I use the Optium too, and I only recently acquired it. At the time I had a bit of hassle getting the ketone testing strips and it had been raided of all strips by the hospital team "for our pregnant ladies"! After writing down and underlining that I wanted beta ketone testing strips, the prescription came through as blood strips plus urine ketone strips so I sent it back. They had also removed the Aviva strips from the repeat. Then I got a phone call from a locum at the surgery asking why I had two meters, how often did I test a day, etc before it was put right. That's why I'm worried it will put a real spanner in the works if I ask for the Optium glucose strips now!