When the delivery quantity is less than one piece, and it is necessary to unpack and deliver, the storekeeper should show the delivery voucher to each storage place where unpacked drugs are stored, determine the batch number of the drugs out of the warehouse according to the principles of "first in first out", "first out last in last out" and delivery by batch number, take out the drugs according to the quantity on the delivery voucher, and sign the delivery voucher, and put the rest into a covered spare container, indicating the name, manufacturer, specification, batch number and quantity. For drugs that have been unpacked, a packing list shall be placed in the box, and there are obvious packaging signs outside the box. When using other drug packaging boxes as substitute boxes for unpackaged drugs, the original label of the substitute box should be covered or altered, and the LCL mark should be clearly marked.