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Usual Dosing (Adults)

DOSAGE AND ADMINISTRATION:
Macrodantin should be given with food to improve drug absorption and, in some patients, tolerance.

Adults: 50-100 mg four times a day -- the lower dosage level is recommended for uncomplicated urinary tract infections.

Macrobid: 100 mg q12h.

Renal Dosing

dialysis [CRCL >60]: Normal dose.

[0 - 59]: Avoid use.

Hemodialysis

dialysis Contraindicated

Reference(s)

National Institutes of Health, U.S. National Library of Medicine, DailyMed Database.
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Nitrofurantoin