Pet medicine cheaper online

i'm sure many of you know this but, for those who don't.  If your pet requires expensive medicines it is usually much cheaper to buy them online.  There are a number of suppliers to choose from.  They won't send anything without a vet's prescription and that will cost you a smallish amount ( ours was £7 five years ago) to get the vet to sign it.  The prescription should be open-ended and you send it off to the supplier.  Once they get it they'll supply the pills (whatever) as you request.  Our dog was on long term medications and buying online reduced the cost by about 50%.