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Dogs are the definitive host for heartworms. Heartworms are caused when a mosquito carrying infective heartworm larvae bites a dog. The larvae then grow, develop and migrate in the body of a dog for a period of several months to become mature. These worms reside in the heart, lungs and the associated blood vessels. The number of heartworms infecting a dog can be very high ranging from one to approximately 250. Dogs with huge number of worms are prone to severe heart and lung diseases. These worms reside in the lower caudal pulmonary arteries and the higher number of heartworms results in their presence in the right chambers of the heart. In these infections, the initial symptoms are due to inflammatory processes occurring in and around the arteries of the lungs due to the presence of heartworms. Heartworm disease causes a combination of problems in the dog including dysfunction of the heart, lungs, liver and kidneys. These diseases have an acute onset and begin with rarely detectable signs like chronic infection or a combination of physiologic changes. Dogs with lesser number of adult worms may never show apparent signs of heartworm disease. However, the heart and lungs are the main organs affected by the heartworms with many clinical signs. Thus it is important that you to use heartworm preventatives for dogs to protect them from these deadly worms. There are many medications available in the market for the dogs. Some of them are:- 1) Revolution: - this is a safe and comes in monthly medication pack that is applied over the skin, at the back of the neck of dogs. It helps in preventing and controlling the fleas, heartworm, ear mites and parasites like roundworms and hookworms. It kills the adult fleas that result in the breakage of their whole life cycle. 2) HeartGard Plus: - is the most popular medication meant for the prevention of heartworms. It provides protection from deadly heartworm diseases. It is very effective in controlling worms that result in diseases in pets. This is a chewable and deliciously beef-flavored tablet that makes it easy to administer your dogs. 3) Trifexis: - it is a meat flavored chewable tablet. It prevents microscopic pests from attaching the skin. This medication starts working within 30 minutes from usage. It should be compulsorily prescribed from veterinarian. 4) Interceptor Spectrum: - it is chewable and contains elements that help in preventing heartworm infection, immature roundworm, adult roundworm, adult whipworm, adult tapeworm, and adult hookworm. It is approved by FDA and is the enhanced version of traditional Interceptor tablets. 5) Sentinel Spectrum: - it is chewable and is approved by FDA. It prevents heartworm disease, controls flea populations and intestinal worms in the dogs. Periodical treatment offers long term protection from flea infestations and other allergy dermatitis in Dogs. 6) Advantage Multi: - it is a long lasting medicine for Dogs and contains a blend of insecticide. It is used to prevent and treat heartworms, hookworms, flea infestations, roundworms and whipworms. These are some of the useful heartworm preventatives for dogs that prevent and treat the development of worms in the animals. You should give proper dosage of these medications to your pets in order to protect them from deadly diseases of heart and lungs.
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