What do you do for the antidote for uncommon poisons antidote on Harry Potter and the Prisoner of Azkaban?

In "Harry Potter and the Prisoner of Azkaban," the antidote for uncommon poisons is referred to as "the antidote for uncommon poisons." It's a potion that Professor Snape teaches his class about, emphasizing its complexity and the need for precise ingredients. The antidote is not explicitly detailed in the text, but it highlights the importance of potion-making skills in dealing with various magical ailments.