Generic name: nitrofurantoin
Dosage form: oral suspension
This dosage information does not include all the information needed to use Furadantin safely and effectively. See full prescribing information for Furadantin.
The information at Drugs.com is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.
Furadantin should be given with food to improve drug absorption and, in some patients, tolerance.
50-100 mg four times a day -- the lower dosage level is recommended for uncomplicated urinary tract infections.
5-7 mg/kg of body weight per 24 hours, given in four divided doses (contraindicated under one month of age).
The following table is based on an average weight in each range receiving 5 to 6 mg/kg of body weight per 24 hours, given in four divided doses. It can be used to calculate an average dose of Furadantin Oral Suspension (25 mg/5mL) for pediatric patients (one 5-mL teaspoon of Furadantin Oral Suspension contains 25 mg of nitrofurantoin):
|Body Weight||No. Teaspoonfuls|
|Pounds||Kilograms||4 Times Daily|
|15 to 26||7 to 11||1/2 (2.5 mL)|
|27 to 46||12 to 21||1 (5 mL)|
|47 to 68||22 to 30||1 1/2 (7.5 mL)|
|69 to 91||31 to 41||2 (10mL)|
Therapy should be continued for one week or for at least 3 days after sterility of the urine is obtained. Continued infection indicates the need for reevaluation.
For long-term suppressive therapy in adults, a reduction of dosage to 50-100 mg at bedtime may be adequate. For long-term suppressive therapy in pediatric patients, doses as low as 1 mg/kg per 24 hours, given in a single dose or in two divided doses, may be adequate. SEE WARNINGS SECTION REGARDING RISKS ASSOCIATED WITH LONG TERM THERAPY.