| Common Name | Scientific Name | Tier | Toxin | Onset | Primary Risk |
|---|---|---|---|---|---|
| Deadly Dapperling | Lepiota brunneoincarnata | Tier 1 | Alpha-amanitin | 6–24 hours | Acute hepatic failure, coagulopathy, renal failure |
| Jack-o’-Lantern | Omphalotus olearius | Tier 2 | Illudins | 1–4 hours | Violent emesis, severe dehydration |
| Fiber Caps | Inocybe rimosa / geophylla | Tier 3 | Muscarine | 15 min–2 hrs | SLUDGE syndrome, bradycardia, bronchoconstriction |
Amatoxin-Bearing Species
Delayed onset (6–24 hours). Biphasic presentation. Acute hepatic failure with coagulopathy. Liver transplant threshold monitoring required. Fatalities reported in southern Europe, predominantly autumn foraging season.
Deadly Dapperling
iNaturalist
- Aggressive IV fluids to clear toxins and maintain renal perfusion
- Activated charcoal 1 g/kg every 4 hours
- IV Silibinin 20–30 mg/kg/day to block hepatocyte toxin uptake
- IV NAC (N-acetylcysteine) 150 mg/kg loading dose
- Monitor PT/INR, ALT/AST, bilirubin, creatinine every 6 hours
- Liver transplant if INR >6.0 or encephalopathy develops
Illudin-Bearing Species
Rapid onset (1–4 hours). Severe GI syndrome with high dehydration risk. Supportive care is definitive. Frequently misidentified as edible chanterelle.
Jack-o’-Lantern
iNaturalist
- Supportive care only
- IV fluids for dehydration and electrolyte management
- Administration of antiemetics
Muscarine-Bearing Species
Rapid onset (15 min–2 hours). SLUDGE syndrome. Atropine is the definitive antidote — dose to effect until respiratory secretions dry.
Fiber Caps
iNaturalist
- Atropine is the definitive, physiological antidote
- Administer and dose strictly to effect until respiratory secretions dry
☎ Regional Admissions & Dispatch Reference
Italy (Milan): +39 02 6610 1029 · Italy (Rome): +39 06 4997 8000
Greece: +30 210 779 3777 — Athens Poison Information Centre
Portugal: +351 800 250 250 — Centro de Informação Antivenenos
Pan-European Emergency: 112
Spain: Hospital Veterinario Puchol (Madrid): +34 91 290 06 40
Portugal: Hospital Escolar Veterinário ULisboa (Lisbon): +351 21 365 2893
International/Europe Phone Consult: VPIS (Veterinary Poisons Information Service): +44 (0) 207 305 5055
🌲 Field Survival & Decontamination Protocols
- Sever the mushroom stem cleanly at the very top, flush with the gills
- Place the cap gills-down on a sheet of paper — half white, half black to capture both light and dark spore drops
- Cover with a small cup or bowl to prevent air currents
- Wait 2–6 hours. Remove and read the color of the deposited powder. Lepiota drops white spores, distinguishing it from dark-spored lookalikes.
- Skin Touch is Safe: No known mushroom can poison through intact skin. Wash hands before eating.
- Basket Contamination: If a toxic Lepiota is placed in a harvesting basket, discard the entire basket. Fragments break off and adhere to edible flesh.
- Spore Inhalation: Do not transport mature toxic specimens in tightly sealed unventilated spaces.
Species 1: Deadly Dapperling (Lepiota brunneoincarnata)
- Induce emesis only if asymptomatic and within 2 hours of ingestion
- Activated Charcoal 1–2 g/kg PO. Repeat half-doses every 4–6 hours for 24 hours
- Silibinin (IV): 50 mg/kg IV at 5 hours and 24 hours post-exposure
- N-Acetylcysteine (NAC): Loading dose 140 mg/kg IV slowly over 15–20 minutes, then 70 mg/kg IV every 4 hours for up to 17 doses
- Aggressive IV fluid diuresis. Vitamin K1 (2.5–5.0 mg/kg/day) if coagulopathy develops
Species 2: Jack-o’-Lantern (Omphalotus olearius)
- Emesis usually self-induced. If not: Apomorphine (dogs) or Dexmedetomidine (cats) if early and asymptomatic
- IV Crystalloids to correct electrolyte deficits
- Antiemetics: Maropitant 1 mg/kg SC q24h, and gastroprotectants
Species 3: Fiber Caps (Inocybe rimosa / geophylla)
- Definitive Antidote: Atropine Sulfate
- Dosing: 0.02 to 0.1 mg/kg (up to emergency max 0.2 mg/kg). Give 1/4 to 1/2 of dose IV, rest IM or SC
- Repeat every 15–30 minutes, dose to clinical effect (drying of airway secretions, normalized heart rate). Do not dose until pupils dilate.
- Complete Blood Count (CBC)
- Liver Function Tests (ALT/AST, Bilirubin)
- Kidney Panels (Creatinine, BUN)
- Coagulation Panels (PT/APTT)