Quite correct, but in the specific context it would be more common to say she had not been drinking that night, or she had not had anything to drink that night.

Verbal Tense Analysis: "Had not drunk" is in the past perfect tense, which indicates an action that happened before another past action. "Came" is in the simple past tense, which indicates a past action. Evaluate the Verbal Tense: The usage of "had not drunk" and "came" in the sentence is correct. The past perfect tense is appropriate because the action of "not drinking" happened before the action of "coming." A better way to say this is to remove the comma: She had not drunk that night she came to me and said wonderful words.

Yeah, it's correct