Nausea, Heartburn, Indigestion... (25 player)

Nausea, Heartburn, Indigestion... (25 player) is a dungeon & raids achievement earned for defeating Professor Putricide without using Regurgitated Ooze on the Abomination in 25-player mode.

Trivia
The name is a reference to Pepto-Bismol and some of the symptoms it treats.