Pet emergency
My dog ate Equisetum hyemale — what to do
Step by step
- Take equisetum hyemale away and remove any plant material from your dog's mouth so they cannot eat more.
- Note roughly how much was eaten and when — this helps the vet judge the risk.
- Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
- Call your vet, or a poison-control line — (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK. Both charge a consultation fee. Follow their advice.
- Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.
This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet — or the ASPCA Animal Poison Control Center on (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK.
My dog ate equisetum hyemale — FAQ
Is equisetum hyemale poisonous to dogs?
Yes — Equisetum hyemale (Equisetum hyemale) is regarded as mildly toxic to dogs, based on genus- and family-level toxicity data. The ASPCA lists Scouring Rush (Equisetum hyemale) and Field Horsetail as toxic to horses via thiaminase, which destroys thiamine and causes weakness, tremors, staggers and potentially death after prolonged grazing. Dogs and cats are not listed as affected, but because the plant contains an established toxic principle, treat ingestion with caution and verify with a vet.
How serious is it if my dog ate equisetum hyemale?
Equisetum hyemale is mildly toxic, so most dogs get short-lived mouth irritation, drooling, and vomiting rather than a life-threatening reaction. It is still worth a vet call to be safe, especially if your dog ate a lot or symptoms persist.
What symptoms should I watch for?
Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. The ASPCA lists Scouring Rush (Equisetum hyemale) and Field Horsetail as toxic to horses via thiaminase, which destroys thiamine and causes weakness, tremors, staggers and potentially death after prolonged grazing. Dogs and cats are not listed as affected, but because the plant contains an established toxic principle, treat ingestion with caution and verify with a vet. Any worsening or persistent symptoms warrant an immediate vet visit.
Should I make my dog vomit?
No — do not induce vomiting unless a vet or a poison-control specialist specifically tells you to. The wrong action can make things worse. Call your vet, or (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK, and follow professional advice.
How do I stop this happening again?
Keep equisetum hyemale well out of reach, or swap it for an ASPCA non-toxic plant — see the best dogs-safe plants list.
Type any plant to see what the ASPCA says about it and your dog.
Related
- Is equisetum hyemale toxic to dogs? — full toxicity detail
- Equisetum hyemale and pets — the complete ASPCA pet-safety guide
- Best plant app for pet owners — which apps actually flag ASPCA toxicity before you buy the plant