A fluid dispenser device including a body (10) and at least one cover element (11, 12) that is mounted to pivot on said body (10) between a closed position and an open position, said device including at least one individual reservoir containing a single dose of fluid, such as powder, opening means (80) being provided for opening an individual reservoir each time the device is actuated, said device including movable support means (50) that are adapted to move an individual reservoir against said opening means (80) on each actuation, said movable support means (50) being displaceable between a non-dispensing position and a dispensing position, said movable support means (50) being urged towards their dispensing position by resilient means (70), such as a spring or a spring blade, and being held in their non-dispensing position by blocking means that are released by the user inhaling, said device including a cocking member (800) that co-operates with said resilient means (70) and with a cam surface (51) that is formed on said movable support means (50), said cocking member (800) and said resilient means (70) being assembled in a housing provided in a housing piece (700) connected to a cover element (12).
