Posts tagged dog

Help Your Pet RELAX this 4th of July!

The 4th of July is almost here! 

Agnus the chihuahua sitting in an american flagWhile we’re sure our pets are just as patriotic as we are, they may not share our excitement for the local fireworks displays.

Pets can find fireworks terrifying. Fortunately we have a number of remedies that actually work well!

 

Starting out, it’s important to introduce our natural pet stress-relieving techniques a few days or even a week before they’re needed, to give your pet ample time to become comfortable with them. If your pet is afraid of the very thing meant to relax them, you won’t see good results. Plus, it seems like every neighborhood has that “one guy” who doesn’t wait until the actual 4th of July to celebrate with fireworks! So start your chosen treatment method before the fireworks actually begin. Once your dog or cat is stressed out, it can be difficult to calm them down. It’s important to remember that your pet is not only fearful for its’ own safety, but for yours as well! If you begin to worry about whether your pet will be stressed or anxious, it will only validate the fear and add to the anxiety.  It’s important to be calm during such times, as this will help your pet to relax and reduce the fear.

Flower Essences are a very effective tool for combating stress and anxiety because they function on an emotional level.

They’re remarkably simple, combining the energetic essence and effects of flowers in unique formulas.  We’ve found our pets are very “tuned in” to emotional energy, and they seem receptive to these formulas.  While they’re effective, they’re also very mild on the body and completely safe.  Flower Essences can be applied in a number of ways: dropped directly into your pet’s mouth, rubbed on their fur, added to their drinking water or even all of those methods at once!

Some of our most popular Flower Essences listed below are now 15% OFF:

Homeopathic Remedies can be effective, very mild and completely safe for your pets.

Homeopathic Remedies work by combining a number of ingredients in extremely small quantities that might seem like they would add to the stress; however these formulations in turn cause the body to react against the ingredients – which can produce a calming effect.  The typical daily dosage can be increased during times of stress (like during fireworks, or that wild party you have planned!).

Our most popular stress remedy, Only Natural Pet Stress & Anxiety Homeopathic Remedy requires 5-10 drops 3 times per day to treat general anxiety. During times of stress that dose can be increased to 5-10 drops every 15 min for the first hour, every 30 min for the second hour and then once again for the third hour (If your Fireworks show lasts that long, we’d appreciate an invite!).  Homeopathic Remedies should ideally be dropped directly into the mouth. However, if that is difficult they can be mixed with treats, food or water as well.

We offer several other homeopathic remedies for anxiety. One may be right for your pet!

Herbal Formulas are another great option, that tends to work over a longer period of time than homeopathic remedies or flower essences.

These formulas can keep your pet relaxed for an extended time with little to no interruption of the benefits!  Since the effects last a bit longer, herbal remedies are one way to reduce any sudden “spikes” of stress and create a sustained, relaxed feeling.  Herbal Remedies can be mixed with food, treats, water or given directly.

Other herbal remedies you’ll find on our website (Also now 15% OFF):

We have a few other solutions for relieving stress that don’t fit into one of the above categories as well.  Our Only Natural Pet Phero-Soothe is a simulated Pheromone spray that creates a feeling of safety and well-being in any environment.  Our pets have a powerful sense of smell, which helps make this product effective. The Thundershirt is a unique and creative product. It gently “hugs” your pet, which creates a sense of safety and security by making them feel less vulnerable. Both of these products can be combined with just about anything as well, so they’re a versatile choice that will complement any solution!

Treating anxiety, especially a rational anxiety like a fear of loud explosions, can take some trial and error.  We’ve found that combining two or more products is generally the most effective. So explore your options, find the right solution for your pet, and get ready to enjoy those 4th of July fireworks without stress for you or your pet!

All Stress and Anxiety Solutions at 15% Off

June 14 – June 26, 2013

Coupon Code: RELAX

Shop Now >

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Friends for Food Winner Announced

We want to thank everyone who participated in our Friends for Food promotion. Thanks to your involvement, we are going to donate over a ton of food to the Boulder Humane Society. 2,406 pounds to be exact! Our donation will occur over the course of the year and be primarily utilized as part of the Food Share Program developed by the Humane Society to help those that adopt pets gain access to natural pet food for their newly adopted friends. You can learn more about this program by visiting www.boulderhumane.org.

