NexGard Spectra – Broad-Spectrum Treatment for Dogs
Flea, tick, and worm issues are no longer limited to specific seasons. NexGard Spectra for dogs offers one of the most complete parasite protection solutions available. With just one dose per month, it protects your dog against a variety of internal and external parasites in all seasons. This broad-spectrum treatment is effective against fleas, ticks, heartworms, intestinal worms, mange, and mites.
NexGard Spectra flea, tick & worm treatment comes in a tasty beef-flavored chew, providing your dog with a treat-like experience every time. It's that simple and hassle-free. A single chew protects for a full 30 days; your dog is safe for a complete month, uninterrupted. NexGard Spectra heartworm chews for dogs are available in five different weight-specific packs, catering to dogs of all sizes. Buy NexGard Spectra Chews for a simple and effective way to keep your dog parasite-free, inside and out.
Recommended For:
- Puppies & dogs.
- NexGard Spectra Chews are suitable for puppies and dogs from 8 weeks of age, weighing 4.4 lbs or greater.
NexGard Spectra Coverage:
- Kills adult fleas.
- Treats & prevents flea infestations.
- Controls flea allergy dermatitis.
- Helps reduce the risk of flea tapeworm infestations by controlling fleas.
- Kills newly acquired fleas before they can lay eggs.
- Prevents heartworm disease.
- Treats & controls brown dog tick & Asian longhorned tick infestations.
- Treats & controls demodectic mange, sarcoptic mange & ear mite infestations.
- Treats & controls roundworms, hookworms & whipworms.
NexGard Spectra contains afoxolaner and milbemycin oxime as its active ingredients. After administration, the active components are absorbed into the dog's bloodstream. The formula causes overstimulation in the nervous systems of the relevant parasites, resulting in their death. Afoxolaner targets ectoparasites (fleas, ticks, and mites). Milbemycin oxime manages endoparasites (heartworm and intestinal worms) within your pet's digestive system and relevant organs.
According to the product label, NexGard Spectra kills fleas within 6-8 hours. It killed more than 90% of brown dog ticks and Asian longhorned ticks within 48 hours, as per studies referenced in the label.
How to Use NexGard Spectra Chews for Dogs?
- You can begin your dog's treatment with NexGard Spectra at any time of the year.
- Weigh your dog to determine the correct dosage strength.
- Administer NexGard Spectra orally as a single dose, once every month.
- It can be given with or without food. When giving food, ensure your dog takes the complete dose. If you suspect that the dog has not taken the complete dose, give another full dose.
- If you miss a dose, administer one dose as soon as you recall dosing and resume with monthly dosing.
- When switching from another heartworm preventive product to NexGard Spectra, administer the first dose within 30 days of the last dose of the former product.
- Talk to a vet before starting a heartworm preventive program.
- For continuous, year-round protection, continue the treatment throughout the year without interruption.
NexGard Spectra for Dogs Dosing Guide:
| Dog Size |
Dog Weight (lbs) |
Pack Color |
Afoxolaner (mg) |
Milbemycin oxime (mg) |
Dose Per Month |
| XSmall Dogs |
4.4 – 7.7 |
Orange |
9.4 |
1.9 |
One |
| Small Dogs |
7.7 – 16.5 |
Yellow |
18.8 |
3.8 |
One |
| Medium Dogs |
16.5 – 33.0 |
Green |
37.5 |
7.5 |
One |
| Large Dogs |
33.0 – 66.0 |
Purple |
75.0 |
15.0 |
One |
| XLarge Dogs |
66.0 – 132.0 |
Red |
150.0 |
30.0 |
One |
For dogs over 132.0 lbs, administer the appropriate combination of NexGard Spectra Chews.
NexGard Spectra is not for use in humans. You should keep these chews out of the reach of children, uninformed people, and pets. In case of accidental ingestion, immediately consult a physician. NexGard Spectra can be used in pregnant, breeding, or lactating female dogs. However, its safety has not been evaluated in breeding male dogs. These chews should be used with caution in dogs with a history of seizures or neurologic disorders.
Do not administer NexGard Spectra to puppies under 8 weeks of age or under 4.4 lbs of body weight. As it is an oral treatment, there are no restrictions on your dog’s swimming, bathing, and shampooing before or after the treatment.
Do not open the inner pouch until you are ready to use the treatment. Wash your hands thoroughly after handling.
Storage Guide:
- Store below 30°C (room temperature). Protect from light.
What does NexGard Spectra do for my dog?
NexGard Spectra for dogs is a beef-flavored chewable treatment that effectively protects puppies and dogs against internal and external parasites. A once-monthly dose is effective against fleas, ticks, heartworm disease, intestinal worms, mange, and mites.
How does NexGard Spectra kill fleas & ticks?
Afoxolaner, one of the active ingredients in NexGard Spectra, kills fleas and ticks by overstimulating the nervous system of these parasites. This results in paralysis and death of fleas and ticks.
How soon does NexGard Spectra work on my dog?
After oral administration, the active ingredients in the treatment are absorbed within four hours. It kills fleas within 6-8 hours according to the labeled indications.
Does NexGard Spectra protect my dog from heavy flea infestations?
NexGard Spectra kills fleas quickly before they can lay eggs, thus preventing further infestation of the environment. To reduce the risk of re-infestation, you should treat all the pets in your household for fleas.
What happens if I am late in dosing or miss a dose?
If you miss a dose by 15 days or less, administer one dose immediately and resume the monthly dosing schedule. If the interval is more than 15 days and up to a month, you can maintain heartworm prevention by redosing immediately and continuing regular monthly dosing for the following two months. If the gap is 60 days or more, consult a veterinarian.
At what age can I start giving NexGard Spectra to my dog?
NexGard Spectra is suitable for puppies and dogs from 8 weeks of age and 4.4 lbs of body weight.
Can NexGard Spectra for dogs chews be split, so I can give them to more than one dog?
To ensure your dog receives full coverage, it is necessary to administer the correct dose. Your dog must consume one entire chew according to their weight.
Can I use NexGard Spectra in dogs with food allergies?
NexGard Spectra for dogs contains soy proteins. You should use these chews with caution in dogs with a known sensitivity to soy. Talk to a vet before using NexGard Spectra in dogs with food allergies.
I have a pregnant dog. Can I use NexGard Spectra?
NexGard Spectra can be used in breeding, pregnant, and lactating female dogs. However, the safety of these chews has not been evaluated in breeding males.
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