This medicine is used to prevent or treat the flu. It may also be used to treat symptoms of Parkinson's disease, to reverse a certain type of side effect called an extrapyramidal reaction, or for other conditions as determined by your doctor.

Also Known as Amantadine

Amantadine (a-MAN-ta-deen) is an antiviral. It is used to prevent or treat certain influenza (flu) infections (type A). It may be given alone or along with flu shots. Amantadine will not work for colds, other types of flu, or other virus infections.

Where can I order Symmetrel from? Can I buy Symmetrel at Canadian Prices?

Yes, if you are from the U.S. then you can buy Symmetrel at Canadian prices. Currently we will only accept an order for Symmetrel from U.S. and Canadian residents. Both U.S. and Canadian residents require a prescription to purchase Symmetrel and when you order Symmetrel it will be delivered with express shipping.

Symmetrel

Symmetrel also is an antidyskinetic. It is used to treat Parkinson's disease, sometimes called paralysis agitans or shaking palsy. It may be given alone or with other medicines for Parkinson's disease. By improving muscle control and reducing stiffness, this medicine allows more normal movements of the body as the disease symptoms are reduced. Symmetrel is also used to treat stiffness and shaking caused by certain medicines used to treat nervous, mental, and emotional conditions.

Symmetrel may be used for other conditions as determined by your doctor.

Symmetrel is available only with your doctor's prescription, in the following dosage forms:

Oral Capsules (U.S. and Canada)

Syrup (U.S. and Canada)

Tablets (U.S.)

Proper Use of Symmetrel

For patients taking Symmetrel to prevent or treat flu infections :

Talk to your doctor about the possibility of getting a flu shot if you have not had one yet.

This medicine is best taken before exposure, or as soon as possible after exposure, to people who have the flu.

To help keep yourself from getting the flu, keep taking this medicine for the full time of treatment. Or if you already have the flu, continue taking this medicine for the full time of treatment even if you begin to feel better after a few days. This will help to clear up your infection completely. If you stop taking this medicine too soon, your symptoms may return. This medicine should be taken for at least 2 days after all your flu symptoms have disappeared.

This medicine works best when there is a constant amount in the blood. To help keep the amount constant, do not miss any doses. Also, it is best to take the doses at evenly spaced times day and night. For example, if you are to take two doses a day, the doses should be spaced about 12 hours apart. If this interferes with your sleep or other daily activities, or if you need help in planning the best times to take your medicine, check with your health care professional.

If you are using the oral liquid form of Symmetrel, use a specially marked measuring spoon or other device to measure each dose accurately. The average household teaspoon may not hold the right amount of liquid.

For patients taking Symmetrel for Parkinson's disease or movement problems caused by certain medicines used to treat nervous, mental, and emotional conditions:

Take this medicine exactly as directed by your doctor. Do not miss any doses and do not take more medicine than your doctor ordered.

Improvement in the symptoms of Parkinson's disease usually occurs in about 2 days. However, in some patients this medicine must be taken for up to 2 weeks before full benefit is seen.

Precautions While Using Symmetrel

Drinking alcoholic beverages while taking this medicine may cause increased side effects such as circulation problems, dizziness, lightheadedness, fainting, or confusion. Therefore, do not drink alcoholic beverages while you are taking this medicine.

This medicine may cause some people to become dizzy, confused, or lightheaded, or to have blurred vision or trouble concentrating. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or are not alert or able to see well. If these reactions are especially bothersome, check with your doctor.

Getting up suddenly from a lying or sitting position also may be a problem because of the dizziness, lightheadedness, or fainting that may be caused by this medicine. Getting up slowly may help. If this problem continues or gets worse, check with your doctor.

If Symmetrel causes you to feel very depressed or to have thoughts of suicide, check with your doctor immediately.

Symmetrel may cause dryness of the mouth, nose, and throat. For temporary relief of mouth dryness, use sugarless candy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if your mouth continues to feel dry for more than 2 weeks, check with your doctor or dentist. Continuing dryness of the mouth may increase the chance of dental disease, including tooth decay, gum disease, and fungus infections.

This medicine may cause purplish red, net-like, blotchy spots on the skin. This problem occurs more often in females and usually occurs on the legs and/or feet after this medicine has been taken regularly for a month or more. Although the blotchy spots may remain as long as you are taking this medicine, they usually go away gradually within 2 to 12 weeks after you stop taking the medicine. If you have any questions about this, check with your doctor.

For patients taking Symmetrel to prevent or treat flu infections:

If your symptoms do not improve within a few days, if they become worse, or you develop new symptoms, check with your doctor.

For patients taking Symmetrel for Parkinson's disease or movement problems caused by certain medicines used to treat nervous, mental, and emotional conditions:

Patients with Parkinson's disease must be careful not to overdo physical activities as their condition improves and body movements become easier since injuries resulting from falls may occur. Such activities must be gradually increased to give your body time to adjust to changing balance, circulation, and coordination.

Some patients may notice that this medicine gradually loses its effect while they are taking it regularly for a few months. If you notice this, check with your doctor. Your doctor may want to adjust the dose or stop the medicine for a while and then restart it to restore its effect.

Do not suddenly stop taking this medicine without first checking with your doctor since your Parkinson's disease may get worse very quickly. Your doctor may want you to reduce your dose gradually before stopping the medicine completely.

Side Effects of Symmetrel

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common Blurred vision; confusion (especially in elderly patients); difficult urination (especially in elderly patients); fainting; hallucinations (seeing, hearing, or feeling things that are not there); swelling of hands, feet, or lower legs 

Rare Convulsions (seizures); decreased vision or any change in vision; difficulty in coordination ; fever, chills, or sore throat; increased blood pressure; increase in body movements ; irritation and swelling of the eye; loss of memory; mental depression; severe mood or mental changes; skin rash; slurred speech; thoughts of suicide or attempts at suicide; unexplained shortness of breath 

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

More common Agitation, anxiety, or nervousness; difficulty concentrating; dizziness or lightheadedness ; headache; irritability ; loss of appetite; nausea ; purplish red, net-like, blotchy spots on skin; trouble in sleeping or nightmares 

Less common or rare Constipation; decrease in sexual desire ; diarrhea; drowsiness; dryness of the mouth, nose, and throat; false sense of well-being; headache; vomiting; unusual tiredness or weakness

 

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.

Additional Symmetrel Information

Once a medicine has been approved for marketing for a certain use, experience may show that it is also useful for other medical problems. Although this use is not included in product labeling, Symmetrel is used in certain patients with the following medical condition:

Unusual tiredness or weakness associated with multiple sclerosis

Other than the above information, there is no additional information relating to proper use, precautions, or side effects for this use.

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