Zinc Insulin (PZI) is another insulin formulation, just
like regular, NPH, lente, or ultralente.
PZI was produced by Eli Lilly, and was often the first-choice insulin for
treatment of diabetes in cats. It is now produced by specialty veterinary
drug manufacturers, and is also available from compounders - pharmacists
who have the ability to prepare special prescriptions.
PZI is available from three species of insulin:
- human recombinant
- beef/pork combination
PZI comes in different
- U-40, U-50, and U-100 are all commonly
- Other strengths can also be ordered.
- Choose a supplier that has experience
sure to specify which species of insulin you want.
sure you know what strength the insulin is and how to give your pet the
proper dose. Some companies
send special syringes that are to be used with the strength of insulin you
order. You can use a U-100 syringe with a U-40 or U-50
insulin, but you must do a little math and fill the syringe correctly. Here is a conversion chart for using
U-40 PZI and U-100 syringes.
Your vet will have to place the first order of PZI. Then, depending the
company you are ordering from, either you or your vet can call for
PZI is more expensive than other insulins. But many owners are
willing to pay the extra price if PZI is the insulin that
controls their pet's diabetes the most effectively. Many owners of
diabetic cats who have not had success regulating their pet's diabetes
with other insulins have tried PZI. PZI is just like any other
insulin - it may or may not be the best insulin for controlling your pet's
diabetes. If the insulins you have tried are not adequately controlling
your pet's diabetes, be sure to discuss the option of using PZI with your
Visit the Professional
Centers of America or contact them at (800) 331-2498 for a referral to a compounder in your
area. Use caution in making sure the compounder has
experience making PZI. It is probably better to choose a supplier that has
experience, even if they are not in your state. Shipping is not a problem
- the insulin can be boxed with a cold pack.
Updated February 2008
Copyright. All rights reserved.
This site is for information purposes only. Please consult