Furadantin Dosage

Generic name: Nitrofurantoin Oral Suspension
Drug class: Urinary anti-infectives

Medically reviewed by  A Ras MD.

Recommended Adult Dosing

Dosage forms:  SUSP: 25 mg per 5 mL

UTI tx, uncomplicated

[50-100 mg PO qid x5 days]

Info: for cystitis; refer to IDSA guidelines; give w/ food

UTI prophylaxis

[50-100 mg PO qhs]

Info: for lower UTI prophylaxis; give w/ food

Renal dosing

CrCl <60: contraindicated per pkg insert; Alt: not defined, caution advised if CrCl 30-60

HD/PD: avoid use

Hepatic dosing

[not defined]

Recommended Peds Dosing

Dosage forms:  SUSP: 25 mg per 5 mL

UTI tx, uncomplicated

[1 mo and older]

Dose: 5-7 mg/kg/day PO divided q6h x7-14 days; Max: 400 mg/day; Info: for cystitis; refer to AAP guidelines; give w/ food

UTI prophylaxis

[1 mo and older]

Dose: 1-2 mg/kg/day PO divided q12-24h; Max: 100 mg/day; Info: for lower UTI prophylaxis; give w/ food

Renal dosing

CrCl <60: contraindicated

HD/PD: avoid use

Hepatic dosing

[not defined]

SRC: NLM .