BCP PZI vs ProZinc

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DebH

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Since both have been out a while, does anyone have a feel for any differences between BCP PZI and ProZinc?
 
Hi Deb,

Generally ProZinc and PZI BCP are only available through your vet. (they are animal insulin not human like Lantus and Levemir). Most people here use ProZinc but some have used the BCP. Both seem to work about the same. There is so concern in that BCP is a compounded insulin and the batch can vary from order to order, but since you are watching the numbers anyway, I don't think it makes much difference. BCP used to give the first order free - not sure if they are still doing that. (your vet has to call the compounding pharmacy and place the order.). proZinc is usually something your vet stocks. In his office.

Hope that helps.
 
Thanks, that was useful. Both vets I've asked about ProZinc aren't prescribing it anymore, they have moved to Lantus or Levemir. BCP still has the form for free samples on their website and my vet faxed it in today to see if they still do it.
 
Deb,
Did they say why they weren't prescribing prozinc anymore? Just curious.
I used compounded pzi on Bob and it worked great for him. BCP is supposed to be one of the best places to get it from.

Carl
 
My vet went to a diabetes class for her continuing ed credit and said they were touting Lantus as the silver bullet for diabetes in cats, and PZI as a dinosaur.
 
I would say if the entire feline diabetes community is reflected by the percentages here, then yes, it seems more and more vets are prescribing lantus than any other insulin. It probably has to do with the existence of the studies done and the tight regulation protocol(s) used. There's a lot of scientific data around to back up the claim that Lantus works "best".

There used to be a "PZI" made by Idexx (I think), that was made from pig and cow pancreases. That was discontinued a few years ago. It was replaced by both compounded PZI, made by places like BCP and VPA and several other labs (It is cow-based) and by the creation of Prozinc. In tests against the old PZI that was being discontinued, Prozinc was found to work at least as well, and in some ways better. It's human rDNA insulin, specially engineered to be used on cats.

I am not aware of any studies that have been conducted that compare Lantus directly to Prozinc. There was at least one study that compared Lantus to Idexx PZI and Humulin. Lantus won that test significantly. All the Lantus cats went into remission, while only 3 of the PZI cats did. (each insulin was given to 8 cats). None of the Humulin kitties went off the juice.

The only study that I have seen using Prozinc was against the old Idexx PZI. It was found to have a longer duration (10-14 hours) and a later nadir. So it was determined to be a suitable substitute for the old PZI.

Last year, there was a big shortage of Prozinc, and it was very hard to find. But that shortage went away and now it is supposed to be readily available. Conversely, compounded PZI is supposed be to getting harder to find, and finding a reliable source of supply is more difficult.

Carl
 
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