长期服用左旋多巴可以有效缓解帕金森病的运动障碍症状。

Taking ___levodopa regularly can effectively relieve movement symptoms in Parkinson's disease.

医生给他开了左旋多巴和卡比多巴的复合药物来治疗帕金森病。

The doctor prescribed a combination of ___levodopa and carbidopa to treat his Parkinson's disease.