常じょう用よう者しゃ

noun

constant user; addict

Refers to someone who uses something habitually or is addicted to it, often with a negative connotation.

• 彼かれはたばこの常じょう用よう者しゃだ。

  He is a habitual smoker.

• この薬くすりの常じょう用よう者しゃは副ふく作さ用ように注ちゅう意いが必ひつ要ようだ。

  Constant users of this medicine need to be careful about side effects.