My dog ate drain / oven / toilet-bowl cleaner (lye, acids) — what should I do?
🚨 RED — Go to an emergency vet NOW
Strong alkalis and acids cause severe burns of the mouth, throat and stomach.
What to do now
- Call an emergency vet or animal poison control right now, even if your dog seems fine — signs can be delayed.
- Head to the nearest emergency vet; call ahead on the way.
- Remove any remaining material and keep packaging/labels — the vet will want product names and amounts.
- Do not induce vomiting unless a vet or poison-control expert tells you to.
- Note the time it was eaten, roughly how much, and your dog's weight.
Why it's a problem
Strong alkalis and acids cause severe burns of the mouth, throat and stomach.
Symptoms to watch for
Drooling, pawing at mouth, vomiting, refusing food, breathing trouble.
When: Minutes
⚠️ Do NOT induce vomiting.
Frequently asked questions
Is drain / oven / toilet-bowl cleaner (lye, acids) dangerous for dogs?
Yes. Strong alkalis and acids cause severe burns of the mouth, throat and stomach. Treat it as an emergency and contact an emergency vet or animal poison control immediately.
What are the symptoms if my dog ate drain / oven / toilet-bowl cleaner (lye, acids)?
Drooling, pawing at mouth, vomiting, refusing food, breathing trouble.
How soon do symptoms appear after a dog eats drain / oven / toilet-bowl cleaner (lye, acids)?
Minutes
Is there anything else to know about drain / oven / toilet-bowl cleaner (lye, acids)?
Do NOT induce vomiting.
What should I do if my dog ate drain / oven / toilet-bowl cleaner (lye, acids)?
Call an emergency vet or animal poison control right now, even if your dog seems fine — signs can be delayed. Head to the nearest emergency vet; call ahead on the way.
Who can I call for help?
ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661, both 24/7 (fees may apply), or your nearest emergency vet.
Dose guidance
No reliable dog-specific threshold is published for home use, so any amount should be discussed with your vet or a poison hotline.
Sources
Last verified against these sources: 2026-10-13. Where sources disagree, PawPanic uses the more conservative guidance.
Also known as: drano, liquid plumr, oven cleaner, lye, toilet bowl cleaner · Category: Chemical · Last reviewed 2026-10-14