Flagyl (Metronidazole)

Name: Flagyl
Brand: Sanofi Aventis
SKU: 7020
Availability: InStock

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

Type:

Product: Flagyl Vaginal Cream (with applictor)

Manufacturer: Sanofi Aventis

Country: Canada

Dosage: 10 %/60 gm

Qty-Price (USD):

Generic Equivalent of Flagyl

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

Type:

Product: Metronidazole Tablet

Manufacturer: Generic

Country: Canada

Dosage: 250 mg

Qty-Price (USD):

Type:

Product: Metronidazole Capsule

Manufacturer: Generic

Country: Canada

Dosage: 500 mg

Qty-Price (USD):

Flagyl Information

medically reviewed by Dr. HaVy Ngo, Pharmacist on February 23, 2026.

Flagyl and Metronidazole at CanadaPharmacyOnline.com

The manufacturer of Flagyl is Sanofi-Aventis. Originally developed as a specialized antimicrobial, it is marketed globally under the same brand name. In Canada, Flagyl remains a primary brand-name choice for healthcare providers, while generic metronidazole is produced by several reputable manufacturers that meet Health Canada's strict safety and quality standards. Common generic producers include Apotex, Teva, and Sandoz.

Generic metronidazole is sourced from manufacturers that meet applicable regulatory standards, ensuring the medication is bioequivalent to the brand-name version. This means it contains the same active medicinal ingredient and is expected to provide identical clinical results. The specific manufacturer of your dispensed medication may vary based on pharmacy inventory.

Important Information about Generic Metronidazole

Generic metronidazole contains the same active ingredient as brand-name Flagyl. It must meet the same effectiveness and quality standards. This means it is designed to work like Flagyl. Studies have shown that generic metronidazole is bioequivalent to brand-name Flagyl, meaning it has similar absorption and achieves comparable blood concentrations. However, individual responses to medication can vary due to factors such as metabolism, genetics, and other health conditions.

For more information about generic drug approval and bioequivalence, please visit Access to Generic Drugs in Canada | Canada.ca.

Dosage:

Flagyl (metronidazole) is available in several oral strengths and forms:
• Tablets: 250 mg and 500 mg.
• Vaginal Cream with applicator: 10% in a 60 gm tube

Your doctor will determine the appropriate dose and duration based on the type and severity of the infection.

Usage:

Flagyl is a versatile antimicrobial medication used to treat a wide range of infections caused by specific bacteria and parasites (protozoa). It is frequently prescribed for gastrointestinal infections, such as those caused by Giardia or C. diff, as well as for pelvic inflammatory disease or bacterial vaginosis. It is also an effective treatment for certain skin, bone, and joint infections, as well as respiratory tract infections. Additionally, it is often used as a preventative measure (prophylaxis) before certain types of surgery. Because it targets anaerobic bacteria and parasites, it will not work for viral infections like the common cold or the flu. Completing the entire course of treatment is vital to ensure the infection is fully eradicated and to prevent the development of antibiotic resistance.

Mechanism of Action
Metronidazole, the active component in Flagyl, works by directly attacking the DNA of the invading organism. It is a "prodrug" that is relatively inactive until it enters the bacterial or parasitic cell. Once inside, the drug interacts with the organism's internal proteins, forming highly reactive "free radicals." These radicals act like microscopic guided missiles, binding to the DNA strands of the bacteria or parasite and causing them to break apart. This catastrophic damage prevents the organism from replicating or repairing its genetic material, leading to rapid cell death. Because this activation process primarily occurs in environments without oxygen (anaerobic), the drug specifically targets harmful pathogens while sparing many beneficial aerobic bacteria in the body.

Take Flagyl exactly as your doctor prescribes. It is usually recommended to take this medication with food or a glass of milk to help prevent stomach upset.

The information below summarizes some, but not all, potential side effects, risks, and interactions. Before starting Flagyl, it is essential to discuss all possible side effects, risks, and interactions with your doctor or pharmacist.

Side Effects:

The information below outlines potential side effects of Flagyl (metronidazole). It is not an exhaustive list, and individual reactions can vary.

Common side effects: These are common side effects of Flagyl; other side effects are possible. Contact your doctor promptly if any side effects are persistent, worsening, or concerning, or if you experience any other concerning symptoms.
• Darkened urine (this is harmless)
• Headache or dizziness
• Loss of appetite
• Metallic taste in the mouth
• Nausea or stomach cramps

Serious Side Effects: Seek immediate medical attention or call emergency services if you experience any of the following symptoms:
• Anaphylaxis: Severe allergic reaction involving swelling of the face, tongue, or throat, and difficulty breathing.
• C. diff-associated Diarrhea: Severe, watery, or bloody diarrhea with fever.
• Encephalopathy: Confusion, fever, or difficulty walking.
• Neurological Issues: Numbness, tingling, or "pins and needles" in the hands or feet (peripheral neuropathy), or seizures.
• Severe Skin Reaction: A red or purple skin rash that blisters and peels (Stevens-Johnson Syndrome).

