Pharmacology L-Dopa is combined with carbidopa in the treatment of parkinsonism to – A Decrease the efficacy of levodopa B Decrease the efficacy of levodopa C Increase the dose of levodopa required D Inhibit conversion of levodopa to dopamine in the CNS 💡 Explanation L-Dopa is combined with carbidopa in the treatment of parkinsonism to - ✓ Correct Answer: B. Decrease the efficacy of levodopa