Flagyl 400mg Tablet contains Metronidazole 400mg, an antimicrobial medicine belonging to the nitroimidazole class.

Metronidazole is active against susceptible anaerobic bacteria and certain protozoa. After entering susceptible microorganisms, metronidazole undergoes reduction that produces reactive metabolites capable of damaging microbial DNA. This interferes with DNA synthesis and ultimately results in the death of susceptible microorganisms.

Flagyl should be used only for infections for which metronidazole is an appropriate treatment. It is not a general-purpose antibiotic and does not treat viral infections such as the common cold or influenza.

Product Information

Uses of Flagyl 400mg

Metronidazole may be prescribed for selected infections caused by susceptible anaerobic bacteria or protozoa.

Depending on the clinical situation, it may be used for certain:

• Anaerobic bacterial infections
• Intra-abdominal infections
• Pelvic infections
• Dental and oral infections involving susceptible anaerobic bacteria
• Certain gynecological infections
• Trichomoniasis
• Giardiasis
• Amoebiasis
• Other susceptible anaerobic or protozoal infections

The appropriate treatment depends on the specific diagnosis, causative organism, infection site, severity, and patient-specific factors.

Important

Flagyl does not treat viral infections such as:

• Common cold
• Influenza
• Most viral respiratory infections

How Metronidazole Works

Metronidazole is a nitroimidazole antimicrobial.

In susceptible anaerobic microorganisms and protozoa, the drug is reduced to reactive metabolites. These metabolites interact with and damage microbial DNA.

This disrupts DNA synthesis and causes loss of microbial viability.

Flagyl 400mg Dosage

The appropriate metronidazole dose depends on:

• Type of infection
• Severity and location of infection
• Causative microorganism
• Patient age
• Body weight
• Liver function
• Other medicines being used

The 400mg strength does not by itself determine the dosing frequency or treatment duration.

Take Flagyl exactly as prescribed by your healthcare professional. Do not change the dose or treatment duration without medical advice.

Important

Different infections require different metronidazole regimens. A 400mg tablet should therefore not be presented as a universal dose for all conditions.

How to Take Flagyl 400mg

• Take the tablet exactly as prescribed.
• Swallow it with water.
• It may generally be taken with food if it causes stomach discomfort.
• Take doses at the intervals specified by your prescription.
• Complete the prescribed course unless your healthcare professional instructs you otherwise.
• Do not share antimicrobial medicines with another person.

Alcohol Warning

Avoid alcohol while taking metronidazole and for at least 48 hours after the final dose.

Combining metronidazole with alcohol may cause unpleasant reactions such as:

• Nausea
• Vomiting
• Abdominal cramps
• Flushing
• Headache
• Rapid heartbeat

This warning also applies to products containing alcohol or propylene glycol where relevant.