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How to Buy Cheap Heartworm Preventatives

Updated on May 29, 2017
DrMark1961 profile image

Dr Mark is a small animal veterinarian. He works mostly with dogs and exotic animals.

Can you buy heartworm prevention for your dog for less than 10 dollars a year? Sure you can. One of the great things I´ve noticed about a lot of the writers here at Hubpages is that they are trying to work on their craft and get by on little money. Living frugally seems to be the watchword here. There are a lot of areas in which I cannot help you because, despite my best efforts, I still need some money to get by. One thing I do hope to help with is the cost of keeping your dog healthy. Heartworm preventative is a big expense for everyone that keeps dogs. It should be readily available to everyone, no matter what their income, since it is a terrible disease-worse than many others because it is so easy to prevent.

The big drug companies that sell heartworm preventative make a healthy profit off of their products and are not about to help owners find a cheaper option. I do not have stocks in these companies, do not market their products, and do not mind if you find an alternative. What I care about is seeing that all dogs are healthy, and I would like to give you this alternative that I use. What is it? You can prevent heartworm disease by using the same medication that is sold by the drug companies, for a fraction of the price. If you have a large dog you can order the cattle ivermectin from Amazon.com. The cost of a 50cc bottle is about equal to a 6 month box of heartworm preventative (or much less, depending on where you are buying your preventative). When the generic ivermectin arrives, it should be kept in the refrigerator. The expiration date is about 3 years.

As I mentioned in my other article about heartworm disease, quite a few of the doses listed for generic ivermectin on the internet are absurd and the label on the most common heartworm preventative is only 0.006 mg/kg. Since ivermectin is sold at 1%, or 10mg/cc, a 20 kg dog needs less than 0.05cc. The ivermectin dose is so low that it needs to be drawn up with an insulin (diabetes) syringe.

The only insulin syringes I can find online with a needle are for sale only as a full box, and you do not need to buy 100, really you only need 1. There are larger syringes for sale with needles but you cannot use a large syringe to dose a dog. I would recommend you try to buy a single insulin syringe with a needle from a local pharmacy. It would be cheaper and more accurate. Since the insulin syringe does not need to be sterile so you can reuse it. I keep mine in the refrigerator next to my ivermectin but I do not have children at my house so do not need to worry about the syringe in the refrigerator. If you need to be concerned please keep it out of reach of children.

On another site I read recently the writer was concerned about the high dose of ivermectin when preventing heartworm for small dogs and recommended making up a 30:1 dilution using propylene glycol. At this dilution rate 0.1cc contains only 333 micrograms of ivermectin so it is easy to dose a small dog at 0.1 cc per ten pounds. The site recommends mixing 0.1 cc of ivermectin 1% with 3 cc of propylene glycol.

The only problem with that is buying the propylene glycol, an extra 3 cc syringe, and having another container to keep the dilute ivermectin in. A helpful hubber from Texas suggested purchasing the 0.08% ivermectin for sheep so I have included an Amazon capsule with that product. An 8 ounce bottle is enough to treat a one-hundred pound dog hundreds of times so if you have smaller volumes available, or want to divide up a bottle with your neighbor, it will not be any more expensive than the product marketed for cattle. I do not have it available here but another site said that there was a two year expiration date, so even if you had to buy a bottle by yourself it would only cost about $15 per year.

Dogs only need about 3.5 micrograms per pound to safely prevent heartworm disease, according to the makers of Heartgard, but due to some recent research done at Auburn I am including the dose for about 7 micrograms per pound. Since one milliliter of the sheep product contains 800 micrograms, you only need to give:

Dose of sheep drench ivermectin
Weight of the Dog
Number of Micrograms
0.1 ml
up to 12 pounds
80 micrograms
0.2 ml
12-26 pounds
160 micrograms
0.3 ml
27-50 pounds
240 micrograms
0.4 ml
51-70 pounds
320 micrograms
0.5 mll
71-90 pounds
400 micrograms
0.6 ml
92-112 pounds
480 micrograms

Since you are using such a small amount of this drug you could even double the dose and still only use a tiny amount. There is a comment in the advertisement about this cattle ivermectin being dangerous for dogs. If it is given as an overdose it will be dangerous. Ivermectin is used at a much higher dose when treating demodectic mange (0.3-0.6 mg/kg) and for a long time, an average of 3-8 months. It is quite safe even at those levels.

