Medication storage cassette

A medication storage cassette mounted on a cassette mounting portion provided in a medication packaging device, which is a device that allows medications to be sorted and discharged for each single dose based on a medication dispensing request, to dispense the medications, the medication storage cassette comprising:

• a main body portion providing an inner space for storing the medications and mounted on a first cassette mounting portion of the cassette mounting portion disposed in a plurality of layers;
• and
• an opening/closing adjusting portion located toward one side of the main body portion to adjust opening and closing of the inner space,
• wherein the opening/closing adjusting portion enables the inner space to be open without interfering with a second cassette mounting portion protruding to a front of the main body portion and located at an upper side of the first cassette mounting portion based on a state in which the main body portion is mounted on the first cassette mounting portion, thereby enabling the medications to be refilled in the state in which the main body portion is mounted on the first cassette mounting portion.