Dog owners choose Credelio tick and flea treatment for its fast-acting protection compared to other tick and flea treatments. In fact, Credelio kills ticks** faster�� than Simparica Trio and Nexgard. This Credelio can be given to dogs or puppies weighing between 25.1 and 50.0 lbs. that are at least 8 weeks of age. Available for dogs as small as 4.4 lbs. Talk with your veterinarian about which dose is right for your pups. **Amblyomma americanum (lone star tick) �� Based on the time to statistical significance vs. control in a study on Day 21 and Day 28 for reinfestations Credelio is a trademark of Elanco or its affiliates. **We directly source prescription medications from manufacturers and wholesale distributors registered with the FDA and licensed by applicable state boards. Guaranteed genuine, and where applicable, backed by the manufacturer.**