Admelog

Quick links to important sections

Admelog

Selected form

Treatment option: Diabetes Mellitus

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Admelog

What is Admelog?

Admelog is an injectable, rapid-acting insulin analog used to help manage blood sugar levels in individuals with diabetes mellitus. It contains insulin lispro, which is a man-made version of the insulin naturally produced by the body.

How Admelog Works

Insulin is a hormone that allows cells throughout the body to absorb glucose from the bloodstream to be used for energy. In people with diabetes, the body either does not produce enough insulin or cannot use it effectively. Admelog works by replacing the insulin the body is missing.

As a rapid-acting insulin, Admelog is designed to start working quickly after administration. Its primary role is to mimic the natural insulin spike that occurs during or immediately after eating. This helps to process the carbohydrates consumed in a meal and prevents blood sugar levels from rising too high in the post-meal period.

Key Characteristics

  • Rapid Onset: It begins to lower blood sugar shortly after injection.
  • Short Duration: It stays active in the body for a shorter period compared to intermediate-acting or long-acting insulins.
  • Biological Similarity: Admelog is considered a follow-on biologic (or biosimilar in some contexts), meaning it is highly similar to an already-established rapid-acting insulin lispro product.

Purpose in Diabetes Management

Admelog is used for both type 1 diabetes, where the body produces no insulin, and type 2 diabetes, where the body's insulin production or response is insufficient. Because of its fast-acting nature, it is typically used as part of a comprehensive management plan that may also include a longer-acting insulin to provide a steady level of background insulin coverage throughout the day and night.

What side effects are possible with Admelog?

Possible Side Effects and Safety Information

The safety profile of Admelog (Insulin lispro) is established by regulatory authorities and centers on effects related to its primary function and administration. The most frequent adverse reaction documented is hypoglycemia (low blood sugar), which is officially classified as a Very Common effect (ge 1/10).

Documented Adverse Reactions

The most common risks are classified based on the systems involved:

  • Metabolism and Nutrition Disorders: Hypoglycemia and weight gain are documented effects.
  • Skin and Subcutaneous Tissue Disorders: Injection site reactions (redness, swelling, or itching) are common. Long-term administration can lead to lipodystrophy (fat tissue changes) and localized cutaneous amyloidosis at injection sites.
  • Immune System Disorders: Localized allergic reactions are common, while systemic allergic reactions are classified as a rare event.

Serious Safety Considerations

The official labeling highlights several serious adverse reactions:

  • Severe Hypoglycemia is the primary serious risk, which may lead to loss of consciousness or death.
  • Hypokalemia (low blood potassium) is a potential serious risk related to insulin’s effect on electrolyte balance.
  • Fluid retention and potential worsening or precipitation of heart failure is noted when Insulin lispro is used concomitantly with Thiazolidinediones (TZDs).

Safety Contexts

Certain regulatory safety statements address specific populations and contexts:

  • Renal or Hepatic Impairment: Patients with kidney or liver dysfunction are noted to have an increased risk of hypoglycemia.
  • Time-Related Patterns: Rapid improvement in glucose control is associated with transient worsening of diabetic retinopathy or peripheral neuropathy. The formation of lipodystrophy is linked to long-term, non-rotated injections.
  • Restrictions: Admelog is officially contraindicated for use during active episodes of hypoglycemia or in individuals with known hypersensitivity to the ingredients.

Overdose and Emergency Response

Admelog (insulin lispro) overdose primarily leads to hypoglycemia (low blood sugar), which can range from mild to severe and, if untreated, can become life-threatening. An overdose may occur if you inject too much insulin, skip a meal, or engage in unaccustomed physical activity.

Symptoms of Hypoglycemia

Symptoms of low blood sugar are categorized by severity:

Mild to Moderate Symptoms Severe Symptoms (Requires Immediate Emergency Help)
Sweating, dizziness, light-headedness Severe confusion or disorientation
Shakiness, nervousness, anxiety Slurred speech or inability to speak
Confusion, headache, blurred vision Seizures or convulsions
Fast heartbeat (palpitations) Loss of consciousness (unresponsiveness)
Hunger, nausea

When to Seek Help

For mild to moderate symptoms, immediately consume a source of fast-acting sugar (e.g., glucose tablets, juice, or non-diet soda) as advised by your healthcare provider, and recheck your blood glucose level in 15 minutes. Follow the 15-15 rule until your blood sugar returns to a safe range, then eat a small snack containing longer-acting carbohydrates.

