 patients affected by acute and chronic bronchitis were treated with the following standard protocol: cefadroxil (500 mg) plus dicloxacillin (250 mg) were given simultaneously four times daily for 8 days. For the clinical evaluation of the therapeutic index of drugs, the following parameters were checked in all patients on admission and repeated at the end of treatment: subjective symptoms (dyspnea, cough), fever, WBC count, sedimentation rate, antistreptolysin titre, chest film and the functional indices of hepatic, renal, hemopoietic tissues. To study the pharmacokinetics we measured the amounts of drugs in the body fluids; plasma levels and urinary concentration were determined 6 hours after the first administration of drugs. Our observations show a synergism of action between the cefadroxil and dicloxacillin; the efficacy of this treatment is confirmed in the majority of the patients: 95% of patients affected by acute respiratory infections show a significant decrease in symptoms and 55% a complete recovery.