Provided is a medicine volatilization device capable of efficiently volatilizing a medicine from a medicine holding body and sufficiently diffusing the medicine even being used in a relatively large space or outdoors. The medicine volatilization device (100) comprises a medicine holding layer (10), a medicine holding body (50) and a rotation driving part (60). The medicine holding layer (10) is formed with voids (11) capable of holding a volatile medicine. The medicine holding body (50) is formed with a ventilation layer (20) provided with gaps (21) having sizes greater than those of the voids (11). The rotation driving part (60) is utilized to rotate the medicine holding body (50). The shapes and the sizes of the medicine holding body (50) and the rotation speed of the rotation driving part (60) are set, so that a centrifugal effect of 10 to 150 (G) can be obtained while the medicine holding body (50) is rotated.提供一種即使是較大的空間或戶外中的使用，也能由藥劑保持體效率高地使藥劑揮散，且可使藥劑充分地擴散之藥劑揮散裝置。 一種藥劑揮散裝置100，包含： 具有：形成有可保持揮散性藥劑的間隙11之藥劑保持層10，與形成有比間隙11大的尺寸的空隙21之通氣層20之藥劑保持體50；以及 使藥劑保持體50旋轉之旋轉驅動部60； 藥劑保持體50的形狀及尺寸以及旋轉驅動部60的轉速被設定，以在藥劑保持體50的旋轉時得到10~150(G)的離心效應。 【代表圖】
