The movie is about a playboy who gets 'a taste of his own medicine' when the girl he falls in love with jilts him for another guy.
If he loses the case, he should just 'take his medicine' and stop complaining.
Their research has led to many important advances in modern 'medicine'.
(..) -l'm sorry. ma'am. -All right. Mr. McMurphy. your medication. What's in the horse pill? lt's just medicine. It's good tor you. Yeah. but l don't like the idea ot taking something it l don't know what it is. Don't get upset. Mr. McMurphy. l'm not getting upset. Miss Pilbow. (..)1975 One Flew Over the Cuckoo's Nest