Take amantadine exactly as directed by your doctor.
Amantadine comes as a capsule and liquid to take by mouth. It is usually taken once or twice a day.
Do not stop taking amantadine without talking to your doctor.

Side effects may include:
blurred vision
dizziness
lightheadedness
faintness
trouble sleeping
If you experience any of the following side effects, call your doctor immediately:
depression or anxiety
swelling of the hands, legs, or feet
difficulty urinating
shortness of breath
rash

Inform your doctor if you are allergic to the formulation of this medication or any other medication in any other form.

Depression medication or other mental illness
Alcohol
Triamterene
Caffeine
Haloperidol
Bupropion
Hydrochlorothiazide(HCTZ)
Allergy medication
Metoclopramide
Quinine
Sulfamethoxazole
Quinidine
Trimethoprim

In case of overdose, call your local poison control center. If the victim has collapsed or is not breathing, call local emergency services.

Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

Amantadine is used to treat Parkinson's disease and conditions similar to those of Parkinson's disease. It also is used to prevent and treat respiratory infections caused by influenza A virus.

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture. Do not freeze.

tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking amantadine, call your doctor immediately. Amantadine may cause harm to the fetus.
this medicine may cause blurred vision; be careful when driving or doing things requiring alertness.