How quickly does CAPSTAR work?
CAPSTAR works extremely fast. Adult fleas begin to die within only 30 minutes of administration. In 7 hours 100% of the adult fleas that were on your dog will be dead - leaving him/her flea-free and comfortable.

When do I use CAPSTAR?
You can use CAPSTAR on any day that fleas are bothering your dog.

Does CAPSTAR need to be given with food?
No. CAPSTAR can be given with or without food.