Overload Potion

The Overload potion (Abbreviated Ovl, or ol, by players) is a combat boosting potion that also deals a large amount of damage to your hitpoints after drinking. It also will drain your prayer points quite a bit, so it is advised to drink the overload before you go to pk or kill monsters. You can obtain overloads from zepsity points shops for 7 ZP each or hunt the jungle demon as they drop them too.