Treatment of Enterococcus faecalis UTI in Pregnant Women

First-Line Treatment Options

Ampicillin is the drug of choice for enterococcal infections, including UTIs during pregnancy, due to its established safety profile and efficacy against E. faecalis, with clinical and microbiological eradication rates reported at 88.1% and 86%, respectively 1, 3
Ampicillin achieves high urinary concentrations that can effectively treat E. faecalis UTIs, even in cases where the organism shows intermediate susceptibility in laboratory testing 1
For patients with normal renal function, a typical dosage of ampicillin is 500 mg PO/IV every 8 hours 1

Nitrofurantoin is FDA-approved for UTIs caused by E. faecalis and is considered safe during the second trimester of pregnancy, with good in vitro activity against E. faecalis 1, 4
Fosfomycin is FDA-approved for UTIs caused by E. faecalis and has a favorable safety profile during pregnancy, with limited data from observational studies showing promising results for uncomplicated UTIs due to E. faecalis 1, 4

Aminoglycosides (gentamicin) should be used cautiously and only for severe infections due to nephrotoxicity and ototoxicity risks 3
Ensure adequate hydration during treatment, as recommended by the American College of Radiology 5
Consider prophylaxis for recurrent UTIs with daily low-dose nitrofurantoin (if <36 weeks) or cephalexin, as recommended by the American College of Radiology 5