1 month supply of meds from my vet - £83.40.
1 month supply of same meds from online supplier = £39.00
I had to get a prescription from our vet which cost £15, but that can be used for 4 orders, so the real cost of buying online works out at £42.75 a month.
I appreciate that the local vets need to apply a markup - of course, and we may be skipping a middle man distributor by buying on-line, but a difference of that magnitude appears to be ripping it for me.