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Old 05-10-2010, 09:18 PM   #1
firefyter
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Unhappy Warning for users of Comfortis flea control!

Be aware there are some rare side effects if using Comfortis in addition to ivermectin based worming products such as Heartgard. My daughters 6 month old blue merle Border collie has been at the vet since thursday with IV's we are hoping she pulls through. You can read more on Comfortis web site.
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Old 05-10-2010, 09:21 PM   #2
Breezy
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holy cow! This is what i have had Brutus on for the past year! Thanks for the heads up
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Old 05-10-2010, 09:28 PM   #3
WCB
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We had 4 dogs, 3 pups, on Advantage flea/tick drops. 1 pup died, my daughters... Advantage and the EPA said it wasn't the drops but there are a ton of post on the net that say otherwise. Drugs is drugs...
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Old 05-10-2010, 09:33 PM   #4
firefyter
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Comfortis is an oral flea control, we should have stayed with the drops. My heart goes out to your daughter,WCB, mine isn't happy at all.
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Old 05-10-2010, 09:40 PM   #5
Breezy
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calling my vet tomorrow
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Old 05-10-2010, 09:54 PM   #6
Genevieve
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I've been using frontline for years with no problems. Hope the pup is ok.
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Old 05-10-2010, 10:14 PM   #7
WCB
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My mistake, it was Frontline, not Advantage flea drops. And even my Vet said it "probably" wasn't the drops as they tested thousands of dogs. But it's getting put on "millions" of dogs and cats...
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Old 05-10-2010, 10:27 PM   #8
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Sorry to hear that. Hope he comes out ok. That's why I just bath mine every week or two.
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Old 05-11-2010, 01:04 AM   #9
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Have used heartguard and comfortis for 2 years on my pup, no problems
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Old 05-11-2010, 07:30 AM   #10
agvet2004
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Very sorry to hear this. Be sure that her vet reports this adverse event to the manufacturer and the Center for Veterinary Medicine, and potentially the FDA. Was the dog on the ivermectin product for something other than heartworms, or was this just its normal dose of heartguard? Ivermectin based products can be tricky in the white footed breeds, sometimes even at the normal doses. I hope that everything goes well.
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Old 05-11-2010, 07:32 AM   #11
Artos
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i know the heartguard med warns about not giving it to certain breeds
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Old 05-11-2010, 07:36 AM   #12
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Thanks for the warning, my Lacy pup starts on the heartguard next week.
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Old 05-11-2010, 07:37 AM   #13
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A couple of years ago, I lost 2 cats due to the flea stuff you get at WalMart. The little dropper you put behind their neck. I think it was Hartz.
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Old 05-11-2010, 07:54 AM   #14
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Comfortis rep is talking with my vet they may be willing to pay for some of the tests to add to their research, it does say in the warnings about possible side effects of using both products, she apparently had one.
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Old 05-11-2010, 08:06 AM   #15
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Good to hear that some or all costs may be covered. Good luck. Feel free to ask any questions.
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Old 05-11-2010, 02:49 PM   #16
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I don't know if you meant that for everyone Agvet2004, but I have questions. What kind of side effects are we talking about with mixing heartgaurd and comfortis? I use the Comfortis because it's the ONLY thing I have found to control the fleas since my neighbors don't even try. What kind of dewormer/heartworm preventative can I use with Comfortis safely?
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Old 05-11-2010, 03:23 PM   #17
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Fireguy,
you might try going to Fleabusters.com. I went there last year and purchased live nematodes and sprayed on my backyard. Those jokers kicked arse on my flea population and didnt have a problem last year. In fact I just finished spraying my yard two days ago with nematodes. I bumped up this year and bought a pack of six million for 1/4 acre. And yes, before anyone ask, I did count them. LOL
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Old 05-11-2010, 03:39 PM   #18
agvet2004
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Quote:
Originally Posted by txfireguy2003 View Post
I don't know if you meant that for everyone Agvet2004, but I have questions. What kind of side effects are we talking about with mixing heartgaurd and comfortis? I use the Comfortis because it's the ONLY thing I have found to control the fleas since my neighbors don't even try. What kind of dewormer/heartworm preventative can I use with Comfortis safely?
Heartguard and comfortis together should be fine. The problems come in when comfortis is used with higher doses of ivermectin based products. These doses are typically used to treat external parasites (demodex) and potentially the doses used when large animal ivomec is used in small animals off label. Ivermectin sensitive animals are more at risk when using heartguard combined with comfortis, which is what likely happened in the case above. What kind of dog do you have? If it is not one of the white footed breeds (collies, aussies) you should be fine.

The most common side affects from comfortis are vomiting after the first dose, reduced appetite, and diarrhea. These decrease with subsequent usage.
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Old 05-11-2010, 03:39 PM   #19
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Quote:
Originally Posted by firefyter View Post
Comfortis rep is talking with my vet they may be willing to pay for some of the tests to add to their research, it does say in the warnings about possible side effects of using both products, she apparently had one.
Any updates?
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Old 05-11-2010, 04:57 PM   #20
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I've got a lab mix, half lab half blue heeler, he weighs in about 80 lbs. Also have a Golden Retriever who is full blood and weighs in about 80 lbs and we have a Jack Russel who's about 25lbs.

I could deal with the loss of appetite, but the rest of it would be no bueno. We're up to a 30 lb bag of Beneful every week and a half or so. Them big dogs eat a lot, but I don't know what I'd do without them, they're like my kids.
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Old 05-11-2010, 05:00 PM   #21
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Quote:
Originally Posted by txfireguy2003 View Post
I've got a lab mix, half lab half blue heeler, he weighs in about 80 lbs. Also have a Golden Retriever who is full blood and weighs in about 80 lbs and we have a Jack Russel who's about 25lbs.

I could deal with the loss of appetite, but the rest of it would be no bueno. We're up to a 30 lb bag of Beneful every week and a half or so. Them big dogs eat a lot, but I don't know what I'd do without them, they're like my kids.
Since you have been using it without any problems, you should be fine with your dogs. I wouldn't expect any problems to start now.
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Old 05-11-2010, 05:02 PM   #22
txfireguy2003
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Well, I'm using the Comfortis, but no heartworm preventative YET. I have been meaning to start a prevention plan, but just haven't gotten around to it.
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Old 05-11-2010, 05:06 PM   #23
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Quote:
Originally Posted by txfireguy2003 View Post
Well, I'm using the Comfortis, but no heartworm preventative YET. I have been meaning to start a prevention plan, but just haven't gotten around to it.
PM sent.
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Old 05-12-2010, 08:03 AM   #24
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Update ! Pup came home yesterday, she is a little weak still, but otherwise doing great. thumbs up for the vet (old school) has been my vet over 20 yrs. 700 bucks was well worth the smile on baby girls face when she came home! Thanks for the well wishes and input from everyone, especially Agvet!
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Old 05-12-2010, 08:05 AM   #25
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Good news!
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Old 05-12-2010, 08:23 AM   #26
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That is great news! Glad everything is improving.
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