Aspegic 100

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Aspegic 100

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Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

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 Aspegic 100

Property Description
Active Ingredient Lysine Acetylsalicylate (L-ASA)
Form Reconstitutable powder for solution
Pharmacological Class Non-Steroidal Anti-Inflammatory Drug (NSAID)
General Purpose Analgesic, Antipyretic, Anti-platelet
Origin Synthetic (water-soluble salt derivative)

What Type of Medicine is Aspegic 100 and What is its Composition?

Aspegic 100 is a specific pharmaceutical preparation that contains the active ingredient Lysine Acetylsalicylate (L-ASA), placing it within the Salicylates chemical group and the broader class of Non-Steroidal Anti-Inflammatory Drugs (NSAID). This product is a synthetic compound that is distinguished from standard Aspirin by its chemical structure: it is a water-soluble salt formed by conjugating Acetylsalicylic acid (ASA) with the amino acid Lysine. The 100 mg strength is utilized for pediatric applications or for therapeutic regimens requiring a low dose of ASA.

The core identity is tied to the solubility of the L-ASA salt, which allows it to be formulated as a reconstitutable powder designed to be dissolved in water to create an aqueous solution. This form allows for versatile administration, enabling delivery via the oral or intravenous route when swift systemic action is required.


How Does Lysine Acetylsalicylate Differ from Standard Aspirin?

Lysine Acetylsalicylate primarily differs from standard, non-soluble Acetylsalicylic acid tablets by being a highly soluble salt, enabling rapid dissolution and aiding in swift absorption of the active component. Acetylsalicylic acid formulations are broadly classified as being used to prevent platelet aggregation, a function for maintaining cardiovascular health. The active component is utilized to help reduce the risk of clot formation.

The general principle of its physiological action involves the rapid release of the Acetylsalicylic acid moiety upon dissolution. This enhanced solubility is a key characteristic that contributes to a fast initial therapeutic effect compared to solid oral forms of the parent compound, often leading to its selection in scenarios requiring quick symptom management, such as the acute reduction of fever.


What General Benefits Does Aspegic 100 Provide?

The general purpose of this medication is the delivery of effects related to its core pharmacological classification, providing relief from common physical discomforts by delivering pain-relieving (analgesic) and fever-reducing (antipyretic) properties. Crucially, the active component is known for its anti-platelet aggregation effect, which gives it the general benefit of helping to maintain healthy blood flow, a characteristic central to the use of salicylates. This profile confirms the broad therapeutic characteristic of this formulation.

Regulatory References

  1. WHO Essential Medicines List: Acetylsalicylic acid

What side effects are possible with Aspegic 100?

Possible side effects and safety information

Official regulatory documents classify the adverse reactions associated with Lysine Acetylsalicylate (L-ASA) according to the body system affected and their reported frequency. Due to its classification as a Non-Steroidal Anti-Inflammatory Drug (NSAID) and its anti-platelet properties, the most Common adverse effects involve the Gastrointestinal System and the Blood and Lymphatic System, typically presenting as dyspepsia, nausea, and an increased tendency for minor bleeding.


Serious Adverse Reactions and Safety Constraints

The safety profile includes documented risks classified as Rare, such as Gastrointestinal Haemorrhage, Anaphylactic Shock, and the potential for Reye's Syndrome in children and adolescents who are concurrently experiencing fever from certain viral illnesses. The official regulatory label imposes high-level constraints that prohibit the use of this medicine in individuals with active peptic ulceration, a history of recurrent gastrointestinal bleeding, or severe renal or hepatic failure.


Population-Specific and Duration-Related Safety Notes

Specific safety considerations are officially noted for certain populations. Older adults have an increased frequency and severity of adverse effects, particularly serious gastrointestinal bleeding. Use is generally restricted in children and adolescents due to the association with Reye’s Syndrome. For all patients, the risk of serious gastrointestinal events is officially documented to increase with both increasing dose and duration of use, guiding the understanding of the drug's long-term safety characteristics. Use in late pregnancy is advised against due to risks to the fetus.

Overdose and Emergency Response

Overdose and When to Seek Help

This section describes the officially documented manifestations and required emergency actions for Lysine Acetylsalicylate (Salicylate) overdose, strictly as defined in government regulatory documents.


Documented Overdose Manifestations

Element Official Regulatory Statement
Salicylism (Mild Toxicity) Includes symptoms like tinnitus (ringing in the ears), deafness, nausea, vomiting, and hyperventilation (rapid breathing).
Severe Outcomes Documented progression includes seizures, coma, cerebral oedema, respiratory arrest, and severe metabolic acidosis.

Required Emergency Actions

Element Official Regulatory Statement
Immediate Action Seek immediate medical attention for suspected overdose. Contact a Poison Control Center immediately (or local emergency services).
Hospital Management Haemodialysis is the treatment of choice for severe poisoning. Management procedures include gastric lavage, activated charcoal, and urinary alkalinisation.

Population and Antidote Notes

Regulatory documentation notes that elderly patients and small children have an increased risk of toxicity and fatality. No specific antidote is listed in the official management guidelines; treatment is supportive and focused on enhancing the elimination of the salicylate compound.

Therapeutic Uses of Aspegic 100

What Aspegic 100 Treats: Main Uses and Benefits

The therapeutic utility of Lysine Acetylsalicylate is generally considered relevant across key domains, supporting both long-term health efforts and symptomatic relief. The active component is utilized in addressing symptoms related to physical discomfort and systemic imbalance, and in managing factors associated with circulatory health.

This medication is relevant for managing conditions characterized by periods of heightened symptoms, including the secondary management of vascular risk and the management of acute discomfort such as mild to moderate pain, headache, and systemic fever associated with illness.

Its use plays a role in managing factors associated with circulatory health and assists with maintaining functional stability.

Therapeutic Domains

The medication is used in situations involving certain distressing symptoms across relevant therapeutic domains: Cardiovascular Prevention, Symptomatic Pain and Fever Relief, and Management of Systemic Inflammation. In clinical settings that involve acute or unstable symptom patterns, it helps address symptom clusters that may become intense or disruptive, contributing to improved comfort during symptomatic periods.

Quick Fact: Relief for Physical Discomfort The medication is commonly used to help with symptoms related to physical discomfort and systemic imbalance, supporting the patient during difficult episodes by helping to ease distress.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Aspegic 100 is generally reserved for use in infants and children weighing between 6 kg and 22 kg (approximately 3 months to 7 years) for approved pediatric indications. Use outside of this specific age and weight range is typically managed with other dosage strengths.

Contraindicated Populations

Use of Aspegic 100 is strictly contraindicated in several groups due to the risk of serious adverse events. You must not use this medicine if the patient has:

  • A known allergy (hypersensitivity) to acetylsalicylic acid, other salicylates, or Non-Steroidal Anti-Inflammatory Drugs (NSAIDs).
  • An active or recurrent history of peptic ulcer or gastrointestinal bleeding.
  • Severe renal, hepatic, or heart failure.
  • Any history of bleeding disorders (e.g., hemophilia, hypothrombinaemia).
  • Gout or mastocytosis.
  • Concomitant treatment with high-dose oral anticoagulants or methotrexate (>15 mg/week).

Age and Condition Restrictions

Population / State Eligibility Status (Regulatory Basis)
Children under 16 years Contraindicated for pain/fever during or immediately after a viral illness (e.g., influenza, chickenpox) due to the risk of Reye's Syndrome, unless specifically prescribed by a physician.
Pregnancy (Third Trimester) Contraindicated from the beginning of the 6th month (beyond 24 weeks of gestation). Use is not recommended during the first two trimesters unless clinically necessary.
Breast-feeding Contraindicated due to the potential risk of Reye's Syndrome in the infant.
Lactose Intolerance Contraindicated as the powder contains lactose.

What should I know about interactions with other medicines?

The official interaction profile for Lysine Acetylsalicylate (Aspegic 100) is defined by two primary regulatory concerns: the Pharmacodynamic Reinforcement of bleeding risk and the potential for Systemic Drug Exposure Modification of co-administered agents. The active component, Acetylsalicylic Acid (ASA), requires strict avoidance of certain combinations.