It would be more economical to treat the larger dogs with the cattle ivermectin but you can decide which product is right for you.

When the correct ivermectin dose is drawn up, you can put it on a dog biscuit or other dry food that your dog likes to eat. The volume of medication is very small but be sure to put it on a treat (something stinky!) where she will not notice the smell.

Owners of Collies, Shelties, OES, Aussies, and some other mixed breed dogs might be sensitive to ivermectin. If you are concerned in any way you can test for the mutation on the MDR1 gene that causes sensitivity. Testing is available though the Washington State University College of Veterinary Medicine, www.vetmed.wsu.edu/depts-VCPL/ . Of course these dogs can be given heartworm preventatives that do not utilize ivermectin (Revolution (selamectin) and Advantage multi (moxidectin) are both topical so treat fleas as well as preventing heartworm disease). Both of these medications are fairly new and will need to be purchased from your veterinarian.

Ajej and Achilles playing on the beach.
Ajej and Achilles playing on the beach. | Source

There might be some concern out there about reusing the needle and drawing up a small amount every month, as you are theoretically introducing bacteria into the solution as you do so. This is correct, but the number of bacteria introduced is almost insignificant, the medication should be kept refrigerated to reduce bacterial growth, and most importantly: the ivermectin is only to be given orally. Dogs have a lot of healthy bacteria population flourishing in their gut and a small dose on a dog biscuit is not going to affect them. If you needed to give this medication on top of a dead and rotting squirrel each month I would be concerned about GI upset; a drop on a little biscuit does not worry me. A benefit of using the sheep product is that it is easier to draw up and will not require you to find a syringe with a needle. You can order the 1cc syringe without needle individually and reuse it; you will not need to purchase an entire box of 100.

There might also be some concern because the heartworm preventative you purchase is marked “plus” and contains pyrantel pamoate. This is one of the cheapest dewormers on the market, used to treat roundworms in puppies. Roundworms may not even be an issue in adult dogs unless they are nursing. The drug also treats hookworms, a more important parasite and one that should be controlled. I have included the link to another article about deworming dogs; when it is appropriate and what medications you can buy and keep on the shelf. Even if your dog was continuously exposed it would still be cheaper to buy these drugs separately.

A medium sized dog is really only going to use about 2 cc of the ivermectin before it expires and needs to be replaced so if you have more than one dog and spend a lot of money on heartworm preventative every year, more than you can really afford, this is a good option. I live in an area blessed with a heavy mosquito population year-round and since this therapy is so cheap I bought a bottle of ivermectin and dose my dog once a month.

If you have a small dog, are nervous about drawing up the ivermectin into a syringe, if you are afraid to use your algebra and figure out the dose for your dog, or if you believe the advertisements and think that the branded product is safer than generic, then you are better off paying a little more and buying the product sold by your veterinarian. The heartworm preventative you can buy from your veterinarian comes in a chewable formula that most dogs like. Please continue protecting your dog however you feel is best.

How do you prevent heartworm in your dog?

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Dogs exposed every day, year-round
Dogs exposed every day, year-round

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    • DrMark1961 profile image
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      Dr Mark 2 months ago from The Beach of Brazil

      Thanks SmartandFun, I appreciate your comments and interest. A lot of the damage from HW may be from the Wollbachia bacteria, which is why the doxycycline may be helpful in many of the cases. We learn all the time, and HW is not killing as many dogs as it used to when I started out back in the 70s.

    • SmartAndFun profile image

      SmartAndFun 2 months ago from Texas

      Eduardo, I have read online that giving the antibiotic doxycycline along with ivermectin is more effective than ivermectin alone for dogs which are heartworm positive. If you Google it, you can find information online, including how much doxycycline and ivermectin to give each day within a certain treatment timeframe. Apparently doxycycline is common and inexpensive. One person wrote that they easily got it online without a prescription, but I believe doxycycline is a prescription-only medicine so I don't know what to make of that.

