My dog ate methylphenidate – what should I do?

Updated 2026-09-30 · 1 sources

Based on: Pet Poison Helpline

Call a vet now

Call your vet or the nearest emergency vet right now. Methylphenidate is toxic to dogs.

What to do now

What to do right now

Note what was eaten, how much, and when.
Bring the packaging with you.
Keep your dog calm.
Remove any methylphenidate that is left.

Don't

Do not make your dog vomit unless a vet tells you to.
Do not give your dog any human medicine.

Why it can be dangerous

Methylphenidate is a central nervous system stimulant used in human medicine for attention deficit hyperactivity disorder and attention deficit disorder.^[1] Methylphenidate is very similar to amphetamines.^[1] Methylphenidate is also used in veterinary medicine for narcolepsy, cataplexy, and hyperkinesis-hyperactivity.^[1]

Signs to watch for

Vomiting
Diarrhea
Drooling
Tremors
Seizures
Hyperactivity
Panting
Agitation

Where it is found

Human medicine
Veterinary medicine

If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

OkPaw is on Android now – an iPhone version is on its way.

Common questions

How much methylphenidate is dangerous?

Call your vet or the nearest emergency vet for advice about the amount eaten.

Which signs should I watch for?

Watch for vomiting, diarrhea, drooling, tremors, seizures, hyperactivity, panting, or agitation.

How soon should I act?

Call your vet or the nearest emergency vet now rather than waiting for signs.

Sources

Pet Poison Helpline

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

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