Filmet 400 is a potent prescription medication containing Metronidazole, a nitroimidazole antibiotic and antiprotozoal agent. It is widely used to treat a variety of infections caused by anaerobic bacteria and certain parasites. By interfering with the DNA of these microorganisms, it effectively inhibits their growth and spread. Produced by Beximco Pharmaceuticals Ltd., this updated guide provides the latest essential information for 2026.
What is Filmet 400 Used For?
Filmet 400 mg is primarily prescribed for the treatment and prevention of the following conditions:
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Anaerobic Bacterial Infections: Including infections of the abdomen (peritonitis), brain, lungs (pneumonia), and pelvic area.
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Parasitic Infections: Effective against Amoebiasis (intestinal and liver), Giardiasis, and Trichomoniasis.
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Dental Infections: Management of acute dental abscesses and ulcerative gingivitis.
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Post-Operative Prophylaxis: Used to prevent infections after surgical procedures, particularly in the gastrointestinal or gynecological tracts.
Critical Safety Note: Filmet 400 is an antibiotic and is not effective against viral infections like the common cold or flu. For a technical overview of its bactericidal mechanism, you can visit Metronidazole on DrugBank.
Dosage
The dosage of Filmet 400 depends strictly on the type and severity of the infection being treated. Standard adult protocols include:
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Amoebiasis: Usually 400 mg to 800 mg three times daily for 5–10 days.
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Trichomoniasis: Often a single 2g dose (5 tablets) or 400 mg twice daily for 7 days.
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Dental Infections: 200 mg to 400 mg three times daily for 3–7 days.
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Administration: It is highly recommended to take Filmet during or after a meal to minimize stomach upset.
Common Side Effects
While highly effective, Filmet 400 can cause some temporary side effects:
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Metallic Taste: A very common, harmless lingering taste in the mouth.
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Gastrointestinal Issues: Nausea, vomiting, diarrhea, or abdominal pain.
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Neurological: Headache, dizziness, or drowsiness.
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Urine Color: May cause a harmless darkening of the urine.
Important Warnings & Precautions
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Alcohol Restriction: You must avoid alcohol during treatment and for at least 48–72 hours after the last dose. Mixing the two causes a “disulfiram-like reaction,” resulting in severe nausea, vomiting, and flushing.
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Liver & Kidney Health: Dose adjustments may be necessary for patients with severe hepatic or renal impairment.
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Pregnancy: Generally avoided during the first trimester unless deemed absolutely essential by a specialist.
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Central Nervous System: Use with extreme caution in patients with active neurological disorders (like epilepsy).
Filmet 400 vs. Flagyl 400: Key Differences
While Filmet and Flagyl share the same active ingredient, understanding their availability is key for patients in Bangladesh.
| Feature | Filmet 400 (Beximco) | Flagyl 400 (Synovia/Sanofi) |
| Active Ingredient | Metronidazole | Metronidazole |
| Primary Use | Bacterial & Parasitic Infections | Bacterial & Parasitic Infections |
| Manufacturing | Local (Bangladesh) | Multinational Brand (Local Partner) |
| Absorption | High (Rapidly absorbed) | High (Rapidly absorbed) |
| Unit Price | ৳1.70 | ৳1.70 |
Filmet Tablet Price in Bangladesh (January 2026 Update)
The following prices are current for Filmet variants produced by Beximco Pharmaceuticals Ltd.
| Product Name | Strength | Unit Price (BDT) | Strip Price (10 Tablets) |
| Filmet 400 | 400 mg | ৳1.70 | ৳17.00 |
| Filmet 200 | 200 mg | ৳1.00 | ৳10.00 |
| Filmet DS | 800 mg | ৳2.01 | ৳20.10 |
| Filmet Suspension | 200mg/5ml | ৳35.00 (60ml) | N/A |
Filmet 400 Alternative Brands & Prices
Metronidazole is one of the most widely manufactured generics in Bangladesh. Below are the top alternatives available in 2026.
| Brand Name | Company Name | Price per Unit (BDT) |
| Amodis 400 | Square Pharmaceuticals | ৳1.70 |
| Metryl 400 | Opsonin Pharma | ৳1.70 |
| Flamyd 400 | Incepta Pharmaceuticals | ৳1.70 |
| Metro 400 | Ziska Pharmaceuticals | ৳1.70 |
| Metco 400 | Eskayef (SK+F) | ৳1.53 |
| Dirozyl 400 | The ACME Laboratories | ৳1.70 |
| Amogit 400 | Marksman Pharmaceuticals | ৳1.03 |
| G-Metronidazole | Gonoshasthaya Pharma | ৳1.50 |
| Biozyl 400 | Biopharma Limited | ৳1.70 |
| Klion 400 | Ambee Pharmaceuticals | ৳1.10 |
Frequently Asked Questions (FAQ) About Filmet 400
Q: What is the Filmet 400 mg price in Bangladesh?
As of January 2026, the retail price for Filmet 400 is ৳1.70 per tablet. A full strip containing 10 tablets typically costs ৳17.00.
Q: What is Filmet 400 used for?
It is primarily used to treat infections caused by anaerobic bacteria and parasites, including amoebiasis, giardiasis, trichomoniasis, and certain dental or abdominal infections.
Q: What are the common Filmet 400 side effects?
Common side effects include a metallic taste in the mouth, nausea, abdominal pain, diarrhea, headache, and a harmless darkening of urine.
Q: Is Filmet 400 safe during pregnancy?
Filmet 400 should generally be avoided during the first trimester. It may be used in later stages only if clearly needed and specifically prescribed by a doctor.
Q: Can I take Filmet 400 for a common cold?
No, Filmet 400 is an antibiotic/antiprotozoal and does not work against viral infections like the common cold, flu, or cough.
Q: Why must I avoid alcohol with Filmet 400?
Mixing alcohol with Metronidazole causes a severe reaction including intense vomiting, rapid heartbeat, and flushing. Avoid alcohol for 72 hours after your last dose.
Q: Is Filmet 400 effective for dental pain?
It helps with dental pain only if the pain is caused by a bacterial infection or abscess. It is often prescribed alongside painkillers for dental issues.
Q: What is the recommended Filmet 400 dose?
The standard adult dose varies by infection but is commonly 400 mg three times daily. Always follow the exact duration prescribed by your physician.
Q: Does Filmet 400 make you sleepy?
Some patients may experience dizziness or drowsiness. If you feel these effects, avoid driving or operating heavy machinery until the symptoms pass.
Disclaimer: This is educational information only (updated January 2026). Not a substitute for professional medical advice. Always consult a qualified physician before starting/stopping any medication.
