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.

Monurol (Fosfomycin)


Monurol (Fosfomycin)

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  • Product Details


    Monurol is an antibacterial medication that is used to treat a variety of medications, including:

    • Prostatitis
    • Urinary tract infection

    Your doctor may prescribe this medication if you have taken other antibacterial medications which have not been effective.

    Monurol is a phosphonic acid derivative that works by preventing the formation of bacterial cell walls. By preventing the formation of a cell wall, Monurol stops bacteria from growing and treats infections.


    Monurol is available as a 3 g packet.

    The Monurol dosage varies based on the type of infection being treated:

    • Prostatitis: Take 3 g by mouth every 2-3 days OR take 3 g once daily for one week and then 3 g once every 48 hours.
    • Urinary tract infection: Take 3 g by mouth once


    The active ingredient in Monurol is fosfomycin.


    Come drug-drug interactions with Monurol may include:

    • BCG
    • BCG vaccine
    • Cholera vaccine
    • Gastrointestinal agents
    • Lactobacillus and estriol
    • Sodium picosulfate
    • Typhoid vaccine

    Tell your doctor and pharmacist about all the medications you are taking before you start Monurol, including over-the-counter (OTCs), herbals, and supplements.


    Tell your doctor if you have a history of liver problems before you start taking Monurol.

    Tell your doctor if you have a history of kidney problems before you start taking Monurol. The dose may need to be adjusted based on your kidney function.

    Do not take Monurol for longer than prescribed by your doctor, or an additional infection could result.

    Side Effects

    Common adverse reactions to Monurol may include:

    • Abdominal pain
    • Back pain
    • Diarrhea
    • Dizziness
    • Dysmenorrhea
    • Dyspepsia
    • Headache
    • Nausea
    • Pain
    • Pharyngitis
    • Rhinitis
    • Skin rash
    • Vaginitis
    • Weakness

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    Monurol [package insert]. St. Louis, MO: Forest Pharmaceuticals; 1993.

    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 : 9847

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