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Your dog’s, best defence against insects and parasites is a STRONG IMMUNE SYSTEM supported by APPROPRIATE DIET.
Why The Life Span of Our Dogs and Cats Has Declined Rather Than Increased Since the 1950’s
 Statistics recorded by veterinary organizations from the 1950's up to present day are very telling... 
  • The life-span of a companion dog in North America is now half of what it was in the 1950's;
  • In the 1950's the average life-span of a golden retriever was 15 to 16 years, today the average is in the range of 8 to 12 years.
  • In 2005, 50% of older dogs died from cancer, and the number is on the rise.
This increase in cancer has a direct correlation to:
All of these substances contributes to the creation of an ever-present toxic load on the dog’s system;
  • On a daily basis a dog may ingest, have surface contact with or inhale many toxins;
  • Over time toxins build-up in a dog’s system - in order to process and eliminate the toxins the dog’s liver and kidney must work over-time;
  • The toxins also:
    •  Interfere with the endocrine system;
    • Destroy the natural healthy balance of the blood PH level, etc.
  • And as the load becomes too large to process:
    • The toxins continue to build, and; 
    • The body’s organs begin to wear out;
    • The immune system becomes compromised;
  • This process of burden and wear occurs quicker in most dogs than in a human as an adult dog is typically smaller than an adult human - their organs are smaller too!
As a dog’s system becomes burdened the dog may develop chronic health issues, for example skin and coat problems, ear infections, eye and nose problems (runny eyes/nose), intermittent diarrhea or vomiting. Eventually when the dogs system is no longer able to process/remove any of the toxic load more serious health issues develop (for example fatty tumours);
In addition to all of the above: 
  • Pharmaceutical companies aggressively market veterinarians to over-inoculate on an annual basis and add new and unnecessary inoculations. 
  • Inoculations contain toxins and immune system suppressors. 
  • While the immune system is suppressed the dog/cat is at an increased risk of acquiring disease, illness and parasites.
This series of factors – created by mankind, and foisted upon our companion animals - produced a great and irresistible opportunity for both pesticide and pharmaceutical companies to make huge profits at the expense of our animal's health.

Overuse, Parasite Acquired Immunity and Loss of Efficacy 
Another very important aspect to consider - the synthetic compounds commonly used in the off-the-shelf flea collars, sprays and drops have a tendency to lose their efficacy after continued use - the fleas develop immunity to the chemical compounds. So, your dog can end up exposed to these harsh chemicals without any benefit!

Typical Pesticides Used, Side Effects and Cautions

The following chart provides some examples of the synthetic compounds typically found in off-the-shelf and veterinarian prescribed parasite preventative medications - topical and oral.
Use great caution when applying any of these substances topically on dogs and cats with broken or irritated skin. 
You will notice in the cautions column of the table below that many of these substances/products should not be used on sick, aging, underweight dogs orcats, dogs on medication etc. The main reason is that all of these substances listed in the table below do compromise your dog’s and cat's immune system. For a dog or cat that already has a depressed immune system the additional toxic load of these pesticides can be disastrous in the short and long term.

Used In 
Active Ingredient Target Side Effects Cautions
Proventic Amitraz Ticks, Mange, Scabies Can cause high blood sugar (hypoglycemia), low blood pressure (hypotension), low body temperature (hypothermia), sedation 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
Frontline 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? Do not use on dogs under 8 weeks of age, sick, medicated or aged dogs
Vectra Dinotefuran Fleas Can cause immune system toxicity. Do not use on debilitated, aged, medicated, pregnant or nursing dogs, or dogs known to be sensitive to pesticides, aged, sick, pregnant or nursing
Program, Preventic IGRs 
(methoprene, fenoxycarb, pyriproxyfen)
(lufenuron, diflubenzuron)
Fleas Can cause vomitting, diarrhea Read the label - age of puppies products can be used on varies, do not use on aged, sick , medicated, pregnant or nursing dogs
Advantage II Imidacloprid   Can cause drooling, skin irritation and may cause miscarriages and skeletal deformities. Do not use on dogs that are: aged, nursing or pregnant, sick or under 7 weeks of age.
Heartguard, Ivermectin Heartworm, Neurotoxicity - depression of the nervous system followed by ataxia Dogs with defects in P-glycoprotien can suffer severe poisoning 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
Interceptor, Sentinel Milbemycin oxime Roundworms, Hookworms Can cause stupor, tremor and ataxia 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
Capstar Nitenpyram Blow Flies, Fleas, Maggots Can causeLethargy/depression, vomiting, itching, decreased appetite, diarrhea, hyperactivity, lack of coordination, trembling, seizures, panting, allergic reactions including hives, vocalization, salivation, fever, and nervousness Should not be used on pregnant and nursing dogs
Various Products 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
Bio Spot Flea and Tick Spray or Spot on Flea Control Pyrethrins

Fleas, Ticks, Lice, Mites, Mosquito
Can cause tremors, depression, convulsions, death
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
K9 advantix II Pyrethroids

Fleas and Ticks
Can cause drooling, tremors, vomiting, seizures
Do not use on dogs that are: aged, nursing or pregnant, sick or under 7 weeks of age.
Various Products Praziquantel Tapeworms
Can cause drooling, sudden diarrhea, loss of appetite, lethargy, staggering, vomiting
Revolution Selemectin Heartworm, Fleas, Mange, Mites, Ticks, Parasites
Can cause hair loss
One of my dogs and one of my cats had severe/chronic hair loss resulting from use of Revolution.
Do not use on puppies under 6 weeks of age
Spinosad Fleas
Can cause loss of appetite, diarrhea, vomiting
Do not use on pregnant dogs or dogs with epilepsy, dogs under 14 weeks of age

