Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How Long Does CBD Oil Stay in a Dog’s System? Vet-Reviewed Benefits, Risks & More

Share

giving CBD oil to dog

CBD oil has become a popular natural remedy for many common ailments, and it is now being used to treat some conditions in dogs. CBD oil is known to be safe and effective for humans, and the same appears to be true for dogs. Some pet owners are using CBD oil to help their dogs with anxiety, joint pain, and even seizures.

While more research needs to be done on the safety and efficacy of CBD oil for dogs, initial reports are promising. The current consensus is that a dose usually lasts around 4-10 hours. Read on to learn more about CBD oil and your dog.

divider dog paws oct 2024

Please Note

The FDA has not yet approved the use of CBD or any other hemp-containing products in animals to treat any ailment. If you plan to administer CBD to your pet, you should consult with a veterinarian before doing so.

How Long Does CBD Oil Stay in a Dog’s System?

Research on CBD, in general, is still relatively new and has mostly been done to study its effects on humans. There is a bit of guesswork needed to determine the best dosage you need for your pet as well as the effect you are hoping the CBD will have. It is recommended to consult with a veterinarian to determine a dose that’s safe and effective for your dog. Also, as with any supplement, check with a veterinarian before giving it to your pup if you have concerns about how your dog’s system will react.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the personalized advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

While there is no hard science to prove the time CBD will stay in your dog’s system, the current consensus is that a dose usually lasts between four to twelve hours. The dose amount depends on several factors, including the size of the dog, the potency of the CBD formula, and usage. It is always best to follow the dosing instructions given by the product and brand you are using. This applies to CBD oil given to dogs orally and can be controlled in dosage by the number of drops given. For treats or other edibles containing CBD, dosing is much harder to control and measure the outcome.

Half-Life of CBD

When looking at drug efficacy and prescribing dosage, it is important to consider the concept of a drug’s “half-life.” This is the time it takes for an initial dosage to decrease to half the amount in the body. The half-life is important to understand because after a certain amount of time, the drug might not be available in enough quantities to produce its desired effect. However, dosage recommendations are done with this in mind, and you shouldn’t attempt to modify the dosage in your dog to prolong the effects of CBD (unless directed by a veterinarian).

The science is not exact, but the estimated half-life of CBD in humans is between 1 to 31 hours depending on the route of administration and the dosage consumed 1. So how do you determine the half-life of CBD in dogs?

At this stage, the research done on CBD half-life in dogs is still inconclusive, but we do know that dogs have a much speedier metabolism than humans meaning a shorter half-life is much more likely. A rough estimate, according to published studies, is that the half-life is between four to nine hours.

dog taking cbd oil
Image Credit: Erin Stone, Pixabay

The Right Dose

The amount of CBD oil you should give your dog depends on their age, health status, diagnosis (if any), and any concurrent medication they’re on. A veterinarian can help you determine an appropriate dose for your pet if you intend to use CBD oil as a long-term medicine to manage pain or some other ailments (such as recurring seizures). For a one-time dose (for dogs dealing with a temporary anxiety episode, such as during a thunderstorm or during fireworks), you should follow the recommended dose on the product you purchase for your pet. It’s always best to double check a product’s recommended dosage with a veterinarian.

Factors That Affect How Long CBD Oil Stays in a Dog’s System

Several factors can impact how long CBD stays in your dog’s system.

Age is an important factor to consider when it comes to the metabolism of CBD oil. A puppy or very old dog will not be able to metabolize CBD oil the same way a healthy adult dog would.

Studies have shown that CBD is fat soluble, meaning that it can be absorbed by fat cells and then slowly released back into the bloodstream for prolonged periods of time. This means an overweight dog might have a shorter duration of therapeutic effect of CBD but might also take longer to eliminate it entirely from their body. Interestingly, your dog’s breed size is not a factor when it comes to how long CBD will stay in their system (provided you dose it properly).

Diet can also impact how quickly your dog metabolizes CBD. A high-fat diet may cause CBD to be more readily absorbed than a low-fat diet.

Because CBD is primarily metabolized by the liver, the condition of your dog’s liver may impact how long it stays in their system. A healthy liver will metabolize CBD oil more rapidly than an impaired liver.

Some factors that impact CBD oil metabolism
  • Age
  • Body fat percentage
  • Diet composition (possibly)
  • A dog’s biochemical physiology
  • Liver status
  • Frequency and amount of CBD dosing
  • Concurrent medications

divider dog paws oct 2024

The Benefits of CBD Oil for Dogs

The use of CBD oil for dogs has shown to be effective in providing relief from a variety of ailments including anxiety, osteoarthritis, and inflammation. CBD oil is non-toxic and has minimal side effects, making it a promising (albeit inconclusively studied) treatment option for dogs. CBD oil is also known to interact with the body’s endocannabinoid system, which helps to regulate a variety of functions including mood, appetite, and pain perception.

dog taking CBD hemp oil
Image Credit: iAmMrBenjamin, Shutterstock

The Risks of CBD Oil for Dogs

CBD oil is a natural remedy used for many common ailments in humans. However, its safety in dogs is not well-researched or understood. While there are few documented side effects of CBD oil in dogs, the most common being dry mouth, low blood pressure, and drowsiness, it is important to be cautious when using this product. As with any new medication or supplement, it is always best to speak with a veterinarian before starting your dog on CBD oil.

