The present invention provides a patch preparation that has an extremely low moisture permeability, has a sufficient ODT effect, is excellent in drug releasability, and has a preferred handleability. The patch preparation of the present invention includes a support； and a pressure-sensitive adhesive layer containing an adherent polymer and a drug on one surface of the support, wherein: the support has a polyester base layer, an inorganic oxide layer, and a polyester nonwoven fabric layer in the stated order； the polyester base layer has a thickness of 1. 0 µm to 16 µm； and the pressure-sensitive adhesive layer is laminated on the polyester base layer.