      I am not a vet so I would love for Dr. mark to chime in with his professional opinion. I only happened to read up on this a couple of years ago when I feared my dog was heartworm positive (luckily, he was not) -- so I don't have any experience with this. I just wanted to pass it along to you in case it would help you rid your corgi of heartworms while staying within your budget.

      I also wanted to send out a big thank you to Dr. Mark for sharing his professional expertise with us random people on the internet. If you already have an article on doxycycline/ivermectin please forgive me for not realizing it. Thanks again; you are providing a very helpful service!

    • DrMark1961 profile image
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      Dr Mark 2 months ago from The Beach of Brazil

      Eduardo, for the majority of pets that are infected, this will work to kill the youn worms, and the oldest will die out over time. It will not prevent any further damae to the heart, and neither this nor traditional therapy will take care of damae already done. (Sorry my letter jee is not workin, will me lots of mistakes. try readin articles on the slow kill method to treat heartworm infection.

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      Eduardo Beltran 2 months ago

      Hello,

      I have a small 16lb Penmbroke Welsh Corgi who unfortunately was tested positive for heartworms. He doesn't have any side effects yet, but I know he'll only get worse and that's why I want to start treating him ASAP. The cost to treat him is a little high and out of my budget at the moment. If i treat him with this medication, will this help him get better? What would be the dosage to give him? Any suggestions? First time every having to deal with this even though I live in Texas, where mosquitoes are everywhere.

    • DrMark1961 profile image
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      Dr Mark 6 months ago from The Beach of Brazil

      jrsummersill1: There is actually a pretty wide margin of safety for the ivermectin, so if he gave you the larger dose it may be because of resistance in your area. It is so cheap in that form that if I were in your shoes I would go ahead and keep following his recommendations. (In areas with no resistance you could use half that, but as I said you should go ahead and use the dose recommended in your area.) Thanks for the nice comment!

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      jrsummersill1 6 months ago

      Dr. Mark,

      I have read a few of your articles and find them very helpful. We currently have 5 large dogs ranging from 50-60 lbs a piece and have been using the cattle strength of ivermectin for years. Our vet actually gave us the dosage and a syringe--.10 cc's per 10 lbs of body weight. If I am reading your article correctly, though, we may be actually giving them too much each month. If so, what would be the correct dosage please?

    • DrMark1961 profile image
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      Dr Mark 18 months ago from The Beach of Brazil

      If you are sure about your dog´s weight, the treatment is 2400 mcg, or about 3 cc of the sheep drench. Some sources say every 3 days, others daily, and it usually is given for 60 days after the last negative skin scraping, so usually 3-8 months.

      If you do not have a vet to do the skin scraping, give the meds at least a couple of months after the skin clears up.

      It is a lot of work. If you can get him in to a local vet to watch the skin during the treatment I would definitely recommend it. Best of luck to you both.

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      Roybot 18 months ago

      Hey Dr.Mark, nice page, great info. I was wondering, how much Ivermectin is needed for a 175lb. dog with mange (I have the sheep drench)? Is the dose to be given weekly or daily and for a certain amount of time, or until symptoms totally wane? Thanks very much Dr.Mark.

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      Tricia and Gene 2 years ago from Southwest Louisiana

      Thank you for your help and quick response.

    • DrMark1961 profile image
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      Dr Mark 2 years ago from The Beach of Brazil

      Hi Tricia and Gene, for a dog that big give 1400 mcg, which is about 1.7 ml. Obviously you will not need to buy an insulin syringe for your dog as a regular syringe will work just fine.

      Since that is so much ivermectin, he might not like the taste. You can mix it with something else he likes (cream cheese, peanut butter, etc) to disguise it.

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      Tricia and Gene 2 years ago from Southwest Louisiana

      Can you please tell me what the dosage would be for my 200lb English Mastiff?

      Thank you for all the great advice.

    • DrMark1961 profile image
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      Dr Mark 2 years ago from The Beach of Brazil

      The company that sells heartgard (ivermectin that you buy through your vet) recommends it be given every 30 days, but it is actually safe to give it every 45 days. Yes, I agree there is still conflicting information on the disease but I still think 45 days is the safest interval that we can count on at this time.

