A hand-held, manually-operated device intended to facilitate the infusion/dispensing of a high viscosity fluid or pressurized liquid (e.g., laminar stream) by assisting with the advancement of the syringe plunger. It includes a manually-squeezed lever mechanism (e.g., pistol-like) and is designed to accept a standard syringe (not included) whereby it is intended to increase the amount of force the user can apply to the syringe plunger based on leverage. It is not foot-operated and does not include a rotating crank mechanism. This is a reusable device.