There are no antidotes for poisonous mushrooms. Of special concern is the ingestion by inexperienced collectors and likelihood of small children eating mushrooms that occur commonly in yards and natural areas. The increased usage of leaf and woodchip mulch in home landscapes has provided a greater opportunity for small children to come in contact with mushrooms. Mushroom poisoning can vary from a minor upset stomach to a rather painful protracted death, depending upon the species of mushroom eaten, the amount eaten, and the person who has eaten it. Onset of symptoms may be delayed a day or more after ingestion.
Some mushrooms are hallucinogenic.
Some mushrooms, nontoxic under normal conditions, will cause a toxic reaction if consumed with alcohol. Some persons may be allergic to certain types of edible mushrooms. Color of the mushroom is useless. Some of the deadliest are white. Mushrooms that animals eat are safe for humans, have no basis in fact and should be ignored.