Tales of Tolgard
Potions are usually single-use magic items that provide the drinker with a helpful magical boost. Effects include but are not limited to: strength, toughness, speed, or healing.
Several profession create potions: herbalists and alchemists have been known to brew them up from time to time. However, to create magical potions usually requires an infusion of divine magic from a spellcaster such as a cleric or a druid.
Potions can be used by anyone as long as they can drink them.