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      marjon3 2 years ago

      Hello again. Does ivermectin kill larvae, or does it only kill the microfilaria? As i mention i live in nc by the coast. Would it be safe to treat my 3 pound dog every 75 days? There are conflicting information on how long it takes for microfilaria to change into larvae! Can you please help me undrestand that better? Thank you

    • DrMark1961 profile image
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      Dr Mark 2 years ago from The Beach of Brazil

      I can understand your feelings and if you lived further up north I would not even recommend this. A little Maltese or Chi in the house all the time is unlikely to be exposed, but even one worm can destroy them so it is not worth the chance.

      Thanks for your kind words. If I can help you in any way just drop me a note.

    • profile image

      marjon3 2 years ago

      Thank you so much Dr. I'm so afraid of commercial drugs. It kills me that i have to give him poison. Unfortunately i live by the coast in nc and i have no choice. I will try sheep drench. Will give him every 90 days from may to jan. Thank you again for taking time helping so many people.

    • DrMark1961 profile image
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      Dr Mark 2 years ago from The Beach of Brazil

      A 3 pound dog actually needs about 21 mcg of ivermectin, so you can give less for such a tiny animal, but you are talking about a very small amount of sheep drench and not even a TB syringe is going to dose that accurately. If you give 0.05 cc that is only 40 mcg, a very small dose.

      If you are nervous about giving this tiny amount for such a small dog I would recommend you buy the commercial product sold by Merial.

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      marjon3 2 years ago

      Hello. I have a 3 pound dog. Wouldn't the dosage of .05 be too much for him. The table states the dosage up to 12 pounds. By my calculation .03 will be more than enough. Can someone help me make sure im not making a mistake? Thank you

    • DrMark1961 profile image
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      Dr Mark 3 years ago from The Beach of Brazil

      I´m glad you gave him another dose, dugans, since that amount is so small I was really surprised when you mentioned the tummy upset. Good to hear everything was okay.

      For your new dog, the dose is 0.3 ml. Yes, the recommendation is to keep dogs that have tested positive on the drug year-round. The theory behind that is to kill any of the microfilaria (the offspring) so that no new worms develop. It is such a small dose that I think that it is worth it, especially in Florida.

      The drug really does work for 45 days, and the only reason that the company put "30 days" on the label is so that people would remember to give it (like on the first of every month). If you are going to keep track, and not forget, there is no reason not to use the 45 day regimen.

      Thank you for letting me know how the second dose went. The hard part about communicating here on the internet is that sometimes I never hear the follow up on a particular case.

      Good luck on your move back to Nevada. I do not know what part of the state you are moving to, but if it is the desert make sure you have air conditioning!!

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      dugans 3 years ago

      Hi Again - we, with the sibe above, gave the ivermectin with his FULL dinner 2 weeks ago and he had no tummy upset this time! NOW, we are adopting a 6 yr old sibe who was picked up by rescue as heartworm positive last year - she went through the slow kill method last summer and is fine now - my question is this...somewhere i recall reading that those dogs who have been diagnosed and treated as heartworm positive must never, ever go off of the heartworm meds - is this true? - i like the protocol of every 45 days that you suggest (the less toxins i can put in the better---i wish i didn't have to do this at all!) but we do live in coastal florida, so until we move back out west to nevada, we feel compelled to keep it up. Can you weigh in on this please? would she be okay on the 45 day regimen?

      she is 42 pounds, so would you calculate the dosage for us as a confirmation, so that we give her the right amount of sheep dip? we are grateful, again, for your help - thank you dr mark!

    • DrMark1961 profile image
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      Dr Mark 3 years ago from The Beach of Brazil

      No, with a Sibe there should not be. Who knows is he is sensitive to the carrier, but it is such a small dose that it does not even matter. The first, and always best treatment, for a vomiting dog is to leave them off food for 24 hours. Sometimes just resting the tummy is all they need.

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      dugans 3 years ago

      dr Mark: are there any side effects to watch out for? we are hearing a lot of tummy rumbling - gave it to him yesterday at lunch - he didn't eat this morning, then ate grass and threw up this aft - still not interested in eating and is a bit subdued - gave our 58 pound sibe .4ml of the sheep dip orally - thanks!

