Usual Dose & Administration
Usual Adult Dose, Macrobid capsules
100 mg PO q12h for 5 days
Usual Adult Dose, microcrystals, prophylaxis
50-100 mg qhs
Usual Adult Dose, Suspension 25 mg/ 5mL
100 mg PO q 6hr
Adjustment of Dose & Administration
Renal Adjustment
Should not be used when creatinine clearance < 30 mL/min
Drug-Specific Information
Administer with food
Not recommended for pyelonephritis or for use in pregnant women
General Notes
- Up-to-date cost information, click here
- IV antimicrobials outpatient (OPAT) dosing, click here
- Obesity dosing weight recommendations here
- Helpful drug-drug interaction check website here
- When dosing guidance is provided it is important to note the following:
Fixed (ie non weight-based) doses in adults are historically based on a 70 kg patient. Specific disease states or individual patients may warrant dosages that differ from the above recommendations. Since product-specific criteria for dose adjustment based on creatinine clearance exist, consult product information regarding specific recommendations for dosage adjustment based on estimated creatinine clearance.