Nexgard is a veterinary medication used to protect dogs from fleas and ticks. Administered as a monthly chewable tablet, it works by targeting the nervous system of these parasites, effectively eliminating them and preventing infestations. Nexgard is designed to begin working quickly, often killing fleas within hours of ingestion and controlling tick populations before they can transmit diseases. For dog owners in the US, Nexgard is recognized for its convenience and ease of administration, offering an alternative to topical treatments. Regular monthly use ensures continuous protection, reducing the risk of flea- and tick-related health issues and supporting overall canine well-being.