Amantadine is a drug that has U.S. Food and Drug Administration approval for use both as an antiviral and an antiparkinsonian drug. It is the organic compound 1-adamantylamine or 1-aminoadamantane, meaning it consists of an adamantane backbone that has an amino group substituted at one of the four methyne positions. Rimantadine is a closely related derivative of adamantane with similar biological properties.
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.
SYMMETREL is indicated for the prophylaxis and treatment of signs and symptoms of infection caused by various strains of influenza A virus. SYMMETREL is also indicated in the treatment of parkinsonism and drug-induced extrapyramidal reactions.