A potion of human control allows the imbiber to control up to 32 levels/hit dice of humans/humanoids/demi-humans as if a charm person spell had been cast, and the human types to be controlled are entitled to saving throws versus magic. 

Any pluses on hit dice are rounded down to the lowest whole die, i.e. 1+2  = 1, 2+6 = 2. 

This potion lasts for from 5-30 rounds.

The type of human(s) which con be controlled is randomly determined on the table below:

1-2 Dwarves

3-4 Elves/Half-elves

5-6 Gnomes

7-8 Halflings

9-10 Half-orcs

11-16 Humans

17-19 Humanoids (gnolls, orcs, goblins, etc.)

20 Elves, Half-elves, and Humans