NexGard Soft Chewable Tablets Main Uses
Flea Treatment and Prevention: Kills adult fleas (Ctenocephalides felis) and is used for the treatment and prevention of flea infestations.
Tick Treatment and Control: Effectively treats and controls multiple tick species common in Canada, including the Black-legged (Deer) Tick (Ixodes scapularis), American Dog Tick (Dermacentor variabilis), and Brown Dog Tick (Rhipicephalus sanguineus).
Lyme Disease Prevention: Indicated for the prevention of Borrelia burgdorferi (Lyme disease) by killing the black-legged tick vector.
 
NexGard Soft Chewable Tablets Active Ingredients
Afoxolaner: A member of the isoxazoline class of parasiticides.
Mechanism of Action: It is absorbed into the dog's bloodstream. When a flea or tick bites, it ingests the afoxolaner, which interferes with the parasite's central nervous system by blocking GABA-gated chloride channels. This leads to hyperexcitation and rapid death of the parasite.
Formulation: A soft, beef-flavored chewable designed for high palatability to ensure easy oral administration.
 
NexGard Soft Chewable Tablets Dosage & Administration
Recommended Dosage: Administered orally once a month at a minimum dosage of 2.5 mg/kg (1.14 mg/lb).
Weight-Based Dosing: Available in four specific strengths to accommodate different weight ranges:
Orange 11.3 mg: For dogs 1.8–4.5 kg (4–10 lbs)
Blue 28.3 mg: For dogs 4.6–10.9 kg (10.1–24 lbs)
Purple 68.0 mg: For dogs 11.0–27.2 kg (24.1–60 lbs)
Red 136.0 mg: For dogs 27.3–54.4 kg (60.1–121 lbs)
Administration: Can be given with or without food. If vomiting occurs within two hours of administration, a full second dose should be given.
Age Requirement: Safe for use in puppies 8 weeks of age and older, weighing at least 1.8 kg (4 lbs).
 
NexGard Soft Chewable Tablets Side Effects & Safety
Common Side Effects: Generally well-tolerated; the most frequently reported adverse reactions include vomiting, dry/flaky skin, diarrhea, lethargy, and lack of appetite.
Neurological Warning: It should be used with caution in dogs with a history of seizures or neurological disorders.
Contraindications: There are no known drug contraindications; however, its safe use in breeding, pregnant, or lactating dogs has not been evaluated.
Safe Duration: Intended for year-round monthly use to provide continuous protection against parasites.
 
NexGard Soft Chewable Tablets Manufacturer Information
Manufacturer: Boehringer Ingelheim Animal Health Canada Inc.
Official Website: https://www.nexgard.ca/
Brand Introduction: Boehringer Ingelheim is a leading global animal health company. Their NexGard line is a staple in Canadian veterinary clinics, recognized for being the first soft chewable flea and tick preventative. In Canada, NexGard is a prescription-only medication (DIN 02419107, 02419115, etc.) to ensure it is used under veterinary supervision.