There's nothing to worry about, madame. If it's poison, he's certainly rid of it by this time after using the stomach pump.
9 seconds sound clip from the Monsieur Verdoux movie soundboard.
You can hear this line at 01:24:29 in the Blu-ray version of the movie.
Quote context
[...]
- For the love of Julius Caesar, what happened to you?
- I don't know, madame. I was up in my room bleaching my hair, and it fell out.
- Well, get a doctor! You better get two doctors!
- Just keep on taking the medicine for two or three days.
- She feels all right, but she doesn't look so good.
- Strange you didn't have any bad effects.
- Oh, nothing affects me. I'm lucky, Doctor.
[...]