NexGard Plus vs Sentinel Spectrum: Differences, Pros, Cons, and Best Use Cases
NexGard Plus and Sentinel Spectrum may treat similar problems, but they are not the same fit. Start with species, what each one covers, and how you want to give it.
DogRXChewable
NexGard Plus
Combination monthly chewable for dogs positioned for high-intent comparison against Simparica Trio and other combo preventives.
IngredientAfoxolaner, Milbemycin Oxime
Coveragefleas, ticks, heartworm, hookworms, roundworms
FrequencyMonthly
DogRXChewable
Sentinel Spectrum
Monthly dog parasite preventive that combines heartworm protection with flea-control intent and broader worm coverage.
IngredientMilbemycin Oxime, Lufenuron, Praziquantel
Coverageheartworm, fleas, hookworms, roundworms, tapeworms, whipworms
FrequencyMonthly
Compare
NexGard Plus
Sentinel Spectrum
Active ingredient
Afoxolaner, Milbemycin Oxime
Milbemycin Oxime, Lufenuron, Praziquantel
Species
DOG
DOG
Form
Chewable
Chewable
Frequency
Monthly
Monthly
Prescription
RX
RX
Coverage
fleas, ticks, heartworm, hookworms, roundworms
heartworm, fleas, hookworms, roundworms, tapeworms, whipworms
Best-for summary
Sentinel Spectrum is often the stronger pick when broader coverage matters most. NexGard Plus may be easier to choose when you want a simpler or narrower fit.
Informational comparison only. Not veterinary advice.
NexGard Plus: pros and cons
Broad combined coverage
Monthly chewable convenience
Strong comparison intent with Simparica Trio
Prescription required
Dog-only
May be broader than some households need
Sentinel Spectrum: pros and cons
Broad combination coverage
Monthly routine
Useful for combo-prevention best-of pages
Prescription required
Dog-only
Not a tick-focused option