Pill identification — FDA label match
851 Pill — Metronidazole 500 mg (White, Oval)
A white oval tablet with the imprint 851 matches the FDA label for Metronidazole 500 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | 851 |
|---|---|
| Generic name | Metronidazole |
| Active ingredient(s) | Metronidazole 500 mg |
| Strength | 500 mg |
| Dosage form | Tablet |
| Colour | White |
| Shape | Oval |
| Size | 17 mm |
| Score | No score |
| Labeler | Remedyrepack Inc. |
| NDC examples | 70518-2663-0, 70518-2663-1, 70518-2663-2, 70518-2663-3, 70518-2663-4 … (9 package codes in total) |
What this medicine is
According to its FDA-approved label, Metronidazole is described as follows (reference information only — not advice about whether it is right for anyone):
Symptomatic Trichomoniasis. Metronidazole tablets, USP are indicated for the treatment of T. vaginalis infection in females and males when the presence of the trichomonad has been confirmed by appropriate laboratory procedures (wet smears and/or cultures). Asymptomatic Trichomoniasis. Metronidazole...
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Metronidazole 500 mg). Different makers stamp their own codes, so equivalent pills often look completely different. This is factual label information — it is not a suggestion to substitute one product for another; only a pharmacist or prescriber can advise on that.
Frequently asked questions
What pill has the imprint 851?
A white oval tablet with the imprint 851 matches the FDA label for Metronidazole 500 mg. Always compare the colour, shape and size as well — short imprints are shared by different medicines — and confirm with a pharmacist.
What does the 851 pill look like?
On its FDA label it is described as a white oval tablet, 17 mm, with a score recorded as: no score.
How can I be sure this identification is right?
Check every characteristic — imprint (both sides), colour, shape, size and score — against the pill in your hand. If all of them agree, the pill matches the FDA label shown here, but that is still not a guarantee: counterfeit pills copy real imprints. A pharmacist can confirm the identification in person, and you should never take a pill you are not certain about.
Browse: all pills with imprint 851 · Metronidazole — all forms & strengths · White pills · Oval pills
Source: FDA label data via DailyMed/openFDA · Label set ID d5784eeb-6b99-4e8a-847b-b0d1090ed48a · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.