An insulin zinc hexamer<unk>  (from Italian<unk> , "slow"; also called insulin zinc suspension) was an intermediate duration insulin that is no longer used in humans. The onset of<unk>  is one to two hours after the dose is administered, and the peak effect is approximately 8 to 12 hours after administration, with some effects lasting over 24 hours.<unk>  products, along with other insulin analogs in the same family, were discontinued by their manufacturers in the mid 2000s, and are no longer permitted to be marketed for use in humans in the US. This was in part because health care providers began to favor more predictable forms of insulin, such as recombinant NPH insulin.
Lente insulin
Insulin aspart
Regular insulin
Insulin detemir
Insulin glulisine
Ultralente insulin
Insulin glargine
Insulin degludec