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  • Title: Relative potency of 10 drugs with anti-Pneumocystis carinii activity in an animal model.
    Author: Hughes WT, Killmar JT, Oz HS.
    Journal: J Infect Dis; 1994 Oct; 170(4):906-11. PubMed ID: 7930735.
    Abstract:
    Several drugs have been shown to have anti-Pneumocystis carinii activity in clinical trials. Because of the large number of patients required, no more than 3 drugs can be compared for efficacy in human studies. However, the experimental animal model for P. carinii pneumonitis is remarkably similar to the human disease and was used to compare 10 drugs for the relative potency against this infection. All drugs were compared at doses known to prevent the pneumonitis in > 80% of animals and at one-tenth of this dose. Drugs effective at the lowest dose were further tested at one-hundredth the original doses, and drugs ineffective were retested at 10 and 100 times the original dose. Trimethoprim-sulfamethoxazole was the most effective drug, with azithromycin-sulfamethoxazole and clarithromycin-sulfamethoxazole next most effective. Intravenous pentamidine and clindamycin-primaquine were the least effective. Atovaquone, sulfadoxine-pyrimethamine, erythromycin-sulfisoxazole, PS-15, and dapsone-trimethoprim had intermediate activity.
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