Parkinsonism is a chronic neurodegenerative disease typically affecting men over age 50, characterized by shaking, rigidity, and difficulty with motor control and movement. Common drugs used to treat Parkinsonism symptoms include L-Dopa combined with Carbidopa to increase dopamine levels; dopamine agonists like Pergolide and Bromocriptine which activate dopamine receptors; MAO-B inhibitors like Selegiline; and anticholinergic agents such as Benzhexol that reduce muscle stiffness and tremors.