A Medical representative primary customer is Doctors. He/She need to discuss about a doctor’s prescription habits* to approach to a doctor with desired or better products. A doctor’s prescription habit is known by only pharmacy stores and chemist shop nearby or within hospital where a doctor practice.
A medical representative discusses his customer’s need (i.e. doctor’s need) from chemist shop/pharmacy store staff and has to approach to doctor with better or similar molecule to get prescription of own brand products.
*Doctor’s prescription Habit means which molecule a doctor prefers to prescribe for his patient’s illness. For example, some doctors prefer to prescribe rabeprazole for acidity; some doctors prefer to prescribe omeprazole and some pantaprazole etc.