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Nexgard Spectra Tab Xlarge Dog 66-132 lbs Red

$63.25
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Nexgard Spectra Tab Xlarge Dog 66-132 lbs Red
$63.25
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NexGard Spectra for Extra Large Dogs (Red): All-in-one Parasite Protection

Provide your dog with broad-spectrum parasite protection with NexGard Spectra chewables for extra large dogs (red). The combination of afoxolaner and milbemycin oxime in this monthly treatment helps protect dogs against fleas, ticks, mites, lice, and heartworm and intestinal worms.

This oral treatment comes in a tasty, beef-flavored chew form that dogs love. This vet-recommended, fast-acting formula is suitable for use in dogs from 8 weeks of age, and weighing between 66 & 132 lbs.

Why choose NexGard Spectra for Extra Large Dogs (Red)?

  • Rapidly kills adult fleas, and treats and prevents flea infestations
  • Kills newly acquired fleas before they can lay eggs
  • Controls flea allergy dermatitis
  • Helps prevent flea tapeworm infestations due to effective flea control
  • Treats and controls paralysis ticks and brown dog ticks
  • Treats and controls demodectic mange, sarcoptic mange, and ear mite infestations
  • Prevents heartworm disease caused by Dirofilaria immitis
  • Treats and controls roundworms, hookworms and whipworms

NexGard Spectra for Extra Large Dogs (Red): Monthly parasite prevention chews

NexGard Spectra for Extra Large Dogs contains two active ingredients: Afoxolaner and milbemycin oxime. These powerful ingredients over-stimulate the nervous system of parasites, which results in their death. This rapid action formula kills fleas within 6-8 hours following administration. NexGard Spectra offers quick relief to your dog from multiple parasite infestations.

Ingredients

Afoxolaner and Milbemycin Oxime

Why To Use Nexgard Spectra
  • Vet-recommended, all-in-one parasite protection for dogs
  • Easy monthly dosage
  • Tasty, beef-flavored chews that dogs love
  • Fast-action formula
  • Can be given to dogs from 8 weeks of age
  • Available in weight-specific doses for dogs of different sizes
Usage Directions For Nexgard Spectra
  • NexGard Spectra is available in five different packs for weight-appropriate dosage in dogs of different sizes. The packs are available in color-coded boxes for easy identification and convenient selection.
  • Check your dog’s weight and get the pack that is appropriate for your dog’s body weight.
  • Remove only one chewable at a time from the foil-backed blister card.
  • Give the chew directly into the mouth or with a small amount of food.
  • You may also offer this chew as a treat to your dog.
  • Ensure that your dog consumes the complete dose.
  • Observe your treated dog for a few minutes to ensure that a part of the dose is not lost or rejected.
  • If you suspect that any of the dose has been lost, treat your dog again with another full dose.
  • If you miss a dose, administer the chewable(s) appropriate for your dog’s weight and resume a monthly dosing regimen.
  • For optimal parasite control, treat your dog on or about the same day each month, irrespective of the number of days in the month.
  • Monthly treatment with this chew should continue throughout the year for your dog’s uninterrupted parasite protection.
  • To minimize the likelihood of flea re-infestation, it is important to treat all animals within the household with a flea treatment.

Dosage guide:

Dog weight (lbs.) Dog size Pack color Dosage (monthly) Afoxolaner (mg/chew) Milbemycin oxime (mg/chew)
4.4 – 7.7 Extra small Orange One Chew 9.4 1.9
7.7 – 16.5 Small Yellow One Chew 18.8 3.8
16.5 – 33 Medium Green One Chew 37.5 7.5
33 – 66 Large Purple One Chew 75 15
66 – 132* Extra large Red One Chew 150 30

*For dogs weighing over 132 lbs.: Administer the appropriate combination of chewables.

Nexgard Spectra Protective Measures

For animals:

  • For animal treatment only.
  • Do not use in dogs less than 8 weeks of age.
  • Read the entire label and follow the safety directions.

