Marijuana vs CBD in Dogs and Cats: What’s the Difference?

Marijuana vs CBD in Dogs and Cats: What’s the Difference? 🐶🐱🌿

By Dr Duncan Houston

🔎 Quick Answer

Marijuana contains THC, which is toxic to dogs and cats. CBD does not cause a “high” and may have some therapeutic uses, but it must be used carefully due to poor regulation and dosing variability.

This is one of the most misunderstood topics I see.

People often group marijuana and CBD together like they’re the same thing. They’re not. For pets, the difference is huge.

🌿 What Is Marijuana?

Marijuana refers to cannabis products that contain THC (tetrahydrocannabinol).

👉 THC = the compound that causes a “high”

In pets:

• THC is toxic

• It affects the brain and nervous system

• It causes disorientation, sedation, and distress

🚨 In dogs and cats, marijuana can cause:

• wobbling or inability to walk

• extreme sedation or agitation

• vomiting

• drooling

• low heart rate

• tremors or seizures

• coma in severe cases

👉 There is no safe dose of marijuana for pets

🌿 What Is CBD?

CBD (cannabidiol) is another compound from the cannabis plant.

👉 CBD ≠ THC
👉 CBD is non-psychoactive

That means:

• no “high”

• different effects on the body

🧠 How CBD Affects Pets

CBD interacts with the endocannabinoid system, which helps regulate:

• pain

• inflammation

• mood

• appetite

Potential uses (with vet guidance):

• 🦴 chronic pain (arthritis)

• ⚡ seizures

• 😰 anxiety (in some cases)

👉 CBD is not a miracle cure, but it can help in certain situations

⚠️ The Big Problem With CBD Products

Here’s where it gets tricky.

Most CBD products:

• are not well regulated

• may contain incorrect doses

• may contain THC despite the label

• may contain contaminants

So while CBD itself is not toxic like THC:
👉 poor-quality products can still be dangerous

🐾 Key Differences for Dogs and Cats

🐱 Cats vs Dogs

Both species are sensitive, but:

Cats:

• often more sensitive to toxins

• may show more unpredictable responses

• less research available for CBD

Dogs:

• more studied with CBD

• still very sensitive to THC

👉 Neither species should ever be given marijuana

🚨 What Actually Happens in Real Life

Scenario 1:

Dog eats a cannabis edible
👉 THC toxicity + possibly chocolate or xylitol
👉 Emergency

Scenario 2:

Cat exposed to marijuana smoke
👉 Neurological signs, distress
👉 Veterinary visit needed

Scenario 3:

Owner gives CBD oil from unknown source
👉 May contain THC
👉 Unpredictable response

🩺 Vet Takeaway

• Marijuana = toxic, never appropriate

• CBD = potentially useful, but only with caution

If you’re considering CBD:

• speak to your vet

• choose high-quality products

• start with controlled dosing

• monitor closely

💬 Final Thoughts

This isn’t about cannabis being “good” or “bad.”

It’s about understanding the difference.

👉 THC is dangerous for pets
👉 CBD may have a place, but only when used properly

Mixing the two up is where problems happen.

❓ FAQ

Can CBD make my pet high?

No, pure CBD should not cause a high. If it does, the product likely contains THC.

Is marijuana ever safe for pets?

No. There is no safe use of THC in dogs or cats.

Can CBD replace vet treatment?

No. It may support treatment, but should not replace proven therapies.

How do I know if a CBD product is safe?

You often don’t without proper sourcing and veterinary guidance, which is why caution is essential.

If you’re unsure whether a product is safe or appropriate for your pet, the ASK A VET™ app can help you make a clear, evidence-based decision before you try anything new.