A medication control method includes: a medication instruction step in which an instruction to perform medication to a living body is given； a biological information gathering instruction step in which an instruction to perform an operation of detecting biological information that can change due to the medication as a factor and gathering the biological information as monitoring information is given； and an instruction step in which one of the medication instruction step and the biological information gathering instruction step is inhibited or postponed if a period of detection of the biological information carried out according to the biological information gathering instruction step and a period during which the medication carried out according to the medication instruction step influences the detection of the biological information coincide with each other.
