<prompt> For which of the following drugs a warning is written To be sold by retail on the prescription of a Registered Medical Practitioner onlySchedule HSchedule XSchedule YSchedule J  <response>: Ans. A Schedule HRef. KK Sharma 2nde p6Drugs 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. 