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Is Elderberry Toxic to Dogs? Signs and What to Do

PawAI Lab
8 min read

Find out whether elderberry poses a risk to dogs, how its cyanogenic glycosides and lectins affect the digestive and nervous systems, and what a veterinarian may recommend after exposure.

Quick Answer

Elderberry is potentially harmful to dogs. The stems, leaves, bark, roots, and unripe berries contain cyanogenic glycosides (including sambunigrin) and lectins that can cause vomiting, diarrhea, and weakness. Fully ripe berries are generally regarded as lower in toxicity, but any part of the plant can pose a risk. If your dog has chewed elderberry stems or eaten berries, contact a veterinarian or an animal poison-control service promptly.

Before using any tool, contact a veterinary professional if your dog may have chewed or swallowed elderberry.

  • 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

Potentially Harmful. Elderberry refers to several shrubs and small trees in the Sambucus genus, such as Sambucus nigra (European elderberry) and Sambucus canadensis (American elderberry). They are grown both ornamentally and for their berries, which are used in preserves and syrups after cooking. The plant contains two groups of compounds of concern: cyanogenic glycosides, including one called sambunigrin, and lectins.

Cyanogenic glycosides are substances that can release cyanide when plant tissue is damaged and metabolized. The stems, leaves, bark, roots, and unripe berries contain the highest concentrations, which is why these parts are generally regarded as more dangerous. Lectins are proteins that can irritate the digestive tract. Fully ripe berries are lower in these compounds, which is why ripe, cooked elderberries are sometimes used in human foods, but ripe berries are not risk-free for dogs, and raw or unripe berries, along with any stems and leaves, should be treated as potentially harmful. Because concentration varies across the plant, the risk depends heavily on which part a dog consumed and how much.

What Should the Owner Do Now?

  1. Contact a veterinarian or animal poison-control service immediately. Because the more toxic parts of elderberry can affect the nervous system, early professional guidance matters.
  2. Do not induce vomiting unless a veterinarian or poison-control professional directly instructs you to do so.
  3. Collect relevant information (see the section below) so the veterinary team can assess the situation accurately.
  4. Do not give milk, food, salt, charcoal, oil, or any home remedy unless a veterinary professional advises it. These are not proven treatments for elderberry toxicity and may interfere with care.
  5. Note which part of the plant was consumed. Whether your dog ate stems, leaves, unripe berries, or ripe berries significantly affects how the situation is assessed.

Because effects can vary depending on the plant part, do not wait for symptoms to develop before seeking advice.

What Signs May Occur?

Elderberry toxicity signs usually begin within a few hours of ingestion, though the timeline can vary with the amount and plant part involved.

Early signs may include:

  • Nausea and drooling
  • Vomiting
  • Diarrhea or abdominal discomfort
  • Reduced appetite

If a larger amount of the more toxic parts, such as stems, leaves, bark, or unripe berries, has been consumed, additional signs may appear:

  • Weakness or depression
  • Unsteady gait or apparent disorientation
  • Rapid or heavy breathing, which may reflect effects on oxygen use in the body
  • In serious cases, collapse or seizures

Not every dog will show every sign, and the severity depends largely on the plant part and quantity. Ripe berries are more likely to cause mild digestive upset, whereas stems and leaves carry greater potential for the more serious effects associated with cyanogenic glycosides. The absence of early symptoms does not rule out developing toxicity, so monitoring and professional follow-up are important.

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 efficiently:

  • Dog's details: species, breed, approximate age, and body weight
  • Plant involved: elderberry (Sambucus), or a photo of the shrub and any berries for confirmation
  • Part of plant consumed: stems, leaves, bark, roots, unripe berries, or ripe berries, since concentration varies widely
  • Estimated amount: best guess of how much was chewed or swallowed
  • Time of exposure: when the chewing or ingestion occurred
  • Current symptoms: vomiting, diarrhea, weakness, breathing changes, or unsteady gait
  • Medical history: any existing conditions and current medications

Provide honest estimates rather than precise measurements. The veterinary team can work with approximate information to determine the best course of action.

Differences That May Affect Risk

Several factors may influence how severely a dog reacts to elderberry:

  • Plant part: Stems, leaves, bark, roots, and unripe berries contain the highest concentrations of cyanogenic glycosides and lectins, while fully ripe berries are generally lower in these compounds.
  • Amount ingested: A few ripe berries may cause mild digestive upset, while a larger amount of stems or leaves can produce more serious effects.
  • Body size: Smaller dogs may experience more pronounced effects from a given quantity, though elderberry can affect dogs of any size.
  • Degree of chewing and ripeness: Thorough chewing of plant tissue releases more toxin, and unripe berries carry greater risk than ripe ones.
  • Pre-existing conditions: Dogs with existing digestive, liver, or kidney conditions may be more vulnerable.

No combination of these factors reliably predicts the outcome, so any known or suspected ingestion should be discussed with a veterinary professional.

When to Contact a Veterinarian

Contact a veterinarian or animal poison-control service immediately if your dog has chewed elderberry stems, leaves, bark, or roots, or eaten unripe berries. Do not wait for symptoms to appear.

Emergency signs that require urgent veterinary attention include:

  • Persistent vomiting or diarrhea
  • Weakness, collapse, or depression
  • Unsteady gait or apparent disorientation
  • Rapid, heavy, or labored breathing
  • Seizures
  • Lethargy or unresponsiveness

Non-urgent follow-up: If your dog ate a small number of fully ripe berries and appears normal, a consultation is still recommended to confirm whether monitoring is appropriate, since reactions can vary.

FAQ

Is elderberry toxic to dogs?

Elderberry is potentially harmful to dogs. The stems, leaves, bark, roots, and unripe berries contain cyanogenic glycosides (including sambunigrin) and lectins that can cause vomiting, diarrhea, and, in more serious cases, weakness and breathing changes. Fully ripe berries are lower in these compounds but are not risk-free. A veterinarian should be consulted after any exposure.

Are ripe elderberries safe for dogs?

Fully ripe elderberries are generally regarded as lower in toxicity than stems, leaves, and unripe berries, which is why ripe, cooked berries are sometimes used in human foods. However, ripe berries are not considered risk-free for dogs and may still cause digestive upset. Raw berries and any other part of the plant should be avoided. Consult a veterinarian if your dog has eaten any part of an elderberry plant.

What should I do if my dog chews elderberry?

Contact a veterinarian or animal poison-control service promptly. Note which part of the plant was consumed, since stems and leaves carry greater risk than ripe berries. Do not induce vomiting or give home remedies unless a veterinarian directs it. Seek emergency care if weakness, unsteady gait, or breathing changes develop.

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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.