    • DrMark1961 profile image
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      Dr Mark 3 years ago from The Beach of Brazil

      7 micrograms is still a small dose, but you could probably get away with even less. I included the Auburn numbers because it is so cheap that its worth giving a little extra.

      As far as the expiration date, I cannot be sure. I think they put that date on there just to be safe, but cannot guarantee that. If you are only preventing heartworm in one dog, over 18 months you will only need about 10cc (keep 20 to be safe) so you can split a bottle with a neighbor that has several dogs. (A bottle is about 10 times more than you need, but they do not sell it in small bottles.)

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      dugans 3 years ago

      hi dr mark! just checking - if the meds have approx. 18 months till their expiry, are they really still usable for some time after that? also, to be safe, my 58 lb siberian should get 0.4ml of the sheep drench according to your calculations if you still believe the studies out of Auburn are more valid (twice the dose from the pharmaceutical formula)

      thank you so much for this info!

    • DrMark1961 profile image
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      Dr Mark 3 years ago from The Beach of Brazil

      If your dog is very small, less than 12 pounds, she only needs 0.1 ml of the sheep ivermectin.

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      Dixie 3 years ago

      What is the dosage for smaller dogs using the sheep ivermectin?

    • DrMark1961 profile image
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      Dr Mark 4 years ago from The Beach of Brazil

      Thanks so much for coming back by and leaving the comment. I get so depressed reading all the stories on the internet from people who have dogs suffering from heartworm, and just because they do not buy overpriced preventative from greedy multinationals like Merial. I am so glad I have been able to help!

    • SmartAndFun profile image

      SmartAndFun 4 years ago from Texas

      Hi Dr. Mark, I just wanted to thank you for providing the dog dosage for the sheep ivermectin. It is a real savings! I got 8 ounces of it for $30 and it will last for at least two years. The pharmacy where my family gets our medicine gave me (for free!) a small medicine syringe designed for infants. It is marked by tenths of a ml, so I can easily draw up the correct amount. It's very easy since I don't have to dilute the sheep-strength version, and thanks to your dosage chart I feel confident about the amount. Once a month when it's ivermectin time I just squirt the medicine into each dog's bowl of canned dog food (which they loooove) and they gobble up the canned food immediately without noticing the medicine. I don't see myself ever not owning at least one or two dogs, so over the rest of my life this is going to save me hundreds if not thousands of dollars! Thanks!

    • DrMark1961 profile image
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      Dr Mark 4 years ago from The Beach of Brazil

      Hi Mary, even the bigger boxer will only need between 189-231 mcg, depending on which source is most correct, so it is okay to give 0.05cc of ivomec. That is only one drop, and I usually put it on top of a dog biscuit so I make sure the dog takes it. It is impossible to get a smaller dose than this, and the margin of safety is so good that you can treat your smaller dog with this same dose. (If you were treating for demodectic mange with this product your big dog would get at least 0.2cc every day for up to 8 months). Let me know if you have any more questions I can help with.

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      Mary 4 years ago

      DrMark-

      Thanks for your response. I have the cattle strength and the syringes (we were able to buy them in a sealed pack of 10 off ebay). Can you confirm the correct dosage for my boxers, they are 46 lbs. and 66 lbs. Thank you for your help.

      Mary

    • DrMark1961 profile image
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      Dr Mark 4 years ago from The Beach of Brazil

      The "liability concerns" is doublespeak for "don't take away my business". The paste for horses is really strong (1.87%) but the sheep product looks safe even for smaller dogs. The amazing thing is that three years worth of the sheep product sold from a feed store costs less than 6 months sold through Merial.

      I just read your comment about the metric system. All drugs are already in metric measurements anyway, except a few old formulations like phenobarbital, that is still called grains. It would definitely help prevent accidents like the one you spoke of in your hub though.

    • Bob Bamberg profile image

      Bob Bamberg 4 years ago from Southeastern Massachusetts

      Great hub, DrMark, and great exchange of ideas, folks. I owned a feed and grain store and had customers who used the Ivermectin paste for their dogs, but they were haphazard about it, putting a dab on their fingertip and letting the dog lick it off. The syringe is calibrated for a thousand pound animal and, if I remember right, the graduations start at hundreds of pounds. But it sure is cheap...$7.99 a syringe and it would expire before you were able to use it up. I asked a couple of vets if they'd work up a conversion so that these people wouldn't OD their dogs, but they begged off, siting liability concerns.

