All 5 recommendations
Est. prices as of Mar 12, 2026
#1 · Zoetis · Premium Pick
Simparica Trio
$120-150/3 months
The holy trinity: kills fleas, ticks, AND prevents heartworm in one chew
- ✓ Oral tablet (no messy topical application)
- ✓ Kills adult fleas within 30 minutes, lasts 35 days
- ✓ Also covers ticks, mites, and heartworm prevention
- ✓ Dogs actually eat it willingly
- ✗ Most expensive option—requires vet prescription
- ✗ Overkill if you only need flea prevention without heartworm coverage
#2 · Boehringer Ingelheim · Crowd Favorite
NexGard Plus
$100-140/3 months
The reliable workhorse: proven flea and tick killer that vets trust
- ✓ Monthly chewable tablet (simple dosing)
- ✓ Kills fleas within 30 minutes, lasts full month
- ✓ Excellent tick coverage including paralysis ticks
- ✓ Well-established safety record
- ✗ Doesn't cover heartworm prevention (separate medication needed)
- ✗ Requires vet prescription
- ✗ Some dogs report mild GI upset
#3 · Zoetis · Best Value
Revolution Plus (Selamectin)
$80-120/6 months
The topical classic that still works—apply once monthly on the back of the neck
- ✓ Affordable and widely available at vets
- ✓ Kills fleas, ticks, ear mites, and lice
- ✓ Waterproof after drying (2-hour wait)
- ✓ Works on cats too (separate formula)
- ✗ Messy topical application—some dogs hate it
- ✗ Can cause greasiness in coat for 24 hours
- ✗ Less palatable than oral options for pet owners
#4 · Elanco · Hidden Gem
Capstar (Nitenpyram)
$15-25 per tablet
The emergency knockout: kills fleas dead in 24 hours—perfect for crisis mode
- ✓ Cheapest option per dose
- ✓ Fastest relief—kills adult fleas in 30 minutes
- ✓ Available over-the-counter, no vet prescription needed
- ✓ Great for acute infestations while waiting for long-term prevention
- ✗ Only lasts 24-48 hours (must use with monthly prevention)
- ✗ Doesn't kill flea eggs or larvae
- ✗ Not suitable as standalone long-term treatment
- ✗ Dogs can get reinfected immediately after effectiveness ends
#5 · Boehringer Ingelheim
Frontline Plus (Fipronil)
$60-90/3 months
The dated classic: still available but resistance is catching up
- ✓ Affordable and long-standing brand recognition
- ✓ Kills fleas and ticks for up to 30 days
- ✓ Available at most pet stores and online
- ✗ Growing flea resistance in many regions—increasingly ineffective
- ✗ Topical formula messier than newer options
- ✗ Vets now recommend alternatives due to resistance concerns
- ✗ Takes 12-24 hours to fully kill fleas (slow compared to Simparica/NexGard)