(Rac)-Rotigotine hydrochloride is primarily used in the treatment of Parkinson's disease and restless legs syndrome (RLS). It functions as a dopamine agonist, stimulating dopamine receptors in the brain to alleviate symptoms such as tremors, stiffness, and movement difficulties associated with Parkinson's. For RLS, it helps reduce the uncomfortable sensations and the urge to move the legs, particularly during periods of rest or sleep. The compound is often administered via transdermal patches, ensuring a steady release of the medication over 24 hours, which improves patient compliance and provides consistent therapeutic effects. Its application is particularly beneficial for patients who have difficulty with oral medications or require continuous dopamine receptor stimulation.