Is Rotenone Toxic to Cats and Dogs?
Rotenone is moderately toxic to cats and dogs — this plant-based insecticide can cause vomiting, drooling, and breathing trouble. Call a vet if ingested.
Can cause real harm — call a vet for guidance.
Can cause real harm — call a vet for guidance.
In an emergency, do not wait.
Medical disclaimer: This tool is for general information only and isnot a substitute for veterinary diagnosis or treatment. Toxicity depends on the amount, your pet’s size, and health history. If your pet may have ingested something harmful, contact your veterinarian or a poison control hotline ((888) 426-4435 / (855) 764-7661) immediately — do not wait for symptoms to appear.
What is Rotenone?
Rotenone is moderately toxic to cats and dogs — this plant-based insecticide can cause vomiting, drooling, and breathing trouble. Call a vet if ingested.
Also known as: derris, cube root, fish poison, plant-based insecticide, rotenone dust, rotenone spray.
Symptoms to Watch For
🐕 In Dogs
- Vomiting and drooling
- Breathing difficulty or rapid breathing
- Muscle tremors in higher doses
- Lethargy and weakness
🐈 In Cats
- Vomiting and drooling
- Breathing difficulty
- Weakness and lethargy
- Tremors in higher doses
What to Do If Ingested
- Note the product name and active ingredient from the label.
- If skin exposure, bathe with mild soap and water (wear gloves).
- Call a veterinarian or poison hotline for guidance.
- Keep the pet calm and monitor breathing.
Steps apply to both cats and dogs. When in doubt, call a vet or poison hotline before acting.
When to Call the Vet Immediately
Call your veterinarian or a poison control hotline right away if you notice any of these:
- Any rotenone product was ingested
- Breathing changes, weakness, or tremors
- Persistent vomiting
Frequently Asked Questions
Frequently Asked Questions
What is rotenone and where is it found?
Rotenone is a plant-derived insecticide extracted from the roots of certain tropical plants (Derris, Lonchocarpus). It is used in some organic garden insecticides and historically as a fish poison. Though "natural," it is toxic to mammals and can cause vomiting, breathing difficulty, and tremors in pets.
Is rotenone safer because it is "natural" or plant-based?
No. Natural does not mean safe. Rotenone is a potent toxin that affects cellular energy production and the nervous system. Pets can be poisoned by ingesting treated plants or bait, or by absorbing it through the skin. Treat any exposure seriously and call a vet.
What are the warning signs of rotenone poisoning?
Vomiting, drooling, rapid or labored breathing, weakness, and in higher doses, muscle tremors. Rotenone can depress the nervous system and breathing. Call a vet immediately if any of these signs appear after exposure to a garden insecticide.
Sources
This entry is reviewed against the following authoritative veterinary sources.
Last reviewed: 2026-07-11