Pramipexole is used to treat Parkinson disease. It may be used alone or in combination with other medicines (eg, levodopa). Pramipexole is a dopamine agonist that works on the nervous system to help treat the symptoms of Parkinson disease. Pramipexole is also used to treat Restless Legs Syndrome (RLS). RLS is a neurologic disorder that affects sensation and movement in the legs and causes the legs to feel uncomfortable. This results in an irresistible feeling of wanting to move your legs to make them comfortable.