DMG
Potion
Rare
When you drink this potion, you gain the "reduce" effect of the Enlarge/Reduce spell for 1d4 hours (no concentration required). The red in the potion's liquid continuously contracts to a tiny bead and then expands to color the clear liquid around it. Shaking the bottle fails to interrupt this process.
Cost: 501 gp – 5,000 gp