Contraindications:

The following is not an exhaustive list of contraindications. Before starting Flagyl, it is crucial to discuss all your medical conditions, past and present, and all medications you are taking with your doctor or pharmacist.

Do not take Flagyl/metronidazole if:
• Alcohol Consumption: You must not drink alcohol or use products containing propylene glycol while taking Flagyl and for at least 3 days after your last dose (see below).
• Allergies: You have a known hypersensitivity to metronidazole or other nitroimidazole derivatives.
• First Trimester: If you are in the first three months of pregnancy and have trichomoniasis.

Tell your doctor about all of your medical conditions, past and present, before starting Flagyl. This is crucial as certain conditions affect the drug's safety.
• Blood Disorders: Tell your doctor if you have a history of blood cell disorders (like anemia).
• Liver Disease: You may need a lower dose if your liver is not clearing the medication normally.
• Nervous System Disorders: Especially conditions involving the brain or spinal cord.

Drug Interactions:

Before taking Flagyl, discuss all potential risks and interactions with your doctor or pharmacist. For complete and up-to-date information, please visit the product monograph at https://pdf.hres.ca/dpd_pm/00040051.PDF.

Provide your doctor with a complete list of all your medications, including prescriptions, over-the-counter (OTC) drugs, vitamins, herbal supplements, recreational drugs, and any significant dietary changes, as these may interact with Flagyl. Flagyl may interact with other medicines, including but not limited to:
• Alcohol (Disulfiram-like reaction): Drinking alcohol while on Flagyl causes severe nausea, vomiting, flushing, and a racing heart.
• Lithium: It can increase lithium levels in the blood to toxic levels.
• Phenobarbital or Phenytoin: These seizure medications can speed up the removal of Flagyl from your body.
• Warfarin: Flagyl can increase the blood-thinning effect of warfarin, increasing the risk of bleeding.

Pregnancy and Breastfeeding:

Flagyl is generally avoided during the first trimester of pregnancy. During the second and third trimesters, it should only be used if clearly needed. Metronidazole passes into breast milk. Your doctor may advise you to stop breastfeeding for 12 to 24 hours after a large dose to protect the infant. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding.

Use in Children:

Flagyl is used in pediatric patients for specific infections. The doctor carefully calculates the dose based on the child's weight and the specific condition being treated.

Frequently Asked Questions about Flagyl at Canada Pharmacy Online

Why is Flagyl more affordable in Canada than in the United States?

Prescription drug prices, including Flagyl, are generally lower in Canada than in the US due to a combination of factors, primarily government price regulations, differing market dynamics, and other economic considerations. In Canada, provincial and federal governments negotiate drug prices with pharmaceutical companies, which often results in lower prices than in the US, where market forces play a more significant role. For more information, see the FAQs on Prescription Drug Importation from the Kaiser Family Foundation (KFF): https://www.kff.org/health-costs/issue-brief/faqs-on-prescription-drug-importation/

How much is the shipping?

Our shipping fee is a flat rate of $10.00 per order. Our pharmacy is dedicated to offering you the lowest prices on high-quality products.

How do I place an order with your pharmacy?

Ordering from us is very simple. You can purchase online or call Customer Service at 1866.920.3784; for more information or to learn about the ordering process, visit our How to Order page.

Is there a limit on how many Flagyl I can order at once?

CanadaPharmacyOnline.com can dispense up to a three-month supply of Flagyl per prescription from your doctor.

Can I buy Flagyl from you over the counter?

No, Flagyl requires a valid prescription from your doctor. We do not sell this product without a valid prescription.

Do you ship to the United States?

Yes, we do. It usually takes between 7 and 18 business days to receive your order from our pharmacy.

Is there a generic for Flagyl?

Yes, there is a generic alternative to Flagyl: metronidazole.

Blog Post:

Top 10 Things You Can Do to Improve Your Microbiome

Latest News:

WHO warns of widespread resistance to common antibiotics worldwide (article published on October 13, 2025)

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The information on this page is sourced from independent third parties contracted by CanadaPharmacyOnline. While we cannot guarantee its medical accuracy, we strongly recommend consulting a healthcare professional for personalized advice regarding medications or medical conditions.

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