As part of this promotion, we also offered a $250 gift card prize to one lucky friend who Like us Facebook. We are happy to announce that Laura Boyajian is our winner! She will receive a gift card via email that which can redeemed at www.onlynaturalpet.com.

Congratulations and thank you all for being a part of this engaging and worthy cause!

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Employee Pet Profile – Sarah’s White German Shepherd, Ozzie!

For May our employee pet profile will look at Ozzie, the most handsome and healthy white German Shepherd!

Ozzie lives with Sarah in customer care at Only Natural pet Store. For those of you who have spoken to Sarah, you know she is amazingly knowledgeable about natural diets for dogs. Lucky Ozzie has been benefiting from Sarah’s care his whole life!

Tiny Ozzie, German Shepherd Puppy

photo by Sarah Wadleigh

Employee First Name : Sarah
Pet’s Name : Ozzie
Breed : White German Shepherd

Oz’s favorite food: Primal Pet Foods Raw Dog Food – duck
Favorite Treat: BonesGalore Lamb Puffs
Favorite Toy: Planet Dog Orbee-Tuff Ball

When our two dogs, Frith* and Tasha, were 12 years old, my husband decided he wanted another puppy. I had my doubts, as I thought they might feel annoyed by a new addition. What actually took place was just the opposite. Both dogs welcomed the new puppy and they become a very close-knit family. I think having Ozzie around helped keep our older dogs active and engaged.

We were living on two acres in the foothills of Boulder County at the time. All three dogs would run together, making a huge circle around the property, and when Ozzie couldn’t keep up with the big dogs, he would grab Frith’s tail as they swung around the garden fence, Ozzie banking out to the side as he hung on. I could hardly believe that Frith would put up with it! Once Oz grew, he could outrun both older dogs with ease, of course.

Ozzie and Tasha with dog toy

photo by Sarah Wadleigh

My favorite story about Ozzie, though – When Tasha turned 14, and then 15, her eyesight began to dim. She still played squeaky ball every day in our yard. But when the squeaky would roll into the shade, she would not be able to track its location. That’s when Ozzie would show her where it went by jumping on the toy with his front paws. He and Tasha had a very special relationship based on adoration and leadership.

Frith passed away at age 15, and six months later, Tasha made the transition at age 16. It was a very sad time for all of us. Ozzie and I would often lie on Tasha’s blanket together, sharing our sadness. He’s a wonderful, very sensitive dog who we feel privileged to have in our lives.

Ozzie is now eight, almost 9 years old. Very active and robust, he is on an all-raw diet. He gets a rotation of duck, venison, chicken and beef from Primal, Stella & Chewey’s, Nature’s Variety and Raw Advantage. The supplements he gets each day: Only Natural Pet Super Daily Greens, Only Natural Pet Get Up & Go, Only Natural Pet Lubri-Herb Herbal Formula, In Clover OptaGest Digestive Aid, Halo VitaGlo Xtra-C Vitamin C Powder, and Ultra Oil Skin & Coat Supplement with Hempseed Oil.

*Editor’s note : As a music industry guy, I can’t help but point out
that Frith was named after the legendary musician Fred Frith. -DG

White German Shepherd and Corgi

photo by Sarah Wadleigh

Ozzie the White German Shepherd with stick

Photo by Sarah Wadleigh

Ozzie and Frith playing tug-o-war with their dog toy

photoby Sarah Wadleigh

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How to Solve Canine “Dis”-Obedience

The ways in which a dog can get into trouble seem limitless. These unwanted behaviors cause enormous frustration to the human members of the family. The only thing there seems to be more of is advice—from neighbors, the pet store clerk, books, and of course, online. Yet simply understanding the way learning and behavior occur will go a long way toward solving just about any behavior problem that comes up.

The most basic principle is why a behavior occurs, and there are really only two possibilities: negative and positive reinforcement. Every organism, from single-celled amoebas on up, will move away from an unpleasant stimulus and toward a pleasurable stimulus. No matter how complex the behavior is, fundamentally the motivation is one of these two desires: avoid pain, or increase pleasure.

