Section: Parasitic Diseases

Nexgard Flea Treatment For Dogs

Fleas are more than a nuisance. They cause itching, allergic reactions, and can transmit tapeworms. As a pet owner, finding a reliable, easy to use flea control is a top priority. Nexgard flea treatment for dogs has become a popular choice due to its oral, beef flavored chew that dogs actually enjoy. This article provides a clinical yet accessible guide to understanding Nexgard, how it works, and how to use it safely.

Quick Q&A: Common Questions

Question: Can my dog still get fleas after taking Nexgard?

Answer: Yes, your dog can still be bitten by fleas after taking Nexgard. However, the medication begins killing fleas within 30 minutes to 4 hours of attachment, preventing an infestation from taking hold. You may see a few fleas on your dog, but they will die before they can lay eggs.

What Is Nexgard and How Does It Work?

Nexgard is an oral prescription medication for dogs that contains the active ingredient afoxolaner. It belongs to the isoxazoline class of compounds. When your dog chews the tasty tablet, afoxolaner enters the bloodstream. When a flea or tick bites your dog, it ingests the drug, which then overstimulates the nervous system of the parasite, leading to rapid death.

Nexgard is indicated for the prevention and treatment of flea infestations (Ctenocephalides felis) and the treatment and control of several tick species, including the American dog tick, black-legged tick, and Lone Star tick. It is approved for dogs and puppies 8 weeks of age or older, weighing at least 4 pounds.

Why Choose an Oral Treatment?

Many pet owners prefer oral flea treatments like Nexgard over topical spot-ons for several reasons. There is no greasy residue, no odor, and no risk of the medication washing off if your dog swims or is bathed. The beef flavored chew makes administration simple, even for picky eaters. Nexgard also starts working quickly, killing fleas before they can cause significant irritation.

Safety and Side Effects

Nexgard is generally very safe when used as directed. The most common side effects are mild and temporary, including vomiting, dry skin, diarrhea, or lethargy. These effects typically resolve without intervention.

A rare but important concern with isoxazoline drugs is the potential for neurologic adverse reactions. Some dogs, especially those with a history of seizures or epilepsy, may experience muscle tremors, ataxia (loss of coordination), or seizures. The FDA has issued a warning about this class of drugs. Always inform your veterinarian if your dog has a history of seizures before starting Nexgard.

What to Do If Side Effects Occur

If your dog vomits within a few hours of taking Nexgard, the dose may not have been fully absorbed. Contact your veterinarian. Do not give a second dose without veterinary guidance. For mild side effects like temporary lethargy or loose stool, monitor your dog closely. If symptoms persist or worsen, seek veterinary care.

Proper Administration and Dosing

Nexgard is given once a month. The chew can be offered by hand or mixed with a small amount of food. Ensure your dog consumes the entire dose. If your dog spits it out or vomits shortly after, do not assume it was absorbed.

Dosing is based on your dog's weight. The available sizes are:

  • 4.1 to 10 pounds
  • 10.1 to 24 pounds
  • 24.1 to 60 pounds
  • 60.1 to 121 pounds

For dogs over 121 pounds, combine appropriate sizes. Do not split tablets.

What to Expect at the Vet

Before prescribing Nexgard, your veterinarian will perform a thorough examination and review your dog's medical history. They will weigh your dog to ensure the correct dose. If your dog has a history of seizures, your vet may recommend an alternative product. Your vet will also discuss the importance of year-round flea prevention, as fleas can survive indoors during winter months.

Home Care and Prevention

To maximize Nexgard's effectiveness, treat all pets in the household. Fleas can jump from one animal to another. Wash your dog's bedding in hot water weekly and vacuum carpets and furniture frequently. In severe infestations, you may need to use an environmental flea spray or fogger. Consult your veterinarian for a comprehensive plan.

Conclusion

Nexgard flea treatment for dogs offers a convenient, highly effective, and well-tolerated option for flea and tick control. Its oral formulation eliminates the mess of topical treatments and provides rapid relief from biting parasites. As with any medication, consult your veterinarian to ensure it is the right choice for your dog, especially if your pet has a history of seizures. With proper monthly use, Nexgard can help keep your dog comfortable, healthy, and flea free all year long.