Dosage & When it is to be taken

Adult: PO- Influenza A -100 mg/day for 5 days.
Prophylaxis of influenza A -100 mg/day for up to 6 wk. W/ influenza vaccination: up to 3 wk after vaccination.
Herpes zoster- 100 mg twice daily for 14 days, may continue for another 14 days if pain persists.
Parkinson's disease-100 mg/day, up to 100 mg twice daily after ≥1 wk. Max: 400 mg/day.

When it is not to be taken (Contraindications)

Hypersensitivity.

Drug Name : Amantadine

This medication is a synthetic (man-made) anti-viral and antiparkinson agent, prescribed for Parkinson's disease and also for treating certain types of flu.