FRIn cats, pancreatitis is easy to miss, and at home a cat must never be left to fast. Here is when to go, what to avoid, and how to help him eat again.
Some signs cannot wait
He vomits and has stopped eating, he has yellow gums or eyes, he is cold or very weak, he breathes fast at rest or with his mouth open, he barely responds: go now. One is enough.
See the full listWhat is happening, and why it is so quiet
The pancreas is a small gland tucked against the start of the intestine; it makes digestive juices and insulin. In cats, inflammation of the pancreas, or pancreatitis, is common, often chronic and quiet, and its cause almost always stays unknown: unlike in dogs, a fatty meal is not an established trigger. No breed is clearly predisposed, and a cat of any age can get it.
The word triaditis
In most cats, the bile duct and the main duct of the pancreas join at the very end and open into the intestine through the same opening. This is thought to be part of the reason the pancreas, the liver and the intestine so often become inflamed together: that is triaditis.
The signs, and when to go
What you see first is a switched-off cat who eats less, or nothing, and does not cry out. He may vomit, but less often than a dog, and many do not vomit at all; diarrhea is possible, but it is not what you see first.
Pain that hides
A cat in pain hides, curls up with a hunched back, moves little, stops grooming, holds his head low and squints. Purring proves nothing.
Go now: any one of these is enough
- He vomits and has stopped eating.
- He is vomiting blood, red or like coffee grounds.
- He strains in the litter box and almost nothing comes out.
- He is deeply flat and barely responds.
- He is cold to the touch, or his gums are pale, or he staggers or collapses.
- He breathes with his mouth open, or fast while lying still, or with his belly pushing on every breath.
- Yellow is showing on his gums, the whites of his eyes or inside his ears.
- He is diabetic, on insulin, and eating less: call us before the injection, or a 24/7 centre if we are closed, without deciding the dose on your own. If he is weak, disoriented, vomiting, breathing fast, or his breath smells oddly sweet, go.
Put him in his carrier, go, and call on the way. Outside our opening hours we do not run an emergency service: go to a veterinary centre open 24/7, then tell us so we can take it from there.
If he is already being treated
A cat being treated for pancreatitis has no margin: call us at the first refused meal, and eating clearly less already counts as not eating. If we are closed, a 24/7 emergency centre answers.
At home: never fast him, never force him, no home medications
Do not fast him: a cat who does not eat is quickly at risk of a second disease, hepatic lipidosis, where the liver fills up with fat. Do not force him either, no syringe and no force-feeding: he can inhale the food and learn to hate it. And nothing from your medicine cabinet, and no "natural" products.
Acetaminophen (Tylenol)
fatal to cats, even a single tablet. There is no safe dose. If your cat swallowed any, it is an immediate emergency.
Ibuprofen (Advil), naproxen (Aleve), aspirin
toxic: digestive ulcers, kidney damage. Never a human anti-inflammatory, for any reason.
Flea products for dogs
several contain permethrin, a violent poison for cats.
Gravol, Benadryl, antacids, leftover prescriptions, another animal's medication
never without direction.
If you have already given something
Medication, or food by syringe? Tell us right away: call us, or a veterinary centre open 24/7 outside our hours. It is not a reproach.
The exam: no single test is enough
Basic bloodwork, run here, measures how serious it is and looks for what often comes with pancreatitis: liver, kidneys, diabetes. A pancreas-specific test (lipase) supports the diagnosis: high, it backs it up; normal, it makes it less likely without ruling it out, especially in a mild or chronic form. Depending on the test, the sample is run here or sent to an outside laboratory: ask which applies and how long to expect.
The full organ by organ ultrasound looks at the pancreas, and also at the liver, the gallbladder and the intestine. It is a separate, planned appointment; it takes place here, with our own team or with a specialized imaging team that travels to us. A normal ultrasound does not rule out pancreatitis.
Treatment: getting him eating again
No medication cures pancreatitis directly: we support the cat. We rehydrate him, treat pain even when it does not show, and nausea even when he is not vomiting, so that he eats again early. A mild form is often treated at home, with the prescribed medications and follow-up. If tube feeding becomes necessary, your veterinarian will discuss it with you and tell you where it is done. After the exam, we present a treatment plan.
Hospitalization, here
Hospitalization here is day hospitalization: your pet is admitted, treated and rechecked on site during our opening hours, and a stay can run over several days, with a recheck each day. We do not provide continuous medical monitoring overnight. When an animal needs to be watched without a break, we stabilize first, then we arrange the transfer to a 24/7 centre, with the full record. In every case, we tell you at admission what the plan is for the night.
Back home, and what comes next
Helping him eat
Offer the food you were told to give, in small portions, more often, somewhere quiet, and take away what he leaves. Do not bring in anything new while he is licking his lips at the bowl. Write down what he actually swallows, and watch his weight, his mood, any vomiting and his litter box.
What comes next
Relapses are possible; the chronic form often comes and goes in flare-ups. Pancreatitis that lingers can lead to diabetes (he drinks and urinates more) or to a shortage of digestive enzymes (he loses weight for no clear reason, even while eating).
Frequently asked questions
He is barely eating. How long can I wait?
What should he eat? Does he need a low-fat food?
Can a cat recover from pancreatitis?
Is pancreatitis fatal in cats?
Should I be thinking about euthanasia?
What is feline triaditis?
Also worth reading
Updated October 16, 2026 · Hôpital Vétérinaire Métro Iberville
This guide is provided for informational and educational purposes only. It does not constitute veterinary medical advice and is not a substitute for a consultation with a qualified veterinarian. Every animal is unique and their health must be evaluated individually. If you have concerns about your pet's health, contact our clinic or consult a veterinarian promptly.
Is your cat eating less?
For a cat being treated for pancreatitis, call at the first refused meal. Outside our hours, a veterinary centre open 24/7.