This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Pharmacology, Subject name: Pharmacology
For which of the following drugs a warning is written 'To be sold by retail on the prescription of a Registered Medical Practitioner only' 
Select and explain. 
A. Schedule H, B. Schedule X, C. Schedule Y, D. Schedule J
A: Schedule H
Answer: A: Schedule H 
Explanation: Ans. (A) Schedule H(Ref. KK Sharma 2nd/e p6)Drugs are broadly of 2 types:Schedule H drugs: Must be sold by retail only when a prescription by registered medical practitioner is produced.OTC: These are over the counter drugs, which may be sold without prescription.