Active Consumables are items separate from Scrolls and Potions. These have a direct effect on some aspects of your character (such as your equipment, healing, buffs, etc.) or have other effects on enemies as well (hurting, movement impairing effects, etc.).
See the Legendaries page for legendary consumables.
Enemy Target EditBlinding Powder
Self Target EditOffering
Orb of Clarity
Stat Increase EditReinforcement Patch