Were you looking for the quest item version of  [Zort's Protective Elixir]?

• Zort's Protective Elixir
• Binds when picked up
• Use: Protects from the digestive fluids of Jormungar in the Crystal Vice.

Source

Quest reward from:  [74] Apply This Twice A Day

Patches and hotfixes

/ Patch 3.0.2 (14-Oct-2008): Added 

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB