Uncomplicated cystitis: 3 g PO once
Complicated cystitis: 3 g PO every 3 days x 3 doses
Restricted to treatment of acute uncomplicated cystitis caused by susceptible organisms with demonstrated resistance and/or intolerance to all other oral agents.
DO NOT use for pyelonephritis or bacteremia as insufficient systemic drug levels.
GI upset, esp. diarrhea
IV formulation not available in Canada
Antimicrobial class: Phosphonic acid derivative
Pregnancy category: B