amantadine - oral, Symmetrel (cont.)
HOW TO USE: Take this medication by mouth with or without food, usually once or twice daily or as directed by your doctor. If you are taking this medication twice a day and have trouble sleeping after taking it, take the second dose several hours before bedtime.If you are taking the syrup, measure the dose carefully with a medication spoon/cup.Dosage is based on your medical condition and response to therapy. In children, the dosage is also based on body weight. Do not take more than prescribed by your doctor.This medication works best when the amount of medicine in your body is kept at a constant level. Therefore, take this medication at evenly spaced intervals throughout the day and night.If you are taking amantadine for a viral infection, begin taking it as soon as possible. Continue taking it until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a relapse of the infection.In Parkinson's disease, the effects of the medication may not be noticed for several weeks. Do not suddenly stop taking the medication because symptoms or side effects may worsen. Your doctor may want to reduce your dose gradually. This medication may not work as well after it has been taken for several months. Tell your doctor if this medication stops working well.
SIDE EFFECTS: Blurred vision, nausea, stomach upset, drowsiness, dizziness, headache, dry mouth, constipation, nervousness, or trouble sleeping may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: purplish-red blotchy spots on the skin, swelling of the ankles/feet, difficulty urinating, vision changes.Tell your doctor immediately if any of these rare but very serious side effects occur: shortness of breath, mental/mood changes (such as depression, suicidal thoughts/attempts, compulsive behavior including urge to gamble), muscle stiffness, uncontrolled muscle movements, unusual sweating, fast heartbeat, unexplained fever, seizures.A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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