Ivermectin for Dogs Dosage Chart

Ivermectin has been in use for over 40 years for the prevention of heartworm disease. However, like all medications, there are some concerns with its administration to your pet. This article will discuss what you need to know about ivermectin for dogs, including dosage and possible side effects.

Ivermectin (Ivomec®, Heartgard®) for dogs dosage chart

Ivermectin dosage for dogs by weight

The recommended dose of ivermectin for dogs is 2.72 mcg per pound of body weight, administered orally at monthly intervals.

Dog’s weight (lbs) Ivermectin dosage (chewable)
Up to 25 lbs 1 chewable of 68 mcg
26 to 50 lbs 1 chewable of 136 mcg
51 to 100 lbs 1 chewable of 272 mcg

What is Ivermectin used for dogs?

Ivermectin is commonly used as a heartworm preventive in dogs and to treat other internal parasites in large animals. It’s sold under the brand names Heartgard/Heartgard Plus, Iverhart/Iverhart Plus, Tri-Heart Plus.

Ivermectin is an effective treatment for both ascarids and hookworms in dogs. It is also used to prevent canine heartworm disease by eliminating the tissue stage of heartworm larvae before they can mature into adult worms.

Heartworm disease is caused by the transmission of heartworm larvae from the bite of infected mosquitoes. The larvae develop into adult worms in the dog’s bloodstream and are carried to other areas of the body, including the lungs and brain.

Ivermectin is a medication that should be given only to dogs who have tested negative for heartworm.

Ivermectin is safe if it’s used according to the instructions on the label. However, it’s important to note that there are no FDA-approved studies showing that Ivermectin is safe during pregnancy or while nursing a litter of puppies or kittens. Therefore, it’s best to discuss this issue with your veterinarian before giving your dog or cat Ivermectin.

Ivermectin should not be given to animals that are less than 6 weeks old because they are too young to tolerate the medicine. In addition, Ivermectin may interact with other medications that may increase the risk of adverse effects (e.g., ketoconazole, cyclosporin, itraconazole
and calcium channel blockers).

What are the side effects of Ivermectin for dogs?

Ivermectin can cause side effects such as ataxia, vomiting, diarrhea, depression, or mydriasis. If you notice any of these symptoms while your dog is taking ivermectin, contact your veterinarian for advice.

Even though it’s just an antiparasitic drug, it can have an effect on the brain and nervous system. These side effects are usually mild and short-lived, but they’re still worth mentioning here so you can know what to look out for.

At elevated doses, Ivermectin can cause serious adverse effects in sensitive dogs, including CNS depression, seizures, coma, and even death.

If you have questions about the safety of using ivermectin on your pet, talk with your veterinarian before administering it for heartworm prevention.

Ivermectin reviews from dog owners

“I have a 6-year-old Jack Russell Terrier that I adopted at 5 months old. He has been on Heartgard Plus for about 2 years now and it has been working wonders! I would definitely recommend this medication to anyone who has a pet that needs to be on it.”

“I have been using Iverhart Plus for my dog for the past 2 months. I am very happy with this product. I have tried many different products such as Frontline, Advantage, Revolution, and others but they did not work well. The only thing that worked was Heartgard Plus Chewables but it was expensive and it didn’t last long.”

“I have a 10-year-old female Yorkie. I have been using Ivermectin for about 4 years and she has had no adverse effects from it. She is on a low dose and seems to be doing just fine.”

“Ivermectin is a miracle drug. My little 2-year-old Yorkie was diagnosed with Demodex mange over the summer and we have been treating him with Ivermectin. He has no more mange or itching, and he’s so happy! Thank you so much for making this product available!”

Can ivermectin be given to dogs daily?

Daily use of ivermectin for 6 weeks to 5 months, at a dosage of 0.2 mg per pound of body weight, was found to be effective in the treatment of generalized demodicosis in dogs.

Can ivermectin work on fleas and ticks?

Ivermectin is not effective against fleas, ticks, flies, or flukes. It will only kill the parasites that it was prescribed for. If you want to use ivermectin for something else, you should ask your vet about it.

What are the signs of heartworms in dogs?

Dogs that have been infected with heartworms can show signs of mild to moderate disease, depending on how long they have been infected. These signs include:

  • Persistent cough
  • Resistance to exercise
  • Tiredness after moderate activity
  • Decreased appetite and weight loss

Heartworms are a serious threat to dogs. If left untreated, they can cause death. Heartworms are most common in southern parts of the United States, but they can be found anywhere in the country.

Heartworms cause damage to the heart and lungs, which leads to breathing problems and fluid accumulation in the abdomen. Heartworm disease is most common in dogs and cats that live in or near areas where mosquitoes live.

Heartworm tests are necessary on all dogs at least once a year by your veterinarian.

Conclusion of dosing dogs with Ivermectin

The safety of ivermectin for use in dogs is well established. The drug has been used safely for many years and is considered safe for human use as well. However, there are some precautions that you should take before administering ivermectin to your dog.

Ivermectin is not a cure-all and must be used alongside other preventives or treatments to ensure that all your dog’s internal and external parasites are killed off properly.

The most common side effects reported with ivermectin are vomiting, diarrhea, and depression. In rare cases, serious adverse reactions have been reported in sensitive dogs.

Ivermectin is safe for use in most dogs, but some dogs may have a sensitivity to it. When using this medication on a regular basis, you should monitor your dog’s health closely and seek veterinary help if any unusual signs or symptoms occur.

If you decide to give your dog Ivermectin, it is important that you follow your vet’s instructions carefully.

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Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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