Much of the popular wisdom about dog training emphasizes the first principle, negative reinforcement, using its most extreme tool: punishment. But for punishment to be effective, it must meet three criteria. It must be:

  • Immediate (within 2 seconds of the behavior)
  • Consistent (every single time the animal performs the behavior, whether you’re watching or not)
  • Effective (stop the behavior without causing additional problems)

The problem is that these criteria are nearly impossible to achieve. For instance, a popular dog behavior site give this advice: “If you decide that some action requires correction, *always* give a correction when you see that action. For example, if you decide that your dog is not allowed on the sofa, then *always* correct it when you see it on the sofa.” But what if you’re in another room, or sleeping, or at work? If you’re not there, the dog can get on the sofa with no consequences. So what do you think the dog will learn if you correct him every time you see him on the sofa? He will learn not to get on the sofa when you are in the room.

Other techniques follow the “alpha dog” theory: you must be dominant. To demonstrate your position, recommendations include staring the dog down, grabbing her by the scruff or neck and shaking her, tapping under the chin, and most famously the “alpha roll,” in which you force the dog down onto her back with her feet in the air, exposing her belly. The problem with these techniques, which are supposedly based on natural behavior in wolf packs, is that they bear no resemblance to wolf behavior in the wild. You will never see an alpha wolf roll a subordinate; rather, this position is naturally and voluntarily assumed by the subordinate wolf as a sign of submission. That’s a very big difference! These techniques will terrify a submissive dog, but worse, they will make a naturally assertive dog more aggressive. Staring an aggressive dog in the eyes will be interpreted by that dog as a direct challenge. These physical techniques, often demonstrated by “Dog Whisperer” Cesar Millan, have the potential to result in injury to the amateur trainner: you.

“Positive” dog training, which is gaining in popularity, operates from a completely different point of view. This technique recognizes that the reason the dog is doing a behavior is because it gets some kind of reward for it. For example, a dog that gets into the garbage gets a powerful and immediate reward in the form of food. The dog who sleeps on the sofa does so because it’s comfortable. The dog who jumps up on every visitor is getting attention—lots of attention—for doing so.

The best way to correct a behavior is to remove the original reward and replace it with something else that is equally or more desirable to the dog, but also acceptable to the guardian. This philosophy respects and works with, not against, the dog’s needs and nature. Distraction, using a toy or treat, will often successfully interrupt the behavior. Cable TV behaviorist Victoria Stillwell exemplifies this philosophy.

Attention-seeking behavior such as jumping up, barking, play-biting, and incessant nuzzling, generally accomplish their goals. That is, the dog gets attention for it: you’re looking at him, vocalizing (talking or yelling), and perhaps even handling him (pushing, tapping, nudging). As unpleasant as we might think they are, these are actually all strong rewards. To change the behavior, we have to change the reward system. There are two basic steps:

Negative Reinforcer: Withdrawal of Attention. Don’t look at your dog, talk to him, or give him the slightest indication you know he exists. If the dog is jumping up on you (or a visitor), turn away. Most dogs will follow your movement and keep jumping. Keep turning away. Fold your arms, close your eyes, and don’t speak. Do not give him any attention whatsoever. It may take a minute or two, but when the dog fails to get the attention-reward he’s seeking, he’ll lose interest and stop jumping, perhaps to pace or even sit. That’s your cue for the next step…

Positive Reinforcer: Proper Reward. Timing is everything. As soon as the dog stops the unwanted behavior, and is quiet, reward him. Enthusiastic, yet low-key, verbal praise should accompany any reward, such as treats, petting, or a favorite toy, but may suffice on its own. This tells the the dog that the best way to get your attention is to sit or stand quietly.

Judicious use of training treats can do wonders, even for entrenched behaviors. All-meat treats are the healthiest for your dog, but any treat your dog loves will work. If it’s a large treat (jerky slice, for instance), break or tear it in to small pieces for the purpose. Treats contain calories, and may put on the pounds if used excessively. At first, give a treat for every successful behavior. After the dog is behaving reliably, give a treat every other time, and gradually extend and vary the interval. Variable reinforcement is the principle behind slot machines; and can create serious addiction. But in this case, you want your dog to be addicted to good behavior!

