Metronidazole is a common antibiotic that fights anaerobic bacteria and certain parasites. You've probably heard it called Flagyl in some countries. It works well for things like bacterial vaginosis, certain stomach and dental infections, trichomoniasis, and giardiasis. This page gives clear, practical facts you can use now.
Metronidazole comes in tablets, IV form, and topical gels. Doses depend on the infection. A few typical examples:
- Bacterial vaginosis: 500 mg twice a day for 7 days (oral).
- Trichomoniasis: single 2 g dose or 500 mg twice daily for 7 days.
- Giardiasis: 250–750 mg three times daily for 5–7 days.
- Anaerobic infections (dental, abdominal, pelvic): often 500 mg every 8 hours; IV may be used for severe cases.
These are common regimens, not your personal prescription. Always follow the dose and length your doctor gives you. Stopping early can let the infection come back or become harder to treat.
Side effects are usually mild: nausea, metallic taste, mild stomach upset, and sometimes headache. If you take metronidazole for a long time or at high doses, there's a risk of nerve damage (tingling or numbness). If that happens, contact your prescriber right away.
A major safety point: avoid alcohol while taking metronidazole and for at least 48 hours after the last dose. Mixing can cause flushing, nausea, vomiting, and rapid heart rate. Also tell your doctor if you take blood thinners like warfarin — metronidazole can boost their effect and raise bleeding risk.
Pregnancy and breast-feeding: many doctors prescribe metronidazole when needed, but always check with your provider before taking it during pregnancy or while breastfeeding.
Want to buy metronidazole online? Do this:
- Use a licensed online pharmacy that asks for a valid prescription.
- Look for clear contact info, a licensed pharmacist, and secure site (https).
- Avoid sites selling prescription meds without a prescription or selling extremely cheap fake products.
- Check reviews from real users and verify the pharmacy’s registration in its country.
Storage: keep tablets at room temperature away from moisture. Finish the full course unless your doctor tells you otherwise.
If you’re unsure whether metronidazole fits your problem, call a clinician or pharmacist. They’ll match the dose and duration to your condition and help you avoid problems like interactions or unnecessary use.
Explore 10 alternatives to Flagyl in 2025, each with its own set of pros and cons. This guide seeks to help you understand the different options available for treating bacterial and parasitic infections. Learn how each alternative might fit your specific health needs. Get the lowdown on side effects, usage scenarios, and other considerations. Make informed decisions on your treatment journey.
