PupkeeperToxic
Dog ate medicated oils and pain patches (methyl salicylate)? Toxic: what to do now
Toxic. Medicated oils and pain patches often contain methyl salicylate, an aspirin-like drug, plus menthol; licking or chewing them can poison dogs.
If your dog ate or touched this, call your vet or a pet poison line now
United States
Poison lines in other countries: United Kingdom, Canada, Australia, New Zealand, Belgium, France, JM, PR, Singapore, Switzerland, TT, VI
Medicated oils and pain patches (methyl salicylate) and dogs: key facts
- Verdict
- Toxic · Call your vet or a poison line
- What it can do
- Vomiting, diarrhea, not eating, belly pain and fever. All 7
- How fast
- Within 4 to 6 hours for salicylate poisoning
- What to do now
- Call your vet or a pet poison line now. All steps
- Sources
- Merck Veterinary Manual, VCA Animal Hospitals, Pet Poison Helpline. Reviewed 9 October 2026.
What should I do if my dog ate medicated oils and pain patches (methyl salicylate)?
- Call your vet or a pet poison line now.
- Wipe any oil off your dog's fur and stop it licking.
- Keep the bottle or patch box and bring it; check the label for methyl salicylate, menthol and camphor.
- Call quickly. Vets may try to clear the drug within the first hour.
Don't
- Don't make your dog vomit unless a vet tells you to.
- Never put medicated oils, rubs or patches on your dog.
Symptoms to watch for
- Vomiting
- Diarrhea
- Not eating
- Belly pain
- Fever
- Fast breathing
- Low energy
When signs appear: Within 4 to 6 hours for salicylate poisoning
Why
Methyl salicylate (oil of wintergreen) is a salicylate, the same chemical group as aspirin, and menthol is also toxic to dogs. Some oils and patches contain camphor too.
Sources
- Merck Veterinary Manual: Toxicosis in Animals From Human Topical Agents
- VCA Animal Hospitals: Aspirin Poisoning in Dogs
- Pet Poison Helpline: The Dangers of Dogs Chewing on Vicks
Guide reviewed 9 October 2026. Page updated 7 November 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.