Potion of diminution

A potion of diminution was a potion that temporarily reduced its drinker's size.

Description
The liquid of a potion of diminution was mostly clear, with a red area that contracted to the size of a small dot and then expanded until it colored the entire vial. This process could not be stopped even by shaking the vial.

Powers
Drinking a potion of diminution granted the effects of the reduce part of the enlarge/reduce spell for up to 4 hours, with no need for the drinker to keep concentrating on the spell.