An inhalation-synchronized fluid dispenser device having a body (10) with a mouthpiece (400), a reservoir (100), a valve (200) assembled by a fastener element (5) on the reservoir (100). The device includes a blocking element (500) that pivots about a pivot axis B between a blocking position and an actuation position； a trigger element (600) that pivots about a pivot axis C； and an inhalation-controlled trigger system. The device includes an actuator member (800) mounted to move axially between a rest position and a primed position. A spring (850) is arranged so that when the actuator member (800) moves towards its primed position, the spring (850) is compressed, so as to transmit an axial force (F) to the reservoir (100).
