Longevity Shot for Cats: Is There a Vaccine to Extend a Cat's Life?

What the viral cat longevity shot really is, which drugs come closest, and what helps an older cat today.

By La Petite Labs Editorial 8 min read

As Seen On

Woman cuddling an orange-and-white cat and a silver tabby while holding a Hollywood Elixir box
Contents

No shot or vaccine is approved to extend a cat's life, as of November 2026. The viral "cat longevity vaccine" is FeliAIM, an injectable kidney disease drug filed in Japan in April 2026 and not yet approved.12 Loyal's longevity injection, LOY-001, is for large dogs only.3

Here's what the viral stories are really about, which real drugs come closest, and what helps an older cat today.

La Petite Labs publishes this guide and makes Hollywood Elixir, a supplement for dogs and cats. We're not affiliated with Loyal, IAM CAT or any company named here.

Is there a longevity shot for cats?

No. No injection is approved to extend a cat's life, and we found no finished lifespan trial of any shot in cats as of November 2026. Every "cat longevity shot" story we traced turned out to be a drug for one disease or a claim with no trial behind it.

The closest real thing is FeliAIM, an injection for kidney disease that has been filed for approval in Japan.12 It's covered below, along with the other drugs that come up in these searches.

Cat longevity shots at a glance

Approved cat longevity shot or vaccine
None
The viral "cat longevity vaccine"
FeliAIM, an AIM protein injection for kidney disease; filed in Japan, not approved
Loyal's longevity injection
LOY-001, for dogs 7 and older weighing at least 40 lb; not approved
Closest approved cat drug
Felycin-CA1, a weekly tablet for early HCM, not for aging
An approved monthly shot for older cats
Solensia, for arthritis pain
Cost of a cat longevity vaccine
No such product, so no real price
Best steps today
Health checks twice a year after age 10, kidney screening, weight and muscle checks

The real cat drugs behind the longevity shot stories

FeliAIMFelycin-CA1PURR-001OKV-119
Aimed atChronic kidney diseaseHeart-wall thickening in early HCMAge-related muscle lossWeight loss in overweight cats
FormInjectionWeekly tabletWeekly oral drugImplant lasting up to six months
StatusFiled in Japan, April 2026FDA conditional approval, March 2025Investigational, not authorizedTrial of up to 50 cats launched December 2025
Tested for lifespan?NoNoNoNo

Competitor label and pricing facts checked November 11, 2026. Sources are listed in the References section below.

Woman kneeling with two long-haired tabby cats while holding a Hollywood Elixir box beside a food bowl

Is there a vaccine to extend a cat's life?

No. A vaccine trains the immune system to protect against an infection.14 No vaccine has been shown to slow aging or extend a healthy cat's life.

The vaccines your vet gives do matter. The American Association of Feline Practitioners' vaccine panel recommends vaccines against panleukopenia, herpesvirus, calicivirus and rabies for all household cats, including cats kept indoors.14 They guard against specific infections. None is designed to slow aging.

Woman exercising beside a tabby cat, with a Hollywood Elixir box and food bowl on a small table

What is the viral cat longevity vaccine?

It's almost always FeliAIM, an AIM protein injection for chronic kidney disease from Japan. Toru Miyazaki's company, IAM CAT, filed it for approval with Japan's agriculture ministry on April 24, 2026.1 As of November 10, 2026, no approval had been announced.2

It isn't a vaccine. It supplies AIM, a blood protein that helps clear debris from injured kidneys and that cats release poorly.5 The vaccine label goes back at least to a 2020 University of Tokyo feature, which said the treatment might be given as a "preventative vaccine". Blogs later called it an "AIM vaccine".67 Our FeliAIM guide covers the drug in full.

Orange-and-white cat reaching toward a woman holding a Hollywood Elixir box while sitting in a chair

Could the AIM shot help cats live to 30?

That's a hope, not a result. The "30 years" idea comes from Miyazaki's 2021 book, The Day Cats Live to Be 30. It argued that treating kidney disease could nearly double cats' average lifespan of about 15 years.8

The only published treatment study followed 26 cats with advanced kidney disease for a year. About 80% of the 11 treated cats were alive at 360 days, against 20% of the 15 untreated cats.9 That's a striking signal from a small, exploratory study of sick cats. It says nothing yet about healthy cats or lifespan.

Gray-haired man holding a Hollywood Elixir box while two cats rest beside him in an armchair

Did early trials show a 35% improvement in organ function?

