This anti-viral drug that has been used effectively for the treatment of viral infection is also very useful in treating Parkinson’s disease. It contains amantadine as one of its constituents. Symmetrel or Amantadine can be used alone or with other drugs that are anticholinergic in order to treat Parkinsonism symptoms and other neurological ailments such as movement lethargy, tremors, loss of body balance.
However, this synthetic anti-viral drug is mainly used to treat influenza. People suffering from an attack of influenza A virus respond well to Generic Symmetrel or Amantadine. They have reported relief from influenza within a couple of weeks of taking symmetrel.