Pet emergency
My cat ate Dwarf Horsetail — what to do
Step by step
- Take dwarf horsetail away and remove any plant material from your cat'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 cat ate dwarf horsetail — FAQ
Is dwarf horsetail poisonous to cats?
Yes — Dwarf Horsetail (Equisetum scirpoides) is regarded as mildly toxic to cats, based on genus- and family-level toxicity data. Equisetum scirpoides, like all Equisetum species, contains thiaminase and the alkaloid equisetine. These can cause thiamine deficiency and neurological symptoms if consumed in large quantities, particularly by cats, dogs, and horses. The ASPCA does not individually list this species; veterinary guidance treats the entire Equisetum genus as moderately toxic. Keep away from pets that chew plants and supervise accordingly.
How serious is it if my cat ate dwarf horsetail?
Dwarf Horsetail is mildly toxic, so most cats 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 cat 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. Equisetum scirpoides, like all Equisetum species, contains thiaminase and the alkaloid equisetine. These can cause thiamine deficiency and neurological symptoms if consumed in large quantities, particularly by cats, dogs, and horses. The ASPCA does not individually list this species; veterinary guidance treats the entire Equisetum genus as moderately toxic. Keep away from pets that chew plants and supervise accordingly. Any worsening or persistent symptoms warrant an immediate vet visit.
Should I make my cat 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 dwarf horsetail well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.
Type any plant to see what the ASPCA says about it and your cat.
Related
- Is dwarf horsetail toxic to cats? — full toxicity detail
- Dwarf Horsetail 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