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BENZAMYCIN vs FLAGYL I.V.

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 7, 2026·How we rate

Possible drug interaction. BENZAMYCIN and FLAGYL I.V. are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Rating

74/100
60/100

Pharmacy pays

$0.05 /g
$0.10 /g

Type

RX
RX

Active ingredient

BENZOYL PEROXIDE AND ERYTHROMYCIN
METRONIDAZOLE AND METRONIDAZOLE HYDROCHLORIDE

Dosage forms

Kit
Injectable

Drug class

—
—

Boxed warning

None
None

Half-life

—
about 8 hours

Frequently asked questions

Which is better-rated, Benzamycin or Flagyl I.V.?

By our independent rating, Benzamycin scores higher — 3.7 vs 3.0 out of 5 for Flagyl I.V.. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Benzamycin or Flagyl I.V.?

Benzamycin costs pharmacies less to acquire — about $0.05 vs $0.10 per gm, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Benzamycin and Flagyl I.V.?

Benzamycin contains Benzoyl Peroxide and Erythromycin, while Flagyl I.V. contains Metronidazole and Metronidazole Hydrochloride — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.