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NexGard Chew for Dogs is a vet-recommended oral flea and tick treatment for dogs and puppies 8 weeks and older, weighing 4 pounds or more.
It helps in the treatment and prevention of flea infestations. It also treats and controls various types of tick infestations caused by black-legged ticks, American dog ticks, Lone Star ticks, brown dog ticks, and longhorned ticks. Additionally, NexGard flea and tick treatment prevents the Borrelia burgdorferi infections that cause Lyme disease by killing black-legged vector ticks.
Available as a soft, tasty beef-flavored chew that dogs love, NexGard offers proven protection against flea and tick infestations for one month. The oral administration makes flea and tick prevention easy for you and your dog. Just give your dog one chew monthly as a treat, and they have the protection they deserve!
NexGard works quickly after administration, killing fleas before they can lay eggs. It starts killing fleas within only four hours and has been shown to kill 99% of fleas on the dog within 8 hours of administration. In laboratory studies, NexGard demonstrated >90% effectiveness against certain tick species 48 hours after infestation.
NexGard is formulated with afoxolaner as its key ingredient. When a NexGard chew is given orally, the afoxolaner gets absorbed in the bloodstream of the dog. When fleas or ticks bite the treated dog, they ingest afoxolaner. Afoxolaner interferes with the nervous system of insects, causing hyperexcitation and ultimately leading to their death.
Each chew provides a minimum dosage of 1.14 mg/lb of afoxolaner.
| Pack Color | Dog Weight | Dosage per Month | Dosage Strength (mg Afoxolaner per Chew) |
| NexGard Orange | 4-10 lbs | Administer one chew | 11.3 mg |
| NexGard Blue | 10.1-24 lbs | Administer one chew | 28.3 mg |
| NexGard Purple | 24.1-60 lbs | Administer one chew | 68.0 mg |
| NexGard Red | 60.1-121 lbs | Administer one chew | 136.0 mg |
| Over 121 lbs | Give appropriate combination of chews | ||
| Target species | 8 weeks and older puppies and dogs weighing at least 4 lbs |
| Breed Size | Small, Medium, Large & X-Large for Dogs |
| Mode of administration | Oral |
| Effective For | External Parasites (Fleas, Ticks) |
| Active Ingredient | Afoxolaner |
| Brand Name | NexGard |
NexGard contains the active substance Afoxolaner, which acts as an ectoparasiticide. This ingredient kills parasites that live on or in the skin or fur of animals, such as fleas and ticks.
No, NexGard doesn’t treat heartworms, but NexGard Spectra covers fleas, ticks, and heartworms.
Most dogs enjoy the taste of this beef-flavored chewable and take it directly by mouth. It can be given with or without food. If the dog resists the chew, you can mix it with pet food. Repeat the dosing every month, preferably on the same date.
When used as directed, NexGard has been shown to be safe and effective for dogs from 8 weeks of age, weighing at least 4 lbs. As it contains afoxolaner, use caution in dogs with a history of epilepsy or other seizure disorders. Always consult your vet before using, especially if your dog is pregnant, breeding, or lactating.
The most frequently reported side effects include vomiting, dry/flaky skin, diarrhea, lethargy, and loss of appetite. Neurologic adverse reactions, including tremors, ataxia, and seizures, have also been reported.
NexGard is indicated for the prevention of Borrelia burgdorferi infections by killing Ixodes scapularis vector ticks.
New fleas will be eliminated within 24 hours, but they may be visible for a while due to re-infestation from the environment or because fleas are hyper-stimulated before dying.
NexGard does not need to be given with food. It can be administered at any time that suits you, with or without a meal.
In well-controlled laboratory studies, no adverse reactions were observed with concomitant use of NexGard with vaccines, anthelmintics, antibiotics (including topicals), steroids, NSAIDs, anesthetics, and antihistamines.
It is never advisable to use any products labeled for dogs on your cat, including NexGard.
NexGard treatment can be started any time of the year and continued in all seasons. Year-round use is recommended for continuous flea and tick prevention. If you have multiple pets, treat all of them with relevant flea treatments.
You can buy NexGard online from a trusted store like CanadaVetExpress or from your veterinarian.
Note: All product information is based solely on the official label and manufacturer-provided details. It does not replace professional veterinary advice. Always consult your veterinarian before starting any treatment.