We couldn't find any trial that reported that. The "35% improvement in organ function over six months" line appears in a January 2025 web article that names no study, no number of cats and no comparison group.10

The published AIM study in cats measured survival and kidney blood markers over 360 days. It didn't report a 35% figure.9 If you see a number like this, ask for the study behind it.

No shot or vaccine is approved to extend a cat's life.

Is there a cat longevity drug?

Not yet. No drug is approved to extend a cat's life. What exists are drugs aimed at specific problems in older cats, and none was tested for lifespan.

FeliAIM is under review in Japan, and Felycin-CA1 is the only one approved in the US.111 PURR-001 hasn't been authorized anywhere, and OKV-119's maker aims to file with the FDA in 2027 or 2028.1213 Our cat longevity drug guide goes deeper.

Tabby cat looking up at a Hollywood Elixir sachet held above it, with the product box on a small table

Is Loyal's longevity injection available for cats?

No. Loyal's injection, LOY-001, is a long-acting drug a vet gives a few times a year. It's aimed at large and giant dogs aged 7 or older, weighing at least 40 lb.34 Loyal's other two programs, LOY-002 and LOY-003, are daily pills, also for dogs.3

None of them is approved yet. Loyal says its drugs, if approved, will be labeled for the populations studied in its trials, and those are all dogs.4 Our LOY-001 guide covers the injection, and our Loyal for cats guide explains why cats aren't included.

Hand gently petting an orange-and-white cat beside a food bowl and Hollywood Elixir box

Can a vet give my cat a dog longevity drug?

No. None of Loyal's drugs is approved, so no vet can prescribe them. If they win conditional approval, FDA rules wouldn't allow off-label use, so a vet still couldn't legally prescribe them for a cat.16

Don't give a cat any medicine meant for a dog unless your vet tells you to.

Man holding a Hollywood Elixir box beside a black cat, an orange tabby and a food bowl

What is Felycin-CA1?

Felycin-CA1 is a once-weekly sirolimus (rapamycin) tablet. The FDA conditionally approved it in March 2025 to manage heart-wall thickening in cats with subclinical HCM, the most common heart disease in cats.11 It's prescription only, and it shouldn't be used in cats with diabetes or liver disease.11

It's real and available, but it isn't a longevity drug. Because it's conditionally approved, a vet can't prescribe it off-label for aging.16 Our Felycin-CA1 guide and rapamycin for cats guide explain the evidence.

What is PURR-001?

PURR-001 is an investigational once-weekly oral drug for age-related muscle loss in older cats, from The Cat Health Company.12 Its lead author has said it combines low-dose rapamycin with mirtazapine.17

In a 12-week, double-blind, placebo-controlled trial of 35 geriatric cats, the company reported body mass up about 7% on the drug against 1% on placebo, and back-muscle thickness up about 23% against 9%.12 The results haven't been peer reviewed, and PURR-001 isn't authorized anywhere.1712 Our PURR-001 guide has more.

The viral "cat longevity vaccine" is FeliAIM, a kidney disease injection filed in Japan in April 2026. It isn't a vaccine, and it isn't approved.

Woman holding a Hollywood Elixir box toward a brown cat perched on the back of a sofa

How much does a cat longevity vaccine cost?

There's no real price, because there's no such product. FeliAIM, the injection behind most of these stories, has no announced price, and the official price is expected only after approval.18 In 2023, Miyazaki said he hoped to bring its price down to the low tens of thousands of yen, or below ¥10,000 if possible.19

Be wary of any site quoting a price for a "cat longevity vaccine" or taking orders. Nothing approved exists to sell.

Woman leaning toward a fluffy orange cat beside a Hollywood Elixir box and green food bowl

Is there a monthly shot that helps older cats?

Yes, for arthritis pain, not for aging. Solensia (frunevetmab) is an FDA-approved injection that a vet gives once a month to control osteoarthritis pain in cats.15 It eases pain. It isn't designed to slow aging, and it wasn't tested for lifespan.

Our Solensia guide covers how it works and its side effects.

Tabby cat licking its nose beside a food bowl and Hollywood Elixir box

Why is kidney disease the target for cat longevity drugs?

Because it's so common in older cats. Studies put chronic kidney disease in 28% to 81% of cats over 12. In one study, about 15% of healthy-looking senior cats already had it.20

It often shows few signs early, so many cats are diagnosed at an advanced stage.20 That's why the AIM research drew so much attention, and why early screening matters more than any shot today.

