[Problem] An attention is focused on a prefilled type nasal drip appliance among the nasal drip appliances. It is an object to provide a prefilled type nasal drip appliance that enables a production cost thereof to be suppressed, that can be handled by all people in the same way, that can be easily handled, and that enables a medicinal solution to be sprayed into the nostril with a certainty. [Means for Solving Problems] A prefilled type nasal drip appliance is configured to be comprised of a syringe barrel provided with a spray hole of a medicinal solution on one side and a medical solution storage part that stores the medicinal solution in advance on the other side an elastic piston that is inserted into a syringe barrel in a slidable manner to the inner circumferential face of the syringe barrel a plunger that is attached to the rear end of the piston and that enables the piston to be moved in a direction of an axis of the syringe barrel and an elastic center stopper that is inserted into the syringe barrel in such a manner that the center stopper is located between the spray hole and the piston and that can slide on the inner circumferential face of the syringe barrel, wherein the medicinal solution is stored between the center stopper and the piston in a liquid-tight state in advance, the syringe barrel is provided with a center stopper locking part between the spray hole formed on one side and the center stopper, a conduction part that is a passage way that can introduce the medicinal solution is formed at one location or a plurality of locations in the center stopper locking part, a syringe barrel side protruding part that is protruded inside from the inner circumferential face of the syringe barrel is formed on the other end side of the syringe barrel, the plunger is provided with a plunger side protruding part that is protruded outside from the outer circumferential face of the plunger is formed at a generally central part in a direction of an axis of the
