Which of the following agents enhances the bioavailability of levodopa in patients with Parkinson's disease:: (A) Amantadine, (B) Ropinirole, (C) Entacapone, (D) Selegiline
Answer is C. Entacapone & tolacapone which cones under COMT INHIBITORS enhance & prolong the therapeutic effect of levodopa-carbidopa in advanced & fluctuating PD . Ref: KD Tripathi 8th ed.