Regulatory documents state that co-administration with other Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) must be avoided due to a significantly increased risk of gastrointestinal bleeding and adverse events. Chronic, heavy alcohol consumption (ge 3 drinks/day) carries a similar restriction due to heightened GI ulceration risk.

Interactions involving altered plasma levels include: Methotrexate serum levels may become elevated and prolonged due to ASA’s effect on renal clearance and protein displacement. ASA also causes an increase in serum Valproic Acid levels and a decrease in the total concentration of Phenytoin by displacement from protein binding sites.

The risk of bleeding is formally increased when Aspegic 100 is combined with Anticoagulants (e.g., Warfarin) or Antiplatelet Agents (e.g., Clopidogrel). Co-administration with SSRIs or Oral Corticosteroids may also increase the risk of GI bleeding. Population-specific cautions note that combining with ACE Inhibitors or ARBs in the elderly or renally impaired may result in a formal deterioration of renal function. The use of this medicine is also classified as contraindicated during the third trimester of pregnancy.

Mechanism of Action

The mechanism of Aspegic 100 is defined by the action of Acetylsalicylic acid (ASA), which works by irreversibly modifying key regulatory enzymes across different biological systems.

The Irreversible Blockade of Cyclooxygenase (COX) Enzymes

ASA permanently modifies the Cyclooxygenase (COX) enzyme by transferring an acetyl group to its active site. This unique covalent binding irreversibly impairs the production of prostanoid mediators, which are key participants in biological signaling. The permanent inactivation of the COX enzyme establishes a sustained inhibition of platelet aggregation signals, which continues due to the permanent inactivation of the enzyme within the platelet.

Cascade Translation: Modulation of Prostanoid Synthesis

By inhibiting the COX enzymes, ASA blocks the conversion of Arachidonic Acid into downstream prostanoids, including the clotting signal Thromboxane A2 (TXA2) and the temperature/pain signal Prostaglandin E2 (PGE2). This modulates the entire Arachidonic Acid cascade, which is central to processes involving local inflammation, temperature regulation, and hemostasis.

Duration and Mechanism Limitations Across Cell Types

In platelets, the irreversible COX-1 inhibition is long-duration because the cells cannot synthesize new enzyme protein. In contrast, nucleated cells, such as endothelial cells, can synthesize new COX-2 enzyme rapidly to restore production of the anti-aggregatory mediator Prostacyclin (PGI2). This differential inhibition maintains the suppression of pro-aggregatory signals (TXA2) while permitting the relatively rapid restoration of anti-aggregatory signals (PGI2) in the vessel wall.

Dosage and Administration Information

Instruction Map: How to use Aspegic 100 — Administration Guidelines

This section outlines the instructions for the administration of Aspegic 100 (Lysine Acetylsalicylate powder for oral solution).


Administration Scope

Feature Instruction
Route of administration The route for this formulation is Oral, following preparation.
Dosing schedule Dosage is calculated based on the patient's body weight (in kilograms), aiming for a total daily dose of approximately 60 mg of acetylsalicylic acid per kilogram of weight.
Timing in relation to meals (if applicable) Instructions do not specify a requirement to take the product with or without food.
Preparation requirements (if applicable) The powder in the sachet must be dissolved completely in a small quantity of liquid (such as water or milk) before it can be administered.
Age-group administration rules The 100 mg presentation is reserved for infants and children weighing between 6 and 22 kg (roughly 3 months to 7 years old).
Missed-dose rules Specific protocols for missed doses are not detailed, but the minimum required interval between administrations must always be respected.
Special procedural conditions The maximum number of sachets per day for the child's weight bracket must not be exceeded.

Instruction Classifications (High-Level)

Classification Instruction
Administration method type Oral
Frequency pattern Multiple times per day for symptomatic use, requiring a minimum interval of 4 to 6 hours between administrations.
Product Type Lysine Acetylsalicylate powder for oral solution.
Use-context constraints Use is time-limited for symptomatic relief: maximum of 3 days for fever and maximum of 5 days for pain.

Resulting Procedural Structure

Step sequence:

  • The child’s body weight determines the appropriate daily and per-dose limits.
  • The powder must be fully dissolved in a liquid prior to intake.
  • Doses must be spaced by a minimum interval of 4 to 6 hours.
  • The established maximum daily sachet allowance must be adhered to.

