The prefilled syringes containing the right volume of product, greatly simplifies the administration of sterile solution/substance for injection and reduces the risk of errors, consequently improving safety. The ease of use favours self-administration and use in emergency situations, in which the injection must be performed as rapidly as possible. It avoids the risk of bubbles forming in the syringe and the risk of contamination, which are always present when products are drawn from ampoules or vials. Pre-filled syringes guarantee a certain dose, with complete product recovery, and ensure sterility.