The present technology relates to an information processing apparatus, an information processing method, and a program, and, in particular, to an information processing apparatus, an information processing method, and a program by which more accurate information on the dosage can be provided. An extractor extracts, from pharmaceutical receipt information recorded in a recording unit, information on a dispensing date, the number of prescription days, a dosage form code, and the like of pharmaceuticals. A determiner identifies, based on the dosage form code of the pharmaceuticals, a dosage form of each pharmaceutical. A dosage schedule generator sets the pharmaceutical in a predetermined dosage form such as an oral medication as first processing-target pharmaceuticals and determines, based on the dispensing date and the number of prescription days, a dosage period for the first processing-target pharmaceuticals and determines a dosage period for other pharmaceuticals that are not the first processing-target pharmaceuticals by using this dosage period. The present technology is applicable to the information processing apparatus.