Thank you.There has been a shortage going back about 3 weeks but local NHS was assured it was back in stock. It is available again locally. Your GP practice can contact the pharmaceutical advisors at local CCG who can chase the supplier for you.
I will also ask again locally as I'm about to get a new script.
Managed to get some from a small chemist in my local town. Thank you for your response.I just picked up 15 cartridges today, doesn't seem to be a problem here.