What type of drug delivery system is not permitted as the primary method?

Floor stock distribution is not permitted as the primary method for drug delivery because it involves storing a supply of medications on a nursing unit or in an area where they can be accessed by nursing staff without a pharmacist's supervision. This can lead to issues with medication safety, accuracy, and accountability. When medications are stored in floor stock, it becomes more difficult to ensure that they are used appropriately and that the correct patient receives the correct dose at the correct time.

In contrast, methods like pill pack distribution, automated dispensing, and unit dose distribution are designed to enhance medication safety and improve patient outcomes. Pill packs allow for medications to be organized by administration times, reducing the risk of dosing errors. Automated dispensing systems provide a controlled environment for accessing medications, allowing pharmacists to maintain oversight and reducing the risk of diversion. Unit dose distribution involves dispensing medications in single doses, which also promotes safety and simplifies the medication administration process for healthcare providers.

Overall, the priority in medication delivery systems is to ensure that medications are dispensed and administered with the highest standards of safety and accuracy, which is not adequately achieved through floor stock distribution.