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Glory Lily Poisoning in Dogs: Colchicine Signs, Treatment, Prognosis

PawAI Lab
8 min read

Learn how colchicine in the glory lily disrupts cell division in dogs, what clinical signs may develop across multiple body systems, how a veterinarian may approach treatment, and what the prognosis may be.

Quick Answer

The glory lily (Gloriosa superba) contains colchicine, an antimitotic compound that inhibits microtubule formation and disrupts cell division throughout the body. All parts of the plant are toxic, with the tubers carrying the highest concentration. Ingestion may cause severe vomiting, diarrhea, multi-organ effects, and bone marrow suppression. Because colchicine poisoning can be life-threatening, contact a veterinarian or animal poison-control service immediately after any exposure.

Before using any tool, contact a veterinary professional if your dog may have eaten a glory lily.

  • US: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • UK: Animal PoisonLine (01202 509000) or your nearest veterinary emergency clinic
  • Canada: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • AU: Animal Emergency Centre or your regular vet
  • EU: Contact your nearest veterinary emergency service

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Safety Verdict

Toxic. The glory lily (Gloriosa superba), also known as flame lily or climbing lily, contains colchicine in all parts of the plant. Colchicine is an alkaloid with antimitotic properties, meaning it inhibits the formation of microtubules. Microtubules are structural components that cells need to divide and to maintain normal function. When colchicine binds to tubulin (the protein building block of microtubules), it prevents microtubule assembly, effectively arresting cell division.

This mechanism has the greatest impact on tissues with rapidly dividing cells. The gastrointestinal lining, which constantly renews itself, is among the first affected, which is why vomiting and diarrhea are common early signs. Bone marrow, which produces blood cells continuously, may also be affected, potentially leading to bone marrow suppression. In serious cases, the effects can extend to multiple organs, including the liver, kidneys, heart, and respiratory system.

The tubers contain the highest concentration of colchicine, but the stems, leaves, flowers, and seeds all carry the compound. No part of the glory lily can be considered safe for dogs.

What Should the Owner Do Now?

  1. Contact a veterinarian or animal poison-control service immediately. Colchicine poisoning is time-sensitive, and early intervention may significantly improve outcomes.
  2. Do not induce vomiting unless a veterinarian or poison-control professional directly instructs you to do so. Colchicine can act quickly, and improper vomiting induction may cause additional harm.
  3. Do not give food, milk, salt, charcoal, or any home remedy. None of these are proven treatments for colchicine toxicity, and some may interfere with veterinary care.
  4. Collect relevant information (see the section below) so the veterinary team can assess the situation accurately.
  5. Bring your dog to the veterinarian promptly, as colchicine toxicity typically requires hospitalization, intravenous fluids, and ongoing monitoring.

What Signs May Occur?

Signs of glory lily poisoning may develop within 2 to 24 hours of ingestion. The onset can be delayed, and the progression of signs may unfold over several days as colchicine affects different tissues.

Gastrointestinal signs often appear first:

  • Vomiting, which may be severe or persistent
  • Diarrhea, potentially containing blood
  • Drooling
  • Abdominal pain and tenderness
  • Reduced appetite
  • Lethargy

Signs of multi-organ involvement may develop as colchicine spreads through the body:

  • Weakness, staggering, or difficulty standing
  • Rapid, irregular, or labored breathing
  • Pale gums or signs of bruising (related to bone marrow suppression)
  • Changes in urine output or color (kidney involvement)
  • Yellowing of the skin or eyes (liver involvement)
  • Abnormal heart rate or rhythm

Bone marrow suppression may become apparent days after ingestion, as the production of red blood cells, white blood cells, and platelets declines. This can lead to anemia, increased susceptibility to infection, and bleeding tendencies.

Absence of early signs does not necessarily rule out serious risk. Because colchicine can produce delayed and progressive effects, a dog that initially appears well may still develop significant complications.

What Information Should Be Ready?

When you contact a veterinarian or poison-control service, having the following details available can help them assess the situation:

  • Dog's details: species, breed, approximate age, and body weight
  • Plant involved: glory lily (Gloriosa superba), including which parts were consumed (tubers, stems, leaves, flowers, or seeds)
  • Estimated amount: best guess of how much plant material was ingested, particularly whether tubers were involved
  • Time of ingestion: when the exposure occurred, or the window during which it may have happened
  • Current symptoms: any vomiting, diarrhea, weakness, breathing changes, bleeding, or collapse
  • Medical history: any pre-existing liver or kidney disease, blood disorders, or current medications

Provide honest estimates rather than precise measurements. The veterinary team can work with approximate information.

Differences That May Affect Risk

Several factors may influence how a dog responds to glory lily exposure:

  • Plant part: The tubers contain the highest concentration of colchicine, so ingestion of tubers may carry the greatest risk. However, all parts are toxic.
  • Amount ingested: Larger ingestions are more likely to produce severe, multi-system effects, though even small amounts of tuber can be significant.
  • Body size: Smaller dogs may be more affected by a given amount of colchicine, though the compound's effects are not reliably predictable by size alone.
  • Time to treatment: Earlier veterinary intervention is generally associated with better outcomes, particularly before multi-organ effects develop.
  • Individual sensitivity: Reactions to colchicine can vary considerably, and some dogs may experience more severe or rapid progression than others.
  • Pre-existing conditions: Dogs with existing liver, kidney, or blood disorders may be more vulnerable to additional organ stress.

Because of these variables, any known or suspected ingestion should be treated as potentially serious.

When to Contact a Veterinarian

Contact a veterinarian or animal poison-control service immediately if your dog has chewed or eaten any part of a glory lily. Do not wait for symptoms to appear.

Emergency signs that require urgent veterinary attention include:

  • Persistent or bloody vomiting and diarrhea
  • Weakness, staggering, or collapse
  • Rapid, irregular, or labored breathing
  • Pale, white, or bruised gums
  • Marked reduction in urine output
  • Yellowing of the skin or eyes
  • Seizures or loss of consciousness

Non-urgent follow-up: Because colchicine can produce delayed effects, including bone marrow suppression that may appear days later, even a dog that seems well after ingestion should be evaluated. Repeated blood work over several days may be recommended to monitor for progressive complications.

FAQ

How does colchicine from the glory lily affect dogs?

Colchicine is an antimitotic compound that inhibits microtubule formation, disrupting cell division. This primarily affects rapidly dividing tissues such as the gastrointestinal lining and bone marrow. The result can be severe vomiting and diarrhea, followed in some cases by multi-organ effects and bone marrow suppression. The tubers contain the highest concentration of colchicine.

What is the prognosis for a dog with glory lily poisoning?

The prognosis depends on the amount ingested, the plant part involved, and how quickly treatment begins. Dogs that receive prompt and intensive veterinary care have a better chance of recovery. Because colchicine can cause delayed bone marrow suppression and multi-organ effects, monitoring over several days is often necessary. A veterinarian can provide a prognosis based on the individual situation.

How is glory lily poisoning treated in dogs?

Treatment is primarily supportive and may include intravenous fluids to maintain hydration and support organ function, medications to control vomiting, and monitoring of blood work to detect bone marrow suppression or organ damage. In some cases, the veterinarian may consider decontamination measures if the ingestion was recent. Treatment is tailored to the individual dog and the severity of signs.

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Disclaimer

This article and the PawAI Toxicity Checker provide general safety information and cannot determine an individual pet's toxicity risk or replace a veterinarian or animal poison-control service. If exposure may have occurred, contact an appropriate professional promptly, even if your pet appears well.