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A variety of insulin delivery equipment is available such as syringes, needles, insulin delivery pens, and insulin pumps.

Your doctor or diabetes nurse teacher will teach you how, where, when, and how much to inject insulin, and how to store it safely.

Your doctor determines which insulin is best for your diabetes, what type of insulin you need, and sometimes it takes time to find it. Now Many forms of insulin treat diabetes. They are grouped based on how fast they start working and how long their effect lasts.

The five types of insulin are-

• Rapid-acting insulin
• Regular or short-acting insulin
• Intermediate-acting insulin
• Long-acting insulin
• Ultra-long-acting insulin

Rapid-acting insulin

Rapid-acting insulin starts functioning between 15 and 20 minutes after injection. Its effect lasts between one and three hours after injection and may last up to five hours. This type of insulin is given before meals because it functions more rapidly after the meal, similar to the body's natural insulin, reducing the risk of low blood sugar. When you use this type of insulin, you should eat it immediately after taking insulin.

There are some rapid-acting insulin with their brand name –


• Insulin Lispro (Humalog)
• Insulin Aspart (Novolog)
• Insulin Glulisine (Apidra)

Regular or short-acting insulin

Short-acting insulin takes longer to start working than rapid-acting insulin. Short-acting insulin starts functioning between 30 and 40 minutes after injection. Therefore, you should apply this injection 30 minutes before meals. Its effect is greater between 2 to 6 hours after injection and the duration lasts for 6 to 8 hours. The larger the regular dose, the faster the action.

Some Short-acting insulins are-


• Regular (R) or Novolin
• Velosulin (for use in the insulin pump)
• Actrapid

Intermediate-acting insulin

Intermediate-acting insulin needs to be mixed well. These insulin begin to function approximately 60 to 90 minutes after injection, peaking between 4 and 12 hours and lasting between 16 and 24 hours.
It is used to control blood sugar throughout the night, during fasting, and between meals. This insulin is mostly applied before bedtime.

Some Intermediate-acting insulins are –

• Humulin® NPH (human isophane insulin)
• Protaphane® (human isophane insulin)

Long-acting Insulin

This injection is slowly absorbed, has a minimal peak effect, and has a stable plateau effect that lasts most of the day. And these injections serve the needs of the entire day. You have to give these injections only once, and this will help keep your blood sugar under control for 24 hours. You can inject it in the morning or before bedtime.

Some long-acting insulins are-

• Levemir® (detemir insulin)
• Lantus® (glargine insulin)
• Toujeo (glargine insulin)

Ultra-long-acting insulin

The main difference between long-acting insulin and ultra-long-acting insulin (Tresiba, Toujeo) is that there is no peak of ultra-long-acting insulin. This means that there is no time for insulin to have maximum effect on your body, reducing your risk of low blood sugar.

Some ultra long acting insulins are

• Tresiba (insulin degludec)
• Toujeo (insulin glargine)

In addition to these, there is another method of delivering insulin called mixed insulin that consists of a pre-mixed combination of intermediate-acting insulin as well as very fast-acting or short-acting insulin.

• rapid-acting and intermediate-acting insulin-

  • Ryzodeg 70:30 (70% long acting Degludec, 30% rapid Aspart)
  • NovoMix® 30 (30% rapid, 70% intermediate Protaphane)
  • Humalog® Mix 25 (25% rapid, 75% intermediate Humulin NPH)
  • Humalog® Mix 50 (50% rapid, 50% intermediate Humulin NPH)

• short-acting and intermediate-acting insulin

  • Mixtard® 30/70 (30% short, 70% intermediate Protaphane)
  • Mixtard® 50/50 (50% short, 50% intermediate Protaphane)
  • Humulin® 30/70 (30% short, 70% intermediate Humulin NPH)

In this way, we can take insulin, but keep in mind that it is to take insulin injections only on the advice of doctors.