Seek immediate emergency medical attention (call emergency services) if severe symptoms occur, particularly if there is disorientation, seizures, or unconsciousness. A person who is unconscious should not be given food or drink by mouth. Emergency treatment may involve a glucagon injection administered by a trained individual or intravenous glucose in a medical setting.

Therapeutic Uses of Admelog

What Admelog Treats: Main Uses and Benefits

The therapeutic use of Admelog is relevant for the rapid management of blood sugar (glucose) levels in patients with Type 1 and Type 2 Diabetes Mellitus. It may assist with providing essential support across primary domains of symptomatic control.


Acute Symptom Management

Admelog is applied in clinical settings that involve the acute physiological strain following a sudden and significant rise in blood sugar, primarily addressing postprandial hyperglycemia. The primary benefit is providing short-term symptomatic assistance to ease the overall symptom burden of these episodic glucose excursions. Rapid-acting insulin is relevant when symptomatic support is needed immediately to manage the impact of food on glucose balance. This may assist with effective mealtime coverage and contributes to improved comfort during symptomatic periods.

Long-Term Goal Support

The medication is commonly used across conditions characterized by long-term systemic imbalance, such as diabetes in both adults and children. By consistently addressing post-meal spikes, Admelog supports overall glucose balance and plays a role in managing the condition to reach desired long-term glycemic goals. It is considered relevant for use in intensive insulin regimens requiring flexible, rapid action.


Quick Fact: Symptomatic Support for Acute Glucose Surges
Primary Symptom Postprandial Hyperglycemia
Targeted Use Management of post-meal blood sugar spikes
Patient Benefit Supports maintenance of functional stability during meals

Eligibility and Restrictions for Use

Who Can and Cannot Use Admelog?

The population eligibility for Admelog (Insulin lispro) is strictly defined by government regulatory documents, outlining those who are approved for use and those for whom the medication is contraindicated.


Contraindications and Prohibited Use

Admelog must not be used if a patient is experiencing an episode of hypoglycemia (low blood sugar), as stated in official labeling. It is also contraindicated for individuals with a known hypersensitivity or allergy to Insulin lispro or any of the inactive ingredients within the formulation.


Approved Age and Condition Status

Population Group Eligibility Status
Adults (Type 1 & 2 DM) Use is established and approved
Children (Type 1 DM, geq 3 years) Use is established and approved
Children (< 3 years) Safety and effectiveness not established
Pediatric (Type 2 DM) Safety and effectiveness not established

Conditional Use and Special Monitoring

Certain groups may use the medicine but require closer monitoring: Patients with renal (kidney) or hepatic (liver) impairment or those aged 65 years or older must be monitored closely due to an increased risk of hypoglycemia. Use during pregnancy is permitted if clinically indicated, and adjustments to dose or diet may be needed during lactation.

What should I know about interactions with other medicines?

The official regulatory profile for Admelog (Insulin lispro) is defined by its pharmacodynamic interactions, where numerous substances modify its glucose-lowering effect. These interactions are strictly classified based on the resulting impact on blood glucose levels, as documented in regulatory labeling.

Official Interaction Classifications

The co-administration of Admelog with certain medicines may lead to an enhanced glucose-lowering effect, increasing the risk of hypoglycemia. Substances formally documented in this category include ACE inhibitors, MAOIs, Salicylates, Fibrates, and other antidiabetic agents. Conversely, medicines that may decrease the glucose-lowering effect, potentially resulting in hyperglycemia, include Corticosteroids, Diuretics, Thyroid hormones, and Atypical antipsychotics.

Restrictions and Specific Warnings

Contraindicated conditions for Admelog administration include existing episodes of hypoglycemia and known hypersensitivity to insulin lispro or any excipient. A specific administration restriction prohibits mixing Admelog with any other insulin when administering via continuous subcutaneous infusion pump. A documented risk involves the co-administration of Admelog with Thiazolidinediones (TZDs), which is associated with the development or exacerbation of fluid retention and heart failure.

Furthermore, regulatory documents note that antiadrenergic drugs, such as Beta-blockers, may mask the warning signs and symptoms of hypoglycemia. The effect of alcohol is also documented as unpredictable, potentially causing either an increase or a decrease in the glucose-lowering effect.