The most important thing to look for when using CBD oil for your dog is whether it contains THC or not. Many CBD oil brands made for human consumption contain trace amounts of THC which has a psychoactive effect. CBD oil made specifically for pets has been lab-tested to ensure it contains no THC. While THC is okay for humans it can be harmful or even deadly for pets, so check that the brand you are using is pet-friendly and has been clearly marked as lab-tested for THC.

woman giving CBD oil to her dog
Image Credit: Erin_Hinterland, Pixabay

divider dog paws oct 2024

Conclusion

In conclusion, common consensus estimates that CBD oil has a half-life in a dog’s system of roughly 4–10 hours. Talk to a veterinarian about whether CBD oil is right for your dog.

See Also: 


Featured Image Credit: 24K-Production, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

The Crate Setup Most Dog Owners Get Wrong (And How To Fix It!)

Most people assume that if their dog hates the crate, the crate is the problem. So they try a bigger one, a different...

1,500 Beagles Rescued from Wisconsin Lab Farm – Here’s Where They’re Going

You may remember that a few weeks ago, we reported on a tense situation at Ridglan Farms, Wisconsin, a facility infamous for housing...

Dogster’s Weekly Photo Contest Winners: Window Watchers (May 11, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

Can a Relationship Work When One Person Doesn’t Like Dogs? Tips & When to Walk Away

For dog owners, a partner who doesn’t like dogs isn’t a minor quirk to overlook. Dogs aren’t a hobby you can scale back...

More related

4 Goldendoodle Coat Types: Breed Facts & FAQs

When you cross the gorgeous Golden Retriever with the whip-smart Poodle, you get an amazing family dog: the Goldendoodle. Goldendoodles have been among...

10 Best Dog Foods for Great Danes in 2026 – Reviews & Top Picks

Caring for a Great Dane is an incredible experience but you may have problems locating the ideal food for your massive friend. Numerous...

Rhodesian Ridgeback Pitbull Mix: Info, Pictures, Care Guide & More

In recent years, cross-breeding has increased in popularity in the hopes of getting the best of both worlds from two entirely different breeds...

Histiocytosis in Bernese Mountain Dogs: Signs, Causes, & Care (Vet Answer)

Histiocytosis is a rare condition that stems from normal cells, histiocytes, in the body. In Bernese Mountain Dogs, they can develop cancerous tumors...

Keep reading

Can Dogs Eat Hot Pockets? Vet-Verified Facts & Safety Guide

Hot Pockets are convenient snacks that come in a variety of flavors. While humans can enjoy eating all the different kinds of Hot Pocket recipes, none of the recipes are recommended for dogs to eat. It’s unlikely for dogs to...

Can Dogs Eat Hot Pockets

8 Best Dog Foods for Mini Aussies in 2026 – Reviews & Top Picks

A smaller, apartment-friendly version of the Australian Shepherd, Mini Aussies have spiked in popularity over the past few years thanks to their adorable teddy bear faces, intelligence, and energetic personalities. If you’re considering getting one of these fluffy balls of...

mini australian shepherd eating from a bowl

9 Best Dog Foods for Poop Eaters in 2026 – Reviews & Top Picks

So, your dog loves to eat their own feces in the yard or from your cat’s litter box—and you’re concerned. We understand. It’s disgusting for us to watch. But while poop-eating is gross, it’s also a natural phenomenon for some...

bulldog eating food

Honest Paws CBD Pet Products Review 2026: An Expert’s Breakdown

Review Summary If you’ve ever owned a cat or dog, you know how much they love to play. But both dogs and cats can suffer from anxiety, joint pain, or decreased mobility due to arthritis. This is where Honest Paws...

DOG_SAPR_Honest Paws CBD Dog Treats

Can Dogs Eat Wheat Thins? Vet-Approved Nutrition Advice

Wheat Thins is a popular brand of crackers often advertised as healthy snacks. They are baked whole-wheat crisps that are relatively low in calories and often paired with other food items like dips or sliced meat. While Wheat Thins are...

Can Dogs Eat_wheat thins

6 Homemade Dog Cake Recipes: Vet-Approved Nutritious Options

Ready to celebrate your dog? These six delicious dog cake recipes will show the world that you love your dog to the moon and back. The best part is that they’re human-grade, which means you can have a slice as...

Freshly baked carrot cupcakes on a plate

Dog Food Sensitivity: Vet-Reviewed Signs & Treatment

Just like humans, dogs can also develop sensitivities and allergies, especially when it comes to their food. However, identifying and addressing the signs of dog food sensitivity can be a challenge for many pet owners, particularly as some aren’t all...

sad golden retriever dog beside food bowl on the floor with no appetite

Raw vs Cooked Dog Food: Vet-Reviewed Pros, Cons & What to Choose

One of the most common questions that people ask when it comes to their dogs is what kind of food to feed them. There is a great deal of debate regarding raw versus cooked dog food. Some people believe that...

Dogster_Raw VS Cooked Food

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter