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.

What’s the Cost of Cat Insulin in 2025? Price Guide & FAQ

Cat's owner measuring the blood sugar values of his feline using glucometer

Our feline friends can develop diabetes, and like us, they might require insulin. If your cat has been diagnosed with this disease, you’re likely wondering how much you’ll be paying for cat insulin. The good news is that the price of insulin for cats has gone down in recent years, and there are ways you can save money on this medicine. In general, insulin for cats can cost between $30–$150 a month.

We’ve gathered the most recent pricing for cat insulin, plus all the other information you need to know about this medication. Keep reading to find out more!

cat + line divider

The Importance of Insulin

If your cat has developed diabetes, it might not be controllable via diet, making insulin vital. Insulin is a hormone in the body that converts sugar into energy. Diabetes makes it so this hormone is either unable to be used by the body properly or results in the body not making enough insulin to achieve what’s needed. The result is high levels of blood sugar and a host of health issues.

Unfortunately, there’s no cure for diabetes, but it can be treated with synthetic insulin. Using insulin means your cat’s blood sugar levels can be regulated, which will improve the state of your pet’s health.

There are four main types of insulin used in cats:

  • Vetsulin
  • PZI
  • Lantus
  • Humulin
Veterinarian at vet clinic giving injection to cat
Photo Credit: Tom Wang, Shutterstock

How Much Does Insulin Cost?

How much insulin costs will vary, depending upon which brand you use. Whether or not you go with a generic medicine will also affect the cost. Generic medicines work equally as well as name brands; they have the same ingredients and do the same thing, but they simply cost less. How much insulin your cat requires each month will also affect your costs.

Generally, most felines will need $50–$80 of insulin every 30–40 days, but those with a less severe form of diabetes will only need roughly $20–$30 of insulin in that same period. But depending on which brand you go with, you can expect to pay $30–$150 monthly for insulin.

Those prices are mostly for insulin that is injected with syringes, but injection pens have become more popular recently. These pens make injecting insulin easier and cost approximately $150 for the pen, with refills being about $50 for a box of 100.

Additional Costs to Anticipate

Insulin isn’t the only thing you’ll be purchasing to manage your cat’s diabetes, though. You’ll need supplies to routinely test your feline’s blood sugar level; these will cost $25–$50. Then there are vet visits, so your vet can check your kitty over routinely. Depending on your vet and your geographical location, these can cost $50–$100 a visit.

You’ll also likely need to change your cat’s diet, possibly with a prescription diet. Prescription foods can be pricier than regular old cat food, so you’re looking at $40–$80 each month for this.

Other additional costs to consider are the ones associated with complications arising from your feline’s diabetes. For example, cataracts aren’t uncommon in cats with diabetes, and cataract surgery can cost up to $3,500. Uncontrolled diabetes can also lead to kidney disease ($2,000 to $4,000), pancreatitis ($3,000 to $5,000), and liver disease ($2,000 to $5,000). Many of these complications will be less likely to occur by following your vet’s instructions on providing your pet with insulin and making lifestyle changes, though.

vet holding burma cat
Image Credit: Elpisterra, Shutterstock

How to Save on the Cost of Diabetes Care

There are absolutely ways you can save on the costs associated with treating your cat’s diabetes.

A few of these recommendations are:
  • Use generic medicine instead of name brand.
  • Purchase insulin online, as it may be cheaper there than at your veterinarian’s office.
  • Purchase insulin in bulk; doing this may enable you to get a discount.
  • Shop around and check prices before committing to purchasing anything.
  • See if your pharmacy has a benefits plan.
  • Ask your vet for a care plan that requires fewer vet visits.
  • Invest in a good pet insurance plan.

Does Pet Insurance Cover Insulin?

Purchasing an excellent pet insurance plan for your feline can save you a bundle in the long run when it comes to caring for diabetes. Most plans will cover diabetes care in some form, but whether insulin is covered will vary by company and plan. Insulin coverage may only come in the form of an add-on of some kind, while the regular plan covers vet visits and prescription diets. And some plans may put a cap on how much is allowed for diabetes coverage each year.

The biggest issue you’ll run into with pet insurance and diabetes is if your cat has been diagnosed with the disease before an insurance plan is purchased. If that’s the case, diabetes will be considered pre-existing and won’t be covered by insurance.

pet insurance coverage
Image Credit: Rawpixel.com, Shutterstock

3 cat face dividerFAQ About Feline Diabetes

There are several frequently asked questions cat parents have about feline diabetes. Here are a few common ones.

How is this disease diagnosed?

If you’ve seen signs in your feline that you think are associated with diabetes, your vet will do a physical exam, test your cat’s urine, and do bloodwork to make a diagnosis.

cat getting bloodwork done at the laboratory
Image Credit: Maria Sbytova, Shutterstock

Why do cats develop diabetes?

