NexGard for Dogs: I Compared 5 Online Pharmacies So You Don't Have To
NexGard is the flea and tick chewable your vet probably already recommended. It works. The question is where to buy it without paying $70 at the clinic counter. Short answer: online pharmacies sell the exact same box for 30-50% less.
BudgetPetCare
Code SAVE15 for 15% off + free shipping
What NexGard Actually Does
NexGard is a beef-flavored chewable that kills fleas and ticks for a full month. Dogs eat it like a treat. The active ingredient is afoxolaner, which gets into your dog's bloodstream and kills parasites when they bite. Fleas start dying within 4 hours. Ticks within 24.
It is FDA-approved, made by Boehringer Ingelheim (the same company that makes Frontline), and available by prescription in the US. Most online pharmacies have their own vets who review and approve orders, so you do not need to visit your clinic just for the script.
NexGard covers: adult fleas, black-legged ticks, American dog ticks, Lone Star ticks, and brown dog ticks. It does not cover heartworm. If you want heartworm protection too, you need NexGard Spectra (available in Australia and Europe, not US) or a separate heartworm preventive like Heartgard Plus.
The Short Version
- Dogs eat it willingly (beef flavor)
- Kills fleas within 4 hours
- One chew lasts a full month
- Safe for puppies 8+ weeks, 4+ lbs
- Available at 30-50% off clinic prices online
- Requires a prescription
- Does not cover heartworm
- Not cheap at full retail ($60-70/dose)
- Rare side effects: vomiting, lethargy, seizures in dogs with history
Where I Checked Prices (June 2026)
I looked up a 6-month supply of NexGard for a medium dog (24-60 lbs, the most common size). Every site below sells genuine, manufacturer-packaged product. Same box your vet sells.
| Pharmacy | 6-Month Price | Best Coupon | Final Price |
|---|---|---|---|
| BudgetPetCare | $198 | SAVE15 (15% off) | $168 |
| CanadaPetCare | $210 | CPC12ON (12% off) | $185 |
| BestVetCare | $205 | BIGBONUS (up to $25 off) | $180 |
| Chewy | $370 | none | $370 |
| Vet Clinic (avg) | $380 | none | $380 |
Chewy and vet prices are full retail. Online international pharmacies like BudgetPetCare and CanadaPetCare source from the same manufacturers but operate in markets where pricing is not padded by the US distribution chain. Orders take 7-14 days to arrive. All offer free shipping.
Side Effects Worth Knowing About
The FDA label lists vomiting, dry skin, diarrhea, and lethargy as the most common side effects, each occurring in about 1-2% of doses. Most dogs have zero issues.
The one thing to actually pay attention to: if your dog has a history of seizures, talk to your vet before starting NexGard. The isoxazoline class (NexGard, Bravecto, Simparica, Credelio) carries an FDA warning about neurological events in dogs with pre-existing seizure disorders. The absolute risk is very low, something like 0.01% of doses. But it is real, and it is the reason you should not buy these without at least a conversation with someone who knows your dog's history.
If your dog has never had a seizure, the risk is negligible. Millions of doses are given every year without incident.
Active Coupon Codes (June 2026)
Codes verified June 19, 2026. We earn a commission if you buy through our links, at no extra cost to you.
NexGard vs Bravecto vs Simparica
| Feature | NexGard | Bravecto | Simparica Trio |
|---|---|---|---|
| Active ingredient | Afoxolaner | Fluralaner | Sarolaner + Moxidectin + Pyrantel |
| Duration | 1 month | 3 months | 1 month |
| Kills fleas in | 4 hours | 2 hours | 3 hours |
| Heartworm? | No | No | Yes |
| Price per month | $28-33 | $18-22 | $30-35 |
| Best for | Monthly routine | Set and forget | All-in-one protection |
Bottom Line
NexGard works. Every flea and tick preventive on the market works when used correctly. The difference between them is your dog's taste preference, your budget, and whether you want to combine heartworm into a single chew.
If all you need is flea and tick protection and your dog eats anything that looks like a treat, NexGard is a solid choice. Buy it online, not at the clinic. The savings over a year are about $200 for a single dog, and that is not a small amount of money.
Get NexGard with SAVE15 Code → affiliate link