Isoxazoline antiparasitic · For Dogs · 100 lb
How much NexGard for a 100 lb dog?
A 100 lb dog (45.4 kg) should receive approximately 113.4 mg of NexGard per dose, given once monthly.
This dosage information is for educational purposes only. Always consult your veterinarian before giving any medication to your pet. Dosages may vary based on your pet's health conditions, other medications, and individual factors.
Content reviewed by licensed veterinarians. Sourced from Plumb's Veterinary Drug Handbook and the Merck Veterinary Manual.
Dosage · 100 lb dog
NexGard dose for a 100 lb dog
Low Dose
113.4
mg
Standard
113.4
mg
Max Safe
226.8
mg
Frequency
once monthly
Weight in kg
45.4 kg
Always confirm with your veterinarian before administering medication. These calculations are estimates based on published veterinary pharmacology references.
Other Weights
NexGard for a different size dog
FAQ · 100 lb dog
Questions about NexGard for a 100 lb dog
How much NexGard for a 100 lb dog?
What is the safe dose range of NexGard for a 100 lb dog?
How often can I give NexGard to a 100 lb dog?
Need a different weight?
Use the calculator on the main NexGard page for any exact weight, or read the full dosage chart and safety information.
Full NexGard dosage guide →Sources · 09
Sources & references
The dosage information on this page is compiled from the following veterinary and pharmaceutical references:
- Plumb's Veterinary Drug Handbook — the standard veterinary pharmacology reference used by veterinarians worldwide.
- Merck Veterinary Manual — a trusted, peer-reviewed resource for veterinary professionals and pet owners.
- DailyMed (FDA Drug Labels) — official FDA-approved drug labeling and prescribing information for Afoxolaner.
Read more about our methodology and how we calculate dosages.