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Nexgard Spectra Tab Large Dog 33-66 lbs Purple
4.7/5
(383)
Nexgard Spectra

Nexgard Spectra Tab Large Dog 33-66 lbs Purple

4.7/5
(383)
$59.29
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Select Size
  • 4.4 to 7.7lbs
  • 7.7 to 16.5lbs
  • 16.5 to 33lbs
  • 33 to 66lbs
  • 66 to 132lbs
Select Pack
  • 3 Pack
  • 6 Pack
$59.29
$53.36

Delivery Frequency

  • Information
  • Key Benefits
  • Directions for Use
  • Safety
Information

NexGard Spectra Purple for Large Dogs: Broad-spectrum Parasite Protection Chews

NexGard Spectra Purple for Large Dogs can work as an all-in-one solution for your dog’s parasite infestation woes. This single, monthly treatment protects dogs against fleas, ticks, mites, lice, intestinal worms and heartworm disease. This tasty chew features a beef flavor that dogs love, making the dosage an easy task. Its dosage is convenient, as you can give the chew to your dog with or without food, or even as a treat. The all-inclusive chew is suitable for dogs and puppies from 8 weeks of age and weighing between 33 and 66 lbs.

NexGard Spectra Purple coverage

You may begin your dog’s treatment with NexGard Spectra Chewables at any time of the year. This monthly chew treats and controls ticks and kills fleas. It prevents flea infestations, as the newly acquired fleas get killed before they can lay eggs. Because of its rapid action against fleas, NexGard Spectra chew helps control flea allergy dermatitis.

This broad-spectrum chew also treats and controls roundworms, hookworms and whipworms, and helps prevent flea tapeworm infestations. It prevents heartworm disease caused by Dirofilaria immitis. Additionally, this tasty chew treats and controls demodectic mange, sarcoptic mange and ear mite infestations.

How does NexGard Spectra Purple work?

NexGard Spectra Purple for Large Dogs contains two active ingredients: Afoxolaner and milbemycin oxime. They are absorbed into the bloodstream and, upon ingestion by parasites, the ingredients overstimulate their nervous system, resulting in uncontrolled activity and death of parasites. Following administration of NexGard Spectra Chews, fleas are killed within 6-8 hours. With NexGard Spectra, your dog also gets quicker relief from other parasite infestations.

Ingredients

Afoxolaner and Milbemycinoxime

Key Benefits
Advantages Of Nexgard Spectra
  • All-in-one parasite protection for dogs
  • Convenient monthly treatment
  • Offers a tasty beef flavor that dogs love
  • Protects against:
    • Fleas
    • Ticks
    • Mites
    • Intestinal worms
    • Heartworm disease
  • Can be given with or without food
  • Suitable for dogs and puppies from 8 weeks of age
  • Kills fleas before they can lay eggs, thus helping to prevent infestation of the environment
  • Helps provide year-round parasite protection when administered as directed
  • Available in different packs for weight-appropriate dosage
Directions for Use

Instructions To Use Nexgard Spectra

  • Weigh your dog and get the suitable NexGard Spectra pack for your dog.
  • Remove one chewable from the foil-backed blister card.
  • Give the chew to your dog directly into the mouth or give it with a small amount of food.
  • This soft, palatable chew can also be offered as a treat.
  • Observe your dog for a few minutes and ensure that they have consumed the complete dose.
  • If you suspect that a part of the dose is lost or rejected, treat your dog again with a full dose.
  • If a dose is missed, administer the weight-appropriate dosage of NexGard Spectra Chewable(s) to your dog and resume the monthly dosing regimen.
  • For optimal parasite control, administer the dosage on or about the same day each month, irrespective of the number of days in a month.

Packaging:

  • NexGard Spectra is available in five different sizes for a weight-appropriate dosage.
  • The packs are color-coded for easier identification.

Dosing schedule:

Dog weight (lbs.) Dog size Pack color Chewable size (g) Afoxolaner (mg/chew) Milbemycin oxime (mg/chew)
4.4 - 7.7 Extra small Orange 0.5 9.4 1.9
7.7 – 16.5 Small Yellow 1 18.8 3.8
16.5 - 33 Medium Green 2 37.5 7.5
33 - 66 Large Purple 4 75.0 15.0
66 - 132 Extra-large Red 8 150.0 30.0
Over 132 Administer the appropriate combination of chewables
Safety
Nexgard Spectra Safety Measures
  • This chew is for animal treatment only.
  • Do not use it in dogs less than 8 weeks of age.
  • Keep it out of reach of children to avoid accidental ingestion.
  • Always read the label and follow the directions for use.
  • Do not open the inner pouch until ready for use.
  • Wash your hands after handling this product.
  • If in the eyes, flood the eyes with water for at least 15 minutes and see a doctor.
  • If poisoning occurs, contact a doctor or the poisons information centre.
  • Wrap the empty container in paper and dispose of it by putting it in the garbage.

Precautions

  • The use of this chew in heartworm-positive dogs has not been evaluated. Consult your veterinarian before using it in such dogs.
  • The safe use of this chew in breeding male dogs has not been evaluated. Check with your veterinarian before using it in such pets.

Storage

  • Store below 30°C (room temperature).
  • Protect from light.
Customer Review
Overall Rating

Star4.7/5

383 reviews
383 reviews
Sort By:
Mia
Helpful for Pet Owners

Makes caring for pets easier.

Mar 03, 2026
Dawn
Nexgard Spectra

The products are great! Orders get shipped out fast. Customer service is available when you need them.

Feb 25, 2026
Sharon
Nexguard

Been buying from them for years . Great company & no hassles

Feb 24, 2026
Darlene
5

Supesuper servicers antas

Feb 22, 2026
Stephen
Quality products sent quickly

Every order I’ve submitted was sent quickly and arrived as advertised.

Feb 21, 2026
Have A Question?
Question:
Q:

Does NexGard Spectra kill ear mites?

Answer:
A:

Nexgard Spectra is known to kill mites in dogs.

Oct 21, 2024
Question:
Q:

What types of worms are treated by NexGard Spectra for dogs?

Answer:
A:

Nexgard Spectra prevents heartworm disease. It is also effective against roundworms, hookworms and whipworms.

Oct 21, 2024
Nexgard Spectra Tab Large Dog 33-66 lbs Purple 3 Pack
$59.29

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