Treatment of cystitis / asymptomatic bacteriuria in pregnancy November 27, 2017 Treatment of cystitis / asymptomatic bacteriuria in pregnancy Amoxicillin 250-500 mg after 8 hours 3 days Amoxicillin + clavulanic acid 375-625 mg after 8-12 hours Cefuroxime 250-500 mg after 8-12 hours Ceftibuten 400 mg after 24 hours Cephalexin 250-500 mg after 6 hours 3 days Nitrofurantoin 100 mg after 6 hours 3 days Supportive therapy Nitrofurantoin 100 mg at night Amoxicillin 250 mg per night Cephalexin 250 mg per night Phosphomycin 3.0 in 10 days