Syringe holder with integral dose divider

An assembly for administering preset doses of medication is provided. The assembly includes a syringe holder and a pre-filled syringe which is mounted to the holder. The syringe includes a barrel for containing medication, a movable plunger including a piston within the barrel, and a blunt end having an opening through which the medication within the barrel can be expelled. The holder includes a body portion and a movable stop which is engageable with the syringe plunger. The stop engages the plunger once it has been moved sufficiently to deliver a desired amount of medication from barrel for example. The user then disengages the stop from the plunger, allowing the remaining medication to be administered. One application is to a nasal syringe, where approximately equal doses of medication are desired to be administered to each nostril of the patient.