Get

In Your Inbox

Catster 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 Much Catnip Can I Give My Cat? Vet-Reviewed Facts & FAQ

Share

Gray Cat Enjoying Fresh Catnip_Anna Hoychuk_shutterstock

While most pet owners have given their feline pal catnip before, it’s hard to know how much you should give your cat or even what a safe amount is. Cats cannot overdose on catnip. However,  even if there is no specific amount of catnip to give to your cat, you should only feed it to your cat in moderate amounts.

As with anything else you give your cat, catnip can have side effects. It can lead to upset stomach, diarrhea, and vomiting if ingested in large amounts. It is thought that feeding your cat catnip in moderation won’t harm them, but you want to avoid feeding it to them excessively.

divider 2 catsWhat Is the Correct Amount of Catnip to Give to Your Cat?

There is no specific amount of catnip that you should give a cat. Every cat is different. That said, if a cat is given catnip in large quantities, it can cause side effects. You can consult your vet if you’re unsure how much catnip to give your cat. They should be able to tell you how much to use based on your cat’s weight, size, and health issues.

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

Preventative wellness PGV mention keep cat healthy Preventative wellness PGV mention keep cat healthy mobile

Can a Cat Overdose on Catnip?

While cats can’t overdose on catnip, too much of it can cause difficulty walking, vomiting, diarrhea, and dizziness. In general, fresh catnip is much more potent than dry catnip, so you won’t need to give your cat as much as you usually do. It’s also recommended to avoid catnip oils that are highly concentrated because of their high potency.

cat playing with catnip toy
Image Credit: Ellie Burnett, Shutterstock

What Types of Catnip Are There?

You can get catnip in a few different forms. Some, of course, are better than others.

Ideas on how to give catnip to your cat include:

If you don’t want to deprive your cat of catnip, but they get an upset stomach every time you give them some, the catnip spray might be a good choice. You can spray it onto the cat’s toys, scratching post, or tower, so the cat isn’t ingesting it but still enjoys the effects.

Cat scratching post sisal rope
Image Credit: Svetlana Rey, Shutterstock

Does Catnip Work for All Felines?

Studies have suggested that about 60% of cats have a behavioral reaction to catnip, so it doesn’t work for all felines. If you give the catnip to your cat and it doesn’t seem to work for them, don’t worry; they just aren’t susceptible to its effects like some other cats are.

The effects you can expect from most cats when given catnip include:
  • Mild sedation
  • Napping
  • Jumping
  • Playing with toys
  • Running through the house

This shows that catnip affects cats in different ways. Some cats will become relaxed and affectionate, piling up on you to take a nap. Other cats will become hyper, running through the house and wanting to play with all the toys in sight. Rarely, some cats might display aggressive behavior. It’s thought that how a cat reacts to catnip is passed down through genetics, but that hasn’t been proven.

Lots of cats go bananas for catnip. If your cat is one of them, we recommend Hepper's durable, engaging Catnip Stick Toy! These sturdy toys come in several fun colors and feature bite-proof double bagging and 100% organic catnip fill. They're also handmade in the USA and designed to look like your cat's natural prey.

Hepper Stick Catnip Cat Kicker Toy
  • No Filler - Like all the best cat toys our is stuffed with 100% organic catnip. Cheap cat toys with...
  • Flexible Play - Simple plush shape is great for biting, scratching and pawing. It can start life as...
  • Durably Designed - Our cat safe toys are hand-stitched with a double-lined exterior construction for...

At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

How Long Does Catnip Stay in a Feline’s System?

Depending on the cat, the effects of the catnip usually last for about 10 to 15 minutes. The catnip will lose its potency over time, so keep it in an airtight container when not in use.

cat eating catnip
Image Credit: Piqsels

Is Catnip Safe for Cats?

In moderation, catnip is safe for cats and may even help their digestive system. However, this doesn’t mean you should give your cat large quantities of the substance, as it could lead to digestive upset.

divider 2 catsWrap-Up

If you are considering giving your cat a bit of catnip, there’s no specific amount you should give them. Instead, use your judgment, but make sure not to give the cat massive amounts of the plant all at once. While cats can’t overdose on catnip, large amounts can cause them digestive issues.

