# Potion of Diminution *Potion, rare* - **Weight**: 0.5 lbs. When you drink this potion, you gain the "reduce" effect of the [Enlarge/Reduce](enlarge-reduce-xphb.md) spell for `1d4` hours (no [Concentration](conditions.md#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. *Source: Dungeon Master's Guide (2024) p. 287. Available in the Free Rules (2024)*