PROBLEM TO BE SOLVED: To provide novel means capable of easily controlling a light volume.SOLUTION: The pharmaceutical for hyperthermia includes, as an active ingredient, a transmission light volume variable member 10 by which transmissivity of control object light decreases at a target temperature for use in hyperthermia, and includes a temperature-responsive material 11 and a light-absorbing pyrogenic substance 12, where the light-absorbing pyrogenic substance is the substance of generating heat by the control object light. A heating method of a heating object includes the steps of: bringing the transmission light volume variable member into contact with a heating object and applying the control object light to the transmission light volume variable member to heat the heating object to a prescribed target temperature, where the light-absorbing pyrogenic substance is a substance for generating heat by the control object light. The transmission light volume variable member including the temperature-responsive material is provided for controlling the transmission volume of the control object light. The control method of the light volume includes the steps of: applying the control object light to the transmission light volume variable member and adjusting the temperature of the transmission light volume variable member to control the volume of the control object light transmitting through the transmission light volume variable member.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】光量を容易に制御することができる新たな手段の提供【解決手段】温熱療法に用いられる標的温度で被制御光の透過率が低下する温度応答性材料11と吸光発熱物質12とを含む透過光量可変部材10を有効成分として含有し、吸光発熱物質が被制御光によって発熱する物質である温熱療法用製剤;透過光量可変部材を加熱対象物に接触させるステップ、及び透過光量可変部材に被制御光を照射して透過光量可変部材を発熱させることにより、加熱対象物を所定の標的温度に加熱するステップを含み、吸光発熱物質が被制御光によって発熱する物質である加熱対象物の加熱方法;温度応答性材料を含む被制御光の透過量を制御するための透過光量可変部材;並びに透過光量可変部材に対して被制御光を照射するステップ、及び透過光量可変部材の温度を調節して透過光量可変部材を透過する被制御光の量を制御するステップを含む構成とする。【選択図】図1