Connection to the overall use protocol: This use protocol defines the framework for administration, linking the dose quantity directly to the patient’s body weight to establish consumption limits. The required step of dissolving the powder establishes the oral solution as the appropriate route. This structure governs the frequency and short-term duration of use for the product.

Recent Clinical Evidence

Evidence for Cardiovascular and Cerebrovascular Prevention

Research was applied to study the active component in large-scale Randomized Controlled Trials (RCTs) and systematic reviews in adults with established vascular disease. The primary outcomes observed were related to systemic imbalance, specifically measuring the incidence of subsequent major vascular events (MCEs) over extended observation periods. Findings describe patterns observed in the studies related to vascular outcomes and the reported frequency of bleeding events. Certainty remains low regarding the net clinical effect when considering both the studied vascular outcomes and bleeding risks.

Evidence for Symptomatic Relief of Pain and Fever

The medicine was studied for outcomes related to physical discomfort in trials assessing short-term or episodic symptom patterns, such as headache, muscle aches, and fever. Research examined short-term changes, measuring patient-reported discomfort and physiological strain. Findings help contextualize how symptoms evolved over acute observation periods. However, there are limited large-scale clinical trials specifically designed for the Lysine Acetylsalicylate formulation for general symptomatic relief; the evidence base relies primarily on data derived from the parent compound's established clinical history.

Studies Comparing Lysine Acetylsalicylate Formulation

The specific Lysine Acetylsalicylate formulation was studied in prospective, controlled pharmacodynamic studies. These trials measured the speed and magnitude of Platelet Aggregation Inhibition (IPA), a physiological biomarker. Findings indicate a different pattern in the speed of platelet inhibition was observed in some studies when comparing the soluble formulation to standard oral forms. The research is mainly focused on biomarkers, and there is limited information on whether these observed differences translate into differences in long-term clinical outcomes.

Long-Term Evidence, Specific Populations, and Uncertainty

Long-term follow-up was observed in many cardiovascular studies, but long-term effects are not fully established regarding the continuous balance between studied vascular outcomes and bleeding risks over decades of use. Data for certain groups remain insufficient, as dedicated studies have not been performed in the pediatric population. Overall, evidence quality varies across studies, and comparative evidence is lacking regarding long-term outcomes for the Lysine Acetylsalicylate formulation versus the standard compound.

Key Studies & References

  1. Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) - StatPearls (reflects general evidence context for symptomatic relief, side effects, and patient groups)
  2. Aspirin: MedlinePlus Drug Information (reflects general evidence context for symptomatic relief and special populations)

Frequently Asked Questions (FAQ)

Common questions about Aspegic 100 (FAQ)


Q: Is Aspegic 100 used for the prevention of heart attack or stroke?

A: The active ingredient, Lysine Acetylsalicylate, is a soluble form of Acetylsalicylic Acid (ASA), which is indicated for preventing cardiovascular and cerebrovascular events in at-risk adult populations. However, regulatory documents for the 100 mg strength of Aspegic specifically reserve its approved use for the short-term treatment of fever and pain in children weighing 6 to 22 kg.


Q: Why is Aspegic 100 sometimes described as an 'infant' or 'child' dose in some countries?

A: The 100 mg strength of Aspegic is formally reserved for infants and children weighing between 6 and 22 kg for the treatment of pain and fever, as per its regulatory labeling in certain regions. This specific product presentation is dose-calculated for pediatric use based on body weight, which contributes to this description.


Q: Does taking Aspegic 100 daily increase the risk of bruising?

A: Official product information indicates that Lysine Acetylsalicylate is associated with an increased tendency for minor bleeding. The Blood and Lymphatic System is listed as a body system commonly affected in its safety profile.


Q: Is it necessary to stop taking Aspegic 100 before a minor surgical procedure or dental work?

A: Regulatory warnings state that this medicine increases the risk of bleeding due to its anti-platelet effect. Regulatory documents advise informing a medical or dental professional about use of the medicine prior to any procedure.


Q: What is the general guidance if a dose of Aspegic 100 is accidentally missed?

A: Official instructions state that specific protocols for missed doses are not detailed in the product information. Regulatory documentation indicates that the minimum required interval (4 to 6 hours) between administrations must be respected.


Q: How long does the anti-clotting effect of Aspegic 100 typically last in the body?

A: The anti-platelet effect is described as long-duration and irreversible because the medicine permanently inactivates the enzyme in platelets. This effect lasts for the entire lifespan of the affected platelets, which is approximately 7 to 10 days.


Q: Does Aspegic 100 start working immediately, or does it require time to build up an effect?

A: Studies and official information indicate that the highly soluble salt formulation is associated with rapid dissolution and swift absorption of the active component. This characteristic contributes to a fast initial therapeutic effect, such as in the acute reduction of fever.


Q: Does the powder formulation of Aspegic 100 change how quickly it is absorbed?

A: According to the product information, the water-soluble salt form is designed to enable rapid dissolution and aid in swift absorption of the active component. This offers a potential difference in the speed of action compared to non-soluble forms.


Q: What kind of research evidence supports the use of Aspegic 100 for blood clot prevention?

A: Research, including Randomized Controlled Trials (RCTs), supports the use of the active component in adults for the secondary prevention of major vascular events. These studies describe patterns observed in vascular outcomes and the reported frequency of bleeding events.


Q: How does Aspegic 100 compare to other low-dose aspirin products like enteric-coated tablets?

A: Studies have compared the soluble formulation to standard oral aspirin forms, noting a different pattern in the speed of platelet inhibition. The label focuses on the benefit of rapid action, but does not offer a direct comparison of long-term gastrointestinal safety profiles against enteric-coated products.


Q: Does taking Aspegic 100 long-term require specific medical monitoring?

A: The risk of adverse events, particularly serious gastrointestinal events, increases with the duration of use. Official documentation indicates that close clinical monitoring for signs of toxicity is advised when salicylates are used long-term.


Q: Can Aspegic 100 be taken if I am already taking medication for high blood pressure?

A: Official labeling cautions against co-administration with ACE Inhibitors or ARBs (certain types of blood pressure medication) in the elderly or those with impaired renal function. This is because the combination may result in a formal deterioration of kidney function.


Q: Is there a known interaction between Aspegic 100 and common supplements like fish oil?

A: Regulatory documents indicate the active component (ASA) may potentiate the effects of certain supplements, such as Omega-3 fatty acids (fish oil), increasing the risk of bleeding complications. Regulatory information notes that the risk of bleeding complications may be increased when the active component is combined with certain supplements, particularly at high doses of Omega-3 fatty acids (over 3 grams per day).


Q: Does Aspegic 100 affect the results of blood tests, such as bleeding time?

A: According to regulatory documents, the active component, Acetylsalicylic Acid, is known to prolong the bleeding time and may cause a slight increase in prothrombin time (PT) at usual recommended dosages.


Q: What are the known potential signs of too much aspirin in the body (toxicity)?

A: Official labeling requires monitoring for toxicity in long-term use. Known signs of toxicity (sometimes called salicylism) can include tinnitus (ringing in the ears), nausea/vomiting, and vertigo.


Q: Does Aspegic 100 cause or contribute to tinnitus (ringing in the ears)?

A: Tinnitus (ringing in the ears) is a known adverse effect of salicylates and is a recognized symptom of chronic overdose (salicylism). Official information notes that tinnitus is a recognized symptom of chronic overdose (salicylism) and a known adverse effect.

How should Aspegic 100 be stored and disposed of?

How to Store and Dispose of Aspegic 100

Official regulatory guidelines mandate specific conditions for storing and discarding Aspegic 100 (Lysine Acetylsalicylate powder).

Required Storage and Stability

Condition Requirement
Temperature Store the powder below 30°C (86°F), avoiding excessive heat.
Protection Keep the product in a dry place and protected from light.
Child Safety Must be stored out of the sight and reach of children at all times.
Reconstituted Solution The prepared solution must be discarded if not used within 8 hours and must not be frozen.

Disposal Instructions

Unused or expired medication must be disposed of according to local regulations.

Regulators strictly prohibit discharging the product into the sewer systems or drains to prevent environmental contamination.

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

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