AUTOINJECTOR WITH SECURITY FEATURE

This autoinjector has a proximal end and a longitudinal axis A, and a housing configured to receive a medical container having a barrel defining a reservoir for containing a medical product, said barrel having a distal end provided with a needle and an opened proximal end configured to receive a plunger rod for pushing a stopper arranged inside the barrel. A needle cover is coupled to and movable with respect to said housing between a first extended position, a retracted position, and a second extended position wherein the needle cover moves back in the distal direction to shield the needle. An injection mechanism moves the plunger rod distally inside the barrel in order to expel the medical product contained inside the barrel. A holder is movable with respect to the housing between a passive position wherein the holder does not trigger the injection mechanism and an active position wherein the holder triggers the injection mechanism. A locker is coupled to the holder, the locker being movable with regard to the housing between a locking position, wherein the locker prevents the holder from moving to the activated position, and an unlocking position, wherein the locker rotates around the longitudinal axis A, thereby allowing the holder to move to the activated position, rotation of the locker from the locking to the unlocking position being caused by the needle cover moving towards the retracted position.