[FH] Fwd: Re: Tazo - blood clot - VERY IMPORTANT
Aspirin is a medication that most people have in their bathroom
cabinets as a matter of routine. We see Aspirin advertised daily on
the television. We self-medicate with Aspirin without thinking twice
It is understandable that cat owners often assume it is safe to give
their kitties aspirin. While Aspirin can be a useful medication for a
cat, over-dosing is not only harmful, it can be lethal!
Aspirin, acetylsalicylic acid (ASA) or Acetaminophen ...
They are the same basic medication.
One extra strength Acetaminophen tablet can kill a small cat
Aspirin Is A Useful Medication For Cats
Aspirin is used in cats in the treatment of cardiomyopathy,
arthritis, pain, and fever. The dose is based on the cat's weight and
the condition being treated, and is determined by the veterinarian.
Some conditions, such as hypoalbuminemia, will require a reduction in
In fact aspirin is a very effective pain reliever for cats, if
nothing else can be obtained, or is available. ASA, the chemical name
for aspirin, is sometimes administered to animals to relieve minor
pain and discomfort.For arthritis, we do sometimes use aspirin but it
must be used cautiously and it is important to know the patient's
medical condition well prior to its use. As in humans with heart
risks, a cat with HCM may be prescribed Aspirin. 1/4 of a baby aspirin
will help with pain and swelling for about 92/96 hours in a cat.
Cats with HCM are often advised to get baby aspirin twice weekly
or once every 5 days to prevent the forming of blood clots, which can
Acetaminophen is toxic to cats, aspirin is extraordinarily easy to
overdose in cats because the half-life of aspirin in a cat is 72 hours
(3 days!) If you know what you're doing, you can give aspirin to your
cat. But cats have different metabolisms to humans, and break aspirin
down only very slowly. Basically they lack an enzyme that breaks down
the salicylic acid in the liver, so the drug stays active in their
systems for much longer than people or dogs.
So while you can give aspirin to a human at doses of 10mg/kg of
body weight every 6 hours, with a cat, you can give the same dose (10
mg/kg) - but every 48 hours, not 6 hours. That's the timing for
anti-platelet activity. Aspirin interferes with platelets, which are
responsible for helping the blood to clot. Disruption of platelet
function increases the amount of time it takes the blood to clot after
Aspirin in high doses in a cat can lead to hepatitis, gastric
irritation, and respiratory problems.
Aspirin toxicity most often is a result of a cat accidentally
eating an aspirin... or if it is given a human dose .
Toxicity can also occur with repeated aspirin administration. .
NEVER give cats acetaminophen (Tylenol), as it will kill them very quickly
Correct Dosing of Aspirin
Aspirin can be used in very specific doses for cats.
The USUAL ASPIRIN DOSE FOR CATS
A dose of 10mg/kg
Every 48-72 hrs
NOTE: There are published studies indicating that aspirin is safe
when dosed from 10 to 25mg/kg every 48 to 72 hours and one study
indicating no problems when it was dosed at 162mg/cat once a week.
Only use these higher dosing recommendations if your cat is under
Never give your cat aspirin more often then every second day
ASA toxicity is the poisoning of the animal due to overdose or to
long-term use. Aspirin toxicity (salicylate toxicity) is poisoning
that occurs following the ingestion of aspirin or aspirin-containing
products. Aspirin toxicity usually occurs because of the ingestion of
improperly stored drugs or the administration of the incorrect dose of
Cats are more susceptible to the effects of aspirin than are dogs
because they are unable to metabolize the drug as quickly. Young
animals are more susceptible to the toxic effects than are adult animals.
Giving cats aspirin can be very dangerous if it is not given
correctly and under veterinary supervision. This is especially true
for older cats.
Symptoms of Aspirin Poisoning
Common symptoms of aspirin toxicity in the cat may include:
* high body temperature
* muscle weakness
* unsteady when standing or walking
* decreased respiration
* loss of appetite
* abdominal pain
* vomiting with or without blood
* loss of appetite
* extreme thirst
* dilute urine
* black stools
* spontaneous bleeding may also occur causing pinpoint bruises to
appear in the skin and on the gums (petechiae)
* (rarely) seizures
The symptoms of acute kidney failure are almost identical to
the gastrointestinal symptoms of aspirin toxicity
Diagnosis of Aspirin Poisoning
Aspirin toxicity is diagnosed by a thorough history and physical
examination and by laboratory tests. Any history of pain (or other)
medication ingestion, especially within 5 days of the development of
signs, is important information for the veterinarian. Complete blood
counts (CBCs) will reveal blood abnormalities such as anemia (low red
blood cell count), and blood chemistries will often show changes
reflecting fluid and electrolyte imbalance. Other lab tests may be
done. For example, salicylic acid, a component of aspirin, may be
found in the blood. The easiest way of diagnosis aspirin poisoning is
if your cat has a history of being given aspirin or if the cat
accidentally ate some aspirin.
Tests to confirm aspirin poisoning may include:
* A complete blood count (CBC) is used to assess the cat's white
blood cell count and red blood cell count. If the cat has intestinal
bleeding secondary to ulceration of the stomach, the red blood cell
count may be decreased. A biochemistry profile is a blood test used to
assess internal organs such as the kidneys. Elevations in the kidney
values indicate that the kidneys have been damaged. This blood test
also indicates evaluation of the liver values, which is important
because diseases of the liver could produce symptoms similar to those
of aspirin toxicity.
* A urinalysis is performed to assess the kidney's ability to
concentrate urine. In cases of kidney damage, the urine becomes more
dilute and appears lighter in color.