Remember, not every cat reacts to catnip, and not every cat reacts similarly. Your cat may be different, and you’ll have to wait and see. Like everything else you give your cat, it’s best to provide them with catnip in moderation for the best results.


Featured Image Credit: Anna Hoychuk, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* 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 Catster 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

Ask Dr. Paola – Help! My Cat Suddenly Has Dandruff! (March 30, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Your Cat Keeps Vomiting After Eating: Here’s What’s Going On

Cats vomit. It’s one of the less glamorous facts of life with a feline, and most cat owners have cleaned up more than...

Ask Dr. Paola – Help! My Cat Gets Diarrhea from Wet Food! (March 23, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Cat Shampoo Alternatives That Are Already in Your House

If your cat has ever gotten into something disgusting and you’ve found yourself without cat shampoo, we’re here to help. Before you panic...

More related

How to Tell if Your Cats Are Getting Along: Vet-Verified Body Language & Socialization Tips

There can be some seriously mixed feelings when two animals get together for the first time. Cats have a very heart-on-their-sleeve way of...

8 Best Designer Cat Collar Brands in 2026 – Reviews & Top Picks

Dogs are easy, undemanding creatures. If you need a collar for a dog, you can just go buy a $7 one at your...

We Interview One of the Creators of “The Purring Quest,” a Video Game Starring Cats

A ginger cat with Manx Syndrome called Sheldon was chosen to appear in a cat-centric video game named The Purring Quest. Intrigued with...

Your Cat Doesn’t Like Catnip? 6 Vet-Approved Alternatives

Not all cats are reactive to catnip. And sometimes, you might not like your cat quite as much when they are on the...

Keep reading

Why Does My Cat Clean Herself on Me? 4 Vet-Verified Reasons & When to Worry

Cats have quite a few strange behaviors. Even if you have been living with cats forever, you may still be surprised by their behavior every once in a while. For instance, some cats may clean themselves while lying in their...

cat sleeping on owner's lap

Can Cats Eat Macadamia Nuts? Vet-Approved Facts & FAQ

There’s no denying that macadamia nuts are a delicious treat for us humans, and you might even find your cat is interested in them. While these are a good, albeit high-calorie, snack for people, macadamia nuts should not be fed...

Can Cats Eat Macadamia Nuts

Can Cats Eat Yogurt? Vet-Reviewed Nutrition Facts & FAQ

For many, thinking of cats brings up images of them lapping up a saucer of milk. While it’s safe for kittens to have their mother’s milk, older cats are lactose-intolerant, so giving them milk or yogurt could result in a...

Can Cats Eat Yogurt

How Old Do Cats Have to Be to Get Pregnant? Vet-Reviewed Science & Facts

A cat’s fertility and reproduction remain unrivalled as kittens grow into sexual maturity sooner than you might expect – as young as 4 to 6 months – meaning your cat can get pregnant as early as four months! For this...

Pregnant cat laying on a staircase

5 Homemade Cat Food Recipes (Vet Approved)

If you’re worried about what goes into your cat’s food, making it yourself can seem like the perfect solution. However, creating a nutritionally complete and balanced diet for cats is far more complex than it appears. Cats have very specific...

Homemade Cat Food Recipes

How Long Should a Cat Be Confined After Being Spayed or Neutered? Vet-Approved Recommendations

Spaying and neutering your cat is highly recommended, not only for the prevention of health and behavioral problems, but also to help combat the severe overpopulation of cats. Overpopulation leads to homelessness and the risk of euthanasia. Spays and neuters...

vet putting on surgical suit to a cat after surgery

Can Cats Die from Tooth Resorption? Vet Reviewed Facts & FAQ

Naturally, one of the first questions that come to mind when our pets are diagnosed with a health condition is “can my pet die from (insert condition)?” In the case of tooth resorption1, a common dental disease in cats, the...

cat teeth resorption

How to Keep Cat Claws Dull Safely: Vet-Approved Tips

What’s that old saying—when you love someone, you have to love everything about them. Well, that’s definitely put to the test when you see your cat scratching. When you own a cat, you have to accept that scratching is normal...

cat claws when kneading

Love Cats? So Do We! Join the Catster 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 Catster Email Newsletter

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.