    • DrMark1961 profile image
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      Dr Mark 4 years ago from The Beach of Brazil

      Yes Mary I use this on my dog since mosquitoes are a big problem here and heartworm is also a problem. I use the cattle strength since she is pretty big but for a smaller dog you should buy the product labelled for sheep. It only needs to be given once a month so I always do it on the 1st so I do not forget.

    • profile image

      Mary 4 years ago

      Hi DrMark

      Thanks for the useful info. Some friends told me about this and I wanted to double check the info.

      Do you happen to use this for your dogs?

      Also, is the dosing above per month?

      Thanks

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      It seems like good insight. I think they try to scare people into believing they are more prevalent than they really are.

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      DoItForHer 5 years ago

      My vet said Billings is seeing more of it and more dogs are treated for it there, but he isn't too worried about it here. A trainer here treats her dogs for it as she feels it is enough of a concern.

      Not a definitive, researched opinion, but rather some insight from some people residing here.

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      Dont they already claim it is there? I have seen maps of the US showing that state as a low risk area, with a low level of heartworm disease.

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      DoItForHer 5 years ago

      I don't worry about heartworm as I live far enough north to not have the Mosquitoes that transmit it; however, it was documented 240 miles south of me a few years ago.

      It's a matter of time before the temperature gets warm enough to allow heartworm to establish itself this far north. (Montana)

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      FutureDrKate 5 years ago

      haha true!

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      For a big lab it will be worth it, and I am sure you have access to the syringes. It should be a good deal for you.

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      FutureDrKate 5 years ago

      That's so interesting! Thanks!

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      Thanks Brett I will go over there now. A state law? Not anywhere in the US that I am aware of. (I do not kow how a legislator would even justify such a stupid law.) I know there are laws about rabies vaccinations and liscences.

    • Brett Winn profile image

      Brett Winn 5 years ago from US

      My vet said the HW test was a state law. Not sure whether that was true or not ... I am fortunate to have a vet who doesn't micro manage ... if I don't want a shot, he's cool. He understands that I don't want to over vaccinate and that I give my own vaccinations. And yet he's still there for me when my dog has genuine health problems. I am blessed.

      Dr. Mark, would love to know what you think of my hub https://pethelpful.com/dogs/The-Truth-About-Dog-Va... as the hub has been out there a couple of years now and is in danger of being dated ... but only if you have the time and are interested .....

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      That is really wrong. Normal, but wrong.

    • Cat R profile image

      Cat R 5 years ago from North Carolina, U.S.

      My former vet made HW tests mandatory. If your dog hasn't been tested within a year, you have to have it. Others make a capstar pill mandatory and charge $7 for a $3 or less pill.

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      Thanks Cat. Veterinarians make their profit on vaccines instead of charging for their exams and professional services. It is really a dumb move, and made worse by corporate practices like Banfield that give away the exam for free and expect to make all of their profit off of the vaccines (which they give way too often anyway). It is the same with the heartworm preventative; veterinarians expect to stay profitable selling something that costs many times more than it should, and there are so many better alternatives out there. I am glad this article helped and hope that more people can use this information.

    • Cat R profile image

      Cat R 5 years ago from North Carolina, U.S.

      Most of my friends have been using ivermectin for a long time and I know of quite a few dogs that became heartworm free after a certain time. I personally prefer the tube (actually for horses), but have heard a lot of conflicting info about the dose.

      I know that my dogs tested negative after being on ivermectin for years and I love the effect and the much cheaper price. It is sad that a lot of vets charge so much for things that can be bought much cheaper. One of my former vets charged $40+ for shots, but the 5-Way can be bought from Dr. Foster & Dr. Smith online for less than $3 if you buy a box of 25 (which you can share with friends if you only have one dog). The bordetella is about the same or slightly more. A local rescue does $5 rabies clinics with the vaccination bought online and still makes a huge profit.

      I appreciate the info on the does and will be happy to use them. Great article. Info like this can help people affort good care for their pets.

