ok haveing decided I am going to have to use the above for prevention I have now looked at the costs  eeeekkk !where is the cheapest to buy please ?
I have 1 dog of 4kg ,1 of 18kg and 1 of 46 kg looks like I shall have to buy all three sizes .
  

Don't forget it is prescription only! My vet charges about £44 for 6 mnths medium size (4-10kg) and £46 for the 6 mnths large (10-25 kg) He charges £15 for a prescription

didnt even realise it was pom ! shows how much I know. As reikiangel says it was only when I started looking in to things more carefully that I got so confused and have started to worry that mine could be at risk :(
You walk in much the same places as me in fact its urprising I havnt seen a frenchie Thanks for the prices will have to ask my vet what he charges

Animed Direct is one of the cheapest I've seen for advocate http://www.animeddirect.co.uk/

Thank you will have to see what price a prescription is. Nice websit some are so fiddly I get annoyed :)
Having just used milbemax I now have to decide when I can use advocate or another flea treatment. omg I wish I hadnt done any research !!

My vets charge £9 for a prescription but strictly speaking I think they should charge for each dog. Fortunately mine are all the same weight so I can get away with just one. The large dog 6 pack is twice the price at my vets though. I'm planning to use milbemax as well but will have to check with the vet how long to leave between. I think last time they said just a week or two but can't remember exactly.

If the dogs will eat sardines, mackarel,tuna just mix Panacure into in that.