Veronal

He was by now so worn out that he could not resist my firmness. I gave him a sufficient dose of veronal to insure his unconsciousness for several hours. I thought that was the best service I could render him.

She died of an overdose of veronal. She's been taking it lately for sleeplessness. Must have taken too much.

I have seen the Brazilian press photograph of Zweig and Lotte, his second wife, lying dead of their overdoses of veronal on two pushed-together single iron bedsteads, he on his back, mouth a little agape, in a sweat-stained shirt and knitted tie, she on his shoulder in a floral wrap and clean hair, and you can practically hear the ceiling fan going round.