Cephalexin Dosing for Urinary Tract Infection in Pregnancy
Cephalexin can be used for treatment of asymptomatic bacteriuria or acute cystitis in pregnancy. A typical regimen is 250 to 500 mg orally twice daily for 5 to 7 days. [1]
Treatment Course Length
Pregnancy lower urinary tract infections (asymptomatic bacteriuria and acute cystitis) should be treated with an approximately 5–7-day antibiotic course. [2]
Dose for Pregnancy Urinary Suppression (After Recurrent Infection)
For antimicrobial urinary suppression after recurrent acute infection, cephalexin dosing is 250 to 500 mg orally once daily for the remainder of pregnancy and continuing until 4–6 weeks postpartum. [2]
Practical Dosing to Match Common Cephalexin Formulations
Cephalexin is commonly dosed as 250–500 mg per dose in pregnancy regimens for lower UTI. [1]
Safety and Administration Considerations
A urine culture should be obtained when indicated in pregnancy (eg, atypical presentations or recurrent infection) to guide antibiotic selection and dosing. [2]