Amantadine (Systemic)

Brand Names : Symmetrel, Endantadine, Gen-Amantadine

Precautions While Using This Medicine

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

Amantadine 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 amantadine 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 amantadine 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.