Patch and patch preparation

A low stretchable patch preparation, comprising:

• a support and an adhesive layer formed on one surface of the support,
• the adhesive layer containing a drug,
• wherein the support is a laminate film of a non-porous plastic film which is a polyethylene terephthalate film and a porous film which is a polyethylene terephthalate non-woven fabric, and
• the support and the adhesive layer have a planar outer shape comprising a plurality of straight-line sections and a plurality of curved sections,
• wherein the adhesive layer is formed on the porous film,
• wherein each straight-line section is connected to an adjacent straight-line section by a curved section,
• wherein the plurality of straight-line sections have a total length S (mm), and the plurality of curved sections have a total length W (mm),
• wherein the total length W (mm) of the curved sections of the planar outer shape of the patch to the total length S (mm) of the straight-line sections of the planar outer shape of the patch (W/S) is a ratio of greater than 0 but not more than 1.22,
• wherein straight line extensions of the straight-line sections form a polygonal planar outer shape of the support and the adhesive layer,
• wherein the curved sections are approximated by a circular arc, and
• the radius R (mm) of the circular arc is not less than 0.5 mm.