Can Dogs Take CBD? What We Know
Dogs, like all mammals, have an endocannabinoid system (ECS) — the same biological system that CBD interacts with in humans. This has led to growing interest in CBD as a potential supplement for dogs dealing with age-related discomfort, situational stress (thunderstorms, fireworks, separation), and mobility challenges.
The research is still in its early stages. A 2018 study at Cornell University found that dogs receiving CBD oil showed a significant decrease in pain and increase in activity for osteoarthritis. A 2019 study at Colorado State University found that 89% of dogs who received CBD in a clinical trial had a reduction in seizure frequency.
The FDA has not approved CBD for use in animals, and no pet CBD product can legally claim to treat, cure, or prevent any disease. That said, veterinarians are increasingly open to discussing CBD as a complementary option, especially for older dogs.
How Pet CBD Differs from Human CBD
Pet CBD products are formulated differently from human products in several important ways.
Concentration: Dogs (especially small breeds) need much lower doses than humans. Pet CBD oils typically come in lower concentrations (150–600mg per bottle vs 1000–3000mg for humans), making it easier to dose precisely.
Ingredients: Pet-specific products avoid ingredients that may be harmful to dogs — xylitol (an artificial sweetener toxic to dogs), certain essential oils, and high levels of THC. Many use carrier oils like MCT coconut oil or salmon oil that dogs can safely digest.
Flavoring: Pet CBD treats often use bacon, peanut butter, or chicken flavoring to make them palatable for dogs. Human gummies use fruit flavors and sugar content that aren't appropriate for pets.
Third-party testing: Look for the same standards you'd want for yourself — independent lab testing that confirms cannabinoid content and screens for contaminants. Some pet CBD brands go further and test specifically for pesticides and mycotoxins at levels relevant to animal safety.
Our Top Picks for Dogs
CBDfx Pet CBD Oil
CBDfx offers pet CBD oil in three strength tiers designed around dog weight: small (under 20 lbs), medium (20–60 lbs), and large (60+ lbs). The broad-spectrum formula is THC-free, and the MCT coconut oil base makes it easy to mix into food or apply directly. COAs are published on their website for every batch.
View at CBDfx →FabCBD Dog Treats
FabCBD's dog treats use CBD isolate (zero THC) at a conservative 5mg per treat, making it easy to dose for dogs of any size. The peanut butter and apple flavor is well-received by most dogs. FabCBD sources their hemp from Colorado and publishes lab results on each product page.
View at FabCBD →CBD American Shaman Pet Products
CBD American Shaman offers a full line of pet products including tinctures, treats, and topicals. Their water-soluble nano CBD format may improve absorption compared to standard oil-based products. With 300+ franchise locations, you may be able to buy locally and get in-person guidance on dosing for your specific pet.
View at CBD American Shaman →Dosing CBD for Dogs by Weight
The general starting guideline used by many pet CBD brands and discussed in veterinary contexts is 1–2mg of CBD per 10 lbs of body weight, given once or twice daily. Here are some starting-point ranges:
Small dogs (under 20 lbs): 2–4mg per dose. Example: a 15 lb dog might start with 3mg twice daily.
Medium dogs (20–60 lbs): 4–12mg per dose. Example: a 40 lb dog might start with 8mg twice daily.
Large dogs (60+ lbs): 12–20mg per dose. Example: an 80 lb dog might start with 16mg twice daily.
Start at the lower end and observe your dog for a week before adjusting. Look for signs that the CBD is working — more mobility, calmer behavior during stressful situations, better appetite. If you don't see changes after two weeks at the starting dose, increase gradually.
What to Watch For
Side effects are generally mild but worth monitoring. The most commonly reported side effects in dogs include drowsiness (especially at higher doses), dry mouth (increased thirst), and occasionally mild GI upset when first starting. These typically resolve within a few days or with a dose adjustment.
Drug interactions: CBD can affect how the liver processes certain medications. If your dog takes any prescription medications — particularly anti-seizure drugs, NSAIDs, or heart medications — consult your vet before adding CBD.
Quality red flags: Avoid any pet CBD product that doesn't publish third-party lab results, makes medical claims (e.g., "cures arthritis"), or doesn't clearly state the CBD content per serving. Also avoid products that contain artificial sweeteners, especially xylitol.
Frequently Asked Questions
Can I give my dog human CBD oil?
It depends on the product. If your human CBD oil is pure CBD in MCT oil with no THC, no added flavors, and no sweeteners, it could theoretically be used — but you'd need to recalculate the dose for your dog's weight. It's safer and easier to use a product specifically formulated for pets, with pet-appropriate concentrations and verified THC-free status.
How long does it take for CBD to work in dogs?
Oil tinctures typically take 30–45 minutes to show effects. Treats may take 45–90 minutes since they need to be digested. For chronic issues like joint discomfort, you may need 2–4 weeks of consistent daily use to see meaningful changes.
Is CBD safe for cats?
Cats also have an endocannabinoid system, and some pet CBD brands offer cat-specific products. However, cats metabolize compounds differently than dogs, and even less research exists for feline CBD use. If you're considering CBD for a cat, use only products formulated for cats and start with a very low dose.
Will CBD make my dog high?
No. CBD is non-intoxicating. As long as you use a THC-free product (broad-spectrum or isolate), your dog will not experience any psychoactive effects. This is one more reason to always verify lab results — you want to confirm the THC level is non-detectable.