Learn more about rapid-acting insulin and the new FDA approval of Merilog, similar to Novolog. ? What is Fast Acting Insulin? Fast-acting insulin is a type of insulin you take before meals to stop your sugar from going too high when you eat carbohydrates. Fast-acting insulin is sometimes also known as bolus insulin or mealtime insulin. There are 3 different types of Fast-acting insulin: Insulin aspart (Fiasp, NovoRapid and Trurapi) Insulin glulisine (Apidra) Insulin lispro (Admelog, Humalog and Lyumjev) Read more@ https://www.iowadiabetes.com/2025/04/25/merilog-new-fast-acting-insulin/