Mechanism of Action

Admelog contains insulin lispro, a rapid-acting human insulin analogue. Its primary biological target is the insulin receptor ( IR), a transmembrane receptor found on the surface of most cells, with high concentration in skeletal muscle, adipose tissue, and the liver. The interaction type is that of an agonist.

Binding of insulin lispro to the IR initiates receptor autophosphorylation of the beta-subunits, which subsequently recruits and phosphorylates Insulin Receptor Substrates ( IRS). Phosphorylated IRS proteins trigger the phosphatidylinositol 3-kinase (PI3K)/Akt pathway.

The downstream cascade involves the translocation of Glucose Transporter type 4 ( GLUT4) vesicles from the intracellular space to the plasma membrane, primarily in muscle and fat cells. This enhances the cellular uptake of circulating glucose. Simultaneously, insulin lispro modulates liver function by inhibiting hepatic gluconeogenesis and glycogenolysis while promoting glycogen synthesis (glycogenesis). The system-level physiological consequence is the modulating of systemic glucose concentration through enhanced peripheral glucose utilization and reduced endogenous hepatic glucose production.

Dosage and Administration Information

Administration Overview

Admelog is a fast-acting insulin analog. It is typically administered by subcutaneous injection into the abdominal wall, the thigh, the buttocks, or the upper arm. To help reduce the risk of lipodystrophy or localized cutaneous amyloidosis, injection sites within the chosen area should be rotated with each dose.

This insulin is intended for administration shortly before meals, generally within fifteen minutes before starting a meal. It may also be administered immediately after a meal. Due to its rapid onset of action, the timing of administration is closely linked to food intake to manage postprandial glucose levels.

Preparation and Handling

Before use, the insulin solution should be inspected visually. It must be clear and colorless, with no visible particles. If the solution appears cloudy, thickened, or colored, it should not be used.

Admelog should be at room temperature before injection. When using pens or cartridges, the device must be primed according to the manufacturer's specific mechanical instructions to ensure the removal of air bubbles and the delivery of the correct dose.

Methods of Delivery

Subcutaneous Injection

When administered via a pre-filled pen or a syringe, the needle should be inserted as instructed by a healthcare provider. The injection site should not be massaged after the needle is withdrawn. Admelog can be used in combination with longer-acting insulins, but they should not be mixed in the same syringe unless specifically directed.

Continuous Subcutaneous Infusion (Insulin Pump)

Admelog may be administered via an external insulin pump. In this delivery method, the insulin is infused into the subcutaneous tissue. The infusion set and the reservoir must be changed regularly. It is important to ensure that the pump system is compatible with this specific insulin formulation.

Intravenous Administration

In certain clinical settings, such as under medical supervision in a hospital, Admelog may be administered intravenously. This requires close monitoring of blood glucose and potassium levels by medical staff.

Recent Clinical Evidence

Admelog: Recent Clinical Evidence


Research Focus in Type 1 and Type 2 Diabetes

The evidence base for Admelog in both Type 1 Diabetes Mellitus (T1DM) and Type 2 Diabetes Mellitus (T2DM) relies on intermediate-term comparative clinical trials. These studies were designed to evaluate Admelog against the reference Insulin lispro product. Researchers explored various glucose biomarkers in both adults and pediatric patients who were using a background basal insulin regimen.

Trials monitored specific outcomes related to glucose control, such as the change in the HbA1c biomarker and measurements of postprandial glucose (PPG) excursions. Findings describe patterns observed in these studies, reporting that the product was considered therapeutically equivalent to the reference Insulin lispro over the study period.

Evidence for Biosimilarity and Speed of Action

A crucial part of the evidence involves highly specialized Pharmacokinetic (PK) and Pharmacodynamic (PD) studies. These trials were not focused on long-term clinical outcomes but rather on establishing the product’s fundamental properties.

Studies monitored the pattern of absorption (PK) and the characteristic timing of its measured activity (PD). This research describes a pattern of rapid absorption and a rapid onset of measured activity, supporting the regulatory determination of Admelog’s high degree of similarity to the reference product.

Research Limitations and Uncertainty

Research has also evaluated Admelog in specific groups, including pediatric patients (children ages 3 years and older). However, the follow-up durations were limited in the key comparative trials, meaning there is limited information for long-term outcomes that span many years. Data for certain groups, such as pregnant individuals, remain insufficient. The research does not determine whether an individual will respond similarly over a much longer time frame.

