A trigger operated syringe (100) for intramammary injection of antibiotics has a fluid containing syringe cartridge (203) activated by a plunger (206) which is inserted into the syringe cartridge (203A) and expels fluid when the trigger (205) is pulled. The plunger moves in a direction which is effectively perpendicular to the direction of movement of the trigger, allowing for ease of injection to a cow's teats, and ejection of the spent cartridges. The invention concerns a syringe cartridge strip for use with a syringe cartridge applicator, wherein the syringe cartridge strip comprises a base portion and a plurality of spaced apart syringe cartridges, wherein the base portion is adapted to connect to said plurality of spaced apart syringe cartridges, each syringe cartridge having (a) a body adapted to contain a fluid for dispensing, a dispensing end adapted to allow the fluid to be expelled from the body, and a non-dispensing end adapted to allow a plunger or other mechanism of the syringe cartridge applicator to contact or engage therewith to drive the fluid from the syringe cartridge.