For humans:

  • It is not for human use.
  • Keep out of reach of children.
  • Do not swallow it.
  • Wash your hands after handling the product.
  • If poisoning occurs, contact a doctor or Poisons Information Center.
  • If in the eyes, hold eyes open, flood with water for at least 15 minutes and see a doctor.

Precautions

  • Consult your veterinarian before starting a heartworm prevention program.
  • Take your veterinarian’s advice before using it in breeding male dogs.

Storage & disposal

  • Do not open the inner pouch until ready for use.
  • Dispose of the empty container by wrapping it with paper and putting it in the garbage.
  • Store below 30°C (room temperature).
  • Protect from light.
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dog range
Because your puppy needs protection too

Nexgard Spectra is suitable for puppies & dogs from 8 weeks of age & 4.4 lbs of body weight. No more worries for your young canine.

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Two powerful ingredients in one tasty chew

Nexgard Spectra is formulated with two powerful actives, afoxolaner & milbemycin oxime. This combination works collectively to deliver monthly protection to dogs against a range of internal & external parasites.

Nexgard Spectra Makes Parasite Protection Easy

Nexgard Spectra offers the most complete parasite protection, all in one tasty chew. A single dose of Nexgard Spectra provides broad-spectrum coverage against these key parasites,

Click on each parasite to find out more

Fleas
fleas
  1. Kills adult fleas
  2. Treats & prevents flea infestations
  3. Controls flea allergy dermatitis
  4. Fleas are killed within 6-8 hours
  5. Kills newly acquired fleas before they can lay eggs
Ticks
ticks
  1. Controls brown dog ticks
  2. Kills >95 brown dog ticks within 48 hours
  3. Demonstrates >95 tick efficacy for a complete month
dog
Heartworms
heartworms
  1. Prevents heartworm disease caused by Dirofilaria immitis
Intestinal Worms
intestinal worms
  1. Treats & controls roundworms, hookworms & whipworms
  2. Prevents flea tapeworm infestations
Also Covers
mange

Mange

mites

Mites

lice

Lice

  1. Treats & controls mange & mites
  2. Treats & controls biting lice
Nexgard Spectra - More reasons to love!

Nexgard Spectra is a once monthly all-in-one palatable chew that your dog will love taking and you will enjoy giving.

Broad-spectrum protection

A single dose protects against fleas, ticks, heartworms, intestinal worms, biting lice, mange & mites

A monthly treat

A soft, tasty chew dogs find hard to resist

Ideal for puppies

Suitable for puppies from 8 weeks of age

Safe for pregnant dogs

Can be used in breeding, pregnant & lactating dogs

Protects inside and out

Effective against both external and internal parasites

Protection for Dogs of Every Size

Nexgard Spectra comes in various packs, providing dosing options for dogs of different ages (from 8 weeks) and weight sizes.

Nexgard Spectra is available in 3 and 6 doses packs, providing flexible ordering options depending on your dog's treatment requirements.

Nexgard Spectra for Dog Reviews

4.8

238 Reviews(s)

5 Star
84.03 %
4 Star
15.13 %
3 Star
0.84 %
2 Star
0 %
1 Star
0 %

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Yearly Planning
Submitted by Beck on Sep 12, 2026
I like planning ahead so my dog's preventive needs don't catch me by surprise.
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Complete Routine
Submitted by Evander on Sep 06, 2026
I find this helpful for keeping my dog's preventive care organized in one place.
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Active Choice
Submitted by Bellamy on Aug 29, 2026
It suits my dog well since we spend a lot of time outdoors together.
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Outdoor Ready
Submitted by Holden on Aug 22, 2026
It suits my dog's active lifestyle and makes routine protection easier to manage.
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Handy Option
Submitted by Beckett on Aug 15, 2026
I appreciate having a single product that fits several parts of my dog's care routine
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