Key Studies & References

  1. A Systematic Review of Insulin Lispro Biosimilars
  2. A review of biosimilar insulins: development, efficacy, and safety

Frequently Asked Questions (FAQ)

Common questions about Admelog (FAQ)


Q: How quickly is Admelog expected to start working after injection?

A: Admelog is classified as a rapid-acting insulin analog. Official product information indicates that the active ingredient, insulin lispro, typically begins its glucose-lowering action approximately 10 to 20 minutes after being administered by subcutaneous injection.

Q: What is the typical duration of action for Admelog?

A: The duration of activity for insulin lispro is generally described as being 2 to 5 hours. However, regulatory documents state that the actual duration of action for any insulin can vary considerably from person to person. Factors like the dose amount, the chosen injection site, and a person's physical activity level all influence how long the effects last.

Q: What's the main difference between Admelog and other rapid-acting insulins?

A: Admelog contains insulin lispro and is classified as a biosimilar to the original, reference insulin lispro product. Official documentation confirms that Admelog is highly similar to the reference product and that there are no clinically meaningful differences in its efficacy (how well it works) or safety profile.

Q: Does Admelog come in a pen or a vial?

A: Yes, Admelog is supplied as a solution for injection in two main formats. It is available in standard vials that require a syringe, and it also comes in a pre-filled disposable pen called the SoloStar pen.

Q: Is Admelog safe to use during pregnancy?

A: Regulatory documents describe use during pregnancy if clinically indicated. Available data has not established an association between insulin lispro and major adverse fetal outcomes. Such use is generally accompanied by intensified monitoring of blood glucose levels.

Q: Can Admelog be used in an insulin pump?

A: Yes, Admelog is approved for use by continuous subcutaneous infusion, which is the method used in appropriate insulin pump systems. Use in a pump requires following the specific instructions for the infusion set and system.

Q: What is the difference between Admelog and Admelog Solostar?

A: Admelog is the name of the medicine itself, which is the insulin lispro solution. Admelog SoloStar is the brand name of the disposable prefilled pen device that is used to deliver the Admelog solution for injection.

Q: Does the injection site affect how well Admelog works?

A: Yes. Official information on the drug's activity shows that the rate of absorption and the overall time course of action can depend on the chosen injection site. Rotation of sites is documented as important to help ensure consistent absorption and reduce the risk of tissue changes.

Q: How soon after taking Admelog should I eat?

A: Admelog is designed as a mealtime insulin to match the rise in glucose that occurs after eating. Official administration guidelines state that it should be administered by subcutaneous injection within 15 minutes before a meal or immediately after a meal.

Q: Is it possible to be allergic to Admelog?

A: Yes, it is possible. Official regulatory documentation states that Admelog is contraindicated (should not be used) if a person has a known hypersensitivity or allergy to insulin lispro or any other ingredient in the formulation. While localized allergic reactions are common, serious, body-wide allergic reactions are classified as a rare event.

Q: Does stress or illness change how Admelog works?

A: Official safety information notes that physical conditions, such as illness or infection, can affect blood glucose levels. When conditions change, such as during periods of illness, the individualized insulin regimen may require adjustment.

Q: Can Admelog affect blood pressure?

A: Admelog's official profile documents that it interacts with several medicines used to manage blood pressure. For example, some blood pressure medications, like ACE inhibitors, may enhance the glucose-lowering effect of Admelog, while other medicines, like diuretics, may decrease it.

Q: How does travel affect the use and storage of Admelog?

A: Regulatory documents provide specific instructions for the storage conditions and temperature limits for Admelog. When traveling, maintaining these conditions is important. Furthermore, changes in routine, particularly those involving time zones, may require an adjustment of the individualized insulin regimen.

Q: Is Admelog designed to be taken right before or right after a meal?

A: Yes, it is designed for meal coverage. Official regulatory instructions state that Admelog should be administered by subcutaneous injection within 15 minutes before a meal or immediately after a meal to control post-meal blood sugar.

Q: Is Admelog the same as Humalog (insulin lispro)?

A: Admelog is a follow-on biologic product containing insulin lispro, making it a biosimilar to the insulin lispro reference drug, which is Humalog. Regulatory bodies, after review, have determined that Admelog is highly similar with no clinically meaningful differences in efficacy or safety.

