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Nexgard Spectra Chewable Tablets
Nexgard Spectra Chewable Tablets
Nexgard Spectra Chewable Tablets
Nexgard Spectra Chewable Tablets
Nexgard Spectra Chewable Tablets

Nexgard Spectra Chewable Tablets for Large Dogs 33-66 lbs (Purple)


Select Pet's Size

  • 4.4 to 7.7lbs
  • 7.7 to 16.5lbs
  • 16.5 to 33lbs
  • 33 to 66lbs
  • 66 to 132lbs

Select Pack

  • 3 CHEWS + 1 FREE
  • 6 CHEWS + 2 FREE
Nexgard Spectra Chewable Tablets for Large Dogs 33-66 lbs (Purple) 3 CHEWS + 1 FREE

Delivery Frequency

Uses: Heartworm disease prevention, fleas, ticks and gastrointestinal worm treatment.

Doses: 1 Chew = 1 Month

  • Description
  • Key Benefits
  • Directions
  • Safety
  • More Info
  • FAQ

NexGard Spectra for Large Dogs (Purple Pack) - 5 In 1 Parasite Treatment

NexGard Spectra Purple Pack is recommended for large dogs of age 8 weeks and older and weighing between 33 and 66 lbs.

NexGard Spectra is a monthly chewable treatment that provides complete protection against fleas, ticks, heartworms, and intestinal worms like roundworms, whipworms, and hookworms, in a single tasty beef-flavored chew. It rapidly kills fleas and ticks, including brown dog ticks, bush ticks, and the deadly paralysis ticks. The active ingredient kills various mites and controls demodectic mange (caused by Demodex spp.), sarcoptic mange (caused by Sarcoptic mites), and otodectic mange (caused by ear mites). This all-in-one treatment also prevents flea tapeworm infestations by rapidly killing fleas. NexGard Spectra for Large Dogs also prevent deadly heartworm disease and aids in the control of flea allergy dermatitis.

How does NexGard Spectra for Large Dogs work?

NexGard Spectra Purple is highly effective against the most problematic parasites that infect dogs. It is formulated with two key ingredients: Afoxolaner and Milbemycin oxime. Afoxolaner kills fleas within 8 hours of administration by over-stimulating their nervous systems. On the other hand, Milbemycin oxime is a broad-spectrum antiparasitic. It is an anthelmintic (acts against intestinal worms) as well as a miticide (kills various mites spp.) The joint action of Afoxolaner and Milbemycin oxime protects dogs from various disease-causing internal and external parasites when given regularly every month.

Important Note: Please consult your vet before buying this product. Dogs with a history of seizure should only be treated after consulting a vet.

Key Benefits
  • All-rounder monthly treatment for dogs
  • Comes in a highly palatable beef-flavored chewable
  • Single treatment that kills both internal and external parasites
  • Rapidly kills fleas
  • Treats and controls brown dog ticks, bush ticks, and the deadly paralysis ticks
  • Effective against gastrointestinal worms like roundworms, hookworms, and whipworms
  • Effectively prevents heartworm disease
  • Treats and controls three of the most common mites: Demodex mites, Sarcoptic mites, and Ear mites
  • Prevents flea tapeworm infestations
  • Aids in the control of flea allergy dermatitis
  • Weigh your dog before starting the treatment
  • NexGard Spectra is available in different pack sizes according to dog weights
  • Provide it directly into the mouth or mix it with food
Dog Weight (lbs) Pack Color Dosage Afoxolaner Content Milbemycin Oxime Content
4.4-7.7 lbs Nexgard Spectra Orange 1 chew/month 9.4mg 1.9mg
7.7-16.5 lbs Nexgard Spectra Yellow 1 chew/month 18.8mg 3.8mg
16.5-33 lbs Nexgard Spectra Green 1 chew/month 37.5mg 7.5mg
33-66 lbs Nexgard Spectra Purple 1 chew/month 75mg 15mg
66-132 lbs Nexgard Spectra Red 1 chew/month 150mg 30mg
  • Wash hands after use.
  • For veterinary use only.
  • Keep out of sight of children and pets
  • Do not use in breeding, pregnant and lactating dogs.


  • Not suitable for dogs hypersensitive to this product ingredients
  • Do not treat cats with Nexgard Spectra
More Info


Afoxolaner & milbemycin oxime


Does Nexgard Spectra treat Tapeworm And Lungworm?

Nexgard Spectra is recommended to prevent lungworms in dogs, making it the only product that deals with lungworms and ticks, fleas, and roundworms. However, it does not treat tapeworms.


Is Nexgard Spectra Safe For Dogs?

Clinical records show that 98% of treated dogs show no to least side effects. In some rare cases, side effects such as vomiting, itching, lethargy, diarrhea, and loss of appetite are seen in dogs. Moreover, dogs with a history of seizures should not be treated without the vet’s advice.


How is Nexgard Spectra different from Nexgard?

Nexgard kills both fleas and ticks and protects your dog for the whole month against flea and tick infestations. Nexgard Spectra kills both fleas and ticks as well as protects against heartworms. It also treats intestinal worm infections.


Is Nexgard Spectra safe for pregnant dogs?

The safe use of Nexgard Spectra in pregnant dogs has not been evaluated yet. So, it is recommended to consult a vet before treating your pregnant dog.


Can I use Nexgard Spectra for more than once?

Nexgard Spectra is potent enough to provide complete protection for a month. So, therefore it is not recommended to treat more frequently than this.


Can Nexgard spectra help to control FAD?

Yes, Nexgard Spectra kills fleas and treats flea infestations. Thus, it reduces the incidences of Flea Allergy Dermatitis.


Still Have Questions? – Please email us your queries at and we will be happy to help you.

Customer Review

Overall Rating


178 reviews

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Great product

Highly recommend these chews if you have a picky eater like ours.

Nov 09, 2023


Best chews

Very effective, highly recommend!

Nov 03, 2023

Linda May

Haven't used it yet, vet said ok.

Good delivery,!

Oct 29, 2023


Great company several years now

Fast shipping & discount prices, thanks.

Oct 29, 2023



Nexgard chews are effective, affordable, and easy to administer.

Oct 24, 2023

Have A Question?

question-arrow Does pack each come with afoxolaner 75mg and other 15mg total 90mg?

next-arrow Each pack of Nexgard Spectra comes with different ingredient strengths.

Nov 10, 2023
question-arrow Should I give flea & tick in the fall & winter months in KY?

next-arrow We recommend you consult with a veterinarian about this.

Aug 23, 2023
question-arrow Can a chew be divided for more than one dog according to weight?

next-arrow We recommend you consult with a vet about this.

Aug 14, 2023
question-arrow I buy NexGard Spectra from the vet in Canada for my two dogs, but the NexGard Spectra that we use also includes protection from Lyme disease (6 in 1 treatment). Do you sell those NexGard Spectra tablets also?

next-arrow Nexgard Spectra contains afoxolaner as one of its active ingredients. This component kills black-legged ticks, hence is approved for preventing Lyme disease infections in dogs.

Aug 14, 2023
question-arrow Hello, I am confused. I've ordered 2 boxes of 6 pack but received 3 boxes of 3 packs? 3 items inside 1 box. Should be 2 boxes with 6 packs of supplement inside each box?

next-arrow We request you open each box and count the total number of doses you've received.

Jul 28, 2023
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