This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Child Psychiatry, Subject name: Psychiatry
Methylphenindate is drug of choice for 
Select and explain. 
A. Obsessive compulsive disorder, B. ADHD (attention deficit hypersensitivity disorder), C. Enuresis, D. Autism
B: ADHD (attention deficit hypersensitivity disorder)
Answer: B: ADHD (attention deficit hypersensitivity disorder) 
Explanation: Ans. b (ADHD). (Ref. Pharmacology by KD Tripathi 5th/- 436; Harrison 18th/27, 369)Drugs used for ADHD# Methylphenidate# Amphetamine# PimolineMethylphenidate acts by releasing NA & dopamine in brain. It is preferred because it causes less tachycardia & growth retardation.