Can Dogs Still Get Ticks with NexGard?
Flea and tick prevention is a cornerstone of canine health care. Products like NexGard, an oral chewable, are trusted by pet owners and veterinarians alike for their effectiveness. But a common question among dog owners is whether a dog can still get ticks even while being treated with NexGard. The short answer is yes — ticks can latch onto your dog, but NexGard kills them shortly after they’ve started feeding, offering critical protection against tick-borne diseases.
How NexGard Works
NexGard contains the active ingredient afoxolaner, which is absorbed into the bloodstream after ingestion. When a tick bites a treated dog, it consumes blood infused with the chemical, which subsequently kills the parasite. Although this doesn’t prevent ticks from initially attaching, it significantly reduces the risk of disease transmission by killing the tick within hours.
Why Dogs Still Attract Ticks with NexGard
Understanding how NexGard functions helps explain why ticks might still be seen crawling or attached to the dog’s skin:
- Method of Action: NexGard doesn’t repel ticks; it kills them after they bite.
- Exposure: Dogs with routine outdoor access are frequently exposed to tick-prone environments.
- Optimal Timing: Missed doses or late administration can reduce the effectiveness of the product.
Importance of Year-Round Prevention
Ticks are incredibly resilient and can thrive in various geographic areas year-round. Consistent use of preventatives like NexGard is critical to disrupt the tick life cycle and provide constant protection. Ticks can transmit serious diseases such as:
- Lyme disease
- Rocky Mountain spotted fever
- Anaplasmosis
- Babesiosis
Many of these diseases can also affect humans, making prevention a key component of overall household safety.
Consider Complementary Prevention Strategies
Since NexGard allows for initial tick attachment, combining it with complementary strategies can offer added defense:
- Environmental control: Keeping your yard trimmed, leaf-litter free, and treating outdoor areas can help limit ticks.
- Regular checks: Inspect your dog after outdoor adventures, especially around the ears, neck, and between toes.
- Alternative products: Topical treatments like K9 Advantix II and Vectra 3D provide tick repellent action, reducing attachment.
Know When to Consult the Vet
Veterinarians play a vital role in tailoring the right flea and tick prevention plan based on:
- Geographic parasite prevalence
- Your dog’s age, weight, and health
- Breed-specific sensitivities, such as MDR-1 mutation
Prescription products like NexGard are generally more effective and safe compared to over-the-counter options. Still, periodic check-ins with your vet ensure the product remains suitable as your dog ages or develops medical complexities.
Proper Use Maximizes Protection
To get the best results from NexGard:
- Administer it monthly on the same day
- Ensure your dog fully ingests the chewable
- Avoid skipping or delaying doses
Always follow package instructions and veterinary advice closely to avoid efficacy gaps.
Conclusion
Yes, dogs can still get ticks while on NexGard, but these ticks usually die quickly after feeding. While the product doesn’t repel ticks, it protects dogs by killing the parasite before it can transmit dangerous diseases. Year-round use, careful administration, and complementary preventive strategies further enhance protection. Always consult with your veterinarian to identify the most effective preventive plan tailored to your dog’s unique lifestyle and health profile.





