Potion
From OblivioWiki
Potions are drinkable items that can be made through Alchemy. Mixing certain ingredients together can produce either beneficial or harmful potions that will imbue a temporary boost or loss to a chracter's stats. Potions come in a variety of "levels." For example, a Weak Potion of Healing would heal less than a standard Potion of Healing.
The amount of potions that can be in effect, will be determined by your Alchemy skill. So with increased skill and by mastering Alchemy, you will achieve a skill perk, that will allow your character to use more potions simultaneously. The total amount of potions that can be used, will so be fixed, when you have mastered Alchemy. The number of potions a character can have in effect at one time is not influenced by other effects from spells or enchantments.
Potion effects will stack, but only up the amount of potions you are allowed to take, determined by your Alchemy skill.
In your inventory, potions become one of two colors: pink or green. Pink potions are "good" and beneficial to you, such as restore health. Green poisons are "bad" and harmful to your enemies, when applied to a weapon or arrow. See Poison.
Alcoholic drinks such as ale, beer, and wine are potions as well, but provide mostly negative effects.
