Hi all, just thought I'd drop in to say from us and our Dusty cat. Dusty's been recently diagnosed, and our Vet immediately recommended Prozinc (rather than Caninsulin), which as I understand it is a good thing, if somewhat unusual in the UK! Anyway the vet themselves have only recently started prescribing Prozinc, and all their previous / existing diabetic cats have been left on caninsulin (since they are apparently stable on it). Anyway, the 'downshot' of this is that the vet doesn't appear to be very familiar with Prozinc, so this forum is going to be all the more valuable as a resource for us I think! We've also recently purchased a glucometer for home use (as Dusty is so much more comfortable here) so that we can do our own curves; we opted for the AlphaTrak2 , so please bear that in mind if you look at our data, since obviously it is animal-meter data, not human-meter data. A couple of queries I do have about Prozinc use, if anyone has any info? How much variation do you expect to see on a curve? Everyone refers to them as a 'curve' but I don't know how 'curvy' is normal? Effects of increasing the dose I presume that increasing the dose brings the levels down (kinda the point!), but does it effectively lower the curve down to a new level (whilst remaining the same shape), or does it start to flatten the curve? We are seeing numbers from ~700 (34 mmol) dropping to ~460 (26 mmol) which seems like quite a "curvy curve" to me? (I am aware that those levels are also WAY too high, but we are still "finding the dose"). Also, how strict is the "life time" of the Prozinc? I know it has an expiry date, but it also states on the bottle that it should be discarded 60 days after breaching the seal. At 1 IU per injection, twice a day, our 10ml U40 bottle (400 units) has 200 days worth of insulin in it. Do we really have to use it for 60 days then throw away 140 days worth of insulin that is still in the bottle?? (I realise that this will change if/when her dose changes, but still, how strict is that "60 day" limit? Thanks all, and "hi" from us all!