A medication cup that is composed of plastic or paper is used to hold and dispense oral medications to a patient. A plastic medication cup is used to dispense both liquid and nonliquid medications, an...A medication cup that is composed of plastic or paper is used to hold and dispense oral medications to a patient. A plastic medication cup is used to dispense both liquid and nonliquid medications, and calibrated cups are also used to measure liquid medications prior to administration. Syringes used for injections are available in many sizes and are selected by the nurse based on the type of injection and the type of medication administered.