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AMANTADINE (a MAN ta deen) is an antiviral medicine. It is used to prevent and to treat a specific type of flu called influenza A. It will not work for colds, other types of flu, or other viral infections. This medicine is also used to treat Parkinson's disease and other movement disorders.
Take this medicine by mouth. Follow the directions on the prescription label. Use a specially marked spoon or container to measure each dose. Ask your pharmacist if you do not have one. Household spoons are not accurate. Take your medicine at regular intervals. Do not take your medicine more often than directed. Take all of your medicine as directed even if you think your are better. Do not skip doses or stop your medicine early. Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 1 year old for selected conditions, precautions do apply. Patients over 65 years old may have a stronger reaction and need a smaller dose.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in vision
color changes on the skin
falling asleep during normal activities like driving
hallucination, loss of contact with reality
new or increased gambling urges, sexual urges, uncontrolled spending, binge or compulsive eating, or other urges
signs and symptoms of low blood pressure like dizziness; feeling faint or lightheaded, falls; unusually weak or tired
swelling in your legs and feet
suicidal thoughts or other mood changes
trouble passing urine or change in the amount of urine
uncontrolled movements of the mouth, head, hands, feet, shoulders, eyelids or other unusual muscle movements
Side effects that usually do not require medical attention (report these to your doctor or health care professional if they continue or are bothersome):
antihistamines for allergy, cough and cold
certain medicines for bladder problems like oxybutynin, tolterodine
certain medicines for stomach problems like dicyclomine, hyoscyamine
certain medicines for travel sickness like scopolamine
some flu vaccines
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
depression or other mental illness
if you drink alcohol
low blood pressure
suicidal thoughts, plans, or attempt; a previous suicide attempt by you or a family member
an unusual or allergic reaction to amantadine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Tell your doctor or health care professional if your symptoms do not improve.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
If you are taking this medicine for Parkinson's disease or a movement disorder, be careful. Slowly increase your daily activities as your condition improves. Do not suddenly stop taking your medicine because you may develop a severe reaction.
You may get dry mouth or eyes, or blurry vision while taking this medicine. Try sugarless gum or hard candy, and drink 6 to 8 glasses of water daily. Brush and floss your teeth regularly and carefully to avoid teeth and gum problems. You may want to wet your eyes with lubricating eye drops. Talk to your doctor if these symptoms become a problem.
There have been reports of increased sexual urges or other strong urges such as gambling while taking some medicines for Parkinson's disease. If you experience any of these urges while taking this medicine, you should report it to your health care provider as soon as possible.
You should check your skin often for changes to moles and new growths while taking this medicine. Call your doctor if you notice any of these changes.
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