a compression hypodermic syringe is disclosed wherein two leaves are hinged together . one leaf contains a receptacle for a collapsible capsule which contains a pre - measured dose of medication . the second leaf has a structure that acts as a plunger when the second leaf is folded over the first leaf . a double ended hypodermic needle is provided that has one end that pierces a membrane on the collapsible capsule and a second end that is exposed for insertion into a patient when the two leaves are folded together .