An injection delivery device involves a body, a medication-containing vial within at least a portion of the body, the medication-containing vial having an open end and a closed end opposite the open end. The open end of the vial includes a seal that prevents medication contained therein from exiting the vial until delivery of the medication to a target injection site is desired. The injection delivery device also includes a plunger positioned near the open end of the vial and a needle having a passage therethrough, wherein the needle, plunger and vial are positioned relative to each other such that, during delivery of an injection, a portion of the passage will be within the plunger, and the plunger and needle will remain stationary relative to each other while the vial moves relative the plunger in a direction towards the target injection site.