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  • Title: Activity of sulbactam/ampicillin in screening and discriminative animal models of infection.
    Author: English AR, Girard D, Cimochowski C, Faiella J, Retsema JA, Lynch JE.
    Journal: Rev Infect Dis; 1986; 8 Suppl 5():S535-42. PubMed ID: 3026002.
    Abstract:
    The efficacy of sulbactam/ampicillin in the treatment of mice with fatal systemic infections produced by ampicillin-resistant Staphylococcus aureus, Haemophilus influenzae, Klebsiella pneumoniae, or Proteus vulgaris strains is well established. In this paper the demonstrations of efficacy for sulbactam/ampicillin have been extended to a number of clinically relevant models, including bacteremia and meningitis produced by H. influenzae in infant rats, experimental staphylococcal endocarditis in rabbits, localized lesions in mice, urinary tract infections in rats, and prophylaxis in a surgical wound model in mice. In these models, in which ampicillin-resistant organisms were used, sulbactam/ampicillin was either more effective than or as effective as appropriate control agents. Neither sulbactam nor ampicillin used separately displayed significant activity. The results of supportive pharmacokinetic studies, in which differential bioassays were used, demonstrated that sulbactam and ampicillin generally were delivered with equal efficiency to plasma and to extravascular fluids obtained by sampling the contents of implanted cylinders.
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