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

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

How to Take Your Dog Canoeing & Kayaking: 10 Vet-Approved Tips for Safety

Taking your dog kayaking or canoeing can be great fun, but there are several things to consider before you go out onto the...

8 Dogo Argentino Facts: Learn About This Interesting Breed (Vet-Verified)

A newcomer to American dog owners, the Dogo Argentino is a pack-hunting dog bred to hunt big game like puma and wild boar....

Diamond Naturals Dog Food Review 2026: Pros, Cons, Recalls & FAQ

Review Summary Diamond Naturals is one of the many pet food lines produced by Diamond Pet Company, a second-generation, family-owned manufacturer. Made entirely...

13 Essential Rottweiler Supplies: 2026 Vet-Reviewed Guide

When you pick up a new Rottweiler puppy, you may be surprised by the number of items you need. Puppies need a lot...

More related

My Dog Needs Surgery and I Can’t Afford It: 7 Vet-Approved Steps to Take

Taking care of dogs is extremely rewarding, but it can also be expensive. There are times when our dogs get into unforeseen accidents...

Why Do Rottweilers Have a Bad Reputation? Vet-Reviewed History & Behavior

Rottweilers are a very divisive breed of dog. Despite the Rottweiler’s immense popularity, the breed has a bad reputation. Some think Rottweilers are...

150+ Japanese Dog Names With Meanings: Traditional & Unique Ideas

Whether you’re bringing home a Japanese dog breed or have a cultural interest in Japan, choosing a Japanese name for your dog can...

Large Munsterlander Dog Breed: Info, Pictures, Facts & Traits

The Large Munsterlander is a gentle-natured dog with origins in Münster, Germany. Originally bred as a gundog, they’ve long been distinguished by their...

Keep reading

What Seasonings Can Dogs Have Safely? 6 Vet-Approved Options

We all know that seasonings can be extremely dangerous to dogs if they get a hold of the wrong ones. Knowing what’s in your spice cabinet can really help you protect your canine companions from harm. Keep in mind that...

chocolate labrador dog eating food from bowl

Can Dogs Eat Capers? Vet-Reviewed Nutrition Facts & FAQ

You love your dog, so you want to give them treats every now and again, and sometimes those treats are your own food. A lot of the time, depending on the food, this is (mostly) fine for your pet. But...

Can Dogs Eat Capers

Can Dogs Have Pumpkin Spice? Vet-Verified Health & Nutrition Guide

Fall brings with it the advent of pumpkin spice everything—pumpkin spice lattes, pumpkin spice cookies and bread, pumpkin spice scented candles, and more! There’s really no better way to get into the fall season than with some pumpkin spice. But...

pumpkin spice

Can Dogs Eat Goldfish Crackers? Vet-Verified Facts & Tips

Goldfish crackers have been many people’s favorite salty snacks for decades, with their unique and reliable taste. They come in many different flavors, colors, and seasonings, though they always have their recognizable salty coating. But how healthy is this snack...

Can Dogs Eat_Goldfish Crackers

Can Dogs Eat Cucumbers? Vet-Approved Feeding Facts & FAQ

While we like to think our pets can eat all the same foods we can, dogs are completely different animals with unique dietary needs. While they are omnivores, they still enjoy a hefty serving of meat, so you might not...

cucumber

Why Do Dogs Eat Cat Poop? 5 Common Vet-Reviewed Reasons

It isn’t odd for dogs to eat cat poop, though the behavior may be quite disgusting in our minds. There are many reasons for this behavior. Most of them are harmless — it’s just something that dogs do. However, there...

Austrian black and tan hound dog eating the grass

Best Canned Pumpkin for Dogs: Our Top 6 Picks in 2026

Pumpkin isn’t just an autumn treat anymore—especially when it comes to your dog. Canned pumpkin is a popular treat and dog food topper, and many dogs can’t get enough of it! It’s also a healthy superfood that has many benefits...

Dog beside Pumpkin

Can Dogs Eat Gyro Meat? Vet-Verified Nutrition Facts & Risks

Gyro meat is typically made from ground meats, including lamb, beef, and pork, with a variety of seasonings. While these meats in unprocessed form should technically be fine as long as your dog doesn’t have food allergies, once processed into...

Can Dogs Eat Gyro Meat