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Xanax for Dogs: What It Treats, Dosage, and Side Effects

Chris Vanderhoof, DVM, MPHGhanasyam Bey, DVM
Written by Chris Vanderhoof, DVM, MPH | Reviewed by Ghanasyam Bey, DVM
Updated on May 8, 2025
A woman is petting her dog while laying on the sofa.
RuslanDashinsky/E+ via Getty Images

Key takeaways:

  • Xanax (alprazolam) is a medication that can relieve anxiety in dogs, especially anxiety related to events like fireworks or veterinary visits.

  • Xanax is usually given to dogs in pill form. Your veterinarian will determine the correct dosage for your dog.

  • Drowsiness is the most common effect of Xanax, which is usually the desired result.

Like humans, dogs feel scared or anxious sometimes. Xanax (alprazolam) is a medication that can help with these fears. But it’s important to be informed about Xanax if your dog is taking it or if you’re thinking about giving it to them. Read on to learn what to expect if your dog is prescribed Xanax.

Xanax (alprazolam) for dogs, at a glance

Common names

Xanax (alprazolam)

What it treats

Anxiety, panic, and fear, especially related to events like fireworks and travel

How it comes (forms)

Tablet, oral liquid

Dosage

Depends on a dog’s weight

Common side effects

Drowsiness, increased appetite, temporary difficulty with balance

Average cost

$11-$18 for 30 tablets

An infographic explaining Xanax for dogs, including its alternative names, uses, dosage forms, administration guidelines, and common side effects.

What is Xanax for dogs, and how does it work?

Xanax, a brand-name form of alprazolam, is a type of benzodiazepine medication that can have a calming effect on dogs.

Xanax works by causing a depression of the central nervous system. This leads to reduced anxiety, sedation, and muscle relaxation. It also has some mild anticonvulsant (anti-seizure) effects. Xanax produces these effects by binding to certain receptors in the body, especially in the brain.

Xanax is a Schedule 4 controlled substance. This means it’s subject to more strict regulations than many other medications. So there are restrictions on how your veterinarian can prescribe and refill Xanax for your dog.

Xanax is FDA approved to treat people, but it is not FDA approved for pets. Veterinarians can still prescribe Xanax to pets off-label. Prescribing medications off-label is common in veterinary medicine.

What is Xanax used for in dogs?

Xanax is usually prescribed to dogs as a short-term medication for sedation or reducing anxiety.

Your dog may be prescribed Xanax for:

  • Managing panic, fear, or aggression related to a specific situation

  • Reducing anxiety during car or plane travel

  • Reducing anxiety during veterinary exams and short procedures (like nail trims)

  • Reducing anxiety during a triggering event, such as fireworks or thunderstorms

  • Managing anxiety while starting treatment with a long-term medication

What is the standard Xanax dosage for dogs, and how is it given?

A starting Xanax dosage for your dog will be determined by your veterinarian based on your dog’s body weight. In general, your dog should not take more than 4 mg of Xanax in a 24-hour period. Xanax comes in tablet form and as a liquid solution. The tablets are more common.

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Your veterinarian may prescribe Xanax to your dog on an as-needed basis to help reduce their fear in certain situations. To help with a predictable, triggering event — like a vet visit, fireworks, or travel — give your dog Xanax at least 30 to 60 minutes before it begins.

Your veterinarian may also prescribe Xanax to your dog on an ongoing basis. When it’s taken daily, the medication is typically given every 6 to 12 hours. Reasons your vet may prescribe daily Xanax for your dog include:

  • Your dog is starting treatment with a long-term medication that hasn’t taken full effect.

  • Your dog is being exposed to a prolonged stressful event, such as a house renovation, nearby construction, or a long period of behavioral training.

  • Your vet thinks Xanax is the best long-term medication for your dog.

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How Xanax is administered

Xanax may be given to dogs with or without food. If your dog develops stomach upset or vomiting after taking Xanax on an empty stomach, give them the medication with a small treat or a meal.

What should you do if your dog misses a dose of Xanax?

If your dog misses a single dose of Xanax, it is usually better to skip the missed dose and wait until their next dose. When taken daily, the medication is typically given every 6 to 12 hours. But if you are uncertain about when to give your dog their next dose, it is best to ask your veterinarian.

Dogs taking Xanax long term may develop a physical dependence. This has been studied much more in people than in dogs. But if your dog is stopping treatment after taking Xanax daily, their dosage should be decreased slowly over several weeks. Don’t stop giving the medication abruptly.

What are the common side effects of Xanax in dogs?

