Bravecto 1400mg is a prescription flea and tick treatment designed specifically for very large dogs weighing 40–56 kg. This single chewable tablet provides up to 12 weeks of continuous protection against fleas, ticks, and mites in one convenient dose. The tablet works by killing adult fleas within 2 hours and ticks within 12 hours of administration. It also prevents flea infestations and controls tick populations throughout the treatment period, reducing the need for monthly applications. Administer the tablet with food for optimal absorption. Consult your veterinarian before use to ensure this product is appropriate for your dog's health status and to obtain the required prescription.