Pet safety
Is Eyebrighttoxic to cats & dogs?
Euphrasia nemorosa
Mildly toxic
Quick verdict — at a glance
- Toxic to cats?
- Yes — mildly
- Toxic to dogs?
- Yes — mildly
- ASPCA classification
- Mildly toxic to pets · botanical name Euphrasia nemorosa
Is eyebright safe for cats and dogs?
Not entirely — eyebright is mildly toxic to cats and dogs. It rarely causes serious harm, but chewing it triggers real discomfort, so keep it out of a pet's reach. This classification follows the ASPCA Toxic and Non-Toxic Plant List, the most widely used reference for companion-animal plant safety in the US and the standard most UK vets cite as well. Euphrasia nemorosa is not listed in the ASPCA Toxic and Non-Toxic Plant database. It has a long history of medicinal use in herbal eye remedies (hence the common name), and no significant toxic principles have been documented. Classified as mildly-toxic rather than pet-safe as a precaution, since its absence from the ASPCA database means confirmed non-toxic status cannot be stated.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes (mild) | Mildly toxic to pets |
| Dogs | Yes (mild) | Mildly toxic to pets |
What happens if a pet eats eyebright?
Euphrasia nemorosa is not listed in the ASPCA Toxic and Non-Toxic Plant database. It has a long history of medicinal use in herbal eye remedies (hence the common name), and no significant toxic principles have been documented. Classified as mildly-toxic rather than pet-safe as a precaution, since its absence from the ASPCA database means confirmed non-toxic status cannot be stated. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to eyebright, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate eyebright
- Remove any plant material from your pet's mouth and move eyebright out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of eyebright to the appointment so it can be treated correctly.
This page is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide rather than the plant. If you are worried, always contact a vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Pet-safe alternatives to eyebright
Want the same look without the risk? These plants are listed as non-toxic to cats and dogs by the ASPCA and have similar care needs:
- Basil — non-toxic to cats and dogs (care guide)
- Herb garden — non-toxic to cats and dogs (care guide)
- Rosemary — non-toxic to cats and dogs (care guide)
- Thyme — non-toxic to cats and dogs (care guide)
Eyebright and pets — frequently asked questions
Is eyebright toxic to cats?
Eyebright (Euphrasia nemorosa) is mildly toxic to cats according to the ASPCA. Euphrasia nemorosa is not listed in the ASPCA Toxic and Non-Toxic Plant database. It has a long history of medicinal use in herbal eye remedies (hence the common name), and no significant toxic principles have been documented. Classified as mildly-toxic rather than pet-safe as a precaution, since its absence from the ASPCA database means confirmed non-toxic status cannot be stated. Keep it out of reach and contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your cat chews it.
Is eyebright toxic to dogs?
Per the ASPCA, Eyebright (Euphrasia nemorosa) is mildly toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like eyebright is best removed from the floor and low shelves entirely.
What happens if my pet eats eyebright?
Euphrasia nemorosa is not listed in the ASPCA Toxic and Non-Toxic Plant database. It has a long history of medicinal use in herbal eye remedies (hence the common name), and no significant toxic principles have been documented. Classified as mildly-toxic rather than pet-safe as a precaution, since its absence from the ASPCA database means confirmed non-toxic status cannot be stated. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to eyebright, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate eyebright?
Stay calm. Remove any remaining plant material from your pet's mouth and take the plant away so they cannot eat more. Note roughly how much was eaten and when. Do not make your pet vomit unless a vet or poison-control specialist tells you to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice. Bringing a photo or a leaf of eyebright to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to eyebright?
If you want a similar look without the risk, good non-toxic swaps include basil, herb garden, rosemary, thyme. All of these are listed as non-toxic to cats and dogs by the ASPCA, so they suit a home where pets have access to your plants.
Full eyebright care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete eyebright care guide, or browse the full pet-safe plant library to check another plant before you buy it.