The portable device (100, 200, 300, 400) for inhalation of at least one active composition comprises: at least one reservoir (105, 110, 205) for storing an active composition, an intermediate chamber (115) connected to at least one reservoir, an inhalation line (120) connected to the intermediate chamber, a means (130, 135, 230) for aerosolising the active composition coming from a reservoir and a regulator (125, 225, 325, 405, 410) for regulating the quantity of aerosolised active composition according to a command representing a quantity of active composition to be aerosolised received by the regulator.
