Henbane Bell Toxic?

Updated 2026-03-06| 3 min read| 4,422 found this helpful
Scopolia carniolica Jacq. (syn. Hyoscyamus scopolia)
1

All plant parts are toxic, especially the root, and toxicity is fully retained in dried fodder.

2

Total alkaloid content ranges from 0.3-0.8%, peaking at early flowering and fruiting stages.

3

Ingestion can cause severe nervous system disruption, paralysis, and potentially fatal respiratory failure.

FAQ

Is Henbane Bell toxic to Humans?

No specific human symptom data recorded; expected effects include rapid breathing, rapid heart rate, agitation, extreme thirst, dry mucous membranes, constipation, dilated pupils, paralysis, and possible fatal respiratory paralysis consistent with tropane alkaloid poisoning. (Severe)

Is Henbane Bell toxic to Cats?

No cat-specific toxicity or symptom data available in the referenced dataset. (High)

Is Henbane Bell toxic to Dogs?

No dog-specific toxicity or symptom data available in the referenced dataset. (High)

Is Henbane Bell toxic to Horses?

Tachypnea (rapid breathing), tachycardia (rapid heart rate), agitation, mania, increased thirst, dry mucous membranes, constipation, mydriasis (dilated pupils), paralysis, possible death from respiratory paralysis. (Severe)

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Toxicity Details

Humans
Severe

No specific human symptom data recorded; expected effects include rapid breathing, rapid heart rate, agitation, extreme thirst, dry mucous membranes, constipation, dilated pupils, paralysis, and possible fatal respiratory paralysis consistent with tropane alkaloid poisoning.

Cats
High

No cat-specific toxicity or symptom data available in the referenced dataset.

Dogs
High

No dog-specific toxicity or symptom data available in the referenced dataset.

Horses
Severe

Tachypnea (rapid breathing), tachycardia (rapid heart rate), agitation, mania, increased thirst, dry mucous membranes, constipation, mydriasis (dilated pupils), paralysis, possible death from respiratory paralysis.

Toxicity Snapshot

Toxic PartsAll parts of the plant, with the highest toxin concentration in the root
Exposure RouteIngestion is the primary exposure route; contact with damaged plant material and mucous membranes may also trigger mild to moderate toxic effects
Toxic CompoundsL-Hyoscyamine; Atropine (D,L-Hyoscyamine); Scopolamine; Scopoletin; Chlorogenic acid

First Aid & Prevention

First 30 Minutes

  • • Induce vomiting or administer activated charcoal if ingestion occurred within 2 hours and the affected individual is fully conscious
  • • Do not give any morphine or opiate-containing medications, as they interact dangerously with the plant's toxins
  • • Closely monitor breathing, heart rate and consciousness while seeking urgent professional care

Contact Vet Immediately

  • • Ingestion of any amount of the plant is confirmed or suspected
  • • Symptoms including rapid breathing, dilated pupils, agitation or paralysis appear after exposure
  • • Exposure occurs in high-risk species including horses, cattle and sheep

Prevention

  • • Remove all Scopolia carniolica plants from pastures, livestock grazing areas, and spaces accessible to children or pets
  • • Avoid feeding hay or dried fodder that may be contaminated with this plant, as toxicity remains intact when dried
  • • Learn to distinguish this plant from visually similar species to prevent accidental exposure

Treatment & Prognosis

  • • Decontamination via gastric lavage or activated charcoal administration to reduce toxin absorption
  • • Symptomatic supportive care including monitoring and support of respiratory and cardiac function
  • • Administration of physostigmine as an antidote where clinically appropriate
  • • Avoid all morphine and opiate-containing medications due to dangerous synergistic effects with the plant's acetylcholine antagonist toxins
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Professional Toxicology

Scientific NameScopolia carniolica Jacq. (syn. Hyoscyamus scopolia)
AliasesEuropean Scopolia、Russian belladonna、Glockenbilsenkraut、Krainer Tollkraut、Scopolie de Carniole、Scopolie du Caucase
Toxicity Grade
HumansSevere
CatsHigh
DogsHigh
HorsesSevere
Target Organs
Respiratory systemCardiovascular systemCentral nervous systemGastrointestinal tractEyes
Mechanism of Action

• Tropane alkaloids act as acetylcholine receptor antagonists, disrupting normal parasympathetic nervous system function

• Toxins produce dangerous synergistic effects when combined with opiate compounds

• Toxicity remains stable in dried plant material, making contaminated fodder a persistent risk

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: High poisoning risk; may develop severe symptoms including paralysis and fatal respiratory paralysis after ingestion
Sheep: High poisoning risk; susceptible to the same severe toxic effects as cattle and horses following ingestion
Goats: No species-specific data available; expected to be susceptible to toxic effects similar to other ruminants
Confusion Risk

The following plants look similar and may be confused:

Deadly nightshade Atropa belladonna
Both are toxic Solanaceae species with similar foliage and bell-shaped flowers; Scopolia carniolica produces smaller pale yellow to brownish flowers, while deadly nightshade has purple bell-shaped flowers and glossy black berries.
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Data Sources

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.

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