光ひかり毒どく性せい

noun

phototoxicity; photoirritation

Medical term for the toxic reaction caused by light exposure, often in the context of chemicals or drugs.

• この薬くすりには光ひかり毒どく性せいがあるため、服ふく用よう後ごは直ちょく射しゃ日にっ光こうを避さけてください。

  This medicine has phototoxicity, so please avoid direct sunlight after taking it.