Females, Frequent, related to coitus

Usual Pathogens

E. coli
S. saprophyticus
Other Enterobacterales

Pericoital prophylaxis

Empiric Therapy Dose Duration
TMP/SMX 1 SS tab PO pericoitus  
or    
Trimethoprim 100mg PO pericoitus  
or    
Nitrofurantoin Macrobid 100mg PO pericoitus / 50mg PO pericoitus  

Pregnancy

Empiric Therapy Dose Duration
Nitrofurantoin

Macrobid 100mg PO pericoitus / 50mg PO pericoitus

 

Alternative in Pregnancy

Empiric Therapy Dose Duration
Cephalexin 125-250mg PO pericoitus