Major Recombobulator

The Major Recombobulator is a trinket that dispels polymorph effects on a friendly target, and restores 375 to 625 health and mana. Note that it cannot be used on yourself to dispel polymorph spells which entail loss of character control such as a mage's sheep polymorph, but can be used to dispel polymorphs which don't entail loss of character control such as that caused by the Discombobulator Ray.

Source
Major Recombobulator is made by engineers with a skill of 275.

The recipe for this item is taught by, an item dropped occasionally by Mizzle the Crafty, in Dire Maul. It is also found (somewhat more often) within the Gordok Tribute.