An accessory for an injection device having a needle cap, the accessory comprising: a body portion comprising a recess adapted to receive the injection device; at least one cap remover cam surface coupled to, or provided on, the body portion; a cover coupled to the body portion, the cover pivotally moveable between an open position in which the recess is exposed to receive the injection device, and a closed position in which the cover at least partially closes the recess to hold the injection device in the body portion; and a cap remover comprising: a grip, the cap remover having an expanded configuration in which the needle cap can pass between the grip, and a constricted configuration in which the grip holds the needle cap to at least partially remove the needle cap from the injection device, wherein the grip comprises at least one moveable element adapted to hold the needle cap when the cap remover is in the constricted configuration and being offset from the needle cap when the cap remover is in the expanded configuration, and at least one cap remover cam coupled to, or provided on, the at least one moveable element; wherein the cover and the cap remover are operably coupled to one another so that when the cover is moved from the open position towards the closed position the cap remover is translated distally and the cap remover moves from the expanded configuration to the constricted configuration in order to remove the needle cap: wherein the at least one cap remover cam is arranged to interact with the at least one cap remover cam surface as the cap remover is translated distally, so as to move the cap remover from the expanded configuration to the constricted configuration. a body portion comprising a recess adapted to receive the injection device; at least one cap remover cam surface coupled to, or provided on, the body portion; a cover coupled to the body portion, the cover pivotally moveable between an open position in which the recess is exposed to receive the injection device, and a closed position in which the cover at least partially closes the recess to hold the injection device in the body portion; and a cap remover comprising: a grip, the cap remover having an expanded configuration in which the needle cap can pass between the grip, and a constricted configuration in which the grip holds the needle cap to at least partially remove the needle cap from the injection device, wherein the grip comprises at least one moveable element adapted to hold the needle cap when the cap remover is in the constricted configuration and being offset from the needle cap when the cap remover is in the expanded configuration, and at least one cap remover cam coupled to, or provided on, the at least one moveable element; wherein the cover and the cap remover are operably coupled to one another so that when the cover is moved from the open position towards the closed position the cap remover is translated distally and the cap remover moves from the expanded configuration to the constricted configuration in order to remove the needle cap: wherein the at least one cap remover cam is arranged to interact with the at least one cap remover cam surface as the cap remover is translated distally, so as to move the cap remover from the expanded configuration to the constricted configuration.