At least some content in this article is derived from information featured in Harry Potter: Hogwarts Mystery. Spoilers will be present within the article.
A bezoar is a stone-like mass taken from the stomach of a goat, that acts as an antidote to most poisons, with Basilisk venom being one notable exception. This is the reason why bezoars are used in the preparation of the Antidote to Common Poisons. This object is usually made of hair, plant fibre, or similar indigestible matter that stays in the gut of an animal and forms a hard ball or "stone".
HistoryPotions Classroom store cupboard, as well as at least two in the hospital wing. In 1991, Severus Snape asked Harry Potter where one would to find a bezoar in Harry's first ever Potions class, in order for him to chastise Potter for not paying attention during his class. In 1994, in a Potions exam, Harry forgot to add a bezoar to his potion, because he was too focused on thinking about asking Cho Chang to the Yule Ball, which subseqeuntly earned him bottom marks in this class for his dismal performance.
As a student at Hogwarts School of Witchcraft and Wizardry, Severus Snape, under his alias "The Half Blood Prince", wrote "Just shove a bezoar down their throats." across the list of antidotes in his copy of Advanced Potion-Making. During the 1996-1997 school year, during one of Harry's sixth year N.E.W.T. class about antidotes, Harry, who was unable to understand Golpalott's Third Law, fetched a bezoar from the cupboard and showed it to Professor Horace Slughorn as the answer to the poison he was supposed to be analysing. This gained Harry Slughorn's admiration and ten points to Gryffindor for "sheer cheek."
On 1 March, 1997, Ron Weasley was poisoned when he drank some poisoned oak-matured mead that was intended for Albus Dumbledore. Harry, remembering the above mentioned incident in Potions class, quickly found the bezoar he had given Professor Slughorn and shoved it down Ron's throat, saving his life.
Bezoars are undigested clumps of matter that accumulate inside a digestive system, similar to a cat's hairballs. They are used in Chinese Herbology, and are claimed to remove toxins from the body. The word "bezoar" may come from the Persian pâdzahr (پادزهر), which literally means "protection from poison."
- Harry Potter and the Philosopher's Stone (First mentioned)
- Harry Potter and the Philosopher's Stone (film) (Mentioned only)
- Harry Potter and the Philosopher's Stone (video game) (First appearance) (GBC version only)
- Harry Potter and the Goblet of Fire
- Harry Potter and the Half-Blood Prince
- Harry Potter and the Half-Blood Prince (film)
- Harry Potter and the Half-Blood Prince (video game)
- Fantastic Beasts: Cases from the Wizarding World
- Harry Potter: Hogwarts Mystery (Mentioned only)
- The Art of Harry Potter Mini Book of Graphic Design