Thanks elaine. I wonder why Frontline is not a POM anymore.
I think it is the ordinary Frontline that you can buy without prescription but Frontline Combo (ie the one that actually works) is still prescription only as far as I know 
That's what I thought to. I once looked at Frontline in PAH and it was different to what we get from the vet.
Edited to add: being able to buy POM (or fakes) online worries me greatly. Could we perhaps have some sort of sticky regarding this? Just a though. Perhaps useful to some visiting the site.