Comparing the Safety of NexGard and Bravecto for Dogs
Pet owners are often faced with a dilemma when choosing the best flea and tick prevention for their dogs. Among the most popular veterinarian-recommended brands are NexGard and Bravecto. Both offer effective protection against fleas and ticks but differ in ingredients, duration of action, and individual tolerability. Understanding their safety profiles helps determine which is more suitable for your pet.
The Importance of Flea and Tick Prevention
Fleas and ticks can cause discomfort, allergic reactions, and disease transmission such as Lyme disease, ehrlichiosis, and Rocky Mountain spotted fever. Since these parasites are active year-round across the United States, continuous protection is essential.
Overview of NexGard and Bravecto
- NexGard: A monthly oral chew that kills fleas and ticks. Also available in a variant, NexGard Plus, which includes heartworm and intestinal worm protection.
- Bravecto: Available as a chew or topical application, it offers up to 12 weeks of flea and tick protection in one dose.
Safety Considerations
Modern flea and tick preventatives undergo rigorous testing before receiving veterinary approval. Both NexGard and Bravecto belong to this category and are considered safe for dogs when used according to the instructions.
Key Factors Affecting Safety:
- Age and Weight: These medications have specific minimum age and weight guidelines. They're not always safe for very young puppies or undersized dogs.
- Medical History: Dogs with neurological conditions or a history of seizures may experience adverse effects, so consultation with a vet is crucial.
- Concurrent Medications: Always inform your vet about other drugs or treatments your dog is receiving to avoid interactions.
NexGard Safety Profile
NexGard contains afoxolaner, which is generally well-tolerated in healthy dogs. Some dogs may experience side effects such as vomiting, dry skin, diarrhea, or lethargy. There have been rare reports of neurological signs such as seizures in predisposed dogs, so caution is advised for pets with a seizure history.
Bravecto Safety Profile
Bravecto contains fluralaner, another member of the isoxazoline class. Like NexGard, it has been associated with possible side effects, including gastrointestinal upset and neurological signs. However, Bravecto's advantage is the extended dosing interval, which means fewer treatments throughout the year.
Clinical Studies and FDA Insights
According to the U.S. Food and Drug Administration (FDA), both NexGard and Bravecto are approved and meet safety standards. In 2018, the FDA issued an alert regarding the entire isoxazoline class (including NexGard and Bravecto), warning of potential neurological adverse events. Yet, these incidents are considered rare, and the benefits outweigh the risks for most dogs.
When to Choose NexGard or Bravecto
- NexGard: Ideal for owners who prefer a monthly routine and want broad parasite protection via NexGard Plus.
- Bravecto: Suitable for pet owners seeking less frequent dosing. A good option for dogs in areas with high tick exposure or for homes with busy schedules.
The Role of the Veterinarian
Veterinary guidance is your best resource when choosing between NexGard and Bravecto. Your vet can assess your dog’s individual needs, medical history, and environmental exposure risk to prescribe the safest option.
Final Thoughts
When it comes to choosing between NexGard and Bravecto, both are considered safe and effective under correct usage. The decision ultimately depends on your dog’s individual health status, the convenience you seek, and guidance from your veterinarian. As with all medications, report any side effects to your vet and maintain ongoing protection to ensure your pet remains parasite-free throughout the year.





