tranquillized

verb
  1. 1

    To calm (a person or animal) or put them to sleep using a drug.

    โ€œThe escaped lion was finally tracked down, tranquilized, and safely returned to the zoo.โ€

  2. 2

    To make (something or someone) tranquil.

  3. 3

    To become tranquil.

Source: https://en.wiktionary.org/wiki/tranquilize, https://en.wiktionary.org/wiki/tranquillize, https://en.wiktionary.org/wiki/tranquillized