Abstract: Cover (25) for housing a syringe (1), comprising: a shell (30) extending along a longitudinal axis (B) and adapted to accommodate a body (2), a finger grip (4) and a piston rod (10) of the syringe (1) so that at least a part of a needle of the syringe (1) extends through the shell (30), an actuator (26) moveably mounted on the shell (30), wherein the shell (30) is provided with a holding member (48) adapted to hold the finger grip (4) of the syringe (1), and wherein the shell (30) comprises a base (40) and a lid (55), said base (40) including a cavity extending along the longitudinal axis (B) of the shell (30) and adapted to receive the syringe (1), said lid (55) being movable with respect to the base (40) between an opened position in which the shell (30) presents a lateral access to the cavity, and a closed position.