What helps a cat live longer today?

No shot can do it, but these steps target problems that commonly shorten older cats' lives:

  • Health checks twice a year after age 10, with weight, blood and urine tests, and yearly checks from age 7.20
  • Kidney screening. Finding kidney disease early lets your vet start treatment sooner, and renal diets can prolong survival.20
  • Core vaccines, which protect against serious infections at any age.14
  • Watching weight and muscle. Gradual weight loss can be an early sign of kidney disease and is easy to put down to age.20 Our cat muscle loss guide shows what to look for.
  • Treating pain, including arthritis pain, which can be controlled.15

Are longevity supplements for cats worth it?

No supplement has been shown to extend a cat's life. Supplements aren't drugs, and none sold for aging has a lifespan trial behind it. Judge each one by what it contains, how much, and whether that fits your cat's needs.

Our senior cat supplements guide and natural alternatives guide compare the options.

Tabby cat sitting at a table with a food bowl and Hollywood Elixir box

How can I spot a fake cat longevity shot?

Be skeptical of anything that:

  • Calls itself a "longevity vaccine" or promises your cat will live to 30
  • Quotes a price or takes orders for an AIM injection outside Japan's approval process
  • Claims to be a cat version of Loyal's dog drugs
  • Cites a number, such as "35% better organ function", without naming the study

Ask for the cat trial, its size and its comparison group. If there isn't one, you have your answer.

Woman cuddling a silver tabby and a cream-colored cat while holding a Hollywood Elixir box

When could a real cat longevity drug arrive?

There's no date. The likeliest route is a drug approved for one disease of older cats that also helps them live longer. Things to watch:

  • Whether Japan approves FeliAIM, and whether its full trial results are published2
  • Whether the HALT study supports full approval of Felycin-CA121
  • Whether PURR-001 is filed with regulators12
  • Whether OKV-119 reaches an FDA filing, which its maker targets for 2027 or 202813

Where daily nutrition fits

We make Hollywood Elixir, a daily nutrition powder for adult and senior dogs and cats. It's built around nicotinamide riboside, an NAD+ precursor, with CoQ10, glutathione and 14 more actives, and every active amount is printed on the label. It's a supplement, not a longevity shot: it isn't designed to do what a drug does, and it hasn't been tested for lifespan. Its case is practical: one daily sachet stirred into food (half for pets under 7 lb, two for dogs over 30 lb) instead of a cupboard of separate supplements. If your cat has a medical condition or takes any medication, check with your vet before adding it or any other supplement. See the full formula and serving guide.

Twice-yearly checkups and early kidney screening can do more for an older cat today than any shot on the horizon.

Educational content only. This material is not a substitute for veterinary advice. Always consult your veterinarian about your cat’s specific needs. These statements have not been evaluated by the Food and Drug Administration. Products mentioned are not intended to diagnose, treat, cure, or prevent any disease.

Glossary

Vaccine: a product that trains the immune system to protect against a specific infection.

AIM: apoptosis inhibitor of macrophage, a blood protein that helps clear dead-cell debris from injured kidneys.

Chronic kidney disease: a slow, lasting loss of kidney function, very common in older cats.

HCM: hypertrophic cardiomyopathy, a thickening of the heart muscle and the most common heart disease in cats.

Conditional approval: FDA permission to sell an animal drug for up to five years while full effectiveness evidence is collected. Off-label use isn't allowed.

Sarcopenia: age-related loss of muscle.

Related Reading

Aging & Senior Cat Guidance
• Cat Age Calculator: Cat Years to Human Years
• Cat Lifespan by Breed
• Lethargy in Cats
• Senior Cat Not Eating
• Cat Drinking A Lot
• Why Is My Senior Cat Withdrawn?

