Potions

Aid
Aid (3) Single Use
Sold by general merchants, holy merchants, and special merchants in all four chapters.
Antidote
Neutralize Poison (5) Single Use
Sold by general merchants, holy merchants, blacksmiths, nature merchants, magic merchants, and special merchants in all four chapters.
Barkskin
Barkskin (3) Single Use
Sold by general merchants and nature merchants in all four chapters.
Bless
Bless (2) Single Use
Sold by general merchants, holy merchants, and special merchants in all four chapters.
Bull's Strength
Bull's Strength (3)
Sold by magic merchants in all four chapters.
Cat's Grace
Cat's Grace (3)
Sold by magic merchants and rogue merchants in all four chapters.
Clarity
Clarity (3)
Sold by holy merchants, magic merchants, and special merchants in all four chapters.
Cure Light Wounds
Cure Light Wounds (2) Single Use
Sold almost everywhere.
Cure Moderate Wounds
Cure Moderate Wounds (3) Single Use
Sold by general merchants, holy merchants, blacksmiths, and nature merchants in all four chapters.
Cure Serious Wounds
Cure Serious Wounds (5) Single Use
Sold by general merchants, holy merchants, nature merchants, rogue merchants, and blacksmiths in all four chapters.
Cure Critical Wounds
Cure Critical Wounds (7) Single Use
Sold by general merchants, holy merchants, blacksmiths, and nature merchants in all four chapters.
Eagle's Splendor
Eagle's Splendor (3)
Sold by magic merchants and nature merchants in all four chapters.
Endurance
Endurance (3)
Sold by magic merchants in all four chapters, and by blacksmiths in chapters three and four.
Fox's Cunning
Fox's Cunning (3)
Sold by magic merchants in all four chapters.
Heal
Heal (11) Single Use
Sold by general merchants in chapters one and two, by special merchants in chapters one through three, and by holy merchants in chapters two through four.
Invisibility
Invisibitity (3)
Sold by magic merchants, rogue merchants, and special merchants in all four chapters.
Lesser Restoration
Lesser Restoration (3)
Sold by holy merchants, nature merchants, and special merchants in all four chapters.
Lore
Identify (3)
Sold by magic merchants, special merchants, and rogue merchants in all four chapters.
Speed
Haste (5)
Sold by magic merchants, special merchants, and rogue merchants in all four chapters.
Owl's Wisdom
Owl's Wisdom (3)
Sold by magic merchants and nature merchants in all four chapters.