Medicine

What Is the Correct Dosage of Diazepam (Valium) for Dogs?

María Besteiros
By María Besteiros, Veterinary assistant and groomer. Updated: September 27, 2025
What Is the Correct Dosage of Diazepam (Valium) for Dogs?
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Diazepam is a medicine that affects the central nervous system. It's usually used as a sedative, muscle-relaxant or anti-anxiety medicine for dogs. If your dog is going through some health issues and your vet has recommended using diazepam, this is the perfect article for you.

In this AnimalWised article we're going to give you the complete guide to this medicine for dogs. We'll go through its uses, correct dosage of diazepam for dogs, side effects, storage and more. Keep reading to learn more!

You may also be interested in: Diazepam for Cats - Cat Valium Dosage and Uses
Contents
  1. What is diazepam?
  2. What is diazepam for dogs for?
  3. Diazepam dosage for dogs
  4. Diazepam contraindications for dogs
  5. Diazepam side effects for dogs
  6. How to store diazepam

What is diazepam?

Diazepam is a medicine that affects the central nervous system. It mainly causes a relaxing, sedative and anticonvulsant effect. It is used in human medicine and also in veterinary medicine. Brand names include: Valium, Diastat, E Pam Tab, Meva and Vivol.

Diazepam belongs to the group of benzodiazepines, which are drugs that act on the central nervous system. It acts as a depressant of this system, achieving a quick sedative, anxiolytic, anticonvulsant and relaxing effect on the dog. Therefore, this medicine can be used for both physical and psychological disorders.

Diazepam for dogs is available in various formats for administration: oral or injectable. In either case, the veterinarian will decide depending on your dog's condition.

As diazepam is also used for humans, many people wonder if they can give human diazepam to their dog. The answer is no. To avoid further health issues you must follow your veterinarian's close instructions. They will choose the correct dosage and even the brand. Never self medicate your dog as it may bring more issues than they had before. In the worst cases, it can result in their deaths.

Additionally, diazepam is sometimes used in emergency situations to quickly stabilize a dog experiencing severe anxiety or a seizure. This makes it a valuable tool in certain veterinary scenarios, but again, it must be administered under professional guidance to ensure the safety and health of your pet.

What is diazepam for dogs for?

Diazepam is used to treat certain disorders with a psychological origin. These include:

  • Nervousness
  • Anxiety
  • Phobias
  • Certain behavioral problems
  • Seizures
  • Pre-anesthetic protocol

As always, the veterinarian is the only professional that can properly diagnose your dog and choose the correct medication for their condition.

To learn more about home remedies for anxious dogs, we recommend you read our articles on why your dog is anxious and how to calm a dog down. You can also watch our video below about how to calm your dog down when they're feeling anxious.

In some cases, diazepam may also be used to help dogs with sleep disorders. Its sedative effects can promote better sleep, especially in dogs suffering from insomnia due to anxiety or stress. However, this should only be considered when other non-pharmaceutical methods have been explored.

Diazepam dosage for dogs

It is very important that we scrupulously follow the veterinarian's instructions regarding dosage and administration guidelines. The dose will depend on your dog's weight, the administration process of the drug and the pathology to be treated.

For a rough estimate, administration through an injection to control seizure disorders is administered at a rate of 0.5 mg per kg of your dog's weight. Oral administration of diazepam in tablets for dogs can be up to 2.2 mg per kg.

We reiterate the importance of going to the veterinarian so that they can properly indicate the most suitable dose of diazepam for your dog and their issue. Incorrect administration can have very serious consequences.

Moreover, the dosage might be adjusted over time based on your dog's response to the medication and any side effects observed. Regular veterinary check-ups are crucial to ensure that the treatment remains effective and safe for your pet.

Diazepam contraindications for dogs

Regarding its contraindications, it is not recommended to give diazepam to puppies, elderly dogs, or any dog with liver, heart or kidney problems. It is also not usually recommended for epileptic, debilitated, dehydrated, anemic dogs, dogs with serious respiratory difficulties or with obesity. Of course, it cannot be given to animals that have previously manifested any allergic reaction to diazepam.

When it comes to dogs with glaucoma, the veterinarian will have to determine the relevance of the treatment, evaluating the advantages and disadvantages. The same happens with pregnant or lactating females. Likewise, if your dog is taking any other drugs, you must let your veterinarian know as there can be certain issues with two intersecting drugs.

It should be noted that diazepam can also interact with certain herbal supplements and over-the-counter medications, potentially altering its effectiveness or increasing the risk of side effects. Always discuss any additional treatments or supplements your dog is receiving with your veterinarian to prevent adverse interactions.

Diazepam side effects for dogs

As we've previously mentioned, diazepam will interfere with your dog's behavior. It's very important to follow your veterinarian's instructions closely as we're dealing with medications that can have side effects and negative consequences when not handled properly. Some of these side effects may include:

  • Drop in blood pressure
  • Cardiac abnormalities
  • Unwanted behavioral changes
  • Lack of coordination or disorientation

When given to a dog for a long time, it's possible for them to become dependent on this medication. Overdose on diazepam can lead to a depression in the central nervous system, causing confusion or even putting the dog in a coma. It can also decrease their respiratory and heart rate.

If you notice any abnormalities, contact your veterinarian as soon as possible.

In some rare cases, dogs may exhibit paradoxical reactions to diazepam, such as increased anxiety, agitation, or aggression. These reactions are not common but should be monitored closely if your dog is new to this medication. If such behaviors occur, it's important to inform your veterinarian immediately to reassess the treatment plan.

What Is the Correct Dosage of Diazepam (Valium) for Dogs? - Diazepam side effects for dogs

How to store diazepam

You must store diazepam for dogs at room temperature between 59°F and 86°F (15°C and 30°C). Remember to also protect it from direct sunlight. The injectable form should not be stored in plastic bottles or syringes.

Furthermore, ensure that the medication is kept out of reach of children and pets to prevent accidental ingestion. Always check the expiration date before administering and dispose of any expired or unused medication properly, according to local regulations or your veterinarian's advice.

This article is purely informative. AnimalWised does not have the authority to prescribe any veterinary treatment or create a diagnosis. We invite you to take your pet to the veterinarian if they are suffering from any condition or pain.

If you want to read similar articles to What Is the Correct Dosage of Diazepam (Valium) for Dogs?, we recommend you visit our Medicine category.

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What Is the Correct Dosage of Diazepam (Valium) for Dogs?