23/10/2026
🚨Important Message 🚨
🍁🐴 ⚠️ SYCAMORE POISONING IN HORSES ⚠️🐴🍁
With high winds and storm season well upon us, and following a recent case, we wanted to remind horse owners of the dangers associated with sycamore trees, particularly at this time of year.
🍂 What is sycamore poisoning?
Sycamore seeds (commonly known as helicopters) and seedlings can contain a toxin called hypoglycin A, which can cause Atypical Myopathy – a serious and potentially fatal muscle disease in horses.
⚠️ Signs to watch out for include:
🐴 Muscle weakness, stiffness or trembling
🐴 Reluctance to move or difficulty walking
🐴 Lethargy and depression
🐴 Dark red or brown urine
🐴 Sweating and an increased heart rate
🐴 In severe cases, horses may become recumbent (unable to stand)
💉 Can it be treated?
There is currently no specific antidote for sycamore poisoning, so early recognition and supportive veterinary treatment are essential.
Treatment may include:
💊 Intravenous fluid therapy to support hydration and kidney function
💊 Pain relief and anti-inflammatory medication where appropriate
💊 Nutritional and metabolic support, including glucose and vitamins where indicated
💊 Intensive monitoring and nursing care in more severe cases
🍁 Prevention is key!
✔️ Check grazing areas for sycamore trees and fallen seeds.
✔️ Fence off affected areas where possible.
✔️ Provide adequate supplementary forage to reduce the likelihood of horses eating seeds.
✔️ Be particularly vigilant during autumn when seeds are falling.
🚨 Sycamore poisoning is a veterinary emergency. If you notice any of these signs or suspect your horse has ingested sycamore seeds, contact us immediately.
🚨Do NOT make an affected horse walk, as this may worsen muscle damage.
Please share to help raise awareness and keep all horses safe! 🐴🍂