Device for inhalation-synchronized dispensing of a fluid product, comprising a body (10) provided with a mouthpiece (400), a reservoir (100), a valve (200) being assembled by means of a fixing element (5) on said reservoir (100) in order to selectively dispense the fluid product, said device comprising: - a blocking element (500) movable and/or deformable between a blocking position, in which said valve (200) cannot be actuated, and an actuating position, in which said metering valve (200) can be actuated, - a trigger element (600) movable and/or deformable between a locking position, in which it blocks said blocking element (500) in its blocking position, and a release position, in which it does not block said blocking element (500), and - an inhalation-controlled trigger system comprising an inhalation-sensitive member (60, 61), deformable and/or movable under the effect of inhalation, said inhalation-sensitive member (60, 61) cooperating with said trigger element (600) in such a way that, when said inhalation-sensitive member (60, 61) deforms and/or moves, it moves and/or deforms said trigger element (600) to its release position, thereby enabling the movement and/or deformation of said blocking element (500) from its blocking position to its actuating position, said device comprising a ring (900) having an axial projection (901) cooperating with said blocking element (500) in such a way that, in the blocking position, said axial projection (910) cooperates with an axial projection (501) in order to block the reservoir (100), and, in the actuating position, said axial projection (901) cooperates with an axial recess (502) in order to permit an axial movement of said reservoir (100).Dispositif de distribution de produit fluide synchronisé avec l'inhalation, comportant un corps (10) pourvu d'un embout buccal (400), un réservoir (100), une valve (200) étant assemblée au moyen d'un élément de fixation (5)sur ledit réservoir (100) pour distribuer sélectivement le prod
