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Pet Forum / Miscellaneous / Animal Health / April 2006



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New here - simple Heartgard question

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Gary Walker - 17 Apr 2006 09:38 GMT
Hi,

I have an adorable little Dachshund. Unfortunately, she
was allowed to contract heart worms in her former life,
BR - (B)efore (R)escue.

As in most cases, she underwent the standard heart worm
treatment(s) several years ago, and has been prescribed
a lifetime diet of Heartgard, as perpetual prevention.

The form of this Heartgard, administered monthly, is the
chewable variety, which has some kind of meaty taste. It
specifies "Heartgard plus blue - 68 mcg". However, the
administration of this med is pretty tough on her, much as
the original treatment, to a lesser severity. Even though
we break the dosage in half for a morning and afternoon
administration, it usually leaves her lethargic and a little
less than 100%. But, she's still eating, functioning OK.

Also, being twice the age as when the initial treatment was
conducted, I feel contributes to her med sensitivity.

The dosage is for dogs <=25 lbs. But, she only weighs ~12 lbs. My thoughts
are that based on this, that she is really receiving a 200% dosage. My Vet
who BTW, has done wonders on her prior life's medical neglect, simply say to
continue the single tab dosage. I think that she might do better(less toxic
shock) by a 50% dosage, by virtue of her size.

I'll always adhere to the Vets directive(s) but, as fuel for
further reduction pleas, I'm looking for any similar experiences where such
a dosage has been reduced to more closely reflect the pet's true size.

Thanks,

Gary
Toni - 17 Apr 2006 11:02 GMT
"Gary Walker" <twf@swbell.net> wrote in message news:OtI0g.16476>
> I'll always adhere to the Vets directive(s) but, as fuel for
> further reduction pleas, I'm looking for any similar experiences where
> such
> a dosage has been reduced to more closely reflect the pet's true size.

Is there a reason you haven't tried her on an alternate medication like
Interceptor, Sentinel, or Revolution?
Dogs can be intolerant of any medication for various reasons and it's not
like you have only the one choice. And many times the problem is not the
medication itself but the flavoring or composition used to make the chewey
carrier.
Revolution is a topical- I might look at that if I were you.

Signature

Toni
http://www.irish-wolfhounds.com

Gary Walker - 17 Apr 2006 18:13 GMT
> "Gary Walker" <twf@swbell.net> wrote in message news:OtI0g.16476>
> > I'll always adhere to the Vets directive(s) but, as fuel for
[quoted text clipped - 9 lines]
> carrier.
> Revolution is a topical- I might look at that if I were you.

Well, I never really /knew of/thought about/ an alternative.

The Vet simply prescribed the Heartgard product, and I
merely operated within that guideline. I will mention that,
as a possibility during my next checkup visit though.

Thanks, for your advice.

Gary
Deborah, DVM - 17 Apr 2006 12:55 GMT
> Hi,
>
[quoted text clipped - 34 lines]
>
> Gary

She may have an ivermectin sensitivity.  Pretty unusual, especially at
heartworm doses, but theoretically possible.  Why don't you try interceptor?
It's another heartworm preventative, equally effective, but a different
active ingredient.  Or try heartgard tablets, in case it's the chew.
Personally I don't like Revolution at all -- I've seen dogs contract
heartworms while on this product (presumably because it didn't absorb
properly through the skin, or possibly improper administration).

FYI, you really shouldn't break the heartgard chew up, even to give it in
the same day.  It needs to all be given at one time.  You also cannot give a
"half dose" by breaking it up -- the medication is not distributed evenly
inside the chew, so if you give her half, she might not get any medicine at
all!  I've given 2 lb puppies the full dose of heartgard and *never* seen a
problem -- it's just such a safe drug.

Deborah, DVM
Toni - 17 Apr 2006 16:28 GMT
"Deborah, DVM" <dr_deborah@hotmail.com> wrote in message news:WmL0g.104218
> Personally I don't like Revolution at all -- I've seen dogs contract
> heartworms while on this product (presumably because it didn't absorb
> properly through the skin, or possibly improper administration).

