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.

Gemtesa (Vibegron)


Gemtesa (Vibegron)

Prescription Required


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  • Product Details


    Gemtesa (vibegron) is a medication used to treat overactive bladder in adults who have symptoms of urge urinary incontinence, urgency, and urinary frequency.

    Fact Table




    US DailyMed



    Legal status


    Chemical Name


    Elimination half-life

    60 to 70 hours

    Dosage (Strength)



    Consult Doctor



    Protein binding

    49.6 to 51.3%

    PubChem CID






    ATC code






    Routes of administration

    By mouth


    Follow the instructions that come with your Gemtesa prescription. If you have any questions or concerns about your prescription, talk to your doctor or pharmacist.

    Gemtesa is available as a 75 mg tablet. The typical dose is to take one tablet by mouth once a day. The tablet should be swallowed with water. If you are unable to swallow the tablet whole, you may crush the tablet and mix it with applesauce.


    The active ingredient contained in Gemtesa is vibegron, a beta-3 adrenergic agonist.


    Do not take Gemtesa if you are allergic to vibegron or any of the other ingredients or excipients contained in Gemtesa.


    • Before you start treatment with Gemtesa, talk to your doctor:
      • About all the medications you take, including prescription, over-the-counter, vitamins, and herbal supplements. If you are taking digoxin, your digoxin levels should be monitored before starting Gemtesa.
      • About your allergies
      • About your health conditions
      • If you are pregnant or plan to become pregnant
      • If you are breastfeeding or plan to breastfeed 
    • Gemesa can cause urinary retention. Your risk may be greater if you have bladder outlet obstruction or if you are taking muscarinic antagonists for overactive bladder. If you are not sure whether or not you are taking a muscarinic antagonist, ask your doctor.
    • Treatment with Gemtesa is not recommended if you have end-stage kidney disease or severe liver problems

    Side Effects

    Like with any medication, Gemtesa can cause side effects. The most common include diarrhea, headache, nausea, nasopharyngitis, upper respiratory tract infection, and urinary tract infection. However, these are not all the possible side effects that may occur with Gemtesa. Contact your doctor right away if you develop side effects that are bothersome to you or won't go away.


    Gemtesa (vibegron) tablets, for oral use. Irvine, CA: Urovant Sciences, Inc.; 2020.

    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 : 13656

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