How long is frontline good for?

Answer 1

I worked for a Vet some years ago. Of course, Frontline's packaging says it is a ONE MONTH dose. And since the packaging notes that, then the Vet must tell the client that it is a one month dose and needs to be reapplied each month. However - the Vet told us technicians that it really works for up to 3 months! but if you live in an area where fleas are more prevalent, then you would want to apply every 6-8 weeks.

I live on the Mid - East Coast. So in the winter I apply every 3 months, and in the spring-fall, every 6-8 weeks.

Answer 2

In general a dose of Frontline should have its effect within 24 hours. It is not an instant-kill drug; if your cat has fleas that you want dead now, you should ask your veterinarian for a CapStar dose for your cat (and probably assistance in giving the dose, as it's a pill).

Answer 3

according to the reps at frontline, it is good for appoximately seven years.