Excellent long-term survival with early transplantation
Native liver recovery possible even in severe cases (days 4-7)
Auxiliary liver transplantation may allow native liver regeneration
Interventions of limited benefit
Hemodialysis and hemoperfusion
Limited toxin removal capacity due to rapid absorption
Renal replacement for AKI management only
Plasmapheresis
May serve as bridge to transplant for coagulopathy management
Not proven to reduce mortality independently
Cimetidine (historically used)
No proven efficacy; not recommended
Benzylpenicillin dose optimization
Doses must be continuous infusion to maintain therapeutic levels
Inadequate intermittent dosing has no proven benefit
Patient Discharge Instructions
copy discharge instructions
Diagnosis and what happened
You were treated for poisoning from eating wild mushrooms containing amatoxin
Amatoxin is a toxin found in certain wild mushrooms, including the Death Cap (Amanita phalloides)
This toxin causes serious damage to the liver and kidneys
Course of illness
Symptoms typically occur in three stages: stomach illness, a period of feeling better, then liver failure days later
Even if you are feeling better now, liver damage may continue for several days
What you must do now
Take all prescribed medications as directed
Do not stop any medications without speaking to your doctor
Avoid acetaminophen (Tylenol) entirely during recovery
Follow-up appointments are mandatory
Blood tests (liver function, clotting, kidney function) at 1 week after discharge
Repeat blood tests at 2 weeks and 1 month
Return to the Emergency Department if you cannot make your follow-up appointment
Food and drink
Avoid all alcohol during liver recovery (minimum 3 months)
Alcohol is toxic to a damaged liver
Eat small, frequent meals with low-fat foods
Avoid high-protein foods if your doctor advises (encephalopathy prevention)
Drink plenty of fluids unless told otherwise
Adequate hydration supports kidney recovery
Return to the Emergency Department IMMEDIATELY if
Yellowing of skin or eyes (jaundice)
Especially if it is new or worsening
Dark brown or tea-colored urine
Sign of continuing liver damage
Confusion, unusual behavior, or difficulty thinking clearly
Could indicate liver failure affecting the brain
Nausea, vomiting, or diarrhea returning
May signal disease progression
Easy bruising, unusual bleeding, or bleeding that will not stop
Sign of clotting problems
Decreased urine output or no urination
Sign of kidney failure
Abdominal swelling or worsening abdominal pain
NEVER eat wild mushrooms unless identified by a trained expert mycologist
Cooking, boiling, drying, or freezing does NOT remove the toxin
The toxin is heat-stable and cannot be made safe by any preparation method
Toxic mushrooms look similar to edible varieties and cannot be told apart by appearance alone
Even experienced foragers have been fatally poisoned
If in doubt, do not eat it
Contact your local mycological society for safe identification
References
Guidelines and key sources
ACG Acute Liver Failure Guidelines 2023
Shingina A, Mukhtar N, Wakim-Fleming J, et al. Acute Liver Failure Guidelines. The American Journal of Gastroenterology. 2023. doi:10.14309/ajg.0000000000002340
First-line recommendation for IV silibinin in amatoxin poisoning
Primary guideline document for ALF management
Garcia J, Costa VM, Carvalho A, et al.
Amanita Phalloides Poisoning: Mechanisms of Toxicity and Treatment. Food and Chemical Toxicology. 2015. PMID 26375431
Comprehensive review of amatoxin toxicology and clinical management
Escudie L, Francoz C, Vinel JP, et al.
Amanita Phalloides Poisoning: Reassessment of Prognostic Factors and Indications for Emergency Liver Transplantation. Journal of Hepatology. 2007. PMID 17188393
Validation of Escudie prognostic criteria for transplant indication
Ganzert M, Felgenhauer N, Zilker T.
Indication of Liver Transplantation Following Amatoxin Intoxication. Journal of Hepatology. 2005. PMID 15664245
Ganzert criteria for liver transplantation indication
Wennig R, Eyer F, Schaper A, Zilker T, Andresen-Streichert H.
Clinical symptomatology and management including survival data
Mengs U, Pohl RT, Mitchell T.
Legalon SIL: The Antidote of Choice in Patients With Acute Hepatotoxicity From Amatoxin Poisoning. Current Pharmaceutical Biotechnology. 2012. PMID 22352731
Silibinin mechanism and outcomes evidence
Supporting literature
Tan JL, Stam J, van den Berg AP, et al.
Amanitin Intoxication: Effects of Therapies on Clinical Outcomes - A Review of 40 Years of Reported Cases. Clinical Toxicology. 2022. PMID 36129244
Systematic review of treatment interventions and comparative outcomes
Albertson TE, Clark RF, Smollin CG, et al.
A Ten-Year Retrospective California Poison Control System Experience With Possible Amatoxin Mushroom Calls. Clinical Toxicology. 2023. PMID 37966491
Epidemiology of amatoxin poisoning in California
Liu J, Chen Y, Gao Y, et al.
N-Acetylcysteine as a Treatment for Amatoxin Poisoning: A Systematic Review. Clinical Toxicology. 2020. PMID 32609548
Evidence base for NAC adjunctive therapy
Grabhorn E, Nielsen D, Hillebrand G, et al.
Successful Outcome of Severe Amanita Phalloides Poisoning in Children. Pediatric Transplantation. 2013. PMID 23721499
Pediatric outcomes and transplantation data
Yaneva G, Dimitrova T, Cherneva D, et al.
Recent Advances in Toxic Wild Mushroom Distribution and Social Epidemiology. International Journal of Environmental Research and Public Health. 2026. PMID 42074351
Social epidemiology and prognostic factors including diarrhea onset timing
Bonacini M, Shetler K, Yu I, Osorio RC, Osorio RW.
Features of Patients With Severe Hepatitis Due to Mushroom Poisoning and Factors Associated With Outcome. Clinical Gastroenterology and Hepatology. 2017. PMID 28189696
Outcomes data including gender and age effects
White J, Weinstein SA, De Haro L, et al.
Mushroom Poisoning: A Proposed New Clinical Classification. Toxicon. 2019. PMID 30439442
Classification system for mushroom poisoning syndromes
Kieslichova E, Frankova S, Protus M, et al.
Acute Liver Failure Due to Amanita Phalloides Poisoning: Therapeutic Approach and Outcome. Transplantation Proceedings. 2018. PMID 29407307
Combined silibinin plus penicillin G protocol outcomes
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.