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Is Monkshood / Aconite Toxic?

Aconitum napellus — Ranunculaceae

⚠️
Highly toxic
Highly toxic to humans (aconitine): cardiotoxic and neurotoxic, lethal dose on the order of a few milligrams; all plant parts, including skin contact. No antidote, symptomatic care. Source: human toxicology literature (NCBI/PMC).

Toxicity by animal

Animal Level
DogsHighly toxic
CatsHighly toxic
HorsesHighly toxic
BirdsHighly toxic
HumansHighly toxic
⚕️ Important: This information is sourced from open plant safety databases. If your pet has ingested this plant, contact your veterinarian or ASPCA Animal Poison Control (888-426-4435) immediately.

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