The why isn’t clear, but it’s theorized diabetes develops in felines due to obesity, certain medications, age, and lack of exercise.

Is there a cure for feline diabetes?

Unfortunately, there is not. Feline diabetes can be treated and managed but not cured.

Can feline diabetes be prevented?

There’s no way to prevent feline diabetes that is 100% effective, but helping your pet maintain a healthy weight via diet and exercise can help immensely in lowering the risk of diabetes.

cat paw divider

Conclusion

Feline diabetes is expensive, with insulin alone costing $30–$150 a month. Then, there are associated costs for items such as blood sugar monitoring equipment, vet visits, and treatment of any complications that arise from diabetes. However, you can save money on treatment with the tips mentioned above and by having a good insurance plan for your cat.

Just don’t skimp on the insulin if your kitty needs it, as it’s an important part of treatment and will help your pet have a longer and healthier life!


Featured Image Credit: Yaya Photos, Shutterstock

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

Can Cats Eat Chia Seeds? Vet-Approved Nutrition Facts & FAQ

Chia seeds are most associated with those tasty chia puddings that you see all over social media. Maybe you haven’t thought about giving...

What Is a Jellicle Cat? History & Explanation 

Even the name Jellicle cat can spark that childlike curiosity. What on earth is a Jellicle cat and where can I get one?...

10 Best Non-Clumping Cat Litters in 2025 – Reviews & Top Picks

Before bringing home your new kitten or cat, you know that there is a ton of research to do, from what toys, bedding,...

Feline AIDS: Vet-Reviewed Signs, Causes & FAQ

Feline AIDS is a retrovirus infection that attacks a cat’s immune system by targeting the white blood cells. This causes their immune system...

More related

Can Cats Eat Dandelions? Vet-Approved Nutritional Benefits & FAQ

If you see your cat nibbling on common dandelions (Taraxacum officinale), it can be easy to want to rush them straight to the...

Who Will Take Care of My Cat When I Die? Here’s How It Works

As a pet parent, it’s critical to ensure your cats are properly cared for if something happens to you. There are a few...

150 Cat Names That Start with E for Your Furry Friend

When you welcome a new cat into your life, it can be tricky to find a name that fits them. Cat owners are...

When Do Kittens’ Eyes Change Color? Vet-Verified Facts & FAQ

You may have recently brought home an adorable new kitten with baby-blue eyes, but did you know that those icy-blue eyes might change...

Keep reading

Cat Cuddles: Vet-Verified Facts About Kitty Snuggling

Is there a better feeling than cats cuddling up next to you in bed or on the couch? Since cats have a reputation for being independent and aloof, it can feel like you’ve hit the lottery when they choose to...

a-woman-hugging-her-cat_U

How Much Is Too Much To Spend On A Sick Pet? Vet-Reviewed Facts & FAQ

Taking your pet to the vet for even routine care, such as vaccinations, can be pricey. But what about when your pet is ill and needs long-term or emergency care? Those costs could become astronomical, which begs the question of...

cat in the clinic with veterinarian and owner

How Do Cats Show Sadness? 8 Vet-Verified Ways

Many of us who love cats are drawn to their independent and aloof natures. Compared to their canine counterparts, it can sometimes be a challenge to know what your feline buddy is thinking and feeling. Don’t mistake their chill vibe...

sad looking cat lying on a table

Can Cats Eat Roses? Vet-Reviewed Safety Facts & Information

Have you ever walked into your rose garden and caught your cat nibbling on rose petals? Or perhaps you’ve found them snacking on your beautiful bouquet in your kitchen, and you’re worried about whether or not roses are safe for...

Can Cats Eat Roses

Why Do Cats Rub Their Face on Corners? 5 Vet-Verified Reasons

Cats often engage in behaviors that leave us feeling puzzled or confused. Even though we might find them to be strange, many of these behaviors are normal for cats. New cat owners may be surprised by just how much their...

Tricolor ginger white and back cat rubbing his cheek against the garden corner table

Why Do Cats Gag? 10 Vet-Verified Reasons & When to Worry

Our cats are always nosing about, getting into all sorts of things. They see something peculiar, and what better thing to do than give it a good sniff? If your cat gags a lot, you might wonder what gives. Some...

cat gagging

Can Cats Eat Caviar? Vet-Verified Benefits & Precautions

Have you ever wanted to give your cat an expensive treat, like caviar (raw fish eggs)? Before you open up the caviar jar, you want to make sure that it is safe. Cats can eat caviar, but it is not...

Can Cats Eat Caviar

Can Cats Eat Jelly (Jam)? Vet-Reviewed Facts to Consider

Spreading jelly on your morning toast or putting it in a sandwich is an easy, delicious way to make a quick meal taste good without too much work. Food, no matter what it is, is always bound to capture a...

Can Cats Eat Jelly (Jam)