How do you know if your dog really needs to be on a heartworm preventative? Should you just take your veterinarian's advice or should you double-check on the advice you may be receiving from your Veterinarian? If your dog needs to be on heartworm preventatives are there other things you need to do to ensure the safety of your dog while on the preventative? If you don't know the answers you can be putting your dog's health at risk despite the best of intentions.
In this article...
- Risk Assessment;
- Consequences and Side Effects;
- How to Offset the Risks and Use Natural Alternatives
1.0 The Risk Assessment
- Who is defining the area you reside in as a 'risk area' for heartworm
- What are they defining the risk as - low, medium, high?
- How is the risk level actually defined and estimated?
- What is the actual source of information on which the assessment is based?
- And who is funding the assessment?
What is The Real Risk Assessment?
First verify that your
area is truly high risk. If you are in the U.S., the locations that are truly high
risk are Florida, parts of Texas, Hawaii and some locations along the Gulf
Coast (i.e. New Orleans). Can you trust
the maps generated by the American Heartworm Society (AHS) – the answer is NO. Why? Because AHS is heavily
sponsored by 8 (eight) of the major pharmaceutical companies who produce pesticide-laden
heartworm preventatives. You can find-up-to-date
maps on the AHS site; however the data which the maps are based on is designed
to boost sales of heartworm products and is not reflective of actual reality.
It seems - at least in North America, that many conventional-practice veterinarians , even those located in very low risk areas for heartworm infection are actively and intensely pushing
pesticide-based heartworm medications on their clients.
Why?
Well primarily because the big pharmaceutical
companies (i.e. Pfizer) have aggressively and expertly marketed pesticide laden heartworm products
to veterinarians. The marketing campaigns base their 'facts' on skewed data, incomplete reporting (including side effects, testing results, comparisons and alternatives). Unfortunately the pharmaceutical companies’ objective is not
the health of your pet; it is instead their desire for profit.
Many of the veterinarians
pushing these products on their clients are truly not aware of the truth about
these products - the short and long-term deleterious side effects (immune
system suppression, organ failure, cancer, etc.). In addition very few conventional
veterinarians have much knowledge about diet/nutrition and alternate, natural preventatives. And
yes, of coarse veterinarians do make money off of the vending, and protocol around sales of heartworm prevention products.
Conditions Must Be Exact for A Dog to Be Infected with Heartworm
Ambient air temperature conditions must be perfect for the heartworm larvae to first survive in the mosquito, and then under the dog's skin during stages L-1 thru to L-4 of development.
During larvae development within the mosquito,
the ambient air temperature must remain above 57 degrees Fahrenheit - day and night for a minimum of two weeks. If at any time during this stage in the larva's life, the temperature drops
below 57 degrees F, development of the larvae is stopped and must start all over again if and when the temperature increases. The larvae must reach the L-3 development stage before it can infest a dog.
At stage L-3 of development heartworm larva are left in a tiny droplet of mosquito saliva which is deposited next to the mosquito bite location on the dogs skin.
Once again the ambient air temperature must be right, and the humidity content in the air must be sufficient to avoid evaporation of the saliva droplet. The larvae canot enter the dog's body without the saliva. To enter into a dog's body, the L-3 larva must swim through the droplet and thereby makes its way into the actual hole made by the mosquito bite. Once inside the dog the L-3 larva spends the next 2 weeks developing into an L-4 stage larva. At L-4 the larva is still living just under the dog's skin, were it will remain and continue to develop into L-5 over the next 3 to 4 months. At L-5 stage of development the larva then enters the dog's blood stream, where it migrates to the heart and pulmonary arteries. Five to seven months after entering the dog's body the larva will mate if both female and male larva is present. The mating of the larva results in the production of the heartworm (the microfilariae).
How Do Conventional Heart Worm Preventatives Work?
Heartworm preventatives don’t stop
your dog from being:
- Bitten by a misquoto;
- By being infected by heartworm.
Instead, pesticide-based heart worm preventatives poison and
subsequently kill the larvae once it (the larvae) is in your dog’s system. Blood
tests are recommended prior to your dog taking heartworm preventative because if
your dog is already infected with larvae,
ingesting the preventative will not kill the worms - a different treatment will be required if your dog is already infested.
Because of the growing immunity of the parasites to the currently used
active chemicals – if you want or need to put your dog on these drugs;
blood testing once a year may no longer be sufficient. To be effective Blood testing would need to be done twice a year.
The real key to preventing heart worm is to make your dog's skin and blood undesirable to a mosquito. A healthy dog's blood has a bitter taste to parasites, an unhealthy dog's blood has a sweet taste to parasites. This is where Organic Apple Cider Vinegar, Fresh Lemon, Garlic, etc. become very important attributes to a dog's diet - more on that further below.
