Prescription
What is prescription
Prescription means "Pre written" in this case of medicine applies to the set of instructions written before putting the Medicine into action, and those set of instructions here are essentially a recepie for making the medication.
In early days their is no large no of pharmaceutical companies. The prescription is very different than now a days.
The Doctor is used to write complete set of instructions for the pharmacist to prepare the drug.
The pharmacist prepare the medicine in his pharmacy and dispense it to the patient.