Amantadine drug has the following effects: 1. Amantadine can treat influenza. It has an effect on influenza A virus, so it can be used to prevent or treat respiratory tract infections caused by influenza A virus. However, it should be noted that amantadine has an effect on influenza A virus, while common cold is more common with rhinovirus infection, so it should not be used as a common drug; 2, amantadine can be used for Parkinson’s disease, Parkinson’s disease syndrome, drug-induced extrapyramidal reactions, such reactions are mainly due to the lack of dopamine in the brain, resulting in acetylcholine hyperactivity. Amantadine can promote the synthesis and release of dopamine in the brain, which can reduce the reuptake function of dopamine by nerve cells and can resist acetylcholine action.