A doctor is not allowed to dispense a secret remedial agent. 

According to Section 6.5 of the Indian Medical Council (Professional conduct, Etiquette and Ethics) Regulations, 2002, “The prescribing or dispensing by a physician of secret remedial agents of which he does not know the composition, or the manufacture or promotion of their use is unethical and as such prohibited. All the drugs prescribed by a physician should always carry a proprietary formula and clear name.”