Q: How is the risk of low blood sugar managed when using Admelog?

A: Official risk mitigation strategies focus heavily on patient and caregiver education. These strategies emphasize the importance of self-monitoring of blood glucose and recognizing the signs and symptoms of low blood sugar (hypoglycemia).

Q: Are there any specific foods or drinks that interact with Admelog?

A: Regulatory documentation specifically mentions that the effect of alcohol is unpredictable and may cause either an increase or a decrease in the glucose-lowering effect. While the timing of food is essential for using Admelog, food itself is not listed as a contraindicative interaction.

Q: Can Admelog be mixed with other types of insulin?

A: Official administration instructions state that Admelog is not to be mixed with any other insulin or diluent when administered using a continuous subcutaneous infusion pump. The product labeling for the vial format does not generally support mixing with other insulins.

Q: Do over-the-counter pain relievers interact with Admelog?

A: Official documentation notes that medicines containing Salicylates, a class of drugs found in some common over-the-counter pain relievers, may lead to an enhanced glucose-lowering effect. This interaction could potentially increase the risk of hypoglycemia (low blood sugar).

Q: Is it normal to feel tired when first starting Admelog?

A: Adverse reaction documentation for insulin lispro has reported instances of general discomfort, including feeling fatigue and unusual tiredness or weakness in some patients. This is not listed as a 'very common' effect, but it has been documented.

Q: Are there different strengths of Admelog available?

A: Yes, Admelog is officially available in two strengths of solution for injection. These are U-100 (100 units/mL) and a more concentrated formulation, U-200 (200 units/mL).

Q: What signs of an allergic reaction to Admelog should I look out for?

A: Systemic allergic reactions are rare but serious. Documented signs to look out for include trouble breathing or swallowing, a fast heartbeat, and swelling of the face, hands, or mouth.

Q: Are there any long-term side effects associated with using Admelog?

A: Changes to the fatty tissue under the skin, called lipodystrophy, are linked to long-term administration at non-rotated injection sites. Key comparative trials had limited follow-up, indicating limited available information for long-term outcomes spanning many years.

Q: Does Admelog have a generic version?

A: Admelog is classified as a follow-on biologic (biosimilar) of the reference product Humalog. The non-proprietary name for the active substance is insulin lispro.

Q: What types of activity level changes might affect Admelog's action?

A: Official safety warnings note that changes in the level of physical activity may increase the risk of hypoglycemia (low blood sugar). Changes in activity are a factor that may be considered for adjustment of the individualized insulin dose.

Q: Is it normal to feel a sting or burning sensation when injecting Admelog?

A: Official documentation lists common injection site reactions such as redness, swelling, or itching. The presence of pain or discomfort, which may feel like a sting or burn, has also been documented at the injection site.

Q: Can Admelog cause changes in vision?

A: Safety information indicates that the rapid improvement in glucose control that can occur when starting insulin is associated with a temporary worsening of diabetic retinopathy (an eye condition). Additionally, blurred vision is a documented symptom of hypoglycemia.

Q: What is the role of Admelog in a basal-bolus regimen?

A: Admelog, as a rapid-acting insulin analog, functions as the bolus insulin component in a basal-bolus regimen. Bolus insulin is given specifically to cover the acute glucose load from meals (mealtime insulin).

How should Admelog be stored and disposed of?

Storage and Disposal Requirements

Unopened Admelog vials and SoloStar pens must be stored in a refrigerator (36°F to 46°F or 2°C to 8°C) until the expiration date. Do not freeze the medicine, and keep it away from direct heat and light. Discard Admelog if it has been frozen or overheated.

Once opened (in-use):

  • Vials may be stored in the refrigerator or at room temperature (below 86°F or 30°C) for up to 28 days. Discard the vial after this period, even if insulin remains.
  • SoloStar pens must be stored at room temperature (below 86°F or 30°C) for a maximum of 28 days and should not be refrigerated again. Do not store the pen with the needle attached.

Used needles, syringes, and SoloStar pens are classified as sharps and must be placed immediately in an FDA-cleared sharps disposal container. Follow local community guidelines for the proper disposal of the full container. Always keep the medicine out of the reach of children.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

Available in countries:

Equivalent of Admelog found in:

A-Z Index: