Abstract
Trimethoprim-sulfamethoxazole has been proven effective in the treatment and prevention of Pneumocystis carinii pneumonitis in lower animals and humans. How effective the drug combination is in eradicating P. carinii from the host is not known. The immunosuppressed rat model was used to determine whether or not trimethoprim-sulfamethoxazole effectively eradicated the organism. Animals treated with trimethoprim-sulfamethoxazole for as long as 6 weeks were then placed in individual isolater cages, immunosuppressed with prednisolone for 12 weeks, and sacrified. P. carinii was found in the lungs of at least 90% of the drug-treated as well as untreated control groups. The data indicate that trimethoprim-sulfamethoxazole has a limited rather than a lethal effect on P. carinii and that protection is afforded only during the period of trimethoprim-sulfamethoxazole administration.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 333-335 |
| Number of pages | 3 |
| Journal | Antimicrobial agents and chemotherapy |
| Volume | 16 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1979 |
| Externally published | Yes |
ASJC Scopus subject areas
- Pharmacology
- Pharmacology (medical)
- Infectious Diseases