851 Pill — WHITE OVAL, 17mm — Metronidazole
| Imprint | 851 |
|---|---|
| Colour | WHITE |
| Shape | OVAL |
| Size | 17 |
| Strength | METRONIDAZOLE 500 mg |
| Dosage form | Tablet |
| Manufacturer | Cadila Healthcare Limited |
| NDC | 70771-1046 |
| Schedule | — |
| Availability | Prescription only |
| Ingredients | METRONIDAZOLE[METRONIDAZOLE] |
What does this imprint mean?
The imprint "851" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.
Active ingredient
Metronidazole
Uses and warnings
BOXED WARNING: "Metronidazole has been shown to be carcinogenic in mice and rats" in long-term studies, and unnecessary use of the drug should be avoided. Contraindicated with known hypersensitivity to metronidazole or other nitroimidazole derivatives, in the first trimester of pregnancy for trichomoniasis, and with concurrent or recent (within 2 weeks) disulfiram use or alcohol/propylene-glycol-containing products due to disulfiram-like reactions. Also contraindicated in patients with Cockayne syndrome due to reports of severe hepatotoxicity/acute liver failure. Other warnings cover CNS effects (seizures, peripheral and optic neuropathy, encephalopathy) and severe cutaneous adverse reactions (SJS, TEN, DRESS).
Metronidazole tablets treat "trichomoniasis" (symptomatic and asymptomatic, including in male partners), "amebiasis" (intestinal disease and liver abscess), and serious infections caused by susceptible anaerobic bacteria involving the intra-abdominal cavity, skin and skin structure, gynecologic tract, central nervous system, lower respiratory tract, bone and joint, and endocarditis. The label stresses it should be used "only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria."
How to identify this pill
- • Check the imprint matches exactly: "851".
- • Confirm the colour (WHITE) and shape (OVAL).
- • Compare the size (17) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
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Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 41fb09f7-e93f-4055-954f-0ea95f0d9fa0.xml