What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Xofluza (Baloxavir marboxil)


Xofluza (Baloxavir marboxil)

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  • Product Details


    Xofluza (baloxavir marboxil) is a medication used to treat influenza in adult patients who have had symptoms for less than 48 hours. Influenza symptoms include fever, chills, muscle ache, cough, congestion, sore throat, and fatigue. Xofluza works to shorten the infection duration by disrupting the replication process of the flu virus. You can buy Xofluza online as a 20mg or 40mg tablet. Store your Xofluza tablets in their original packaging at room temperature.


    • Xofluza should be used within 48 hours of noticing symptoms of influenza
    • Take Xofluza without regard to meals.
    • Avoid taking Xofluza at the same time as dairy products or antacids that contain calcium, iron, magnesium, zinc, or selenium.
    • Your dose of Xofluza depends on your weight:
      • 40-80kg - Take two 20mg tablets by mouth as a single dose.
      • 80kg or greater - Take two 40mg tablets by mouth as a single dose.


    The active ingredient in Xofluza is baloxavir marboxil. See the package insert for a complete list of ingredients.

    Fact Table






    Tmax: 4h

    Legal status

    RX Only

    Chemical Name

    Baloxavir Marboxil

    Elimination half-life

    79.1 hours

    Dosage (Strength)

    20mg (2 tablets), 40mg (2 tablets)


    Consult a doctor



    Protein binding

    92.9 - 93.9%

    PubChem CID






    ATC code






    Routes of administration

    By mouth


    • Xofluza is not intended to be a replacement for a seasonal flu shot.
    • Call your doctor if your symptoms do not improve or if they get worse.
    • Xofluza will not treat a bacterial infection.
    • Do not take Xofluza if you have a known allergy to any of the ingredients listed in the package insert.
    • Tell your healthcare provider if you are using Xofluza before getting a flu shot.
    • If you are pregnant or intend to become pregnant, discuss the risks of Xofluza with your physician.

    Side Effects

    Side effects of Xofluza include:

    • Diarrhea
    • Nausea
    • Headache
    • Bronchitis
    • Sinusitis

    Other Considerations

    Compare the cost of Xofluza at Canada Pharmacy to your local drug store.

    Frequently Asked Questions about Xofluza (Baloxavir marboxil)

    What is Xofluza (Baloxavir marboxil)?

    Xofluza (Baloxavir marboxil) is an antiviral medication used to treat influenza (flu) in patients who have had flu symptoms for no more than 48 hours.

    How does Xofluza work?

    Xofluza works by inhibiting the activity of an enzyme essential for the replication of the influenza virus, thereby preventing the virus from multiplying in the body.

    Who can take Xofluza?

    Xofluza is approved for use in individuals 12 years of age and older who have been symptomatic for no more than 48 hours.

    How is Xofluza administered?

    Xofluza is taken as a single oral dose. The exact dosage will depend on the patient's weight and the prescribing doctor's recommendations.

    Are there any side effects associated with Xofluza?

    Common side effects may include diarrhea, bronchitis, common cold symptoms, headache, and nausea. Always consult with a healthcare professional about potential side effects.

    Can I take Xofluza if I'm pregnant or breastfeeding?

    If you are pregnant, planning to become pregnant, or breastfeeding, consult with your healthcare provider before taking Xofluza.

    How quickly does Xofluza work?

    Xofluza starts working soon after it's taken, but it's essential to take it within 48 hours of the onset of flu symptoms for maximum effectiveness.

    Can I take Xofluza with other medications?

    Always inform your healthcare provider about all the medications you are taking, including over-the-counter drugs, to ensure there are no interactions.

    What should I do if I miss a dose or take an overdose?

    Since Xofluza is a single-dose treatment, missing a dose is unlikely. If you suspect an overdose, seek medical attention immediately.

    Is Xofluza a replacement for the flu vaccine?

    No, Xofluza is a treatment for the flu. It is not a substitute for the annual flu vaccine. It's always recommended to get vaccinated to prevent the flu.

    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 13251

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