Usual Pathogens

Pneumocystis jirovecii

 

Empiric Therapy Dose Duration
TMP/SMX 2DS tab PO q8h or 15-20mg TMP/kg/day IV div q8h 21 days
or    
[Trimethoprim 15mg/kg/d PO div tid 21 days
+    
Dapsone] 100mg PO daily  

Alternative

Empiric Therapy Dose Duration
Pentamidine 4mg/kg IV daily 21 days
or    
[Clindamycin IV/PO 600mg IV q8h/300-450mg PO qid 21 days
+    
Primaquine] 15mg PO daily  
or    
Atovaquone susp 750mg PO bid with food 21 days

PLUS if indicated

Adjunctive Oral Corticosteroid

Empiric Therapy Dose Duration
Prednisone 40mg PO bid 5 days
then    
Prednisone 40mg PO daily 5 days
then    
Prednisone 20mg PO daily 11 days

or

Adjunctive Parenteral Corticosteroid

Empiric Therapy Dose Duration
Methylprednisolone 30mg IV bid 5 days
then    
Methylprednisolone 30mg IV daily 5 days
then    
Methylprednisolone 15mg IV daily 11 days