Healthy Aging Support
• NAD+ for Cats
• NMN for Cats
• Vitamins For Older Cats
• Senior Cat Food
• Longevity Drugs for Cats

References

Sources and further detail

  1. Institute for AIM Medicine (24 April 2026), *Notice of the manufacturing and marketing approval application for the AIM cat drug FeliAIM* (in Japanese)
  2. Institute for AIM Medicine, *News* (in Japanese, checked 10 November 2026)
  3. Loyal, *Products in development* (checked November 2026)
  4. Loyal, *For veterinarians* (checked November 2026)
  5. Sugisawa R, Hiramoto E, Matsuoka S et al. *Scientific Reports* (2016). Impact of feline AIM on the susceptibility of cats to renal disease
  6. University of Tokyo (9 Jan 2020), *Aiming to double cats' lifespan*
  7. Cole & Marmalade (23 May 2024), *A way to help more cats everywhere to reach age 30? Yes, please!*
  8. EDAILY (2 Sept 2026), "My cat will live to be 30?" The truth behind the buzz surrounding a new Japanese drug
  9. Tezuka T, Arakawa H, Kudo K et al. *The Veterinary Journal* (2026). A clinical impact of apoptosis inhibitor of macrophage on feline chronic kidney disease
  10. The Vanguard Report (updated 28 Jan 2025), *New medical breakthrough means cats could live till 30 years old*
  11. FDA (14 March 2025), *FDA conditionally approves drug for management of ventricular hypertrophy in cats*
  12. Longevity.Technology (18 Sept 2026), *Cat sarcopenia drug moves toward market*
  13. ABC7 Los Angeles (3 Dec 2025), *Weight loss drugs for cats? Company launches clinical trial of GLP-1 implants in cats*
  14. Cornell Feline Health Center, *Feline vaccines: benefits and risks*
  15. Pharmacy Times (17 Jan 2022), *FDA approves Solensia to control osteoarthritis pain in cats*
  16. FDA, *Conditional approval explained: a resource for veterinarians*
  17. The Underbite (18 Aug 2026), *A feline muscle-loss drug clears its first trial*
  18. Noah Animal Hospital Group, *AIM: a complete guide* (in Japanese, as of July 2026)
  19. Felissimo Nekobu (18 March 2023), *Talk event with Toru Miyazaki, part 2* (in Japanese)
  20. Taylor S, Finch N, Caney S et al. *Journal of Feline Medicine and Surgery* (2026). 2026 iCatCare consensus guidelines on the diagnosis and management of chronic kidney disease in cats
  21. dvm360 (20 Nov 2025), *Changing what's possible in feline heart care: Felycin-CA1 offers hope for cats with hypertrophic cardiomyopathy*

FAQ

Is there a shot to make cats live longer?

No. No injection has been shown or approved to extend a cat's life. The closest is FeliAIM, a kidney disease injection that has been filed for approval in Japan but isn't approved yet.

What is the cat lifespan vaccine from Japan?

It's FeliAIM, an AIM protein drug for chronic kidney disease from Toru Miyazaki's company, IAM CAT. It was filed with Japan's agriculture ministry on April 24, 2026. It's a protein injection, not a vaccine.

Why do people call it a cat longevity vaccine?

A 2020 University of Tokyo feature said the AIM treatment might be given as a "preventative vaccine", and blogs repeated the label. The drug filed in 2026 is a treatment for cats with kidney disease.

Is the AIM injection available in the US?

No. FeliAIM has only been filed in Japan, and we found no US application as of November 2026. A drug sold in the US would need its own FDA approval.

Can cats get Loyal's dog longevity drug?

No. Loyal's three drugs are all for dogs and none is approved yet. Even after conditional approval, FDA rules wouldn't let a vet prescribe them for a cat.

Does rapamycin extend a cat's life?

No study has shown that. In cats, rapamycin is approved only as Felycin-CA1, for heart-wall thickening in early HCM, and the cat trials measured the heart, not lifespan.

Is there a drug for kidney disease in cats now?

Yes, several drugs help manage it, though none reverses it. Guidelines pair a renal diet with drugs such as telmisartan when protein leaks into the urine. Our telmisartan for cats guide explains how it's used.

Is the cat longevity shot a scam?

The story is based on a real drug, FeliAIM, but that drug isn't approved or for sale anywhere. Anyone selling a "cat longevity shot" or vaccine today is selling something else.

Does Solensia make cats live longer?

No. Solensia is a monthly injection approved to control osteoarthritis pain in cats. It wasn't tested for lifespan.

Orange-and-white cat beside a Hollywood Elixir box held in a person's hand

Discover LPL-01: How This Fits Into a Larger Feline Longevity System

Aging in cats unfolds quietly. It’s not driven by a single failure, but by gradual shifts across interconnected systems — cellular energy, oxidative balance, immune tone, and tissue integrity — each influencing the others over time.

This article explores one layer of that system. To understand what actually shapes long-term health, you need to step back and look at how these layers interact.

Start with the underlying science: