A tablet has a hole that can retain an active pharmaceutical ingredient (API) in a side surface. A tablet production device has a second conveyance disk that conveys the tablet while sucking/supporting the side surface of the tablet, medicinal agent supply device ejects the API into the holes and an inkjet head that prints on the front and back surfaces of the tablets. The tablets are conveyed with the side surface thereof sucked by the second conveyance disk, the medicinal agent supply device adds the API into the holes and the inkjet head prints on the front and back surfaces at the same time.
