Pet Food & Safety

Dog Ate Autumn Crocus: Colchicine Multi-Organ Triage

2 min read Updated Clinically reviewed • Standards
When Is a Pet Emergency? Red Flags for Dogs and Cats
When Is a Pet Emergency? Red Flags for Dogs and Cats
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This guide is general education for pet owners. If your pet has urgent symptoms, possible poisoning, injury, breathing trouble, collapse, severe pain, or sudden decline, contact a licensed veterinarian or local emergency service.

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Dog Ate Autumn Crocus: Colchicine Multi-Organ Triage

Clinical Verdict: EXTREMELY FATAL (Widespread Multi-Organ Destruction)

Dogs CANNOT ingest Autumn Crocus. Distinct from the spring crocus, Autumn Crocus contains the potent antimitotic alkaloid colchicine. Ingestion causes catastrophic multi-organ failure and has a high mortality rate.

Toxic Mechanism & Agent

  • Toxic Agent: Colchicine and Related Alkaloids
  • Mechanism of Action: Binds to tubulin dimers, arresting cellular microtubule assembly and halting mitosis in rapidly dividing cells throughout the bone marrow, gastrointestinal tract, liver, and kidneys.
Botanical specimen of purple Autumn Crocus with dissected flower and cut corm on dissection board beside metric ruler and label
Figure 1: Botanical dissection of toxic Autumn Crocus (Colchicum autumnale). Unlike benign spring crocus, all parts—especially the underground corm—contain colchicine, an antimitotic toxin that halts cellular division.

Clinical Signs & Timeline

  • Onset Time: Delayed clinical onset; 2 to 24 hours post-ingestion.
  • Primary Symptoms: Severe bloody diarrhea, abdominal collapse, hypovolemic shock, pancytopenia (bone marrow suppression), acute respiratory distress syndrome (ARDS), hepatic and renal failure.

Emergency Triage Protocol

IMMEDIATE ER VISIT (Life-Threatening Emergency)
Immediate aggressive hospital decontamination and supportive therapy. There is no specific antidote; patients require continuous IV fluids, gastrointestinal protectants, broad-spectrum antibiotics, and whole blood/plasma transfusions.

Veterinary critical care clinicians managing recumbent canine patient in ICU with infusion pumps, plasma transfusion, and telemetry
Figure 2: Veterinary ICU multi-organ failure stabilization. Intensive fluid diuresis, plasma transfusions, and hemodynamic telemetry stabilize critical canine patients through colchicine-induced multi-organ toxicity.

Strict Rule S1 Warning

NEVER induce vomiting at home using hydrogen peroxide without direct instruction from a DVM. Inappropriate emesis can cause fatal aspiration pneumonia, esophageal chemical burns, or gastric rupture. Always seek professional veterinary diagnosis.

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