An apparatus for conditioning an insufflation gas has an inlet for the delivery of an insufflation gas to a conditioning chamber. The conditioning chamber is used to charge the insufflation gas with a medicament by blowing the insufflation gas through a humidifying liquid containing the medicament. The insufflation gas charged with the medicament flows from the charging device to an outlet and can be delivered to the abdominal cavity of a human or animal, where it ensures optimum distribution of the medicament.