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.

Panacur (Fenbendazole)


Panacur (Fenbendazole)

Prescription Required

22.2% for Dogs  222mg

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  • Product Details


    Panacur C (fenbendazole) is used to treat Roundworms, Hookworms, Whipworms, and Tapeworms in dogs. 

    Fact Table




    US DailyMed



    Legal status


    Chemical Name


    Elimination half-life

    15 hours

    Dosage (Strength)

    22.2% for Dogs 222mg





    Protein binding


    PubChem CID






    ATC code






    Routes of administration

    By mouth


    Panacur C is available in 1 gram, 2 gram, and 4 gram packets. The packets should be stored at room temperature.

    Follow the instructions that come with your dog's prescription. If you have any questions or concerns, talk to your veterinarian. 

    Talk to your veterinarian about your dog's dose and deworming schedule.

    Daily dose:

    50 mg per kg (22.7 mg per pound) of your dog's body weight. 

    The table below can help you determine the right dose for your dog.

    Dog Weight

    Packet Size

    10 pounds

    1 gram

    20 pounds

    2 gram

    30 pounds

    1 gram + 2 gram

    40 pounds

    4 gram

    50 pounds

    1 gram + 4 gram

    60 pounds

    2 gram + 4 gram

    80 pounds

    Two 4 gram

    More than 80 pounds

    Use combinations to achieve the suggested daily dose

    The daily dose is the packet size. Mix the packet(s) with your dog's food. Treat your dog for 3 consecutive days.


    Fenbendazole granules are contained in each packet of Panacur C.


    • Panacur C is for dogs only. Keep away from children and other pets.

    Side Effects

    Panacur C may cause vomiting. If your dog develops side effects that concern you or won't go away, contact your veterinarian immediately. 


    Panacur C Product Label. Summit, NJ: Intervet Inc d/b/aMerck Animal Health.

    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 your pet. See your veterinarian for medical advice and treatment for your pet if you have any concerns.

    Product Code : 9559

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