2.0 Consequences and Side Effects of Use
In Broad Terms - Risk to The Canine Species
The overuse of pesticide-based heartworm
preventatives has resulted in an ever-increasing ineffectiveness of these mendicants
as the parasites have built-up an immunity to the chemicals. Meaning – just because
your dog is on a preventative is no longer an assurance that it cannot acquire
the heartworm parasite. The pharmaceuticals are in the process of developing a
new round of stronger pesticides to cope with the growing immunity of the
parasites. These stronger pesticides will eventually create a new immunity in
the parasites – a vicious circle which will see our dogs health further
impacted.
In Specific Terms - Risk to The Individual Dog
Pesticide-based heartworm preventatives contain very strong pesticides. According to the American Veterinary Medical Association...
- 65% of adverse drug reactions, and
- 48% of all reported deaths - resulting from drug interactions are casued by conventional pesticide-based heartworm preventatives.
As an example,the active ingredient in Heart Guard is Ivermectin. Ivermectin has many potential side-effects...
- Aggressive behaviour (sudden aggressive behaviour);
- Autoimmuine disorders;
- Depression;
- Diarrhea;
- Difficulty breathing;
- Dizziness;
- Fertility problems;
- Fever;
- Lethargy;
- Liver problems;
- Loss of appetite;
- Nose bleeds,
- Paralysis;
- Pneumonia;
- Thyroid problems;
- Tremors;
- Seizures;
- Skin eruptions;
- Sudden death;
- Vomiting;
- Weakness
The other active ingredients used by other chemical-based heartworm preventatives have many of the same or similar side effects. At the bottom of this article you can look at a comprehensive list of various parasite medications, side effects and cautions.
Have you ever stopped to think about why the labels on such products warn you to avoid contact with your skin and wash your hands directly after touching the product? It is because the active ingredients are powerful pesticides.
The active ingredients are toxic poisons which:
- Weaken your dog's immune system;
- Force your dog's liver and kidneys to work over-time to eliminate the toxin from his/her blood stream.
Taking steps to boost your dog's immune system is doubly important when your dog is on chemical-based heartworm preventatives.
Coyotes, foxes and wolves are a good example of how a species appropriate diet (meat, fat, some berries, grasses and herbs) protects healthy animals from infection. Some coyotes and foxes have been identified as having the capability to fight-off infestations of heartworm and/or remain a host to the worm, while keeping the infestation minor enough so that his/her life (the host fox or coyote) is not in mortal danger. This is a natural response by a healthy immune system.
So why are our domesticated dogs at such high risk? Domesticated dogs today:
- Are exposed to multiple times daily to toxins (ingested, inhaled, surface contact) - more on that further below) on a daily basis;
- As a result the dog carries a constant and heavy toxic load, weakening his/her immune system and making a hospitable environment for a mosquito and it's larvae.
- Fed highly processed food diets;
- Being over-vaccinated;
- Are constantly treated (and unnecessarily so) with immune system suppressive drugs such as antibiotics.
Whether you are in a Low, Medium
or High Risk Zone
Here is What You Can Do…
3.0 Off-Set the Risks and Use Natural Interventions
Your dog's first defense against parasites and disease is a strong immune system...
Don’t
Over-Inoculate Your Dogs
From rabies to leptospirosis ('lepto') and everything in-between conventional-practice veterinarians over-inoculate dogs (again lack of knowledge on their part and in other cases greed). Inoculations suppress your dog’s immune system, contain toxic ingredients, cause cancer, can cause neurological issues, cancer, etc. Humans do not need to be constantly inoculated and neither do canines.
Don’t
Put Your Dog’s On Antibiotics or Steroidal Treatments Unless it is Really
Necessary
I
do not put my dogs on unnecessary or repeated courses of antibiotics or steroidal
treatments (which suppress the immune system). Ten of the top ten reasons for bringing a dog to the veterinarian are diet related...here are examples of how to holistically treat and remedy a few of those top 10 items....
Avoid
and Reduce Your Dog's Exposure to Toxins and Carcinogens
Avoid exposure to harmful chemicals in their food and environment...
- Toxins in commercially manufactured Dog Food, including substances such as Ethoxyquin, GMO, Aflatxoins, corn, soy, wheat and other grains/cereal by products, etc.
- Toxic household cleaners;
- Toxins in pet shampoo;
- Toxins in pet toothpaste;
- Road Salt;
Instead use healthy, safe alternatives such as: - Safe shampoo, and safe, effective dental care interventions;
Use
Safe Non-Toxic Topical Alternatives to Repel Parasites and Insects
For
example Lemon, A Safe Natural Misquito Repellent;
Get
Your Dog on a Species Appropriate Diet
- Option one: raw diet;
- Option two - raw and cooked foods;
- If you do not want to feed your dog option one or two then find a no grain, no toxins, no carcinogens, no GMO, truly good quality dry dog food - and you will need to supplement with other items such as a good probiotic, omega-3 fatty acids...