Would you not recommend it for cats either?
Mine are 100% indoor, but I'm in South Florida and see mosquitoes inside
frequently.

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Toni
http://www.irish-wolfhounds.com

Deborah, DVM - 17 Apr 2006 23:55 GMT
> "Deborah, DVM" <dr_deborah@hotmail.com> wrote in message news:WmL0g.104218
>> Personally I don't like Revolution at all -- I've seen dogs contract
[quoted text clipped - 4 lines]
> Mine are 100% indoor, but I'm in South Florida and see mosquitoes inside
> frequently.

No, I really like it for cats.  Sorry for any confusion there.  But it works
a bit differently....cats groom themselves so much that you actually get a
lot of oral absorption of the product (which is why it works for some
intestinal worms in cats but not dogs).  Plus we just don't see the same
degree of heartworm disease in cats as in dogs, so the possibility of an
occasional failure doesn't bother me nearly as much!

Deborah, DVM
Toni - 18 Apr 2006 02:07 GMT
"Deborah, DVM" <dr_deborah@hotmail.com> wrote in message > No, I really like
it for cats.  Sorry for any confusion there.  But it works
> a bit differently....cats groom themselves so much that you actually get a
> lot of oral absorption of the product (which is why it works for some
> intestinal worms in cats but not dogs).  Plus we just don't see the same
> degree of heartworm disease in cats as in dogs, so the possibility of an
> occasional failure doesn't bother me nearly as much!

So how obsessive should we be about keeping cats segregated after Revolution
is applied?
Should we try to keep them from licking one another for hours, or is
incidental ingestion something beneficial (as your post sounds) that we
should actually allow?

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Toni
http://www.irish-wolfhounds.com

Deborah, DVM - 18 Apr 2006 12:53 GMT
> So how obsessive should we be about keeping cats segregated after
> Revolution
> is applied?
> Should we try to keep them from licking one another for hours, or is
> incidental ingestion something beneficial (as your post sounds) that we
> should actually allow?

With any topical product in cats, I usually recommend separating for at
least a few hours, to allow the product to distribute/penetrate as needed.
I never really thought about Revolution in cats, and how mutual grooming
would affect it!  I suppose, theoretically, if one cat were grooming both
himself and another cat, that cat might get extra revolution, which wouldn't
hurt him, but the other cat might not get enough!  I doubt there's enough
absorption to make a difference, but it would be an interesting question to
ask the manufacturer!

Deborah, DVM
Sherri - 20 Apr 2006 03:02 GMT
> > So how obsessive should we be about keeping cats segregated after
> > Revolution
[quoted text clipped - 13 lines]
>
> Deborah, DVM

The vets I work for have stopped using Revolution,same reason as Deborah
Gary Walker - 17 Apr 2006 18:13 GMT
> > Hi,
> >
[quoted text clipped - 51 lines]
>
> Deborah, DVM

Thanks Deb.... Toni, in a previous note, mentioned the
alternative meds, which I will visit during Mollee's next
checkup visit. Additionally, I think your comment(s) on
dividing the medication is/are about the same as I was told
by my Vet.

Thanks again,

Gary
Jossie Hickory - 18 Apr 2006 01:58 GMT
i have a 6lb chihuahua and i also give him the <25lb heartguard. its
the right dose and as debi said its a rather safe drug. on the other
hand, it does sound like your dog may have a sensitivity to something
in heartguard. good luck =)

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"God created the sky and the water, the beasts and the birds, man and
land. But he did not create the dog, for he already had one." American
Indian Proverb

Gary Walker - 18 Apr 2006 03:26 GMT
> i have a 6lb chihuahua and i also give him the <25lb heartguard. its
> the right dose and as debi said its a rather safe drug. on the other
> hand, it does sound like your dog may have a sensitivity to something
> in heartguard. good luck =)

Thanks Jossie.... I guess by my logic, your Chihuahua is
receiving a 400% dosage. It appears that I might be
mathematically accurate, but wrong otherwise.

Gary
 
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