Lemborexant is used in the treatment of insomnia.
How Lemborexant works Lemborexant inhibits the action of orexin, a chemical that regulates sleep signals in the brain and promotes wakefulness. Once orexin's action is inhibited, the brain no longer receives wake-up signals, which facilitates sleep.
Common side effects of Lemborexant include drowsiness, headache, tiredness, nightmares, and suicidal behaviors.