Recently, a noted behaviorist commented that “good dogs” are, in a way, losers. They are quiet and obedient, and for that, they are largely ignored. So let’s not forget to tell our dogs how wonderful they are when they are just being dogs…sitting, snoozing, walking on a leash without pulling…these are the times when we need to give them little rewards, so those nice behaviors are rewarded.

Of course, it is important to respect the dog’s other needs: exercise, social engagement, healthy diet. A dog that sits alone in the house all day may justifiably be rambunctious in the few hours the family is home and awake. Fetching games (use a Chuck-It if you don’t have a hall-of-fame throwing arm!), appropriate walks, doggie day care, or a trip to the dog park, will help work off that accumulated energy, and help keep the dog on a more even keel.

Got questions? Post them in our Community disussion boards!

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Keeping the Holidays Safe for Your Pets

The holidays can be a stressful and even dangerous time for our pets. The routines are upset, visitors abound, and tempting smells are coming from the kitchen! Keeping pets safe is sometimes tricky at this time of year, so here are a few tips and tricks to help everyone enjoy the holidays fearlessly!

The Christmas tree is the first item of great interest on your pet’s Santa list. Many cats find it irresistibly tempting to climb. So, make sure your tree is in a sturdy, tip-resistant stand. (A classic Christmas card shows a cat and two women gazing at a decorated tree that’s tightly guy-wired to the walls and ceiling; one woman says to the other, “No chance of the cat knocking over the tree this year!”)

Most tree stands have a water container—this is another hazard. Aromatic compounds from the tree itself and the chemicals often added to the water are highly toxic to pets; make sure the container is wrapped and taped or otherwise made inaccessible to your feline and canine friends, who will often try to drink from this novel water source.

Christmas lights and wires on the tree and around the home are an invitation to chew for both cats and dogs. For wires that are easily accessible to curious teeth (especially young animals), run them through inexpensive foam pipe insulators that you can find at any home improvement or hardware store.

Metal tinsel is rare these days, but mylar tinsel and garlands can also pose a swallowing hazard. They can cause serious damage to a pet’s intestines. Consider a beaded garland instead. Also, when unwrapping presents, make sure all ribbon and string is safely disposed.

Keep glass ornaments to a minimum if you must use them at all, and place them higher on the tree, with unbreakable ornaments lower down. A broken glass ornament is a minefield for tender paws. If a pet eats all or part of a glass ornament, immediately feed cotton balls or bread soaked in milk or cream; the soft mushy texture will gather up all the sharp pieces and safely “escort” and expel them.

Parties and visitors increase the risk of a cat slipping out through an open door; make sure all your pets are microchipped and wearing collars and ID tags.

You may want to provide a “base camp” for your pet that includes food, water, bed—and for cats, a scratching post, and litter box—in a room that’s less likely to be disturbed. A spritz or two of a pet pheromone spray (Only Natural Pet Phero-Soothe) or flower essences (Only Natural Pet Just Relax Flower Essences, or Spirit Essences Holiday Stress Stopper) will keep the atmosphere calm. But no decorations in that room, please, especially lit candles! (Of course, unattended burning candles are a serious hazard at any time of year!)

Take it easy on the treats. Too many fatty treats like turkey skin or ham can cause serious tummy upset; in dogs, these can trigger life-threatening pancreatitis. Ask dinner guests to refrain from feeding “under the table”—or even better, keep pets safely confined during the festivities. Chocolate, of course, is toxic to both dogs and cats.

For extra comfort, consider adding essences, herbs (like Animals’ Apawthecary Tranquility Blend, or Only Natural Pet Chinese Herbal Blends Calm), or homeopathics (Newton Homeopathics Nervousness & Fear) to meals during the most hectic times.

A little extra care and attention will make this holiday season a safe and happy one for the whole family!

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Fur Loss – What’s the Problem?

