The present invention provides a single-dose powder-medication inhaler (10) for nasal application, comprising a flat inhaler housing consisting of two flat housing parts (1, 2) connected to one another along a connecting plane (E). Formed in the two flat housing parts are: a medication chamber (11) having at least one powder receiving hollow (11')； an air inlet opening (14)； and an air channel delimited by walls (7), the air channel extending from the air inlet opening (14), via the medication chamber (11) to a discharge opening (12). According to the invention the air inlet opening (14) does not lie on a side facing away from the discharge opening (12), whereby the air channel provides a direction change of an air flow through the air inlet opening (14) relative to the discharge opening (12). The outlet section (13) of the air channel between the medication chamber (11) and the discharge opening (12) has more than one bend (6). Furthermore a nose piece (4), designed for inserting in only one nostril or in both nostrils, is formed on the discharge opening (12).
