Overview: Rasagiline is used to treat Parkinson's disease, a condition that affects the part of the brain that controls movement. It is believed to work by increasing the amount of dopamine in the. Rasagiline is used to treat symptoms of Parkinson's disease (stiffness, tremors, spasms, poor muscle control). Rasagiline is sometimes used with another medicine called levodopa. Rasagiline may also be used for purposes not listed in this medication guide. Rasagiline, sold under the brand name Azilect among others, is a medication which is used in the treatment of Parkinson's disease. [2][6] It is used as a monotherapy to treat symptoms in early Parkinson's disease or as an adjunct therapy in more advanced cases. [7] The drug is taken by mouth. [2] Azilect works by increasing the levels of certain chemicals in the brain. Azilect is used to treat symptoms of Parkinson's disease (stiffness, tremors, spasms, poor muscle control). Azilect is an oral medication for Parkinson's disease that can be used alone or with other treatments. It works by blocking an enzyme called MAO-B, which helps increase and maintain dopamine levels in the brain, easing Parkinson's symptoms. Learn about rasagiline (Azilect) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. AZILECT (rasagiline tablets) is indicated for the treatment of Parkinson’s disease (PD). When AZILECT is prescribed as monotherapy or as adjunct therapy in patients not taking levodopa, patients may start AZILECT at the recommended dose of 1 mg administered orally once daily.