Tobacco Toxic?

All plant parts except mature seeds are toxic, with leaves containing 0.6-9% nicotine and related alkaloids
Drying or ensiling does not deactivate toxic alkaloids, so processed plant material remains dangerous
Exposure may cause abortion in pregnant animals, and birth defects in piglets if sows ingest the plant
FAQ
Is Tobacco toxic to Humans?
Constricted pupils followed by dilated pupils, salivation, vomiting, diarrhea, bloating, increased urination, apathy, muscle weakness, uncoordinated movement, collapse, paralysis, muscle twitches, agitation, seizures, difficulty breathing, slow heart rate, high blood pressure, increased gut motility, possible late pregnancy abortion, toxins excreted in milk. Symptoms last approximately 24 hours. (Severe)
Is Tobacco toxic to Cats?
No species-specific data available. Expected symptoms include salivation, vomiting, muscle tremors, seizures, and respiratory distress consistent with nicotine poisoning. (High)
Is Tobacco toxic to Dogs?
No species-specific data available. Expected symptoms include salivation, vomiting, uncoordinated movement, seizures, and cardiac irregularities consistent with nicotine poisoning. (High)
Is Tobacco toxic to Horses?
No species-specific data available. Expected symptoms include salivation, colic, muscle weakness, seizures, and respiratory distress consistent with nicotine poisoning. (High)
Toxicity Details
Constricted pupils followed by dilated pupils, salivation, vomiting, diarrhea, bloating, increased urination, apathy, muscle weakness, uncoordinated movement, collapse, paralysis, muscle twitches, agitation, seizures, difficulty breathing, slow heart rate, high blood pressure, increased gut motility, possible late pregnancy abortion, toxins excreted in milk. Symptoms last approximately 24 hours.
No species-specific data available. Expected symptoms include salivation, vomiting, muscle tremors, seizures, and respiratory distress consistent with nicotine poisoning.
No species-specific data available. Expected symptoms include salivation, vomiting, uncoordinated movement, seizures, and cardiac irregularities consistent with nicotine poisoning.
No species-specific data available. Expected symptoms include salivation, colic, muscle weakness, seizures, and respiratory distress consistent with nicotine poisoning.
Toxicity Snapshot
First Aid & Prevention
First 30 Minutes
- • Move the exposed individual away from further plant contact immediately
- • Induce vomiting if the individual is conscious, not seizing, and ingested plant material within the last 30 minutes
- • Administer activated charcoal to bind unabsorbed toxins in the gastrointestinal tract
Contact Vet Immediately
- • If the individual experiences seizures, paralysis, or severe difficulty breathing
- • If the exposed individual is a pregnant animal, child, or has pre-existing cardiac/neurological conditions
- • If symptoms do not improve or worsen 1 hour after first aid administration
Prevention
- • Never feed raw or processed tobacco plant material or waste to livestock
- • Keep growing, dried, or processed tobacco products out of reach of children, pets, and livestock
- • Avoid using tobacco plant waste as compost or mulch in areas accessible to animals or children
Treatment & Prognosis
- • Gastrointestinal decontamination including gastric lavage and repeated activated charcoal doses as clinically indicated
- • Symptomatic supportive care: control seizures, stabilize respiratory and cardiac function, correct fluid and electrolyte imbalances
- • Monitor vital signs and neurological status for a minimum of 24 hours post-exposure
Professional Toxicology
• Nicotine and related pyridine alkaloids overstimulate then block nicotinic acetylcholine receptors in the central and peripheral nervous system
• Toxic alkaloids are not deactivated by drying or ensiling, so processed plant material retains full toxicity
• Toxins can be excreted in milk, causing secondary exposure risk for nursing young
Information from CliniTox veterinary text.
The following plants look similar and may be confused:
Related Toxic Plants
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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.


