Mushroom, Plant and Berry Ingestions: Urgent Steps (No Identification Guidance)

Call 911 now if the person has collapsed, has a seizure, has trouble breathing or cannot be woken. [1] Otherwise call Poison Help at 1-800-222-1222 (US) right away, or go to the nearest emergency department. [2] Do not induce vomiting. MedlinePlus says not to make a person throw up unless poison control or a health care provider says to. [3] Do not wait for symptoms. [4]

This page gives risk and urgent steps only. It does not help you identify a mushroom, plant or berry, and it does not describe any plant's appearance. If you are thinking about harming yourself, call or text 988. [5]

Why waiting is risky

• Symptoms can be delayed. A poison center at the University of Kansas Health System says symptoms from poisonous mushrooms may not develop for a couple of days, and by then serious damage may already have occurred. [6] A 2025 UC Davis Health Q&A with a medical toxicologist says nausea and vomiting that start more than six hours after eating is classic for one deadly mushroom species (Amanita phalloides), and that this delay is "a red flag for toxicologists." [2] Do not read an early lack of symptoms as a sign of safety.
• No simple antidote. The same article says there is no simple antidote for this kind of poisoning, and that treatment is mostly supportive, such as IV fluids and critical care, sometimes including liver transplant. [2]
• Cooking does not fix it. The Kansas poison center says cooking, canning, pickling, freezing and drying poisonous mushrooms does not remove toxins. [6]
• Identification is hard. The same center says even very experienced mushroom gatherers can have a hard time deciding whether a mushroom is safe to eat. [6]
• Animals are no guide. An animal eating a mushroom does not mean it is safe for humans. [6]
• Plants and berries can poison too. MedlinePlus lists indoor and outdoor plants among poisons. [7] As one example, its entry on blue nightshade (Solanum dulcamara) says the poison is in all parts of the plant, especially the fruit and leaves. [3] The NHS also lists certain plants and mushrooms among causes of poisoning. [8]
• Allergy is separate. Some people are allergic to mushrooms that are not considered poisonous. [6]

Urgent steps

1. Check breathing and alertness. Call 911 for collapse, seizure, trouble breathing or if the person cannot be woken. [1]
2. Call Poison Help (1-800-222-1222) or go to the emergency department. [2] Both the Kansas and UC Davis sources point to poison control. [6]
3. Do not make the person vomit. [1] [8]
4. Have the facts ready. MedlinePlus lists the person's age, weight and condition, the name of the plant if known, the time it was swallowed and the amount. [3] See What to tell Poison Help when you call.
5. Ask before you collect anything. A sample is useful only if the poison center asks for it. UC Davis says doctors can work with the poison center to identify the mushroom and advise on what symptoms to watch for. [2] Do not taste anything to "check", and do not guess a name from a photo or app.
6. Keep checking breathing until help arrives. [8]
7. Think of everyone. If a child or pet may have eaten the same thing, tell the poison center. For pets, see Pet and animal poisoning.

What this page does not do

Proper evidence not found, in the poison-center and MedlinePlus pages we read, for any safe at-home test of whether a wild mushroom, plant or berry is edible. We do not give foraging or identification instructions. Identification is a job for the poison center and for local experts such as botanists or extension services, not for guesswork.

Related reading

• Plant and mushroom poisoning: never rely on a photo or app
• Toxic herbs and plant poisoning: what to know
• Poisoning: what to do first
• Amanita muscaria, muscimol and ibotenic acid (poisoning symptoms and documented serious cases)
• Poison help by country