Standard Operating Procedure (SOP) is a documentation that describes how to perform various routine operations. It contains a step by step instructions.
In pharmacy settings various activities are performed everyday, each task should be under a standardized process that everybody must follow. Personnel must submit themselves to these procedures to have organized and synchronicity in the work place. Food and Drug Administration (FDA) has imposed it as a requirement to every pharmacy workplace to have and make its own SOP. They are requiring the following tasks of SOP - Product Complaints, Product Recalls, Procurement of Stocks, Good Dispensing Practice, Good Storage Practice, Cold Chain Management, Disposal of Expired, Damaged, Returned or Rejected Products. The pharmacist/s, individual who can knowledgeably review the procedures or somebody higher up in the hierarchy of the department are the ones who can create, review and approve the SOP. All businesses that falls under pharmacy, either manufacturing, distributing, trading, laboratories or drugstores are mandated to make their own SOP.
Here's an illustration of SOP that should be followed when creating it for your drugstore. Hope it can help you.