Device for dispensing a fluid product synchronized with inhalation, comprising a body (10； 10 ') provided with a mouthpiece (400), a product reservoir (100) containing a fluid and a propellant being mounted axially sliding with respect to said body (10； 10 '), a metering valve (200) having a valve (210) being assembled on said reservoir (100) to selectively dispense the fluid, having a displaceable blocking member (500) and / or deformable between a blocking position, in which said metering valve (200) can not 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 locks said locking member (500) in its locking position, and a release position, in which it does not block said locking member (500), and a sys an inhalation controlled release system comprising an inhalable responsive member (60, 61), deformable and / or displaceable by inhalation, said inhalable responsive member (60, 61) cooperating with said trigger element (600), so that when said inhalation sensitive member (60, 61) deforms and / or moves, it moves and / or deforms said trigger member (600) toward its release position, allowing and the displacement and / or deformation of said locking member (500) from its locking position to its actuating position. Dispositif de distribution de produit fluide synchronisé avec l'inhalation, comportant un corps (10； 10') pourvu d'un embout buccal (400), un réservoir de produit (100) contenant un produit fluide et un gaz propulseur étant monté axialement coulissant par rapport audit corps (10； 10'), une valve doseuse (200) comportant une soupape (210) étant assemblée sur ledit réservoir (100) pour distribuer sélectivement le produit fluide, comportant un élément de blocage (500) déplaçable et/ou déformable entre une position de blocage, dans laquelle ladite valve doseuse (200) ne peut pas être actionnée, et une position d'actionneme
