Home › Medications › Diazepam (Valium)
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Never give without veterinary direction

Also sold as Valium, Diastat, Diazemuls

This drug does have veterinary uses, but the product and the amount have to be chosen by a vet who knows your dog. There is no at-home dose.

DogSafe severity score
5/10

Diazepam has real veterinary uses, including as an emergency seizure treatment, but it is not something to give at home. Heavy sedation and wobbliness are the usual picture after an unplanned dose, and a minority of dogs become agitated instead.

Source-backed guidance. Not individualized veterinary advice.(more)

Compiled from veterinary poison-control and medical references, including the ASPCA Animal Poison Control Center, Pet Poison Helpline, and Merck Veterinary Manual.

Part of Antidepressants and anxiety medication on our medication safety hub.

Part of our guide to Dog Ate Antidepressants, Stimulants or Sleep Medication.

If your dog ate Diazepam (Valium), call now

Do not wait for symptoms and do not wait until you have filled in the form below. Call first, then use the checklist while you are on the phone.

Exposure details to have ready

These are the questions a veterinarian or poison-control operator will ask. Fill in what you know and leave the rest blank. This tool does not estimate a dose or a risk score: medication risk depends on the exact ingredient, strength, and formulation, so the assessment has to come from the clinician on the call.

Signs so far
Before you call
  • Keep the package, blister pack, or prescription bottle. The strength and the full ingredient list are what make the advice specific.
  • Do not induce vomiting unless a veterinarian or poison-control professional tells you to. It is the wrong move for several medications and can cause harm on its own.
  • Do not give milk, food, salt, hydrogen peroxide, or any home remedy on your own.
  • Do not give a second dose of anything to make up for one you think was missed.
  • Count what is left in the packet, so the number missing can be worked out.

Your exposure summary

Read this down the phone or paste it into a message to your vet. It stays on your device; nothing here is sent to DogSafe.

Why Diazepam (Valium) needs caution

Diazepam is a benzodiazepine, and vets do use it in dogs, most often to interrupt a seizure. After an accidental exposure the expected effects are sedation, unsteadiness, weakness and slowed breathing. A proportion of dogs show the opposite, becoming restless or agitated, which is a recognized paradoxical reaction and not a sign the dose was small. The practical worry with a very sedated dog is the airway: a dog too drowsy to swallow properly should be seen rather than left to sleep it off.

Part of the Antidepressants guide

For related dog-safety questions and product-by-product answers, see the complete antidepressants guide.

Signs to watch for

Sedation, wobbliness, weakness, vomiting, slowed or labored breathing, or a heart rate that seems unusually fast or slow

Related items

Check the exact item or ingredient before assuming two similar exposures carry the same risk.

What to do next

Move the container out of reach, count what is missing, note the strength and the time, and call with the packet in front of you.

🚨Step-by-step: what to do in the first 10 minutes →
Animal poison control

A closer look at diazepam (valium)

Diazepam is a benzodiazepine, and vets do use it in dogs, most often to interrupt a seizure. After an accidental exposure the expected effects are sedation, unsteadiness, weakness and slowed breathing. A proportion of dogs show the opposite, becoming restless or agitated, which is a recognized paradoxical reaction and not a sign the dose was small. The practical worry with a very sedated dog is the airway: a dog too drowsy to swallow properly should be seen rather than left to sleep it off. The details below use the specific facts for this exposure, rather than treating it like every other medication question.

1. Start with the exact exposure

For a closely related comparison, read Clonazepam (Klonopin). There is no at-home dose for this drug, including where a vet has prescribed it before. The right amount depends on your dog's weight, the exact product, and what else your dog takes, and it has to be set by a vet who knows the case.

2. Use the facts to decide whether to monitor or call

Another helpful reference is Lorazepam (Ativan). Prevent any further access and call for advice. Do not give a dose of your own, and do not induce vomiting unless a veterinary professional directs you to. Call for any exposure that was not the dose your vet set, for a chewed container, or for sedation, weakness, unsteadiness, vomiting, or changes in breathing or heart rate.

3. If the details are uncertain

Follow the first 10 minutes guide. Move the container out of reach, count what is missing, note the strength and the time, and call with the packet in front of you.

FAQ

How much Diazepam (Valium) is dangerous?

There is no at-home dose for this drug, including where a vet has prescribed it before. The right amount depends on your dog's weight, the exact product, and what else your dog takes, and it has to be set by a vet who knows the case.

Can I treat this at home?

Prevent any further access and call for advice. Do not give a dose of your own, and do not induce vomiting unless a veterinary professional directs you to.

When should I call the vet?

Call for any exposure that was not the dose your vet set, for a chewed container, or for sedation, weakness, unsteadiness, vomiting, or changes in breathing or heart rate.

SourcesUpdated August 10, 2026
  • Merck Veterinary Manual — toxicoses in animals from human antidepressants, anxiolytics and sleep aids
  • ASPCA Animal Poison Control Center — human medications
  • Pet Poison Helpline — top 10 human medications poisonous to pets
Read DogSafe's sources and review policy →
Compiled from veterinary poison-control and medical reference sources, including the ASPCA Animal Poison Control Center, the Pet Poison Helpline, and the Merck Veterinary Manual. This is general educational information, not a diagnosis or a substitute for examination by your veterinarian. DogSafe's severity ratings are our own assessment, calculated from published guidance and your dog's weight. In an emergency, call ASPCA Animal Poison Control at 888-426-4435 or the Pet Poison Helpline at 855-764-7661.