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      This would be a big money save with those big Danes! A bottle will still last you for years. I do not think the equine paste is great in dogs since it is more concentrated but with your dogs it may be okay. If you need any help getting the doses right please let me know and I will be glad to help.

    • habee profile image

      Holle Abee 5 years ago from Georgia

      Wonderful info! I've used Ivermectin on horses, and I've always wondered if it would work on heartworms in canines. Great to know! Voted up, etc.

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      Thanks Brett, I think the MDR-1 testing is worth it too. According to the Merial people this ivermectin dose is so low that it would not cause problems even in sensitive dogs, but I think it is better to test if there is any doubt.

    • Brett Winn profile image

      Brett Winn 5 years ago from US

      I have done this for years, and saved a mint, I am sure. I have Australian Shepherds and Border Collies, but they have all been MDR-1 tested. The testing is worth the expense for the peace of mind, especially since Interceptor seems to no longer be available.

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      Since the paste is 1.87% ivermectin, the liquid 1%, a 20kg dog would need about 0.02 cc. This dose is very low, and the paste sold does not allow you to dose that low. It is much easier to overdose with paste.

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      ´Thanks somethgblue I just highlighted a link, but need more backlinks to other dog sites. Nabiru thanks you for your help!

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      Theophanes 5 years ago from New England

      Yes I know. I had a pit bull come to me with mange that required 9 months of daily Ivermectin to get rid of it. I realize it is the same drug, obviously. I do not change my opinion. Its just a lot easier to overdose with liquid, that's all.

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      All drugs can be dangerous if overdosed, even aspirin

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      Dr Mark 5 years ago from The Beach of Brazil

      This should be given orally, no deaths can be caused without an overdose

    • DrMark1961 profile image
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      Dr Mark 5 years ago from The Beach of Brazil

      The injection ivermectin and paste are same drug

    • DrMark1961 profile image
      Author

      Dr Mark 5 years ago from The Beach of Brazil

      sorry for choppy comments having salty computer problems

    • DrMark1961 profile image
      Author

      Dr Mark 5 years ago from The Beach of Brazil

      Theophanes I explained in the article that the drug is to be given orally; it is also given orally in demodectic mange

    • Theophanes profile image

      Theophanes 5 years ago from New England

      Injectable Ivermectin is great for mange but I would not give it for heart worm. The risk of injecting too much is too great. It only works for larger dogs. Personally to keep heart worm at bay for my own dog and cats I use Ivermectin paste. I buy it at the feed store where it is sold for horses. A pony size dose costs between 7-12 dollars and it lasts for as long as its still good. You can also buy pyrantel in the same way if roundworms are a concern. I believe in the safety of the Ivermectin paste because I started using it with my fancy rats (who had mites) years ago and my twelve precocious girls sucked the whole tube into their cage when I wasn't looking and consumed enough for a 2,000 pound horse. None of them died. I have however heard of deaths associated with injectable Ivermectin which is why I only suggest it in cases of demodectic mange in larger dogs and even then only to very capable people.

    • somethgblue profile image

      somethgblue 5 years ago from Shelbyville, Tennessee

      You once told me some stats about your hubs that I find a little surprising. You are a talented writer with a passion for a certain subject, the dog whisperer of Hub Pages.

      However the tedious and let's face it not so exciting part of writing in this community is using ALL of the tools at your disposal to promote your hubs.

      As I learned fairly quickly passion and talent alone won't get the word out, so I would like to make some suggestions. If this comment is out of place don''t hesitate to delete it.

      Use some keywords in the content of your Hubs to promote some of your other hubs that are pertinent to the subject. In edit mode highlight the phrase with your mouse click the link button, up will pop three choices, your hubs, amazon and other hubs. Click on one of Your Hubs and it automatically links that phrase to your hub.

      Shamelessly back link your hubs on other sites, people love their dogs and your advice is obviously filled with love, share it!

      Post every one of your Hubs on at least four social networks, FB, Pin It, Digg, StumbleUpon, etc., use the share button at the bottom of the page . . . . Add an RSS feed to every Hub you have published.

      I don't have a dog but have in the past and unlike most readers I read every hub I comment on start to finish however many people don't so grab their attention, with quotes from famous people, startling facts, and more pictures of the Star.

      Good informative article, thanks for sharing!

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