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.

Symmetrel (Amantadine)


Symmetrel (Amantadine)

Prescription Required


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Generic Equivalent - Symmetrel (Amantadine)

Prescription Required


You'll have option to make 4 interest-free payments by credit card once your order is confirmed using Sezzle

  • Product Details


    What is the drug Amantadine for?

    Amantadine Online

    As an antiviral medicine, Amantadine is used to treat or prevent influenza A in both adults and children. It is also used to treat Parkinson's disease and similar symptoms, including tremors or shaking, stiffness, or repetitive uncontrolled muscle movements caused by certain medications.


    Even though you have taken been prescribed and buy Amantadine, you should still get the flu shot annually to help protect against the flu.

    Amantadine may not be effective during every season as flu viruses can vary.

    Amantadine dosage information:

    If you have received a nasal flu vaccine within the last 14 days, you should not use amantadine. Additionally, do not opt to receive a nasal flu vaccine for 48 hours following Amantadine.

    Amantadine is a prescription medication and should be taken according to the directions on the label.

    When taking amantadine to treat flu symptoms, be sure to take your dosage 24 to 48 hours after the initial symptoms appear. Take Amantadine for the length of time it has been prescribed, even if your symptoms have subsided.

    Amantadine can be taken with or without food. Extended released Amantadine capsules should not be broken, crushed or chewed. Extended released capsules should be swallowed whole.

    For Parkinson's disease, do not stop taking amantadine if your condition worsens. Stopping your medications may increase your chances of experiencing withdrawal symptoms. Talk to your doctor about how to safely stop using Amantadine.


    The active chemical in Amantadine is Amantadine.


    It is not recommended that you take amantadine if you have experienced:

    • Fluid retention
    • Congestive heart failure
    • Seizures
    • Liver or kidney disease
    • Alcoholism or drug addiction
    • Glaucoma
    • Eczema
    • Low blood pressure, fainting spells
    • Daytime drowsiness
    • Mental illness, including suicidal thoughts and instances of psychosis

    Do not administer amantadine to children younger than 1 year old. The effects of amantadine in breastmilk are unknown. You should not breastfeed if you are using amantadine.

    Fact Table




    EU EMA



    Legal status

    RX Only

    Chemical Name


    Elimination half-life

    10-31 hours

    Dosage (Strength)



    Consult a doctor


    Gocovri, Symadine, Symmetrel

    Protein binding


    PubChem CID






    ATC code






    Routes of administration

    By mouth

    Side Effects

    Side effects associated with amantadine are generally mild and, when they do occur, often cease after a week or more of taking the medication. Amantadine may cause some unwanted, and unusual side effects including increased sexual urges, urges to gamble or other unusual, intense urges. Talk to your doctor if these occur.

    Additionally, if you experience any of the following symptoms when taking amantadine, contact your doctor immediately:

    • Bloody or cloudy urine
    • Difficulty, burning or painful urination
    • Bladder pain
    • Frequent urge to urinate
    • Confusion
    • Swelling of the hands, feet or lower legs
    • Hallucinations
    • Dizziness or lightheadedness
    • Fainting

    Older adults taking amantadine may experience:

    • Dry mouth
    • Swelling of the feet or legs,
    • Dizziness
    • Constipation
    • Nausea
    • Insomnia

    Common side effects of amantadine include:

    • Headaches
    • Nausea
    • Irritability
    • Loss of appetite
    • Insomnia
    • Anxiety
    • Difficulty concentrating

    Find out More About Amantadine Side Effects

    You should seek emergency medical attention if you encounter signs of an allergic reaction which can include hives, difficulty breathing, or swelling of the face, lips, tongue or throat.

    If when taking amantadine you notice that you are experiencing extreme drowsiness, lightheadedness, shortness of breath, difficult or painful urination, changes to your mental health (including signs of depression or aggression), severe nervous system reactions (stiff, rigid muscles, sweating, high fever, confusion) seek emergency medical attention.

    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 : 1333

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