Flagyl
✅ Treats bacterial infections
✅ Effective against parasites
✅ Reduces infection symptoms
✅ Promotes gut health
✅ Prevents surgical infections
✓ Medically reviewed by Morgan Ellis — Pharmacy Researcher · 8 years experience · Last reviewed: May 2026
⚡ Quick Answer — What is Flagyl?
Flagyl is the original metronidazole tablet (Pfizer) for bacterial vaginosis, trichomoniasis, anaerobic infections, dental abscess, and giardiasis. Avoid alcohol during course and 48 hours after. Manufactured under WHO-GMP standards.
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Flagyl Tablet helps prevent an infection after surgery. It is also used in the treatment of dental infections, leg ulcers, and pressure sores. This medicine is best taken after eating some food. It should be taken at the same time each day to get the most benefit. The amount you are advised will depend on what you are being treated for and how bad it is, but you should take this antibiotic exactly as prescribed by your doctor. Your symptoms may get better after a short time but do not stop taking it until you have finished a full course of treatment, even if you feel well. If you stop taking it early, some bacteria may survive, and the infection may come back. Do not drink alcohol while taking this medicine and for a few days after stopping it. Otherwise, you may get unpleasant side effects like nausea, vomiting, and stomach pain.
The most common side effects of this medicine are headache, dryness in the mouth, nausea, and a slight metallic taste in the mouth. These are usually mild but let your doctor know if they bother you or last more than a few days. You can try using sugarless candies or lozenges to overcome any dryness or metallic taste in the mouth.
Before using this medicine, inform your doctor if you are allergic to any medicine or have any kidney or liver problems or any disease of the nervous system. If you are pregnant or breastfeeding, inform your doctor before taking this medicine.
USES OF FLAGYL TABLET
- Bacterial infections
- Parasitic infections
BENEFITS OF FLAGYL TABLET
In Bacterial infections
This medicine usually makes you feel better quite quickly. However, you should continue taking it as long as it is prescribed even when you feel better, to make sure that all bacteria are killed and do not become resistant. This medicine is generally safe to use while pregnant or breastfeeding, but you should ask your doctor.
SIDE EFFECTS OF FLAGYL TABLET
Common side effects of Flagyl
- Headache
- Dryness in mouth
- Nausea
- Metallic taste
HOW TO USE FLAGYL TABLET
Disclaimer:
Our sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover all possible side effects, drug interactions or warnings or alerts. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
Frequently Asked Questions
What does Flagyl treat?
Flagyl (metronidazole) is a nitroimidazole antibiotic effective against anaerobic bacteria and several protozoa. Common indications: bacterial vaginosis, trichomoniasis, giardiasis, amoebic dysentery, Helicobacter pylori eradication, dental infections, intra-abdominal and pelvic infections (with a gram-negative agent), and rosacea (topical).
Why must I avoid alcohol with Flagyl?
metronidazole causes a disulfiram-like reaction with alcohol (flushing, headache, palpitations, nausea, vomiting). Avoid all alcohol — including beer, wine, spirits, mouthwashes containing alcohol, cough syrups, and some sauces — during the course AND for at least 48 hours after the final dose. Read labels carefully.
How fast does Flagyl work?
Trichomoniasis and bacterial vaginosis often resolve with a single 2 g dose or a 5–7 day twice-daily course. Giardiasis and amoebic dysentery improve within 24–48 hours of starting. Always complete the full course; partial treatment promotes resistance and relapse.
What are the common side effects?
Metallic taste, nausea, mild headache, and dark-coloured urine are typical and harmless. Oral candidiasis (thrush) and abdominal cramps are sometimes reported. Long courses can rarely cause peripheral or optic neuropathy and cerebellar dysfunction — stop and seek help if you develop tingling, weakness, or coordination problems.
Is Flagyl safe in pregnancy?
metronidazole is generally avoided in the first trimester because of theoretical concerns from animal data. Second and third trimester use is considered acceptable when the indication is genuine (e.g. symptomatic bacterial vaginosis or trichomoniasis). Single high-dose regimens are usually deferred until after delivery in breastfeeding mothers; multi-day low-dose regimens are considered compatible.
What if I am also taking warfarin?
metronidazole significantly increases warfarin’s anticoagulant effect, raising INR and bleeding risk. The combination is not absolutely contraindicated but requires more frequent INR monitoring and possibly a temporary warfarin dose reduction. Always tell your prescriber if you take warfarin or any anticoagulant.
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Ranked by recent MedsBase order volume — what other customers in this category are picking.
| Strength | 200 mg, 400 mg |
|---|---|
| Quantity | 30 Tablet/s, 60 Tablet/s, 90 Tablet/s |
| Pharma Form | Tablet/s |
| Manufacturer | Abbott India |
| Treatment | Bacterial infections, Parasitic infections |
| Generic Brand | Metronidazole |
Flagyl
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