Rasagiline: a guide to its use in Parkinson's disease.

Oral rasagiline (Azilect®) as monotherapy or as an adjunct to levodopa provides a useful option in the symptomatic treatment of adult patients with Parkinson's disease. In patients with early Parkinson's disease, monotherapy with rasagiline 1 mg/day improved symptoms of the disease relative to placebo. As adjunctive therapy to levodopa in patients with advanced Parkinson's disease, rasagiline 0.5 or 1 mg/day significantly reduces the total daily 'off' time. Rasagiline is generally well tolerated when administered as monotherapy or as adjunctive therapy.