Decision
Local TMP-SMX susceptibility 80%-100%?
Yes
TMP-SMX, 3 day course (Class II)
- No longer recommended in pregnancy
No or Unknown
Nitrofurantoin, 5 day course (Class II)
- No longer recommended in pregnancy.
- Some sources recommend against nitrofurantoin use in the elderly due to possible decreased effectiveness.
TMP/SMX or Nitrofurantoin Allergy