In light of the posts circulating about Simparica, Simparica Trio and Bravecto please refer to the article linked below from the FDA.
Correlation does not equal causation.
All medicines come with some potential risks and side effects and that is why their use should always be taken in consultation with a veterinarian. For the vast majority of pets, tick and flea medicines are safe, effective and help greatly reduce health risks that can come from parasites, such as anemia, Lyme disease and other infectious diseases.
https://www.fda.gov/…/fact-sheet-pet-owners-and…
