Drug of choice for pneumocystis carinii is
The treatment of choice for PCP is trimethoprim-sulfamethoxazole (TMP-SMX), given either IV or PO for 14-21 days .TMP-SMX, which interferes with the organism's folate metabolism, is at least as effective as alternative agents and is better tolerated. Ref Harrison 19th edition pg 1019 Davidson edition23rd pg 587
Doxycycline
Cotrimoxazole
Tetracycline
Dapsone
Respiratory system