The most common side effect of Xanax in dogs is sedation. This is often a desired effect when it’s prescribed to calm a dog’s anxiety. Other potential side effects include increased appetite, difficulty with balance, and trouble walking, which are temporary.

The side effects of Xanax often depend on how much a dog takes, with more side effects likely to occur at higher dosages.

The class of medication that Xanax belongs to can cause temporary memory loss. Keep this in mind if the medication is being used to help change undesirable behaviors. It could affect your dog’s ability to learn and be trained.

In rare cases, medications used for anxiety and sedation can have the opposite effect. Instead of being calmed, a dog may show signs of:

What are the most serious risks of Xanax for dogs?

Serious side effects may occur if a dog takes too much Xanax. These can include:

  • Difficulty with balance and trouble walking

  • Hyperactivity or agitation

  • Severe lethargy and sedation

  • Vomiting

  • Respiratory depression

  • Low blood pressure

If you believe your dog has taken too much Xanax or may be experiencing serious side effects, contact a veterinarian or a pet poison hotline for help.

Does Xanax interact with other dog medications?

Xanax can potentially interact with several other medications and supplements for dogs, including:

This does not mean Xanax cannot be taken with these medications. But this should be done cautiously and under veterinary direction. Make sure your veterinarian is aware of all the medications and supplements that your dog takes if Xanax is prescribed.

Frequently asked questions

It’s hard to say whether trazodone or alprazolam (Xanax) will be better for your dog. Both medications are used to manage situational anxiety in dogs. And both medications have benefits and potential risks. Ask your veterinarian which might be better for your dog. They’ll be able to provide the best guidance based on your dog’s health history.

Your veterinarian may prefer for your dog to try trazodone instead. Trazodone is not a controlled substance in the U.S. Xanax — a type of benzodiazepine — is a Schedule 4 controlled substance because of its potential for dependence.

The best medication depends on what’s causing your dog’s anxiety, especially because there are many types of medications that can treat canine anxiety. Ask your veterinarian for advice.

If your dog’s severe anxiety is caused by certain situations — such as fireworks or going to the vet — the best medication may be a short-acting one like Xanax. These medications are typically used only before a specific event.

On the other hand, if your dog has ongoing anxiety, a longer-term medication, such as an antidepressant like fluoxetine (Prozac), may be best. These medications are given every day to help manage anxiety.

To help calm your dog naturally, you can try the following:

  • ThunderShirts or anxiety wraps

  • Pheromone diffusers, collars, or bedding sprays

  • Extra exercise

  • Music

There are also some supplements that may help lower your dog’s anxiety. These include:

  • L-theanine

  • Alpha-lactalbumin

  • Melatonin

  • Tryptophan

Keep in mind that supplements aren’t regulated by the FDA. The amount of an active ingredient can vary widely depending on the brand of supplement you buy. It’s also best to look for products specifically for dogs. Human supplements may be made with ingredients that are toxic to dogs.

The bottom line

Xanax (alprazolam) is commonly prescribed to dogs to help with fear, especially specific fears, and anxiety. It is usually given to dogs on a temporary or short-term basis. Negative side effects in dogs are uncommon with most Xanax dosages.

See how your dog responds to taking Xanax before giving it to them in advance of a triggering event. Their dosage may need to be adjusted for the desired degree of sedation or behavioral change.

It’s possible for dogs to experience excitement, restlessness, and aggression as a side effect of Xanax, but this is uncommon. For those who do experience these side effects, this class of medication may not be suitable.

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Why trust our experts?

Chris Vanderhoof, DVM, MPH, has been involved with the veterinary field for over 20 years, since working as an assistant at a local veterinary clinic. After earning an associate’s degree in veterinary technology in 2005, Chris transferred to Virginia Tech where he went on to complete his bachelor’s degree, then his doctorate and master’s.
Renée Fabian is the senior pet health editor at GoodRx. She’s worked for nearly 10 years as a journalist and editor across a wide range of health and well-being topics.
Ghanasyam Bey, DVM
Reviewed by:
Ghanasyam Bey, DVM
Ghanasyam Bey, DVM, is from Cleveland, Ohio, and attended Princeton University for undergraduate studies. After a year of biology research at Duke University, he attended Ohio State College of Veterinary Medicine.

References

GoodRx Health has strict sourcing policies and relies on primary sources such as medical organizations, governmental agencies, academic institutions, and peer-reviewed scientific journals. Learn more about how we ensure our content is accurate, thorough, and unbiased by reading our editorial guidelines.

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