Flagyl
Metronidazole 200mg and 400mg tablets, for the management of anaerobic bacterial and protozoal infections. A nitroimidazole antibiotic.
- Category
- Antibiotics
- Active ingredient
- Metronidazole
- Route
- Oral
- Form
- Tablet
- Strengths
- 200/400mg
You will receive a quality generic equivalent, depending on stock.
Shipped in a discreet, unmarked envelope.
Details
- Conditions
- Anaerobic bacterial infections · Protozoal infections
- Therapeutic Class
- Nitroimidazole Antibiotic
- Pharmacological Class
- Nitroimidazoles
- Minor Side Effects
- Metallic taste, Headache
- Moderate Side Effects
- Nausea, Dark urine
- Dosage Forms
- Tablet
- Administration Route
- Oral
- Originator
- Sanofi-Aventis
- Onset Time
- 1–2 hours
- Duration
- 8–12 hours
- Storage Instructions
- Store at room temperature away from light.
- Drug Interactions
- Alcohol, Warfarin
What you will receive
Flagyl is the originator brand name, made by Sanofi-Aventis. We use it to identify the medicine; the pack you receive is a generic equivalent, not the original Flagyl.
- The same active ingredient (Metronidazole) at the same strength.
- The exact brand supplied depends on what is in stock when your order ships.
FAQ
Which Flagyl strengths and pack sizes can I order?
Flagyl pages list 200mg and 400mg tablets in packs from 30 up to 360. You receive generic metronidazole, not the original Flagyl. Each page shows the price per tablet in Hong Kong dollars, and larger packs cost less per tablet.
How do I pay for Flagyl delivered to Hong Kong?
You can pay for Flagyl with Visa, Mastercard or American Express on a secure, encrypted payment page, or with Bitcoin or Ethereum. Card details never reach PockDose servers. Orders ship to Hong Kong in plain, unbranded packaging.
Can I drink alcohol while taking Flagyl?
No. Alcohol can trigger a disulfiram-like reaction with metronidazole, causing flushing, nausea, vomiting, and rapid heart rate. It should be avoided during treatment and for at least 24 hours after the last administration.
What should I do if I miss a scheduled administration of Flagyl?
Take the missed tablet as soon as you remember, unless it is close to the time of your next scheduled administration. In that case, skip the missed administration and continue with your regular dosing schedule-do not double up.
Is Flagyl appropriate for people with liver disease?
Flagyl is metabolized by the liver, so patients with moderate to severe hepatic impairment should use lower strengths and be monitored closely for signs of toxicity.
How long does it take for Flagyl to start working?
Metronidazole is rapidly absorbed, reaching peak blood levels within 1-2 hours.
What are the signs of a serious allergic reaction to Flagyl?
Severe reactions may include rash, itching, swelling of the face or throat, difficulty breathing, or anaphylaxis.
Why does Flagyl sometimes cause a metallic taste?
A metallic or bitter taste is a common, mild side effect caused by the drug’s interaction with taste receptors. It usually resolves after the treatment course ends.
Do I need to adjust the administration if I have kidney problems?
Patients with a creatinine clearance below 30 mL/min should limit the total daily regimen (typically not exceeding 1 g) and may require extended dosing intervals.
Is it necessary to take Flagyl with food?
Metronidazole can be taken with or without food. Taking it with a meal may reduce stomach upset, but food does not significantly affect its absorption.
How should I store my Flagyl tablets?
Store the tablets at room temperature, away from moisture, heat, and direct sunlight. Keep them in the original container with the lid tightly closed, and discard any tablets that are past their expiration date.
About Flagyl
What is Metronidazole?
Interacting directly with the DNA within specific microorganisms, metronidazole functions as a powerful synthetic nitroimidazole compound. This active ingredient is the primary component found in formulations such as Flagyl, widely utilized due to its capacity to inhibit the replication of anaerobic bacteria and certain protozoa. By disrupting the genetic structure of these pathogens, the substance limits their ability to survive and replicate within human tissues.
In the setting of clinical care in Hong Kong, this compound remains a standard choice for managing various infections originating from susceptible microorganisms. Pharmaceutical developers incorporate this API into diverse delivery systems to address systemic issues. Patients typically encounter this substance in tablet or liquid form, though specialized preparations also exist for topical application, depending on the nature of the infection being addressed.
Formulations and Clinical Products
Metronidazole serves as the core active agent in medications labelled as Flagyl and various generic equivalents available throughout Hong Kong pharmacy networks. These products are manufactured in several formats, including oral tablets, intravenous solutions, and topical creams or gels. While the underlying chemical structure remains identical across these options, the concentration and physical delivery method vary to ensure the active compound reaches the site of infection.
Therapeutic Applications
Clinical application of this substance focuses on addressing or suppressing infections triggered by anaerobic bacteria and specific parasites. Physicians often select this compound to assist with the following situations:
- Intra-abdominal infections involving anaerobic microorganisms.
- Gastrointestinal conditions caused by protozoal parasites.
- Skin and soft tissue infections where specific bacteria are identified.
- Pelvic infections in female patients requiring targeted antimicrobial support.
- Post-surgical prophylaxis to prevent infection in high-risk areas.
Biological Action
Once introduced into the body, the substance undergoes a reduction process inside the target cells. This chemical shift creates short-lived, highly reactive molecules that bind to the DNA of the bacteria or parasite. This interaction triggers damage to the pathogen’s genetic template, preventing it from producing the proteins necessary for life. Because human cells lack the specific systems required to activate this compound in the same way, the substance specifically targets the invasive microorganisms while largely bypassing healthy host tissues.
Risk Profile
Common Reactions
Patients may occasionally experience a metallic taste in the mouth, mild nausea, or headache during the course of the treatment. These responses are typically transient and resolve as the body adapts to the substance.
Serious Reactions
Immediate medical assessment is necessary if signs of persistent nerve-related symptoms, such as numbness or tingling in the extremities, occur. Likewise, any indications of severe skin rashes or neurological changes require prompt investigation.
Contraindications
Usage requires caution in individuals with known hypersensitivities to imidazole derivatives or those with specific blood-related or neurological conditions. Pregnant individuals or those managing chronic liver performance issues should disclose these factors prior to starting any treatment involving this API.
Interaction Awareness
Consuming alcohol or products containing propylene glycol while using this substance can trigger unpleasant physical reactions.
Usage Context and Considerations
The duration of use typically depends on the underlying infection and the severity of the symptoms, ranging from short, acute courses to longer periods as directed. Proper storage involves keeping the medication in a cool, dry environment away from direct light to maintain its chemical integrity. As formulations between different brands can vary slightly in their non-active components, patients should stay consistent with the specific variety provided by their pharmacist. For Flagyl-specific instructions, refer to the medication information supplied with the product.
Glossary
Nitroimidazole: A class of chemical compounds characterized by a five-membered ring structure that serves as the foundation for anti-infective activity.
Anaerobic: Describing microorganisms that possess the ability to survive and propagate in environments lacking oxygen.
Protozoa: A broad category of single-celled eukaryotic organisms which can act as parasites in the human body.
Prophylaxis: The systematic act of administering a substance to prevent the development of a potential condition or infection.
Sources
- Metronidazole: MedlinePlus Drug Information — National Library of Medicine
- Bacterial infections - symptoms, causes and treatments - Healthdirect — Healthdirect Australia