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Oct 15, 2025
The increasing issue of parasite infestations in dogs has made preventive formulas highly important for pet parents. Thankfully, there is a plethora of remedies available on the market that work excellently to treat and protect dogs from a wide range of internal and external parasites. However, that one treatment, which is one of the most popular among dog parents, is NexGard Spectra. The broad-spectrum treatment offers protection against fleas, ticks, mites, heartworm disease and intestinal worms in a single monthly dose.
In this blog, we will discuss the treatment’s benefits, efficacy and much more.
Let’s get started.
NexGard Spectra is a monthly treatment formulated to kill fleas and treat and prevent ticks. It also treats and controls mite infestations. The treatment further prevents heartworm disease. Additionally, it prevents and controls gastrointestinal worms like roundworms, hookworms and whipworms. It also protects against the development of adult oesophageal worms (Spirocercalupi) in the oesophagus of dogs.The treatment comes in the form of highly palatable monthly chews and is suitable for dogs and puppies from 8 weeks of age, weighing at least 2.0 kg.
NexGard Spectra is formulated using afoxolaner and milbemycin oxime as its active ingredients. While Afoxolaner targets ectoparasites infesting your pet’s skin, such as fleas, ticks and mites, Milbemycin Oxime is effective against endoparasites living within your pet’s digestive system and other organs. Both the ingredients work by interrupting the nervous system of the parasites, causing their paralysis and death.
NexGard Spectra should be administered according to the dosage guide provided in the product label in accordance with your canine’s age and weight.
For optimal results, administer NexGard Spectra on about the same day of each month.
Below is the guide for your ready reference.
Dog Size |
Dog Weight (Kg) |
Chewable Size (g) |
Afoxolaner (mg/ chew) |
Milbemycin Oxime (mg/ chew) |
Very Small |
1.35 – 3.5 |
0.5 |
9.4 |
1.9 |
Small |
3.6 – 7.5 |
1 |
18.8 |
3.8 |
Medium |
7.6 – 15.0 |
2 |
37.5 |
7.5 |
Large |
15.1 – 30.0 |
4 |
75.0 |
15.0 |
Very Large |
30.1 - 60 |
8 |
150.0 |
30.0 |
For dogs over 60 kg, administer an appropriate combination of chews.
Frequently Asked Questions
NexGard Spectra kills ticks by overstimulating their nervous system, resulting in their death.
NexGard Spectra is a palatable chew that can be served as a treat or with food.
NexGard Spectra doesn’t work against tapeworms. If your dog is infested with tapeworms, you will need to use a treatment that eliminates tapeworms.
A tablet of NexGard Spectra should not be split into two parts. Each dog must receive an entire chew according to its weight to achieve optimal results.
Ending Note
NexGard Spectra is one of the most popular options among pet parents to provide hassle-free and comprehensive protection against a wide range of internal and external parasites with the help of a single monthly chew. It is effective against fleas, ticks, mites, heartworm disease and common intestinal worms like roundworms, hookworms and whipworms. It makes parasite control easy for dog parents and enhances the overall well-being of dogs.
At BudgetPetSupplies, we carry NexGard Spectra and a wide range of other pet-specific treatments at the best price. Check out our online store to get your hands on your preferred products from the comfort of your home.
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