PlantFunSudan Grass Toxic?
Non-toxic to cats and dogs, but confirmed toxic to horses per ASPCA data
Toxic active components are cyanogenic glycosides and accumulated nitrates
Requires 1 week to 6 months of consistent ingestion to trigger adverse effects in horses
FAQ
Is Sudan Grass toxic to Humans?
No confirmed toxicity data for humans is available; large quantity ingestion may cause mild gastrointestinal upset (Non-toxic)
Is Sudan Grass toxic to Cats?
No known toxic effects; small accidental ingestion is not expected to cause harm (Non-toxic)
Is Sudan Grass toxic to Dogs?
No known toxic effects; small accidental ingestion is not expected to cause harm (Non-toxic)
Is Sudan Grass toxic to Horses?
Loss of nerve function in hind legs and bladder, stumbling when forced to move, progressive complete hind limb paralysis, fetal deformities, or fetal death after 1 week to 6 months of ingestion (Moderate)
Toxicity Details
No confirmed toxicity data for humans is available; large quantity ingestion may cause mild gastrointestinal upset
No known toxic effects; small accidental ingestion is not expected to cause harm
No known toxic effects; small accidental ingestion is not expected to cause harm
Loss of nerve function in hind legs and bladder, stumbling when forced to move, progressive complete hind limb paralysis, fetal deformities, or fetal death after 1 week to 6 months of ingestion
Toxicity Snapshot
First Aid & Prevention
First 30 Minutes
- • Immediately remove all access to Sudan Grass for horses if accidental ingestion is suspected
- • Monitor exposed horses for gait abnormalities, difficulty urinating, or stumbling within 30 minutes of discovery
- • Collect samples of suspected ingested Sudan Grass for veterinary testing if available
Contact Vet Immediately
- • Your horse has consumed Sudan Grass continuously for 1 week or longer
- • Your horse shows clinical signs including stumbling, hind limb weakness, or abnormal bladder function
- • You suspect a pregnant mare has ingested any quantity of Sudan Grass
Prevention
- • Never use Sudan Grass as forage, hay, or pasture feed for horses
- • Inspect horse pastures regularly to remove any accidentally growing Sudan Grass plants
- • Source hay from reputable suppliers to avoid contamination with Sudan Grass material
Treatment & Prognosis
- • Complete permanent removal of Sudan Grass from the horse's diet per veterinary instruction
- • Supportive care including nerve function supplements and physical therapy for affected hind limbs as prescribed
- • Close monitoring of pregnant mares for fetal viability, with obstetric intervention if required
Professional Toxicology
• Cyanogenic glycosides metabolize to release cyanide, impairing cellular oxygen uptake and damaging nerve tissue over time
• Accumulated nitrates convert to nitrites in the equine gut, reducing blood oxygen transport and causing systemic tissue damage
• Chronic exposure leads to progressive degeneration of nerves controlling hind limb movement and bladder function
Information from CliniTox veterinary text.
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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.