Which of the following drug should not be given along with levodopa:: (A) Carbidopa, (B) MAO inhibitors, (C) Vitamin B complex, (D) Benserazide
Answer is C. Pyridoxine: Abolishes therapeutic effect by .enhancing peripheral decarboxylation of dopa; less is available to cross to the brain. REF:ESSENTIALS OF MEDICAL PHARMACOLOGY KD TRIPATHI 8TH ED. page 429