What is Ropinirole? Ropinirole is a prescription medication that belongs to a class of drugs known as dopamine agonists. It is commonly used to treat symptoms of Parkinson’s Disease and Restless Legs Syndrome (RLS). Mechanism of Action: Ropinirole works by mimicking the effects of dopamine, a neurotransmitter in the brain that is often deficient in people with Parkinson’s disease. By activating ..