Pharmacology Central Nervous system fb89f396 True statement about drugs used in Parkinsonism is: A Amantadine is a cholinergic drug B Vitamin B6 enhances the L-Dopa action C COMT inhibitors prolong the action of L'-dopa D None High-Yield Explanation Both entacapone and tolcapone enhance and prolong the therapeutic effect of levodopa-carbidopa in advanced and fluctuating PD Ref KD Tripati 8th ed.