Ivermectin dosage for cats -- please read there is more

bubbabalooJanuary 1, 2009

I use Ivermectin on my dogs for heartworm prevention. I have heard it can also be used on cats as well and if so what would the dosage be.

Also, one of my cats has skin irratation, I'm unsure if it is a type of mange or not. It is sorta scabby, some hair loss, and when she itches off the scabs it is pussed up like if it was a fresh wound. I have been keeping her inside thinking it could've been allergies. None of my other cats have any of these symptoms.

If you think it is really bad allergies please let me know what the dosage for benedryl would be for cats.

Thanks in advance,



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I can't answer your question but it might help others if they knew the breed of cat. I know some breeds are very sensitive to meds. For instance Lindane dips can be fatal to siamese, ask me how I know.

    Bookmark   January 3, 2009 at 8:22PM
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Ashley, I probably wouldn't give any medicines to my animals without checking with my vet first. Unfortunately, I can't help you with any of that. One thing I've noticed about several of our cats is that when they get a flea infestation they can get those skin irritations like you mention. We usually treat them with prescription stuff over the summer but fall back on Hartz or something over the winter. Fleas aren't a huge problem over the cold months but still there, or that has been our experience. I also learned that some cats can actually be allergic to fleas. Hope you get your kitty mended well. Lori

    Bookmark   January 4, 2009 at 10:08AM
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I buy my ivermectin from jr enterprises online and he has a dosing chart on his site for his for cats and dogs ... His solution is only .05% ivermectin tho so he has already diluted it for the buyer and its so much easier to know your dose than buying the ivomec thats intended to inject cattle with ( because of the sizs difference ) ... And its enough in the bottle ( which he sells for $25 ) to last 5, 35 pound dogs 2 years ! So the cost isnt bad at all ! ... I have used this for my german shepherd mix and my miniature dachsund for several years now ( my dachsund of 10 yrs passed away 2 months ago rip Buffy ) ... But i intend to use this stuff for my new puppy chihuahua when hes old enough hes only 9 weeks now and only 1 pound 13 oz lol...

I hope this helps someone

Also your kitties skin problem does sound like flea allergy to me .. My dachshund was allergic and even if we couldn't find one on her she would itch we used advantage on her and in 3 days she had hair growing in the spot she had made raw ... I would see about some good flea meds and for buffy i had to keep her on the stuff year round ... I was using k9 advantix ll most recently before she passed. ( we have ticks here bad ) but i found a seller on ebay to buy it really reasonably... Also i buy the stuff for the biggest dogs and i use a needle and syringe and draw it into it and give my lil dog her dose and my big one his dose and still have some left ( if you do the math andactually figure out how ,much your dog needs ... And i would shove the tip of the needle into a blob of dried silicone to keep air out and store in the fridge till needed it usually gave me enough for 2 more months for my little dog ... ...
... :)
I wouldnt do it without doing my homeowork tho...

    Bookmark   June 19, 2013 at 12:03AM
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It depends on what you are using it for, the age and weight of the cat. Like many drugs, when you use it on a cat it is used "off label" or for a purpose other than what the drug was originally desiged for. The Ivermectin or Normectin or other brands are used to kill worms in cattle. If I remember correctly the drug is found naturally in the enviorment in another country and they found through trial and error that it kills parasites by neurological dissorder. The same can happen to an animal that is given an overdose.
If you plan to give it to a cat or dog you need to use the injectable type 1% type. It will absorb through the skin somewhat but not as well as giving it subque or just under the skin with an injection.
Our vet gave us the .1 ml or cc dosage for our cats to kill and protect the rescue cats from ear mites, hook worms, and round worms. I do not think that it works nearly as well for fleas as Advantage or some of the other specific flea type treatments.
It does work for mange as we had a cat diagnosed with mange and we were given the prescription from a cat specialist vet .1ml per week for 5 weeks.
The dosage for heartworms is much much less than the dosage for ear mites and worms.
We never dose kittens or young juvenile cats with Ivermectin.
We dose with 1% undiluted injected anywhere subque, with .1 ml for adult cats, then repeat in exactly 15 days the same dosage. You can use the ivermectin topically in the ears which is the most absorbable place on a cat. It will kill the ear mites but may not absorb well enough for to take care of parasites such as roundworms or hookworms. If you use it topically the dosage can be around .2ml per ear.(i have used it at this dosage in the ears on adult cats without any adverse side effects)
I don't like the idea of injecting this under the skin of a cat and if I had something that was more natural that "I" have found that would work I would use it. But for now this works and having ear mites may seem like a small thing but cats will self mutilate themselves scratching and can get hematomas of the ear and they will never look the same after one. Hook worms and round worms are bad stuff so IMHO it is far better to treat with what works than take a chance on what could happen to a cat.

All that being said there are products that work such as revolution, but it also has a ivermectin typ product in it.

    Bookmark   July 31, 2013 at 11:12AM
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