SAMTRONIC Syringe Pumps are the ones designed for infusion of low molecular weight drugs such as: chemotherapy, anesthetic, analgesic and antibiotic drugs. These are used to administer highly concentrated drugs or antibiotics from a syringe (anywhere between 1 and 50 mL). By controlling the rate at which the syringe plunger advances, SAMTRONIC Syringe Pumps directly control the fluid flow rate (as opposed to large-volume pumps, which moderate gravity-driven flow).