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.
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Even though you have taken 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.
Chemical Name AMANTADINE (a-MAN-ta-deen)
It is not recommended that you take amantadine if you have experienced:
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
• Swelling of the hands, feet or lower legs
• Dizziness or lightheadedness
Older adults taking amantadine may experience:
• Dry mouth
• Swelling of the feet or legs,
Common side effects of amantadine include:
• Loss of appetite
• 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.