There are many natural, herbal, homeopathic treatments and remedies that you can use in lieu of the chemical-based options. When used in tandem with a truly good diet the need for chemical-based remedies and treatments is greatly reduced…
  • A healthy dog is much less attractive to parasites and insects;
  • A healthy dog’s natural system is much better equipped to fight-off any parasites.
Do Your Own Research and If Your Risk Assessment Says You Must Use Chemical-Based Preventatives Take Appropriate Action to Offset The Toxins.
For  fleas, ticks, worms etc. you should take the same approach – if risk assessment indicates you have no choice but to go with chemical-based rather than natural interventions, off-set the damaging effects of the toxic chemicals in the preventative by:
Alternate Preventatives and Treatments - Natural, Herbal, Homeopathic
The best approach is a holistic approach…
Step One - Boost Your Dog’s, Immune System and Clear out Toxins
This helps your dog, cat naturally fend-off parasites;
Step Two - Make your Dog’s, Skin and Blood Less Tasty To Insects and Parasites
Organic Apple Cider Vinegar – benefits and dosage; will be posting soon
Fresh Garlic - benefits, preparation and dosage; will be posting soon
Fresh Lemon - benefits, preparation and dosage. Will be posting soon
Step Three - Use all Natural Products for Prevention and Treatment
  • Lemon – A Safe, Natural Mosquito Repellent for Dogs –
  •  DIY Natural, Herbal, Homeopathic Flea, Tick, Mosquito Spot-On and Collar Drops for Dogs and Cats 
  • DIY Natural, Herbal, Homeopathic Flea, Tick, Mosquito Repellent Sprays, Rubs, Dips for Dogs.  

    Flea, Tick, Heartworm, Parasite Prevention for Dogs, Cats – What You Should Know Before Putting Your Dog, Cat on Chemical, Pesticide-Based Preventatives and Treatments


    In this article:
    • Active Ingredients in Veterinarian Prescribed or Pet-Store Insect, Parasite Preventatives and Treatments;
    • Why Would a Veterinarian Prescribe Something That was Not Good For Your Dog, Cat;
    • What the EPA is Saying About Theses Products;
    • Your Dog’s, Cat’s Best Defence;
    • Why The Life Span of Our Dogs and Cats Has Declined Rather Than Increased Since the 1950’s;
    • Overuse, Parasite Acquired Immunity and Loss of Efficacy;
    • Typical Pesticides Used, Side Effects and Cautions;
    • Do Your Own Research and If Your Risk Assessment Says You Must Use Chemical-Based Preventatives Take Appropriate Action to Offset The Toxins
    • DIY Alternate Preventatives and Treatments - Natural, Herbal, Homeopathic

    Important questions to consider….
    • Should you use conventional chemical-based oral and/or topical preventatives and treatments obtained from your veterinarian or pet store, or;
    • Should you adopt a holistic approach?
    • If you do choose to use chemical-based preventatives should you be doing something to offset- the harm done to your dog’s, cat's system by the chemicals?
    • And if so, what can you do?
    The option you choose can affect your companion animal’s health in many ways
    Before you decide to put your dog or cat on any type of commercially manufactured flea, tick heartworm, mange or other parasite prevention there are some things you should consider...
    Active Ingredients in Veterinarian Prescribed or Pet-Store Insect, Parasite Preventatives and Treatments
    The active ingredients in chemical-based preventatives and treatments are strong pesticides.  While these products are marketed and sold to keep your dog, cat free of parasites (i.e. heartworm, fleas, ticks and works) and related diseases (i.e. lime disease from ticks, heartworm from mosquito) the active ingredients in these products can do more harm than good..
    Conventional commercially manufactured parasite/insect preventatives - off-the-shelf or veterinarian-prescribed, include a warning not to touch the product with your bare hands and/or to wash your hands/skin immediately after contact.
    If you take a second to consider the warning it should trouble you that the substance that is intended to remain on your dog’s, cat's skin/fur or be orally ingested by your dog/cat is not safe for you to touch. Unfortunately the majority of commercially produced products (oral and topical preventatives) - designed to protect your dog from fleas, ticks, heartworm, worms and other parasites, contain powerful chemical-based pesticides and other toxic / carcinogenic ingredients. Sure these chemicals kill parasites, but the problem is they also put your dog’s and cat's health at grave risk.
    Even if the remedy is not ingested but instead applied topically, the toxins present in the product are still entering your dog’s body. Toxic substances pass through the skin and into the bloodstream, so at best you are increasing your dog’s toxic load, endangering their immune system and at worst you could be triggering severe health issues. 

    Pet stores and veterinarians (modern veterinarian medicine as opposed toholistic veterinarian medicine) sell many products to help control fleas, ticks, worms. Any of these products that are chemical based pose an immediate and ongoing threat to the health of your companion animal. Not only are the chemical-based active ingredients in these products health threatening, but as well many of the other ingredients (i.e. artificial colours, foaming agents, suspension agents, etc. are known to cause respiratory problems, hair loss, skin irritation, tremors, vomiting, permanent nerve damage, liver failure, cancer and death.

    According to the American Veterinary Medical Association, 65% of adverse drug reactions and 48% of all reported deaths resulting from drug reactions are caused by heartworm preventatives.

    Examples of Spot-on Flea, Tick Preventatives

    • Topical Interventions:
      • Flea Collars;
      • Direct Spray-on Applications for Dogs and Cat;
      • Topically Applied Drops (also known as ‘spot on’);
      • Shampoo;
      • Household Carpet, Upholstery and Yard Sprays.
    • Ingested Interventions:
      • Pills, Tablets, Injections.