Widely used prior to levodopa,______ are now considered to be second-tier agents for the treatment of Parkinson's disease.

Question

Quizplus · Accepted Answer

Muscarinic receptor antagonists were commonly used before levodopa became popular. However, now they are considered to be second-tier agents. Dopamine receptor agonists and selective monoamine oxidase-B inhibitors are the current first-line treatments for Parkinson's disease, while sulfa drugs are not used for this condition at all.

Widely Used Prior to Levodopa,______ Are Now Considered to Be