- Now that's a powerful serum which will shock him back to reality.
- Nothing will do that. Lock him up!

— Dr. Sanderson (Charles Drake), Myrtle Mae Simmons (Victoria Horne)

4 seconds sound clip from the Harvey (1950) movie soundboard.

You can hear this line at 01:28:52.990 in the Blu-ray version of the movie.

Quote context

[...]

- He's the one I told you about.

- Girl.

- Doctor, what's your opinion?

- How are you feeling, Mrs. Simmons?

- Better, thank you.

- Well, in my opinion, Elwood P. Dowd is suffering from a third-degree hallucination. And I recommend formula number 9-7-7.

- Now that's a powerful serum which will shock him back to reality.

- Nothing will do that. Lock him up!

- If this shock formula brings people back to reality, that's where we want Elwood.

- Yes. If he won't see the rabbit anymore, give it to him.

- Then when Harvey comes to the door, I'll deal with him.

- Mother, won't you please stop talking about Harvey as if there were such a thing?

- Myrtle Mae, you have a lot to learn, and I hope you never learn it.

[...]