Below are links with reading and resources for using PZI insulin with your diabetic kitty. PZI info - Petdiabetes Wiki PZI info - FelineDiabetes.com PZI Source List - US, Canada & England Start Low, Go Slow approach Supplemental Techniques ProZinc™ - manufacturer's web site ---------------------- The below are ONLY for if you are currently using U-100 syringes or if you intend to use U-100 syringes with a U-40 strength insulin. U-100 syringes are not required for the use of PZI. However, if you feel up to getting the conversion correct 100% of the time, the use of U-100 syringes with U-40 insulin can allow for smaller, more consistent dosing gradients. If you are unsure which syringes you are currently using, U-100 syringes have an ORANGE cap - U-40 syringes have a RED cap. Make sure you know which type of syringe and what strength insulin you are using before you start dosing. Without the proper conversion, use of the wrong syringe with the wrong strength insulin can potentially result in putting your kitty into hypoglycemia or potentially even death. You have been warned: that said, many use U-100 syringes with U-40 PZI insulin successfully. Syringe conversion chart (U-40 and U-100) - print out and post somewhere obvious U-100 31 Gauge 3/10cc 5/16 inch Needle 1/2 Unit Markings (GNP Brand) syringes at hocks - example of what type and where to purchase. If you do purchase from Hock's, you can help support this site by clicking on the link at the top of this board and then entering your shopping cart items.