The MEDI-DART Projectile, Extension, or Crossbow syringe, invented by a group of central Alberta ranchers, makes medicating pasture cattle easy and less stressful for livestock. The patented MEDI-DART systems are easy to use and inject larger doses of medication than other medicating systems.

MEDI-DART is used to give a single intramuscular or subcutaneous injection to livestock without restraining the animal. MEDI-DART also self-ejects once the injection is completed. At the end of the injection an ejector loop is pushed ahead which removes the needle from the animal for easy retrieval of the syringe.