How long does Frontline Nexgard last on dogs? - briefly
Frontline Nexgard typically provides protection against fleas and ticks for up to one month after administration in dogs. Re-administration is required monthly to maintain continuous protection.
How long does Frontline Nexgard last on dogs? - in detail
Frontline and Nexgard are both popular flea and tick treatments for dogs, but they differ in their active ingredients and duration of effectiveness.
Frontline (fipronil) is designed to provide month-long protection against fleas and ticks once applied. It works by inhibiting the nervous system of the parasites, effectively killing them within 24 hours of contact. This long-lasting effect is due to the slow release of fipronil from the dog's skin over time. However, it's important to note that the efficacy can be affected by factors such as bathing or swimming, which can reduce the product's longevity.
Nexgard (afoxolaner), on the other hand, is an oral flea and tick treatment that provides a full month of protection with a single dose. Afoxolaner works by inhibiting the parasites' nervous system as well, but it also has an additional mode of action: it causes uncontrolled activity in the muscles of the parasite, leading to its death. Nexgard is highly effective against both fleas and ticks, including the brown dog tick, which can be resistant to other treatments. Unlike Frontline, Nexgard's efficacy is not affected by water exposure, making it a suitable choice for dogs that swim or are bathed frequently.
In summary, both Frontline and Nexgard provide month-long protection against fleas and ticks in dogs. The choice between the two depends on factors such as ease of administration (Nexgard is oral while Frontline is topical), water exposure, and specific parasite resistance issues. It's always best to consult with a veterinarian for personalized advice tailored to your dog's needs.