Origin of quote?

I came across a quote a few weeks ago that went something like, “The more remedies that are suggested, the less likely a cure exists.” It’s been rattling around in the back of my mind, and now I can’t seem to remember where it came from.

What is the actual quote, and where did it originate from?

When a lot of remedies are suggested for a disease, that means it can’t be cured.
Anton Chekhov