Simparica Kills Fleas1
- Sarolaner starts killing fleas within 3 hours and keeps going strong for 35 days without losing effectiveness at the end of the month.
- Simparica provides rapid relief for pets with existing flea infestations. Even dogs with flea allergies have shown improvement with Simparica.
- Simparica also prevents and controls home infestations, killing fleas before they can lay eggs.