- Fresh Foods;
- Garlic; (no SPCA garlic is not dangerous for dogs. Onions, Leeks, chives, shallots etc. are dangerous for dogs - not garlic);
- Herbs;
- Lemon;
- Omega 3-Fatty Acids;
- Organic Apple Cider Vinegar;
- Probiotics;
- Rooibos Tea;
- Turmeric.
Don’t
have your dog on chemical based flea, tick and/or other parasite mendicants during
the week that you give your dog the heartworm preventative. The combined toxic
load on your dog’s system becomes dangerous to organ and immune system function
– you would be putting your dog at risk of acquiring serious health issues.
Follow-up
the treatment with safe liver-detox agents, for example:
- Milk thistle,
- Finely chopped, fresh non-GMO beets;
- Fresh lemon;
- Fresh chopped, or minced garlic;
- Organic dark leafy greens with flax oil drizzled on top;
- Organic fresh or frozen mashed berries with flax oil drizzled on top.
For Those Who would Like to See More Detail
| Active Ingredient | Target | Side Effects | Used
In (examples) |
Cautions |
| Amitraz | Ticks, Mange, Scabies | Can cause high blood sugar (hypoglycemia), low blood pressure (hypotension), low body temperature (hypothermia), sedation | Proventic | Commonly used in mange dips and tick collars. Do not use on dogs under 12 weeks of age, do not use on aged, sick, medicated, pregnant or nursing dogs |
| Arylheterocycles (most common - Fipronil) | Fleas, Ticks | Can cause irritation - I was unable to find details on what was meant by ‘irritation’…i.e. skin irritation? | Frontline | Do not use on dogs under 8 weeks of age, sick, medicated or aged dogs |
| Dinotefuran | Fleas | Can cause immune system toxicity. | Vectra | Do not use on debilitated, aged, medicated, pregnant or nursing dogs, or dogs known to be sensitive to pesticides, aged, sick, pregnant or nursing |
| IGRs (methoprene, fenoxycarb, pyriproxyfen) IDIs (lufenuron, diflubenzuron) |
Fleas | Can cause vomitting, diarrhea | Program, Preventic | Read the label - age of puppies products can be used on varies, do not use on aged, sick , medicated, pregnant or nursing dogs |
| Imidacloprid | Can cause drooling, skin irritation and may cause miscarriages and skeletal deformities. | Advantage II | Do not use on dogs that are: aged, nursing or pregnant, sick or under 7 weeks of age. | |
| Ivermectin | Heartworm, | Neurotoxicity - depression of the nervous system followed by ataxia. Dogs with defects in P-glycoprotien can suffer severe poisoning | Heartgard, | Most Collies cannot tolerate this substance and should not be given meds that include Ivermectin. Do not use on dogs under 6 weeks of age, aged, sick, medicated or underweight |
| Milbemycin oxime | Roundworms, Hookworms | Can cause stupor, tremor and ataxia | Interceptor, Sentinel | Not to be used on Collies or other herding breeds. Often used in products that include Ivermectin. Check the label of the specific product for puppy age restriction. Do not use on breeding, pregnant dogs or dogs with epilepsy |
| Nitenpyram | Blow Flies, Fleas, Maggots | Can cause Lethargy/depression, vomiting, itching, decreased appetite, diarrhea, hyperactivity, lack of coordination, trembling, seizures, panting, allergic reactions including hives, vocalization, salivation, fever, and nervousness | Capstar | Should not be used on pregnant and nursing dogs |
| Pyrantel pamoate | Roundworms, Hookworms |
Can
cause facial swelling, hives, scratching, sudden diarrhea, vomiting, shock,
seizures, pale gums, cold limbs, or coma.
|
Usually used in combination with Ivermectin | |
| Pyrethrins |
Fleas, Ticks, Lice, Mites, Misquitoes |
Can
cause tremors, depression, convulsions, death
|
Bio Spot Flea and Tick Spray or Spot on Flea Control | Do not use on dogs that are aged, sick, medicated, pregnant or nursing. Do not use spray on puppies under 12 weeks of age, do not use oral tablets on dogs under 6 months of age |
| Pyrethroids |
Fleas and Ticks |
Can
cause drooling, tremors, vomiting, seizures
|
K9 advantix II | Do not use on dogs that are: aged, nursing or pregnant, sick or under 7 weeks of age. |
| Praziquantel | Tapeworms |
Can
cause drooling, sudden diarrhea, loss of appetite, lethargy, staggering, vomiting
|
||
| Selemectin | Heartworm, Fleas, Mange, Mites, Ticks, Parasites |
Can
cause hair loss, skin issues, and burns, permanent immune system damage, etc.
|
Revolution | Do not use on puppies under 6 weeks of age |
| Spinosad | Fleas |
Can
cause loss of appetite, diarrhea, vomiting
|
Comfortis | Do not use on pregnant dogs or dogs with epilepsy, dogs under 14 weeks of age |
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Article and graphics by Karen Rosenfeld
