Amantadine is used for preventing and treating certain types of flu. It is used to treat Parkinson disease and uncontrolled muscle movements caused by some medicines.

Generic Symmetrel is an antiviral. It is used to prevent or treat certain influenza (flu) infections (type A). It may be given alone or along with flu shots. Generic Symmetrel will not work for colds, other types of flu or other virus infections. This medicine is also used to treat Parkinson's disease and other movement disorders.