Question: what is the difference between how rapid-acting and long-acting insulin are used?
Answer: Because it takes a longer time to start working, compared to the rapid-acting insulin, it is used about 30 to 60 minutes before a meal to control the blood sugar levels. Regular human insulin begins to work in 30 to 60 minutes. Its peak effect occurs in 2 to 3 hours, and it lasts for about 5 to 7 hours.