When processed through the body, Ibotenic Acid is converted into Muscimol which makes you trip. This conversion can cause one to sweat, and create a feeling of nausea depending on how the mushroom is consumed. Consuming the wet mushroom WILL NOT work; it is generally made into a powder.
Ibotenic Acid is commonly contained in Amanita mushrooms. This includes but is not limited to the Amanita Muscaria (Super Mario Toadstool Mushroom), Amanita Crenulata, or Amanita Pantherina; (variation Multisquamosa, etc.)