Amantadine
Brand Names
SymmetrelWhat is Amantadine
Amantadine is an antiviral medicine that is prescribed for treating 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. It works by blocking the actions of viruses in your body. Amantadine is available as a capsule and liquid.
Side effects of Amantadine
Side effects of Amantadine are the followings:
- blurred vision;
- dizziness;
- lightheadedness;
- faintness;
- trouble sleeping.
But if you have any of these serious symptoms it is necessary to visit your doctor immediately:
- depression or anxiety;
- swelling of the hands, legs or feet;
- difficulty urinating;
- shortness of breath;
- rash.
Indication
Amantadine is prescribed for treating 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.
Precautions
Before using Amantadine you should inform your doctor if you have:
- epilepsy or other seizure disorder;
- congestive heart failure;
- kidney disease;
- liver disease;
- low blood pressure or fainting;
- eczema;
- glaucoma;
- a history of mental illness, suicide attempt or drug/alcohol addiction.
Dosage forms
Amantadine dosing for the flu is 100 mg twice daily or 200 mg once daily. A lower dose (amantadine 100 mg once daily) is recommended for people age 65 or older. For children age 9 and older the recommended dose is 100 mg twice daily. For children ages 1 to 8 the recommended dose is 2 mg to 4 mg per pound per day, not to exceed 150 mg per day.
Amantadine dosing for Parkinsonism is 100 mg twice a day, if no other Parkinson's medications are used.
Amantadine dosing for extrapyramidal symptoms is 100 mg twice daily. If it is necessary, your doctor may increase your dose up to a total of 300 mg per day.
