A one-piece drop dispensing closure comprising: a closure body having a closure deck and a skirt portion extending downwardly from said closure deck, said skirt being configured and arranged to secure to a neck of a container, a cap connected to said closure body via an integrally formed living hinge, said cap having an upper wall and an outer sidewall depending downwardly from said upper wall, said living hinge providing for hinged movement of said cap between a closed position and an open position, a drainback recess having a side wall depending downwardly from said closure deck and further having a bottom wall, a vent tube depending downwardly from said bottom wall, said vent tube having a vent opening at a bottom end thereof, said vent opening having a predetermined diameter, said vent tube having a predetermined length which does not extend beyond a lower peripheral edge of said skirt portion, a tubular spout extending upwardly from said bottom wall, the spout including a drop dispensing orifice configured to communicate with an interior of said container, said drop dispensing orifice having a predetermined diameter, said spout having a drip lip with a leading edge and a trailing edge, said drip lip being downwardly angled from the leading edge thereof to the trailing edge thereof, said bottom wall of said drainback recess being downwardly sloped from the leading edge of said drip lip to the trailing edge thereof, said vent tube being located on the trailing edge side of said drip lip, an arcuate tamper-evident tear strip integrally formed with said closure deck, said tear strip being connected to said closure deck by a plurality of frangible elements extending between a lower edge of the tear strip and the closure deck, said tear strip being selectively detachable from said closure deck by breaking of said frangible elements; at least one locking tab formed on an outer surface of said cap, said locking tab being positioned to engage a shoulder formed on a lower edge on said tear strip when said cap is in said closed position, said locking tab and said shoulder cooperating to prevent said cap from being moved from said closed position to said open position without detaching said tear strip from said closure deck. a closure body having a closure deck and a skirt portion extending downwardly from said closure deck, said skirt being configured and arranged to secure to a neck of a container, a cap connected to said closure body via an integrally formed living hinge, said cap having an upper wall and an outer sidewall depending downwardly from said upper wall, said living hinge providing for hinged movement of said cap between a closed position and an open position, a drainback recess having a side wall depending downwardly from said closure deck and further having a bottom wall, a vent tube depending downwardly from said bottom wall, said vent tube having a vent opening at a bottom end thereof, said vent opening having a predetermined diameter, said vent tube having a predetermined length which does not extend beyond a lower peripheral edge of said skirt portion, a tubular spout extending upwardly from said bottom wall, the spout including a drop dispensing orifice configured to communicate with an interior of said container, said drop dispensing orifice having a predetermined diameter, said spout having a drip lip with a leading edge and a trailing edge, said drip lip being downwardly angled from the leading edge thereof to the trailing edge thereof, said bottom wall of said drainback recess being downwardly sloped from the leading edge of said drip lip to the trailing edge thereof, said vent tube being located on the trailing edge side of said drip lip, an arcuate tamper-evident tear strip integrally formed with said closure deck, said tear strip being connected to said closure deck by a plurality of frangible elements extending between a lower edge of the tear strip and the closure deck, said tear strip being selectively detachable from said closure deck by breaking of said frangible elements; at least one locking tab formed on an outer surface of said cap, said locking tab being positioned to engage a shoulder formed on a lower edge on said tear strip when said cap is in said closed position, said locking tab and said shoulder cooperating to prevent said cap from being moved from said closed position to said open position without detaching said tear strip from said closure deck.