Is your pet “going bald?” There are many reasons why a pet might lose fur, but in most cases, it’s because the of overgrooming: chewing the hair and breaking it off, or pulling it out completely. Those 12 tiny incisor teeth between the canines (fangs) are designed for grooming, and under normal circumstances, they’re used to “comb” through the hair to remove debris, mats, and parasites.

Hair loss from any cause is called “alopecia” (“aloe-pee’-sha”).  Sometimes you’ll actually catch your pet in the act of chewing, or notice that he’s scratching or grooming more than usual, but more often you’ll glance down and suddenly notice a bare patch where the fur used to be. Areas where alopecia can develop without you noticing are the tummy, tail base, and front legs. Dogs are especially prone to work intensively at an itchy area and develop raw, open sores called “hot spots.” When cats do this, they cause even worse damage because of their rough, barbed tongues.

Parasites

The first essential step is a trip to the veterinarian’s to diagnose the cause of the problem. Far and away the most common reason for both dogs and cats to pull out their hair, especially around the base of the tail, is flea-bite allergy. It only takes a single flea bite to produce an intense and prolonged reaction. Your vet can prescribe an effective and safe flea preventive and help you get rid of fleas and eggs in and around the house, or you can use more natural methods. Once the fleas are gone, the skin will heal up on its own, or you can use homeopathy to hasten the process.

Another parasite that may be far more common than many vets suspect is mites. There are several species of mites that produce a condition called “mange.” Sarcoptes mites (scabies) cause unrelenting, severe itching. They are most often found on the belly, but can wander anywhere. Scabies mites prefer warm, moist areas. Cheyletiella (“walking dandruff mite”) and Demodex may or may not be itchy, but if the infestation grows out of control, they can cause scratching and hair loss. Demodex is a normal parasite of humans and animals (we have them in the hair follicles of our eyebrows–eew!), but if the immune system is weak, it can explode into a nasty infestation. Sometimes cat ear mites will get into the skin, particularly around the head and neck. All of these can cause animals to lick, scratch, rub, and chew to try to relieve the itching. Strengthening the immune system is the most basic support for a parasitized pet.

Most mites have one thing in common—they are easily transmitted, and they are not picky about where they set up housekeeping. In a household with scabies, multiple animals and people are likely to be infected. Your vet will do a skin scraping and put it under the microscope to check for mites, which are very tiny and hardly visible to the eye. However, scabies mites are very hard to find. It’s been estimated that only 20-30% of pets with scabies are ever definitively diagnosed, even by multiple skin scrapings. If there are two or more itchy individuals (of any species!) in the household, treatment for mites may be indicated.

Ringworm (which is actually a fungus) is also frequently implicated in cases of hair loss, especially around the face, feet and ears. It is more common in cats than dogs, and even more so in kittens–but all animals, including humans, can get them. The hair disappears in small patches, and the skin turns dry, gray (or red, especially in people), and flaky. The time between initial contact and the appearance of lesions varies from one to three weeks. Ringworm is extremely contagious! While it doesn’t seem to bother the animals much, in people it can be extremely itchy! Treating ringworm can be difficult and time-consuming.There are a number of effective topical creams that can be used if the lesions are small and localized, but a pet with a major infection may need to be shaved and bathed in a special shampoo for a month or more. Alternatively, there are oral medications or herbs that must be given consistently, usually for several weeks. They have serious side effects, so be sure to discuss the options thoroughly with your vet. Homeopathic treatment can be very helpful.

Internal Disease

Along with parasites, the veterinarian will also consider other potential causes of hair loss. Certain patterns, such as symmetrical hair loss along the sides, may point to an endocrine disorder; i.e., a problem with one of the hormone-secreting glands, such as the thyroid or adrenals.

Localized pain may also cause the excessive licking. A brewing abscess is painful, and will inspire a lot of licking before it opens and drains. Hair loss over joints may indicate arthritis pain. I once examined a cat who had suddenly started licking at one particular spot on her right side. As I mulled over which organs were in that part of the abdomen, I became suspicious, and ransome tests. It turned out she had acute pancreatitis, which we successfully treated before it became a full-blown, life-threatening problem.

