400
A 28-year-old homosexual man presents to your office complaining of a nonproductive cough, shortness of breath, fever, and chills. A chest radiograph shows bilateral interstitial infiltrates. The best treatment is
A) oral azithromycin
B) intravenous penicillin
C) intravenous TMP-SMX
D) intravenous amphotericin
E) observation only
What is C) intravenous TMP-SMX?