An oral administration coupler (1200) comprising an ENFit compatible coupling (1212) (or ISO 80369-3 formatted coupling) and an elongate straw or flexible conduit (1216) extending therefrom, which is beneficial when delivering fluids to the back of the mouth. The entire length (L9) of the tube is between 30-120 mm. The length L10 of the hub (e.g., extending between syringe coupling end 1212 and applicator coupling end 1214) is between 20-30 mm.
