About benzoyl metronidazole
Nitroimidazole antibacterial and antiprotozoal
Used for
- Treats susceptible anaerobic bacterial infections
- Treats amoebiasis and giardiasis
- Treats trichomoniasis
Usual adult dose
For many infections, 500 mg by mouth every 8 hours; dose and duration depend on infection.
Usual dose in children
For many infections, 7.5 mg/kg by mouth every 8 hours; dose and duration depend on infection.
Common side effects
- Nausea, vomiting, or diarrhea
- Metallic taste
- Headache or dizziness
- Dark urine
Important warnings
- Avoid alcohol during treatment and for at least 48 hours afterward.
- Seek urgent care for severe rash, numbness, seizures, or confusion.
- Use only for infections shown or strongly suspected to be susceptible.
- Doses vary by infection, age, and local guidance.
Pregnancy
Use when clinically needed; choice depends on infection and pregnancy stage. A healthcare professional should assess benefits and risks.
Breastfeeding
Small amounts enter breast milk. Short courses are generally compatible; prolonged or high-dose treatment may require special advice.
Interactions
- Warfarin and related blood thinners: may increase bleeding risk.
- Disulfiram: may cause mental or behavioral reactions.
- Lithium: levels may rise.
- Alcohol: may cause flushing, nausea, or vomiting.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.