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Flagyl

Published: July 26, 2026Updated: July 26, 2026

Flagyl (metronidazole) is an antibiotic medication used to treat various bacterial and parasitic infections, including certain sexually transmitted infections, gastrointestinal infections, and skin conditions. It works by stopping the growth of bacteria and parasites, making it effective for conditions like bacterial vaginosis, trichomoniasis, amebic dysentery, and dental infections.

Quick summary

Flagyl is an antibiotic used to treat bacterial and parasitic infections affecting the reproductive system, digestive tract, and skin.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 2026Editorial policy

Key facts at a glance

RxNorm
202866
Generic
Flagyl
Class
brand-name
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Treats bacterial vaginosis, trichomoniasis, amebic dysentery, giardiasis, anaerobic bacterial infections, dental infections, and certain types of diarrhea. May also be used for rosacea and other skin conditions.

Metronidazole enters bacterial and parasitic cells and disrupts their DNA structure, preventing reproduction and causing cell death. It is particularly effective against anaerobic bacteria and certain parasites.

Avoid alcohol during treatment and for 48 hours after completing the course, as this can cause a severe reaction. May cause metallic taste, nausea, or dark urine. Inform your doctor if you are pregnant, have liver disease, or are taking blood thinners before starting this medication.

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy