The Insulin sub-category is for discussion about insulin, regardless of the type of diabetes you or your loved-one with diabetes have.
Just today I saw new insulins. One was called Apidra (Glulisine), Levimir and the other, Tresiba. I have experience with Humalog and Fiasp. Are the first three insulins faster than Fiasp or Lyumjev?
There may be other advantages or disadvantages that I may want to be apprised of but the main characteristic is speed of action.