Percutaneous pharmaceutical preparation

A percutaneous administration type pharmaceutical preparation in tape form comprising a flexible backing, which is not permeable by the active ingredient, and an adhesive base layer formed on said flexible backing;

• said adhesive base layer consisting essentially of an adhesive base material and an active ingredient compatible with said adhesive base material, wherein said adhesive base material is a copolymer containing 2-ethylhexyl acrylate (EHA) in a concentration of 45 to 80 mole %, a (meth)acrylate monomer in a concentration of 0 to 35 mole %, which is at least one selected from the group consisting of propyl acrylate, butyl acrylate, hexyl acrylate, 2-ethyy butyl acrylate, heptyl acrylate, octyl acrylate, nonyl acrylate, decyl methacrylate, and lauryl methacrylate, and N-vinyl-2-pyrrolidone (VP) in a concentration of 20 to 55 mole %, with the sum of the mole % of EHA, (meth)acrylate and VP being 100, and with the EHA/VP ratio by mole % being in the range from 80/20 to 45/55, and said active ingredient is isosorbide dinitrate (ISDN) which is contained in a concentration of 13 to 30% by weight in said adhesive base material and in a concentration of 80 to 100% of the saturated solubility concentration of ISDN in said adhesive base material.