Visibility of drug availability on medication tab

Doctor needs to be aware of the availability of drugs so that he can suggest the patient alternate medications in his encounter in clinical module. Even if the medication is not available in the hospital stock; the patient can be cognizant of it as to which medicine/s s/he can avail from the hospital pharmacy. This update/notification is an imperative since the sales operator is not entitled to sell any drug unless precisely prescribed by the doctor since the drugs are provided at gratis by the government. and accountability is a legitimate issue here.