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Dr. Kara
Dr. Kara, Board Certified Veterinarian
Category: Vet
Satisfied Customers: 17933
Experience:  Over 20 years of experience as a veterinarian.
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my cat eats too fast & is immediatly sick. this is happening

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my cat eats too fast & is immediatly sick. this is happening far to often lately.
Hello, my name isXXXXX and I have over 20 years of experience as a veterinarian. I am very sorry to hear about Susu's chronic vomiting.

Vomiting can be related to chronic pancreatitis, esophageal reflux, a dietary allergy or sensitivity, inflammatory bowel disease, heartworm disease, internal organ failure, hyperthyroidism, a full or partial gastrointestinal obstruction or even infiltrative cancers such as lymphoma.

In an older cat parasites are rarely a cause of vomiting. So that may be one test that you can skip.

This may be a life long problem but at her age I would be very concerned that there is something else underlying all of this other then a dietary sensitivity.

Because she's a bit older I would recommend checking some bloodwork to start, a complete blood count, biochemistry profile and T-4. If money is tight ask your veterinarian about a mini geriatric blood profile which is less expensive but should cover all the bases.

Depending upon exam finding abdominal radiographs may be needed too but that is something that doesn't have to be done. You can choose to check things one at a time or not at all if it doesn't fit in your budget.

If those tests look normal then a heartworm test, as vomiting is strangely one of the most common signs of heartworm disease in cats, should be done as well as a specific blood test for pancreatitis, a fel spec PL (feline specific pancreatic lipase). This test is highly specific for pancreatitis in cats. But again further testing is up to you.

The next step diagnostically would be an abdominal ultrasound and/or either exploratory surgery or endoscopy to gather biopsies of her gastrointestinal tract to look for inflammatory bowel disease or cancer.

In the meantime you can try giving her an acid reducer and a bland diet to see if that helps.
You can try either:
1) Pepcid ac (famotodine) at 1/4 of a 10mg tablet per 5 to 10 pound cat every 12 to 24 hours
2) Prilosec (omeprazole) at 1/4 of a 10mg tablet per 5 to 10 pound cat every 24 hours

Dietary changes may help as well.
At home you can try a bland diet of 2/3 boiled minced white skinless chicken and 1/3 boiled white rice mixed with some low salt chicken broth to make it easy to lap up and swallow.
If this helps her there are some long term diet changes you can make that should help.

You could try feeding an over the counter canned only sensitive stomach diet such as the ones made by Hills, Royal Canin and Purina Pro Plan. If those don't seem to do the trick prescription sensitive stomach foods such as Hills i/d or Purina Veterinary Diets EN can be tried. If you've tried these sensitive stomach diets then perhaps a hypoallergenic diet such as Hills z/d or Royal Canin Duck and Green Pea will work.
I recommend canned foods as many cats with chronic vomiting that eat dry food may be vomiting in part due the the dry food expanding once exposed to the gastric acid juices in the cat's stomach, leading to feeling over full and vomiting. For this reason I also recommend several small meals a day, and even adding a little water to canned food.

Best of luck with Susu, please let me know if you have any further questions.
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