Still Have Questions? – Please email us your queries at support@canadavetexpress.com and we will be happy to help you.
Heartgard Plus Chewables for Dogs is a veterinarian-recommended monthly chew that helps prevent heartworm disease and treats and controls common intestinal worm infections in dogs and puppies 6 weeks of age and older.
Given once a month as a treat, the delicious, real-beef flavored chew helps prevent heartworm disease caused by Dirofilaria immitis, a serious infection that can damage a dog’s lungs and heart if left untreated.
In addition to heartworm prevention, Heartgard Plus treats and controls two species of roundworms and three species of hookworms, helping support your dog’s overall health year-round.
Heartgard Plus is formulated with two key ingredients:
When administered monthly, these ingredients work together to interrupt the parasite life cycle and help protect your dog from intestinal and heartworm infections.
Nuheart is a generic alternative to Heartgard that contains ivermectin for the prevention of heartworm disease in dogs. When administered monthly as directed, Nuheart helps eliminate developing heartworm larvae (Dirofilaria immitis) and prevents them from maturing into adult heartworms. Suitable for puppies and dogs 6 weeks of age and older, Nuheart provides reliable protection against heartworm infection.
Note: Unlike Heartgard Plus, Nuheart contains ivermectin only for heartworm disease prevention. It does not treat intestinal worms.
| Pack Color | Dog Weight | Dog Size | Dosage | Dosage strength |
| Heartgard Plus Blue | Up to 25 lbs | Small Dogs | One chew per month | 68 mcg of Ivermectin and 57 mg of Pyrantel |
| Heartgard Plus Green | 26 to 50 lbs | Medium Dogs | One chew per month | 136 mcg of Ivermectin and 114 mg of Pyrantel |
| Heartgard Plus Brown | 51 to 100 lbs | Large Dogs | One chew per month | 272 mcg of Ivermectin and 227 mg of Pyrantel |
| Dog Weight (lbs) | Dog Size | Dosage per Month |
| Up to 25 lbs | Small | Administer one tablet |
| 26 to 50 lbs | Medium | Administer one tablet |
| 51 to 100 lbs | Large | Administer one tablet |
* Use the appropriate combination of these chewables for dogs over 100 lbs.
| Target species | Dogs and puppies 6 weeks of age and older |
| Available pack sizes | Small, Medium, Large |
| Mode of administration | Oral |
| Effective For | Internal parasites (heartworms, roundworms, and hookworms) |
| Active Ingredient | Ivermectin and Pyrantel |
| Brand Name | Heartgard Plus for Dogs |
When used as directed, Heartgard Plus is safe and effective for dogs and puppies 6 weeks of age and older. However, some herding breeds (such as Collies) may have increased sensitivity to high doses of ivermectin due to MDR1 gene mutations. Heartgard Plus contains a low, preventive dose considered safe when used as directed. Additionally, all dogs should be tested for heartworm infection before starting a preventive program.
Heartgard Plus Chew contains ivermectin and pyrantel. Both these active ingredients work to protect your dog from immature heartworm larvae and intestinal worms like roundworms and hookworms.
Heartgard Plus is recommended for dogs and puppies at least 6 weeks of age. Always consult a vet before starting the treatment.
No, Heartgard Plus does not kill whipworms in dogs.
No, Heartgard Plus Chewable Tablet does not kill fleas and ticks. It is specifically designed to prevent heartworm infection and protect dogs against the dangers of heartworm disease.
Heartgard Plus Chew can be used alongside a flea and tick treatment like NexGard or Frontline Plus with a vet’s consultation.
When used as directed, Heartgard Plus Chewables have a wide safety margin in all breeds of dogs, including breeding, lactating, or pregnant dogs and puppies 6 weeks or older.
Please consult your vet if you have missed giving a dose. If a dose is missed or delayed, give Heartgard Plus as soon as possible and then resume the regular monthly dosing schedule to reduce the risk of adult heartworm development.
Heartgard Plus should be given regularly every month.
You can buy Heartgard Plus from your veterinarian or a trusted online store like CanadaVetExpress.
Note: All the product-related information is based solely on the official label and manufacturer-provided details. It does not replace professional veterinary advice. Please consult your veterinarian before starting any treatment.
Still Have Questions? – Please email us your queries at support@canadavetexpress.com and we will be happy to help you.
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