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metroNIDAZOLE

metroNIDAZOLE

Brand names: Flagyl

Form	Strength
SOLUTION, INTRAVENOUS	250 mg/50 mL; 500 mg/100 mL
TABLET, ORAL	250 mg; 500 mg

Display Amebicides, Nitroimidazole Derivatives, Miscellaneous Class: 083004, 08301692

Medication comments:

Note: Per policy, metronidazole will have an automatic frequency change from q8h to q12h with the exception of Central Nervous System infections and C.difficile infections and bacteremia with B.fragilis. This applies to both IV and PO routes.

Note: use 10 day stop date for oral or IV metroNIDAZOLE given for C.diff infections.

Per policy, these drugs are subject to renal dosing adjustments by pharmacy.
Generic + Route (Brand) • Indications	Usual Adult Dose Comments	Renal Dosage Adjustments
metroNIDAZOLE IV/PO (Flagyl^©)	250-1,000 mg q12h Q8h for CNS infections, C. difficile infections, Bacteremia with B. fragilis	No adjustment necessary

Per policy, these drugs may be converted from IV to PO in patients who meet criteria.
Generic (Brand)	Population	IV Dose	PO Dose	Notes
metroNIDAZOLE (Flagyl)	adult	500 mg IV q8h	500 mg PO q8h
metroNIDAZOLE (Flagyl)	pediatric	10 mg/kg q6-8h (max: 500 mg/dose or 40 mg/kg/day) OR 30 mg/kg q24h (max: 1.5g/dose)	10 mg/kg q6-8h (max: 500 mg/dose or 50 mg/kg/day)

Last updated: Jun. 1, 2026

Renal Adjustment Policy metroNIDAZOLE subject to adjustments by pharmacy.
IV to PO Conversion Policy Policy
Black Box Warnings Carcinogenicity
Look-Alike/Sound-Alike metroNIDAZOLE confused with metFORMIN

UpToDate Lexidrug

Pharmacy Contact Info:

Main Inpatient Pharmacy: ext 4599, 3503
Fax: 704-878-7283

Director of Pharmacy - Randi Raynor, PharmD: ext 4501
Clinical Coordinator - Laura Rollings, PharmD: ext 4597
Pharmacy Informaticist - Stephen Pringle, PharmD: ext 7645
Pharmacy Technician Supervisor - Amy Wingler, CPhT: ext 7385
Pharmacy Automation Coordinator (Omnicell) - Melissa Fulford, CPhT: ext 3556

This site is intended for the staff of Iredell Health System. While others may view accessible pages, Iredell Health System makes no warranty, express or implied, as to the use of this information outside of Iredell Health System. The content of this policy and procedure document serves as guidance to the delivery of quality patient care. Care providers are expected to exercise critical thinking and situational awareness skills, and in specific situations to take such action as is necessary for the delivery of quality patient care.