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Insulin Human for Diabetes: How It Works, Usage, Side-Effects, and Pharmacology

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Insulin human is a synthetic version of the pancreatic hormone that controls blood sugar levels and helps treat diabetes. Read further to know more.

Written by

Dr. Kinjal Shah

Medically reviewed by

Dr. Sugandh Garg

Published At March 13, 2024
Reviewed AtMarch 13, 2024

Overview:

A hormone called insulin is essential for controlling blood sugar or glucose levels. The pancreatic beta cells are the ones that create it. Elevated blood sugar levels are caused by insufficient Insulin or resistance to its effects in patients with diabetes.

Insulin, similar to the human body's insulin, is referred to as human insulin. The United States Food and Drug Administration (FDA) initially authorized Insulin for humans on October 7, 1982.

  • Rapid-Acting Insulin: After injection, this kind usually functions within 15 minutes. It lasts three to five hours, peaking in around thirty minutes to three hours. Insulin glulisine, Insulin aspart, and Insulin lispro are a few examples.

  • Short-Acting Insulin: Short-acting Insulin begins to function within 30 to 60 minutes, peaks in two to four hours, and lasts for around five to eight hours. One type of short-acting Insulin is regular Insulin.

  • Intermediate-Acting Insulin: It takes one to two hours to begin acting, four to twelve hours to reach its peak, and twelve to eighteen hours to finish. One kind of intermediate-acting Insulin is Neutral Protamine Hagedorn (NPH) Insulin.

  • Long-Acting Insulin: It can last up to 24 hours, has a gradual start, and lacks a noticeable peak. Insulin glargine and Insulin detemir are two examples.

  • Ultra-Long-Acting Insulin: This kind acts even longer, covering basal Insulin levels for a considerable amount of time—often longer than 24 hours. One kind of ultra-long-acting Insulin is Degludec.

Drug Group:

Insulin human is a member of the rapid-acting Insulin subclass of the family of pharmaceuticals known as antihyperglycemic medicines. These Insulins are short-acting, operating for just two to four hours after the fast start of action (within 15 to 30 minutes).

Available Doses and Dosage Forms:

Insulin human is offered in a range of forms and dosages to accommodate personal tastes and requirements. Typical choices consist of:

  • Vials: Offered in 100 units/mL (units per milliliter) strengths. To inject a vial, the required dosage must be drawn into a syringe.

  • Cartridges: Pre-filled cartridges are designed to fit into certain Insulin pens and have a capacity of 300 units.

  • Insulin Pens: Convenient and discrete injections are made possible by disposable pens that are pre-filled with cartridges and have an integrated needle.

  • Insulin Pumps: Insulin pumps are tiny, computerized devices that continually inject Insulin beneath the skin using a narrow line called a cannula. Pumps may be configured for various basal and bolus dosages and provide exact control over the supply of Insulin.

Human insulin dosage and type will vary depending on several variables, such as diabetes type,

blood sugar regulation, personal requirements, and inclinations

For Patients:

What Is Diabetes?

Diabetes is a long-term illness that affects how the body controls its levels of glucose or blood sugar. Glucose, which enters the circulation and powers the cells, is produced by the body when ingesting carbs. The pancreas secretes the hormone Insulin, which functions as a key to opening the cells and letting glucose in for energy.

When someone has diabetes, this procedure is not working properly:

  • Type 1 Diabetes: An autoimmune attack on the pancreas causes the body to generate insufficient amounts of Insulin.

  • Type 2 Diabetes: The body either stops making enough Insulin or develops an immunity to it.

Both kinds result in elevated blood sugar levels, which, if unchecked over time, can harm tissues and organs.

How Does Insulin Human Work?

One hormone that the pancreatic beta cells generate is Insulin. It is essential for controlling blood sugar levels because it makes glucose easier for cells to absorb and use as fuel. Diabetes is characterized by either inadequate Insulin production (type 1) or ineffective Insulin cellular response (type 2).

Insulin human Insulin is a synthetic version that functions similarly to the body's natural Insulin. When used as prescribed, it lowers blood sugar levels through:

  • Encouraging Cell Uptake of Glucose: Insulin encourages cells, especially muscle and adipose (fat) cells, to take up glucose.

