This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Which of the following drug should not be given along with levodopa: 
Select and explain. 
A. Carbidopa, B. MAO inhibitors, C. Vitamin B complex, D. Benserazide
C: Vitamin B complex
Answer: C: Vitamin B complex 
Explanation: 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