The Antidote+ cures poison, and provides a longer immunity than super antipoisons. This potion reduces poison damage by 100% for 518 seconds (8 minutes and 38 seconds). It is very useful at many boss places such as Dagannoth Kings to increase the amount of time you can remain there. However, it is often recommended to use an Antidote++ as it is often cheaper, and about 40% more effective.