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Nexgard for Dogs and Puppies Rx

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Product Overview

How To Use

What’s in it?


Questions & Answers

Product Description

Nexgard Chewables (afoxolaner) are a monthly flea and tick control tablet that kill pesky fleas and ticks and prevents infestations in dogs and puppies 8 weeks of age and older. NexGard Chewables are the only FDA approved chewable that kills fleas and ticks on dogs to prevent infections that cause Lyme disease in dogs. They also help prevent and control flea infestations (Ctenocephalides felis), and American Dog tick (Dermacentor variabilis) infestations for one month. 
See Allivet's Flea and Tick chart to compare Flea and Tick medicines and find the best product for your dog.

Who is Nexgard for Dogs and Puppies for?

Dogs and puppies 8 weeks of age and older. Nexgard chewables should not be used on dogs or puppies that weigh less than 4 lbs.

Why use Nexgard for Dogs and Puppies?

The only FDA approved chewable to kill fleas and ticks, Nexgard chewable tablets are easy to administer and have great efficacy at low doses.

How does Nexgard for Dogs and Puppies work?

NexGard is given orally once a month, at the minimum dosage of 1.14 mg/lb (2.5 mg/kg). The main ingredient in NexGard, afoxolaner inhibits insect and acarine ligand-gated chloride channels, in particular those gated by the neurotransmitter gamma-aminobutyric acid (GABA), blocking pre-post synaptic transfer of chloride ions across cell membranes.


Boehringer Ingelheim

Active ingredient(s):


How is Nexgard for Dogs and Puppies sold?

Nexgard beef-flavored chewables are sold in color coded packages according to your dog's weight. Each size is available in 3 or 6 month supplies:
  • Green: 4-10 lbs
  • Blue: 10.1-24 lbs
  • Purple: 24.1-60 lbs
  • Red: 60.1-121 lbs.

What are the side effects of Nexgard for Dogs and Puppies?

Frequent side effects of Nexgard include:
  • Diarrhea
  • Lethargy
  • Dry or flaky skin
  • Anorexia

What special precautions are there?

Veterinarians advise to use NexGard with caution in dogs with a history of seizures.
NexGard Chewable tablets have not been evaluated for use in pregnant, breeding, or lactating dogs.

What to do if overdose?

In case of NexGard overdose, contact the closest emergency animal hospital.

How can I store Nexgard for Dogs and Puppies?

Store at or below 30°C (86°F) with excursions permitted up to 40°C (104°F).

Helpful Tips:

You can begin NexGard treatment at any time. You should use monthly in areas where fleas are common year-round.
To minimize flea infestation, it's important to treat all animals in the house.

Pharmacists are standing by to offer Pet Parent counseling regarding prescription medication purchased from Allivet before and after dispensing. Pharmacists on duty are available Monday-Friday, 9:30AM - 5:30PM EST and will be on call Saturday 12:00PM - 4:00PM EST for consultation.


NexGard can be administered with or without food. Care should be taken that the dog consumes the complete dose, and treated animals should be observed for a few minutes to ensure that part of the dose is not lost or refused. If it is suspected that any of the dose has been lost or if vomiting occurs within two hours of administration, redose with another full dose. If a dose is missed, administer NexGard and resume a monthly dosing schedule. Flea Treatment and Prevention: Treatment with NexGard may begin at any time of the year. In areas where fleas are common year-round, monthly treatment with NexGard should continue the entire year without interruption. To minimize the likelihood of flea reinfestation, it is important to treat all animals within a household with an approved flea control product.

Main Ingredients

NexGard (afoxolaner) is manufactured by Merial and contains the active ingredient afoxolaner.  Each tablets provides a minimum afoxolaner dosage of 1.14 mg/lb (2.5 mg/kg). 

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Nexgard for Dogs and Puppies

Frequently Asked Questions about NexGard

Do i need a prescription for NexGard?

Can NexGard kill my dog?

Where can I get NexGard?

What is the price of NexGard?

Is there a Generic NexGard?

Is there a recall on NexGard?

Does NexGard make dogs sick?

Does NexGard cause neurological problems?

What if my dog throws up after taking NexGard?

Does NexGard causes seizures in Dogs?

Can my dog still get fleas with NexGard?

How fast does NexGard work?

When does NexGard start killing fleas?

Can NexGard be cut in half?

Can NexGard cause itching?

Can NexGard be used on pregnant dogs?

Can NexGard be used on cats?

Can NexGard kill mites?

How does Nexgard compare to other flea treatments?

Can you give NexGard with or without food?

Customer Submitted Questions

What is the weight range for puppies?

1 Answer

How many pills? Months does this cover?

1 Answer

Can i use this for my 15 year old cushings dog?

1 Answer

Is this okay for a 13 year old diabetic poodle

1 Answer
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