CBD for Dogs and Cats: What It Does and What Owners Should Know

By Dr Duncan Houston

Quick Answer

CBD (cannabidiol) is a compound derived from hemp that may help support pets with anxiety, pain, inflammation, and certain neurological conditions. While many owners report benefits, scientific evidence is still developing, and CBD should be used under veterinary guidance with high-quality products.

CBD is everywhere right now.

Treats, oils, chews, calming drops… all promising to help your pet feel better.

Some of it is useful. Some of it is marketing.

The reality sits somewhere in the middle.

What to do before giving CBD to your pet

Before starting CBD:

1. Work out what problem you are trying to treat

2. Get a proper diagnosis if needed

3. Choose a high-quality product

4. Speak to your vet first

CBD is not a fix for everything, and using it blindly often leads to disappointment.

What is CBD

CBD (cannabidiol) is a compound found in the hemp plant.

It is:

• non-psychoactive (does not cause a “high”)

• different from THC

• used for potential therapeutic effects

It interacts with the endocannabinoid system, which helps regulate:

• pain

• inflammation

• mood

• neurological function

How CBD works in pets

CBD affects receptors throughout the body.

These receptors influence:

• pain signalling

• inflammation

• stress responses

• neurological activity

The result is often:

• reduced discomfort

• calmer behaviour

• improved overall balance

When CBD may help

CBD is most commonly used in pets for:

Pain and arthritis

In dogs with joint disease:

• may reduce inflammation

• may improve mobility

• may improve comfort levels

It is often used alongside other treatments.

Anxiety and stress

CBD may help with:

• separation anxiety

• noise phobias

• general nervous behaviour

Effects vary between pets.

Seizure support

Some evidence suggests CBD can:

• reduce seizure frequency

• support neurological stability

This is an area of ongoing research.

Inflammation

CBD may have anti-inflammatory effects that support:

• chronic conditions

• skin issues

• general health

What the research says

This is important.

• some studies show positive effects

• evidence is still limited in many areas

• results vary between pets

CBD is promising, but not fully established as a primary treatment.

Choosing a CBD product

Quality matters more than anything.

Look for:

• veterinary-formulated products

• third-party testing

• clear labelling of ingredients

• THC-free or extremely low THC levels

Avoid:

• unverified products

• unclear dosing information

• human products not designed for pets

Safety and side effects

CBD is generally well tolerated.

Possible side effects include:

• mild sedation

• gastrointestinal upset

• changes in appetite

Most effects are dose-related and mild.

Important considerations

Drug interactions

CBD can affect how the liver processes certain medications.

This matters in pets taking:

• long-term medications

• liver-metabolised drugs

Liver values

Some pets may show changes in liver enzymes.

Monitoring is recommended if used long-term.

Not a replacement for treatment

CBD should not replace:

• proper diagnosis

• essential medications

• veterinary care

It is a support tool, not a cure.

When CBD is not enough

CBD may not be effective for:

• severe pain

• advanced disease

• complex behavioural disorders

In these cases, it should be part of a broader plan.

How to use CBD properly

To get the best results:

• start low and adjust gradually

• use consistently

• monitor response

• reassess regularly

Consistency matters more than occasional use.

FAQ

Is CBD safe for dogs and cats

Generally yes, when using high-quality products under guidance.

Will CBD make my pet high

No, CBD itself is non-psychoactive.

How long does it take to work

Some effects are seen within hours, others take days to weeks.

Can I use human CBD products

Not recommended. Pet-specific products are safer and more consistent.

Final thoughts

CBD has a place in veterinary care, but it’s not a miracle solution.

The best way to think about it is:

• useful support

• variable response

• part of a bigger plan

Used correctly, it can improve quality of life in many pets.

Still unsure what to do next?

CBD can be confusing with so many products and claims.

Is it worth trying?
Is it safe with your pet’s medications?
Is there a better option?

If you’re unsure, getting guidance early helps you avoid wasting time and money on the wrong approach.

The ASK A VET™ app gives you access to veterinary advice when you need it, helping you choose the right option with confidence.