Restless leg syndrome (RLS) causes a feeling of restlessness in the evening hours, usually in the legs, when the limbs are at rest. The restlessness is relieved by movement.
RLS is a common condition in the general population and may have an increased incidence among people with PD, but studies have been inconsistent.
Dopamine agonists, levodopa, gabapentin, gabapentin enacarbil, and pregabalin, can be tried to help relieve RLS symptoms, but should be used with caution (as with all medications) due to potential side effects.
Sleep disorders including RLS are very common in PD and often interfere with getting a restful night sleep. Poor sleep can have significant impacts on your health and wellbeing, so talk with your doctor about these symptoms or any symptoms that interfere with your sleep.

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I have been treated for RLS for years way before PD. I have taken Ropinirole for it with great success although I have had to go to a slightly higher dose with extended release.

All the m did have side effects. They also treat the symptom not the problem. I’ve tried everything.Gabapentin worked well at night. Not a day medicine. Pain medicine worked too. The side effects out weighed the leg kicking!!! Avoid caffeine at night. Hot’bath soak. Be careful!! Good luck.