FFO Name: Antidote
Price: 75 / 50
Pure potions are very useful because they cure the Poison status and can be used in battle with the DRINK command. They become less useful when you learn the PURE spell which does the same thing. Keep 5 on hand in the beginning, then move on to 10, then 20 when you can afford it. Like the heal potion, they are available in every item shop. That includes these towns:
In the Japanese version the Pure Potion is called Antidote. These things return in every later Final Fantasy, but were removed from FF4 EasyType / FF2 US.