About ornidazole
Nitroimidazole antimicrobial
Used for
- Treats certain protozoal infections, including trichomoniasis, amoebiasis, and giardiasis.
- Treats infections caused by susceptible anaerobic bacteria.
Usual adult dose
Often 500 mg twice daily for 5–10 days; dose and duration depend on infection.
Usual dose in children
For selected infections, commonly 25–40 mg/kg daily; dose and duration depend on infection.
Common side effects
- Nausea, vomiting, or stomach discomfort
- Headache or dizziness
- Metallic taste
- Rarely, numbness or tingling
Important warnings
- Avoid alcohol during treatment and for at least three days afterward.
- Use caution with liver disease or nervous system disorders.
- Seek medical assessment for severe rash, numbness, or coordination problems.
Pregnancy
Use only when clearly needed; safety information is limited, especially early in pregnancy.
Breastfeeding
Small amounts may pass into breast milk; clinical guidance may be needed during treatment.
Interactions
- Warfarin and other oral anticoagulants: may increase bleeding risk.
- Alcohol: may cause an unpleasant reaction.
- Medicines affecting liver enzymes may alter ornidazole levels.
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 It may be incomplete or out of date.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.