Allergies

Contact allergies, while rare, are possible. A new carpet, cedar bed, or different detergent used to launder the pet’s bedding can cause a local allergic reaction that causes the pet to lick at the itchy area. Hair loss and rash will occur in the areas where the pet most frequently comes into contact with the material, such as feet and tummy.

Once parasites and medical problems have been ruled out, there are still two major players to consider. The first is diet. Food intolerances or allergies may show up first in the skin, causing tiny red crusty sores that spread or coalesce as the pet rubs or scratches at them. Secondary bacterial infections are common once the skin becomes irritated. Food allergies are much more common in cats than in dogs. Lesions around the face, feet, and ears are typically seen with food allergies. Allergies to inhaled substances, such as dust mites or pollen, may produce identical signs. A diet trial with low-allergen food, skin or blood test (good diagnostics for dogs but notoriously inaccurate in cats), or trial treatment may be used to assess allergies. Treatment consists of improved diet including added essential fatty acids and other natural products.

“Fat Deficiency”

The skin and coat are also the first to suffer when the diet is inadequate in certain nutrients. Pets on all-dry, “light,” or “low-fat” diets may develop dry, flaky skin, and the coat may be dull or greasy feeling. The skin may be irritated and the coat may become thin because hair is falling out. Or there may be plenty of fat in the diet, but not the right kind of fat.

Supplementation with essential fatty acids and/or Vitamin E may provide a great deal of relief. Omega 3 fatty acids, in particular, found in fish oil and cod liver oil will help calm underlying inflammation, and condition the skin and fur. There are a number of good products for animals, such as Nordic Naturals Pet Omega 3 or Cod Liver Oil.

Many cat lovers have also found that homemade and raw diets, which eliminate the colorings, preservatives and other additives found in commercial cat foods, has done the trick. Simply getting rid of the dry food in favor of any wet food, such as canned, is the ticket in many cases.

It’s All in the Head?

Some herbs have mild sedating or calming effects. There are combinations made especially for animals. These would be appropriate to use if you know what the stressor is, and can dose appropriately whenever the stress will occur. For instance, if your pet gets upset when he’s left alone, you would give him the herbs right before you leave for work or school.

Other Treatments

Hherbs can help soothe and heal the skin.

Homeopathy can also be very beneficial in treating alopecia related to itching.

One of the best and simplest modalities for treating stress on the pyschological level is flower essence therapy.

Alopecia is a  sign that something’s wrong, and it’s often uncomfortable for the pet. While it’s not always easy to find out why your pet is pulling out her hair, it’s very important to get to the bottom of it, and to treat it appropriately.

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The Truth About Heartworms

Veterinarians and pharmaceutical companies have teamed up in a marketing campaign to frighten pet guardians into giving year-round heartworm preventatives to both dogs and cats. They say they’re doing this to improve protection for individual pets, but the facts say they have other motives.

Except for a the warmest parts of the U.S., heartworms are a completely seasonal problem. There is no reason to give heartworm medicine to most pets year-round (except to make money for those who make and sell it!).

Heartworms are transmitted by mosquitoes. Hearworm larvae, called microfilaria, live in the blood and are sucked up by the bug. Once inside the mosquito, they must further develop before they can infect another dog. For that to occur, outside temperatures must remain above 57 degrees F, day and night, for a certain period of time. The warmer the temperature, the faster the larvae will mature. If the temperature drops below critical level, larval development will stop; but the larvae don’t die—development will re-start at the same point when the weather warms back up. Larvae reach their infective stage in 8 to 30 days (the latter being the entire lifespan of the average mosquito).

In many areas of the country (northern and mountain states, for instance), such warm temperatures simply don’t exist for most of the year, and sustained warm temperatures don’t occur until at least June. In fact, only in Florida and south Texas is year-round heartworm transmission possible. Within 150 miles of the Gulf Coast, heartworm risk exists 9 months out of the year. In the rest of the country, heartworm transmission is possible between 3 and 7 months out of the year. Hawaii and Alaska have each had a few cases of canine heartworm, but the incidence  in those states is very low.

It should be obvious that during seasons where there are no mosquitoes, there is no risk of heartworm. Evidently that little fact escaped the attention of the veterinarian who prescribed heartworm protection—in December–for a puppy living high in the Colorado mountains. At that altitude, temperatures are never warm enough for heartworms!

