Administration is the process by which a patient takes a medicine. There are three major categories of drug administration;enteral (by mouth), parenteral (into the blood stream), and other (which includes giving a drug through intranasal, topical, inhalation, and rectal means).
They can be administered all at once as a bolus, at frequent intervals or
continuously. Frequencies are often abbreviated from Latin, such as every 8 hours reading Q8H from Quaque VIII Hora.