* A blood gas is done to assess the pH of the blood. Animals that
have aspirin toxicity often have a low blood pH (acidosis).
* An activated clotting time (ACT) is a blood test done to measure
a cat's ability to form a clot and to stop bleeding when cut. Because
aspirin may interfere with the ability to form a lot, clotting tests
such as the ACT may be prolonged.
If you suspect your cat may have eaten aspirin, contact your
veterinarian immediately. A specific antidote to counteract the
effects of aspirin is not available. Cats are treated using the
general principles of supportive care for poisoning. The initial goal
is to maintain kidney function and fluid-electrolyte balance.
Hospitalization is often required for two to five days. treatment may
* Induction of vomiting
* gastric lavage (pumping the stomach) to remove undigested pills
if the cat is examined within four hours of ingestion.
* Administration of activated charcoal to prevent absorption of
aspirin from the stomach.
* Placement of an intravenous (IV) catheter to administer IV
fluids to re-hydrate and to treat or prevent kidney failure.
* Administration of antacids such as misoprostol (Cytotec®),
cimetidine (Tagamet®), famotidine (Pepcid AC®), or sucralfate
(Carafate®) to prevent or treat ulceration of the stomach.
* Administration of antiemetic (anti-vomiting) drugs such as
metoclopramide (Reglan®), prochlorperazine (Compazine®) or
Without treatment, A cat with aspirin poisoning
may go into a coma and death may occur
If accidental ingestion has occurred, remove any remaining pills
from the environment. Take your cat to a veterinarian as soon as
possible for treatment. If you live more than 30 minutes from the
veterinary hospital, call ahead for advice on whether or not to induce
vomiting at home prior to transportation.
If you have been administering aspirin and you note lethargy,
depression, vomiting, black colored stools, pale gums, or loss of
stop giving the aspirin and contact your veterinarian immediately.
The outcome depends on the amount of aspirin ingested and the
rapidity of treatment. If the toxicity has progressed to toxic
hepatitis (inflammation of the liver), severe blood abnormalities, or
coma, the prognosis is usually poor.
Factors Limiting The Use of Aspirin In Cats
Aspirin can be used in cats, but they must be healthy and a
veterinarian needs to determine if there are any other medical
problems in a cat patient before aspirin is administered. This
determination is made based on the findings of a physical examination
and blood tests. Of particular concern is the functional status of the
liver, kidneys and thyroid gland. Aspirin should be used cautiously in
cats with functional deficiencies of these organs. Since aspirin can
irritate the stomach and affect platelet function, cats with bleeding
gastrointestinal ulcers and bleeding disorders should not be given it.
Some cats may be allergic to aspirin; its use is precluded in these
cats as well.
Veterinarians will need to see cat patients on aspirin
frequently to monitor for toxicity
Preventing Aspirin Poisoning
* Never give your cat aspirin unless instructed to do so by a
* Keep bottles of aspirin out of your pet's reach
* Small packets of aspirin kept in pockets or purses are a danger
to your cat.
* If you spill the aspirin bottle, exercise special care in
collecting all the pills.
Giving Aspirin Under Veterinary Care
If your cat's regular care involves administration of aspirin,
give enteric-coated aspirin. Administer aspirin with food to limit
stomach upset and never exceed the dose prescribed by your veterinarian.
Regarding Aspirin & Your Cat...
More is not necessarily better!
Conditions That Mimic Aspirin Toxicity
* Other diseases can have symptoms that appear similar to aspirin
toxicity. These include:
* Non-steroidal anti-inflammatory medications such as Rimadyl®,
Etogesic®, phenylbutazone, flurbiprofen, and ibuprofen may cause
identical symptoms as those caused by aspirin toxicity.
* Administration of steroids can cause vomiting and stomach
ulceration as well as increased thirst, urinations and urine dilution.
These symptoms can mimic those of acute kidney failure.
* Gastroenteritis (inflammation of the stomach and intestines) of
any cause can mimic the gastrointestinal symptoms of aspirin toxicity.
History of aspirin administration or intoxication is the best way to
distinguish aspirin toxicity from other causes of gastroenteritis.
* Pancreatitis (inflammation of the pancreas) can cause all of the
symptoms associated with aspirin toxicity. Pancreatitis can be
difficult to diagnose in the cat. Ethylene glycol (antifreeze)
poisoning can cause symptoms similar to those of aspirin toxicity. A
specific test can be performed to diagnose ethylene glycol poisoning
if this is suspected.
In email@example.com, Leah Ferron <leahandhercats@...> wrote:
>aspirin! 1 baby aspirin a day for a kitty is a LOT! My 6 foot, 275 lb.
> I am sorry I forgot your name,
> Please, please, please be careful with this dosage of baby
husband takes one baby aspirin a day. An 8-9 lb. kitty should not be
getting that much aspirin. Seymour could easily be poisoned with this
much aspirin! They can not process the aspirin that fast.
> Leah and her cats and Angel Alec
> binquist <binquist@...> wrote:
> Re: baby aspirin
> Hi, Diane. Earlier this week, an internal medicine vet specialist
> recommended that i give Seymour 1 baby aspirin per day. the
> recommended method is: disolve in small amount of water and use a
> syringe to make sure he swallows the mixture.
> Before, he was on 1 baby aspirin 2x week.
> Seymour weighs 8.8lbs at this time.
> Good luck with your kitties.
> Ahhh...imagining that irresistible "new car" smell?
> Check outnew cars at Yahoo! Autos.
> [Non-text portions of this message have been removed]