Provided is an inhalation aid that is mounted to the inhalation opening of a container in which an oral powder is stored so as to enable effective ingestion of the oral powder within the container. This inhalation aid (10) is attached to an inhaler (100) that at least includes: an inhalation opening (110) a storage chamber (130) for storing an oral powder (P) within a container (120) an airflow passage (140) that connects the inhalation opening and the storage chamber and an outside-air inlet (150) for guiding outside air into the storage chamber. This inhalation aid is characterized by being a hollow member in which one end thereof is provided with a mounting part (20) that mounts to the inhalation opening, the other end thereof is provided with a mouthpiece (30), and a one-way valve (40) that only allows the passage of air during inhalation is further provided within said hollow member, wherein the open cross-sectional area (A1) of the mouthpiece is larger than the open cross-sectional area (A2) of the storage chamber. This inhalation aid thus demonstrates the Venturi effect, resulting in a larger (faster) air flow rate within the storage chamber and increased suction.La présente invention concerne un dispositif dassistance dinhalation qui est installé sur louverture dinhalation dun récipient dans lequel une poudre orale est stockée de manière à permettre une ingestion efficace de la poudre orale dans le récipient. Ce dispositif dassistance dinhalation (10) est fixé à un inhalateur (100) qui comprend au moins : une ouverture dinhalation (110) une chambre de stockage (130) pour stocker une poudre orale (P) dans un récipient (120) un passage de flux dair (140) qui raccorde louverture dinhalation et la chambre de stockage et une entrée dair extérieur (150) pour guider lair extérieur dans la chambre de stockage. Ce dispositif dassistance dinhalation est caractérisé en ce quil est un élément creux dans lequel une extrémité de celui-ci est pourvue dune partie de mont
