The present invention relates to a connector for a container (10) filled with a liquid medicament (13) and having a wall structure (12) with at least one flexible portion (18), the connector comprising:- a body (22) forming a suction chamber (23) to engage with the flexible portion (18),- a piercing element (28) extending through the body (22) and into the suction chamber (23),- a suction outlet (30) in fluid communication with the suction chamber (23).
