A pharmacy is a business that fills prescriptions to outpatient settings. In most cases, the prescriptions will be electronic, and usually a month’s supply. The pharmacy must support all prescriptions that are medically necessary. In the event they don’t have the drug, the pharmacy will order it, and will likely have it within a couple of days. If the drug is a life sustaining drug, then the pharmacy must do a search, and offer it to be filled by another pharmacy.