  • Preventing the Production of Glucose: It prevents the liver from creating glucose and releasing it into the blood.

  • Encouraging Glycogen Synthesis: Insulin promotes the liver and muscle cells to store extra glucose as glycogen.

  • Reducing Glucose Absorption: It lessens the amount of glucose that is absorbed by the digestive system.

What Is the Dosage of Insulin Human?

Two or three times a day, before meals, is the normal dosage for Insulin humans. Based on the advice of the doctor and the patient's requirements, the dose and timing of Insulin humans should be customized. After receiving the injection of insulin, humans should eat within around half an hour.

  • For Insulin-treated individuals without significant Insulin resistance, the usual range of total daily Insulin required for maintenance treatment is 0.5 to 1.0 units/kg/day (units per kilogram per day).

  • On the other hand, it typically ranges from 0.7 to 1.0 units/kg/day in prepubertal children.

  • When an individual has Insulin resistance, such as during puberty or as a result of obesity, their daily Insulin demand may increase significantly.

  • Patients with type 2 diabetes typically start off on smaller doses, such as 0.2 to 0.4 units/kg/day.

  • Insulin human can be used to treat individuals with diabetes who are Insulin-resistant and require daily dosages of more than 200 units. This is because a large dose can be given subcutaneously in a manageable volume.

How Effective Is Insulin Human?

When used as directed by a doctor, Insulin human is a very efficient medicine for controlling diabetes. This is an analysis of its efficacy:

  • Blood Sugar Regulation: Research indicates that in individuals with type 1 and type 2 diabetes, human Insulin can successfully reduce blood sugar levels and achieve glycemic control. Its quick start of action makes it appropriate for controlling blood sugar rises that occur after meals, and its shorter half-life gives dosage flexibility.

  • Lower HbA1c: A long-term indicator of blood sugar management is HbA1c (hemoglobin A1C - glycosylated hemoglobin). Research demonstrates that human Insulin may considerably lower HbA1c levels, indicating better control of blood sugar levels overall. In order to avoid complications from diabetes, goal HbA1c values must be reached and maintained.

  • Life Quality: People with diabetes can greatly enhance their quality of life by effectively controlling their blood sugar levels using human Insulin.

However, it is crucial to remember that individuals may react differently to therapy, and things like nutrition, exercise, and drug compliance also influence effectiveness.

A healthcare professional's monitoring and changes are essential for the best outcomes.

What Are the Things to Inform the Doctor Before Taking the Drug?

  • If one has an allergy to any kind of Insulin or other medicine, let the doctor know.

  • Inform the physician about all of the vitamins, nutritional supplements, herbal items, prescription and over-the-counter drugs, and vitamins used or intended to be taken. The doctor might need to closely monitor for any negative effects or adjust the dosages of the medications.

  • Inform about previously experienced nerve damage from diabetes, heart failure, heart disease, thyroid, liver, kidney, adrenal (a little gland near the kidneys), or pituitary dysfunction.

  • Inform the physician if nursing a baby, intend to get pregnant, or are already pregnant.

  • Be sure to let the physician know about the use of human Insulin if undergoing surgery, including dental surgery.

  • Blood sugar levels may drop after drinking alcohol. Consult the physician about drinking alcohol safely while taking human Insulin.

  • Consult for advice on what to do in the event of sickness, unexpected stress, cross-country travel, or changes in activity and exercise schedules. The blood sugar levels and the quantity of human Insulin required may be impacted by these changes.

  • Consult about the frequency of blood sugar checks. Understand that hypoglycemia (low sugar in the blood) can impair the ability to accomplish activities like driving and operating machinery.

How Is Insulin Human Administered?

Subcutaneous injection, or injecting the Insulin under the skin, is the usual method of administering Insulin to humans. Usually, the injection is administered in the fatty area just below the skin's surface (belly, thigh, upper arm).

For subcutaneous Insulin injection, follow these general instructions:

  1. Use an alcohol swab to clean the injection site, then allow it to air dry.

  2. To draw up the recommended dosage of Insulin, use a syringe or an Insulin pen.

  3. Using a 90-degree angle, insert the needle into the subcutaneous tissue (or as instructed by the healthcare practitioner). Inject the Insulin, hold it for a little while, and then remove the needle.

  4. After each dosage, switch up the injection sites to avoid lipodystrophy (alterations in the fatty tissue).

What Are the Side Effects of Insulin Human?

Adverse effects may arise from the use of human Insulin. Notify the healthcare provider if any of the following symptoms are encountered, especially if they are persistent or severe:

  1. Redness, swelling, and itching at the injection site.

  2. Changes in skin texture, such as skin thickening (accumulation of fat) or small depressions in the skin (fat breakdown).

  3. Weight gain.

  4. Constipation.

Certain side effects could be serious; contact the doctor if any of the following symptoms are experienced:

  1. Rash and/or itching across the entire body.

  2. Shortness of breath.

  3. Wheezing (noisy breathing).

  4. Dizziness.

  5. Blurred vision.

  6. Rapid heartbeat.

  7. Excessive sweating.

  8. Difficulty breathing or swallowing.

  9. Weakness.

  10. Muscle cramps.

  11. Irregular heartbeat.

  12. Significant weight gain over a short period.

  13. Swelling of the arms, hands, feet, ankles, or lower legs.

Dietary Considerations:

When using Insulin in humans for diabetes treatment, maintaining a balanced diet is essential. These are important things to keep in mind:

  1. Give priority to fruits, vegetables, whole grains, lean meats, and healthy fats when it comes to eating full, unprocessed meals. These meals help control blood sugar levels by supplying fiber and steady energy.

  2. Minimize refined carbs since they can quickly raise blood sugar levels. Sugary beverages, white bread, and pastries are examples. Choose healthier options, such as water, brown rice, and whole-wheat bread.

  3. Pay attention to portion sizes. By managing portion sizes, one can make sure about the recommended amount of carbohydrate intake and prevent blood sugar swings.

  4. Think about the glycemic index and how food items are ranked according to how they affect blood sugar levels. For more consistent blood sugar regulation, go for low-glycemic foods like lentils, beans, and non-starchy veggies.

  5. Eating on a regular schedule encourages stable blood sugar levels and helps the body anticipate Insulin requirements.

Remember, for individualized nutritional advice based on the unique needs and Insulin regimen, speak with a qualified dietitian.

Missed Dose:

Hyperglycemia, or elevated blood sugar, can result from skipping an Insulin dosage. This is what one should do:

If it is discovered that a dosage has been missed, take it promptly if it is within a few hours after the missed time. However, refrain from taking two doses simultaneously. If a substantial period has elapsed since the missed dosage, omit the missed dose and proceed with the next scheduled dose as usual. Consult with a physician for further guidance. Place heightened focus on blood sugar levels by increasing the frequency of blood sugar checks and adjusting Insulin dosage as instructed by a physician if deemed necessary. Refrain from altering or skipping an Insulin dosage without prior consultation with a physician.

Overdose:

Hypoglycemia (low blood sugar) can result from an Insulin overdose and present a medical emergency. Hypoglycemia can cause dizziness, trembling, perspiration, and, in extreme situations, unconsciousness. Consuming a fast-acting carbohydrate to elevate blood sugar levels, such as glucose tablets or sugary drinks, may be part of the treatment.

Storage

  • Storage in the Refrigerator: Insulin pens or vials that have not been opened should normally be kept between 36°F (degrees Fahrenheit) and 46°F (two degrees Celsius and eight degrees Celsius (°C). Do not freeze the Insulin.

  • Room Temperature: Depending on the kind of Insulin, it can be stored at room temperature (up to 77°F or 25°C) for a predetermined amount of time, generally 28 days. For information unique to the Insulin product, consult the manufacturer's instructions.

  • Steer Clear of Sunlight and Heat: Insulin has to be shielded from strong sunlight and extreme heat. Never leave it out in the sun or a hot car for a lengthy amount of time.

For Doctors:

Indication:

In diabetics, Insulin is used to control blood sugar levels and make sure the body uses glucose for energy efficiently. Diabetes mellitus is treated using human Insulin (type 1 and type 2).

Dose:

Before meals, insulin is often administered two or three times per day.

After receiving the injection of insulin, humans should eat within around half an hour.

  • For Insulin-treated individuals without significant Insulin resistance, the usual range of total daily Insulin required for maintenance treatment is 0.5 to 1.0 units/kg/day.

  • It typically ranges from 0.7 to 1.0 units/kg/day in prepubertal children; however, it can drop significantly during the partial remission phase.

  • When an individual has Insulin resistance, such as during puberty or as a result of obesity, their daily Insulin demand may increase significantly. Patients with type 2 diabetes are frequently started on lesser doses, such as 0.2 to 0.4 units/kg/day.

  • Insulin human can be used to treat individuals with diabetes who are Insulin-resistant and require daily dosages of more than 200 units. This is because a large dose can be given subcutaneously in a manageable volume.

Dosing Considerations:

  • Type of Insulin: The start, peak, and duration of action of various kinds of Insulin vary. Dosing considerations are influenced by the kind of Insulin used.
  • Personalized Treatment: Insulin doses are frequently adjusted to meet the unique requirements of each patient, taking into account variables including age, weight, degree of activity, and general health.

  • Blood Sugar Testing: Healthcare professionals can modify Insulin dosages to maintain ideal control by routinely testing blood sugar levels.

  • Meal Time and Content: The time and content of meals can affect how much Insulin is taken. For example, rapid-acting Insulin can be taken either just before or right after eating.

  • Modifications to Health Status: Modifications to health, such as illness or surgery, may require alterations to Insulin doses.

  • Insulin Sensitivity: Individuals may differ in how sensitive they are to Insulin, which might affect how much is required to manage blood sugar effectively.

What Are the Pharmacological Aspects of Insulin Human?

  • Pharmacodynamics: The main pharmacodynamic action of Insulin human is a reduction in blood glucose levels. Insulin does this by making it easier for cells, especially muscle and fat tissue, to absorb glucose. Moreover, it lessens the amount of glucose absorbed from the digestive system, increases the synthesis of glycogen, and limits the liver's ability to produce glucose. For people with diabetes, Insulin human pharmacodynamic activities are essential for controlling blood sugar levels.

  • Mechanism of Action: Target cells, especially those in the liver, muscles, and fat areas, have specialized insulin receptors that insulin humans attach to. This binding sets off a series of signaling pathways that help cells absorb glucose and eventually reduce blood sugar levels.

  • Impacts on Metabolism: Insulin facilitates the absorption of glucose and its transformation into glycogen, which is stored in the muscles and liver. It also prevents the liver from producing glucose. Insulin promotes protein synthesis and prevents protein degradation in the metabolism of proteins. Insulin facilitates fatty acid production and storage in adipose tissue.
  • Pharmacokinetics

  1. Absorption: Rapid absorption can be achieved via subcutaneous injection; peak absorption occurs in one to two hours for rapid-acting drugs and four to eight hours for intermediate-acting drugs.

  2. Distribution: Insulin mostly travels to the target tissues and extracellular fluid after binding to plasma proteins.

  3. Metabolism: The liver and kidneys are the main sites of enzyme-mediated Insulin breakdown.

  4. Elimination: Depending on the kind, an Insulin human has a different half-life (30 to 90 minutes for rapid-acting, four to 16 hours for intermediate-acting).

Toxicity:

Insulin human, though normally safe when taken as directed, can be hazardous in two major ways:

  1. The most frequent and possibly harmful adverse effect is hypoglycemia, which happens when an excessive amount of Insulin drastically reduces blood sugar levels. Sweating, lightheadedness, shakiness, nausea, disorientation, blurred vision, or convulsions are some of the symptoms. Severe hypoglycemia may result in death or a coma.

  2. Although rare, allergic responses have the potential to be fatal. Rash, itching, swelling, trouble breathing, and anaphylaxis are some symptoms. Get medical help right away if having any allergic reactions.

Clinical Studies:

Restored the metabolism of carbohydrates, proteins, and lipids by giving Insulin replacements to patients with diabetes in cases when their body was not producing enough Insulin.

  1. When administered subcutaneously, short-acting human Insulin begins to function after about 30 minutes, has its peak action after about three hours, and ends after about eight hours. When administered intravenously, the effects start to take effect sooner (10 to 15 minutes) and end after around four hours. There may be individual differences in how Insulin acts.

  2. Subcutaneous Insulin administration resulted in improved glycohemoglobin levels in diabetic individuals after 48 months of treatment, according to clinical research. Patients with type 1 diabetes who received intravenous medication reached near normoglycemia in six hours, on average, taking 161 minutes. A limited number of individuals had hypoglycemia and diabetic ketoacidosis during the research.

What Are the Contraindications of Insulin Human?

Although Insulin human is usually safe for the majority of diabetics, there are several circumstances in which it may not be appropriate:

  1. Insulin hypersensitivity.

  2. Diabetic ketoacidosis (DKA).

  3. Uncontrolled hypoglycemia.

Warnings and Precautions:

  1. Hypoglycemia: When blood sugar levels go too low, hypoglycemia occurs. Sweating, lightheadedness, shakiness, nausea, disorientation, blurred vision, or convulsions are some of the symptoms. Severe hypoglycemia may result in death or a coma. Regularly check the blood sugar levels and make any necessary adjustments to the Insulin dosage or diet plan.

  2. Allergic Reactions: Reactions to Insulin human that are allergic are uncommon but might include rash, itching, swelling, trouble breathing, and anaphylaxis. If any allergy symptoms are encountered, get medical help.

  3. Reactions at the Injection Site: The patient has pain, swelling, redness, or itching there. Usually, these responses go away independently, but if they continue or worsen, see the doctor.

  4. Dosage Errors: Taking too much or too little Insulin might be harmful. Never alter the dose without first speaking with the physician.

  5. Additional Health Issues: Any additional medical issues should be disclosed to the doctor since some may require modification of the Insulin regimen.

What Are the Drug Interactions of Insulin Human?

Human insulin interacts with a variety of drugs, which may have an impact on blood sugar levels. Here are a few instances:

  • Blood-Sugar Lowering Drugs: Combining Insulin humans with other blood-sugar-lowering drugs may make hypoglycemia more likely. Sulfonylureas, oral antidiabetic drugs, and GLP-1 receptor agonists are a few examples.

  • Medication That Raises Blood Sugar: Certain drugs can boost blood sugar levels, negating the benefits of Insulin in humans. Corticosteroids, some diuretics, and thyroid drugs are a few examples.

  • Beta-Blockers: These drugs have the potential to conceal hypoglycemia's symptoms, making it more difficult to diagnose and manage.

  • Other Drugs: Insulin humans may interact with many other drugs. Never withhold information about any drugs used by the chemist or doctor.

Specific Considerations:

  • Considerations for Pregnancy: Insulin human are classified as category B pregnant, meaning that there may be a preexisting risk of miscarriage, birth abnormalities, or other unfavorable consequences associated with all pregnancies. When glucose is well controlled, the risk falls, but it rises when hyperglycemia occurs. Before and during pregnancy, it is critical to maintain optimal diabetes care, which includes food, exercise, and monitored Insulin regimes.

  • Delivery and Labor: Diabetes patients must have careful glucose monitoring and treatment throughout labor and delivery.

  • Nursing Mothers: There is endogenous Insulin in human milk. Insulin that is consumed orally is broken down in the digestive system. Human milk consumption has not been linked to any negative effects in infants exposed to Insulin.

  • Kidney or Liver Illness: Diseases of the kidneys or liver might alter how the body uses Insulin, requiring a change in the amount.

  • Surgery or Disease: Modifications in physical activity or disease may impact the blood sugar levels and necessitate Insulin modification.

Source Article IclonSourcesSource Article Arrow
Dr. Sugandh Garg
Dr. Sugandh Garg

Internal Medicine

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