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Pet Forum / Miscellaneous / Animal Health / February 2006



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Improper use of medicine may have killed my cat

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sygsix@gmail.com - 23 Feb 2006 15:06 GMT
Hello all, and sorry for the cross-post. The folks over at
rec.pets.cats.health+behav informed me that this would be a more
appropriate place for my question. I have a situation I'd like to know
a bit more about.

Recently my cat, who has lived with my parents for the past 13 years
(because I lived first in a small apartment and then abroad) recently
stopped eating. My dad brought her to the vets and she was diagnosed
with toxoplasmosis. She seemed to be deteriorating even with the drugs
they gave him, namely interferon and clindamycin hyrochloride. Then she
started to get better, started eating again and we thought all was ok.

One day my dad was unable to administer the medicine in the morning so
he decided to wait until that evening. He had already mixed the two
medicines in the eyedropper and simply left it out on the counter top.
The vet had told him that mixing the two was no problem, which made my
dad's life easier -- getting drops down a cat's throat once is hard,
twice is just asking for scratches.

The problem is one of the drugs -- interferon -- had to be
refridgerated, and always was, except that particular day, when he left
it out on the counter all day in the eyedropper.

That evening when he gave her the medicine she went nuts, started
jumping up in the air and running in circles, panting wildly and
finally collapsed in the corner breathing heavily and with both front
paws twitching. She died during the night.

Now my dad feels really guilty and thinks he killed her. I don't know
what happened. She seemed to be getting better, and from everything I
read toxoplasmosis doesn't usually kill the cat. But she was almost 14
years old.

My question is, is it possible that leaving the interferon out all day
caused it to become toxic and killed my poor kitty? Even if it turns
out that people tell me "yes" I won't say anything to my dad, it would
just kill him and he already feels bad enough. But I would like to
know.

Thanks in advance for any information.
Bob
John Wesley - 23 Feb 2006 17:57 GMT
> That evening when he gave her the medicine she went nuts, started
> jumping up in the air and running in circles, panting wildly and
> finally collapsed in the corner breathing heavily and with both front
> paws twitching.

I believe I would have called the vet at that point!  

> She died during the night.
Sandy Christmus, DVM - 23 Feb 2006 19:36 GMT
> [snip]
>
[quoted text clipped - 16 lines]
> Thanks in advance for any information.
> Bob

Sorry for your tragic loss, Bob.  I can assure you and your Dad, though,
that leaving the interferon out of the fridge did nothing to the cat.
It's refrigerated because it's heat-labile, meaning the chemical won't
be as effective if it's kept in a warm place.  I doubt leaving it out
for a day did anything, but the only problem leaving it out would do is
that it may not be as effective.  Honestly, it's unlikely the interferon
was doing anything in the short term, anyway.  It's considered an immune
stimulant and typically used for more chronic situations.  Is there a
chance the kitty was diagnosed with FeLV or FIV, too?  How about other
complicating problems older cats can have, like hyperthyroidism, heart
disease or kidney failure.  Toxoplasmosis causes neurologic disease, so
it's very possible that it's coincidental that the cat had a severe
neurological attack/seizure when your Dad was medicating her.  There's a
chance it was going to happen regardless of being medicated.

Sandy Christmus, DVM
sygsix@gmail.com - 23 Feb 2006 20:32 GMT
Thanks very much for your reply. As for the previous reply, it was a
sunday evening in a small town in upstate NY. I am sure an emergency
vet could have been found but from the looks of things, it probably
would not have helped. I, too, would have tried to find a vet. I also
would have tried not to leave the medicine out all day. But that's
water under the bridge. The vet my dad goes to was a bit insensitive --
when she was diagnosed with toxoplasmosis my dad asked if she could be
saved. The vet's reply was, "That depends on how much she's worth to
you ..."

Not very compassionate. Perhaps he wouldn't have been so cruel had he
known that my dad was very close to her, she was like his best friend.
Or that my dad had recently lost his wife of 30 years the previous
summer, and since that time the cat had become even more important.
Anyway, without loading too much responsibility on the vet's callous
words, we should all be cautious when we speak, you never know the harm
you can do.

I don't know if he was diagnosed with FeLV or FIV (this is feline AIDS,
correct?), I don't think so, my dad would have mentioned it. I guess it
was just "her time". It was a shame she had to go then, and in that
way. But she lived a long life, was a very happy (if not lazy) cat, and
hopefully, she didn't suffer much.

Anyway, thanks again for your response. Take care.
Bob

> > [snip]
> >
[quoted text clipped - 33 lines]
>
> Sandy Christmus, DVM
 
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