anticonvulsants

/AE0 N T IH0 K AH0 N V AH1 L S AH0 N T S/
noun
  1. 1

    An agent that prevents, stops, or lessens convulsions.

Source: https://en.wiktionary.org/wiki/anticonvulsant, https://en.wiktionary.org/wiki/anticonvulsants