Also known as regular short acting insulin, neutral insulin and soluble insulin, short acting insulin starts working within 30mins after injection and can last for up to six hours. These insulins are available over the counter. However, they are mostly synthetic human insulin and may not be effective as insulin analogs that are available with the prescriptions. Examples of short acting insulin are Humulin R, Novolin R, Velosulin R.
It is an insulin analog containing zinc-insulin crystals dissolved in a clear fluid. It can treat type1, type2, gestational diabetes, hyperosmolar hyperglycemic and diabetic ketoacidosis. The best time to take this is 30 mins before your meal