Is amantadine normally prescribed for dementia?

Amantadine can also be used to treat ADHD and tardive dyskinesia. It took about a month but today my Tardive dyskinesia is better than it has ever been. My ankles are swollen as a side effect. Im going to stay on the medication. I'll get a med for edema. I'll do anything to get rid of TD

Amantadine is an antiviral medicine that blocks the actions of viruses in your body.

Amantadine is used to treat Parkinson's disease and "Parkinson-like" symptoms such as stiffness or tremors, shaking, and repetitive uncontrolled muscle movements that may be caused by the use of certain drugs.

Amantadine is also used to treat or prevent influenza A in adults and children. It may not be effective during every flu season because certain strains of the virus may be resistant to amantadine. This medicine should not be used in place of getting a yearly flu shot. The Centers for Disease Control recommends an annual flu shot to help protect you each year from new strains of influenza virus.

Amantadine is available as tablets, capsules, and oral solution.

Source: https://www.drugs.com/amantadine.html

"Amantadine is a generally well-tolerated medication that is more commonly used for off-label treatment of several pediatric neurobehavioral conditions such as attention deficit hyperactivity disorder, autism spectrum disorders, obsessive compulsive disorder, depression, and others."