When an infected mosquito bites a dog or cat, the microfilaria are deposited on the skin, where they crawl into the bite wound and enter the bloodstream. Inside the body, they grow and progress through other larval forms. In dogs, the heartworm’s natural host, larvae migrate to the heart and eventually develop into adult worms, reproduce, fill the blood with microfilaria, and pass it on to the next mosquito.

In cats, full-grown worms can develop, but not reproduce. Adult heartworms are over a foot long, and it doesn’t take but 1 or 2 to fill up a cat’s tiny heart and cause serious problems. In 80% of the time, the cat’s immune system kills the larvae at an earlier stage, and clears the infection. However, microfilaria can cause significant inflammation in the lungs, even in cats who never show any signs of infection. Cases of heartworm have been diagnosed in cats living entirely indoors.

Heartworm preventative drugs do not kill adult heartworms, but they do kill microfilaria up to a certain stage of development. Currently it is believed that larvae under 6 weeks old are affected. This means that in order to prevent heartworms from reaching adulthood, the preventative can be given up to 6 weeks after the mosquito bite and still work. The recommendation is to give the drugs every 30 days, purportedly because once-a-month dosing is easier for most people to remember (and, coincidentally, it also sells more drugs). Preventatives should be given starting 4-6 weeks after the earliest possible infection date and continue 4-6 weeks after the last possible infection date. In most states, protection should be continued through November or December. In southern Texas and Florida, year-round preventatives may be needed. Local conditions may vary from year to year.

The most common preventative drugs for heartworm are ivermectin (Heargard®) and selamectin (Revolution®). While these drugs are generally safe and effective, there are always exceptions. Toxicity associated with ivermectin include depression, ataxia (balance problems or unsteady walk), and blindness, but these are uncommon at the doses used in heartworm preventatives. Selamectin is also used to treat ear mites and some worms; adverse reactions include hair loss at the site of application, diarrhea, vomiting, muscle tremors, anorexia, lethargy, salivation, rapid breathing, and contact allergy.

Update 7/15/2010: The Companion Animal Parasite Council (CAPC) recently reported that mounting evidence suggests that preventatives may be susceptible to a very serious problem: resistance. This is similar to the situation with antibiotics, where massive and unnecessary over-use has caused many bacteria to develop resistance to one or more drugs, creating super-infections, and making many antibiotics useless. The CAPC report states: “There is a growing body of anecdotal reports and experimental evidence that currently available heartworm preventives (macrocyclic lactones) may not be completely efficacious in preventing heartworm infection in dogs. Reports of resistance for dogs in the region [south-central U.S.] have resulted in confusion about how best to prevent infection in veterinary patients.” If ivermectin and related drugs lose their effectiveness, that will be trouble indeed, since these drugs are also used in the treatment of heartworm infections.

Only Natural Pet HW Protect Herbal Formula is a natural product intended for use as a preventative to be used during mosquito season as part of a comprehensive heartworm control program. The formula was designed with two objectives, using herbs that work together to reduce the likelihood of mosquito bites to lower your pet’s risk of becoming infected, and to help eliminate existing larvae-stage parasites in the bloodstream. This tincture was developed to help prevent heartworm infestation using extracts of herbs well known for their mosquito repelling properties, and others well known for their anti-parasitic properties.

References:

Knight DH, Lok JB. Seasonality of heartworm infections and implications for chemoprophylaxis. Clin Tech Sm An Pract. 1998 May;13(2):77-82.

Atkins C. Feline heartworm disease. NAVC Clinician’s Brief. http://www.cliniciansbrief.com/webrief/25.php. Accessed 5/20/2009.

Companion Animal Parasite Council, http://www.capcvet.org/downloads/Heartworm%20Preventive%20Efficacy.pdf. Accessed 7/15/2010.

Pena F, Rosenthal M. Expert shares new protocol to manage heartworm signs. Veterinary Forum. 2008 Aug 1:17-18.  http://www.vetlearn.com/ArticleDetails/tabid/106/ArticleID/3289/Default.aspx. Accessed 7/15/2010.

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