Late

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Late

Method of action: Angioprotective, Hemostatic

Treatment option: Crush Injury

Medically reviewed

Marina Burgos

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 Late

Quick Facts about Late (Etamsylate)

Property Description
Active Ingredient Etamsylate
Forms Tablets, Solution for Injection
Pharmacological Class Hemostatic Agent, Angioprotector
Origin Synthetic
Purpose To help control bleeding from capillaries

Late (Etamsylate): A Definition and Pharmacological Class

The medicine Late is defined by its active pharmaceutical ingredient, Etamsylate, a compound classified as a hemostatic agent and an angioprotector. As a synthetic, single-component drug, its primary pharmacological function is to assist the body in achieving hemostasis, the process of controlling or stopping blood loss, particularly within the microcirculation. Its efficacy in managing microvascular bleeding is clinically recognized and supported by pharmacological studies. This means the medicine works by strengthening the walls of the smallest blood vessels, making them less prone to leakage.


Composition, Origin, and Available Pharmaceutical Forms

Late contains only one therapeutic substance, Etamsylate, which is manufactured through chemical synthesis, designating it as a compound of synthetic origin. To accommodate various needs, Late is available in two distinct dosage forms: solid tablets intended for oral administration and a sterile solution for injection designed for parenteral (intravenous or intramuscular) use. This dual presentation offers flexibility in administration.


The General Purpose of Capillary Stabilizing Agents

The general purpose of this medicine is to help control or prevent bleeding originating from the smallest vessels, the capillaries, by acting as a capillary stabilizing agent. Its function involves two complementary actions: acting on the vessel walls to normalize their permeability and supporting the ability of platelets to stick together and to damaged vessel walls, which is crucial for initiating clot formation. This targeted activity generates an anti-hemorrhagic effect focused at the source of microvascular bleeding, providing support during procedures associated with capillary bleeding.

Regulatory References

  1. Etamsylate: Therapeutic Efficacy and Mechanism of Action (NIH)

What side effects are possible with Late?

Possible side effects and safety information

The safety profile of Etamsylate is organized by regulatory bodies according to the frequency and physiological system affected by adverse reactions. Non-specific effects often reported, but with a Frequency Not Known classification, include headache, nausea, and skin rash. These manifestations are documented as generally reversible upon cessation of treatment.

Officially classified adverse reactions affecting specific System-Organ Classes (SOC) include Very Rare events such as thromboembolism and hypotension (low blood pressure), categorized under vascular disorders. Very rare effects on the blood system, such as agranulocytosis, neutropenia, and thrombocytopenia, have also been documented. Rare effects include arthralgia (joint pain) of the musculoskeletal system.

Serious adverse reactions highlighted in regulatory documents involve severe hypersensitivity reactions, which may lead to anaphylactic shock or severe respiratory distress, particularly associated with the sulphite excipient in the injection formulation. The development of fever or skin reactions is noted as a possible sign of hypersensitivity.

Safety Considerations for Special Populations and Constraints

Official safety labeling mandates caution for several patient groups. Use in patients with renal impairment or hepatic impairment requires particular consideration, as specific clinical studies addressing these populations have not been performed. Due to limited clinical data, caution is also required during pregnancy, and breast-feeding is inadvisable because Etamsylate is secreted into breast milk. The medicine is formally contraindicated in individuals with known hypersensitivity to the drug or excipients, acute porphyria, bronchial asthma, or confirmed sulphite hypersensitivity.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for Late (Etamsylate) is defined by a lack of clinical data on overdosage. The prescribing information explicitly states that there is no clinical experience of overdosage with this medicine. Consequently, specific symptoms, clinical signs, or life-threatening outcomes from an overdose are not formally documented in the regulatory labeling. Due to this context constraint, no severity classification is assigned, and no population-specific risks are detailed in the overdose section. The only acute local presentation noted in regulatory-aligned safety documents is the potential for serious eye irritation.


Emergency Actions and Treatment Protocol

The lack of a documented overdose profile necessitates strict adherence to mandated emergency procedures. It is officially required that the user seek medical advice immediately in the event of any suspected over-exposure or accident. This medicine has no specific antidote known. Management of any overdose situation is officially mandated to be entirely symptomatic and supportive treatment. Instructions for accidental, excessive oral ingestion explicitly state to NOT induce vomiting. This uniform management protocol is consistently described across authoritative governmental sources to define the required response and urgent help-seeking condition.

Therapeutic Uses of Late

What Late Treats: Main Uses and Benefits

Late is used in situations involving certain distressing symptoms related to physical discomfort that interfere with daily functioning. It is generally used for managing mild to moderate pain and for addressing symptoms related to systemic imbalance. Specifically, it is applied in addressing symptom clusters that interfere with daily comfort, such as headache, muscle soreness, and other symptoms associated with the common cold or flu.


This medication is applied across domains where additional symptomatic support is needed for conditions characterized by temporary physiological imbalance. It is relevant for easing symptoms related to systemic imbalance and supports patients during episodes of heightened discomfort. The overall benefit is that it assists with maintaining functional stability and offers symptomatic relief.

“It provides support that helps ease the overall symptom burden, particularly during acute episodes.”

Quick Fact: Symptomatic Support for Physical Discomfort and Fever


This medication is relevant for easing symptom clusters that may appear suddenly in acute episodes, such as when fever, aches, and general unwellness occur together. It supports general well-being during symptomatic phases, helping patients cope more steadily with difficult episodes.

Eligibility and Restrictions for Use

Who Can and Cannot Use Late (Etamsylate) — Official Regulatory Information

Eligibility for Late is defined by regulatory labels that outline specific population groups and health conditions. The medicine is contraindicated and must not be used by individuals with known hypersensitivity to etamsylate or excipients, including confirmed sulphite hypersensitivity in some formulations. Use is also prohibited in patients with acute porphyria or a history of thromboembolic disorders (blood clots).

Population and Condition Restrictions

Population/Condition Regulatory Status
Hepatic or Renal Impairment Caution is required (Clinical studies are insufficient in these groups).
Pregnancy Caution is required (Human data is insufficient).
Lactation Use is inadvisable (Due to absence of data on passage into breast milk).
Low-Birth-Weight Neonates Approved for restricted use for periventricular haemorrhage.

General use is established for adults, but specific caution is required during parenteral administration in patients with hypotension. Outside of the specified neonatal indication, use in the general pediatric population is not established.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Late (Etamsylate) is notable for the documented absence of classical drug-drug interactions and the presence of specific constraints related to administration and diagnostic testing. Authoritative government sources generally state that no interactions with other medicinal products are known.


Interaction Scope

Category Official Regulatory Documentation Statement
Medicinal product categories with documented interactions No specific categories of co-administered medicinal products are officially documented as interacting with Etamsylate.
Mechanistic basis of interactions (only if stated in label) No pharmacokinetic (e.g., CYP, transporter) or pharmacodynamic mechanistic basis is stated in the regulatory interaction sections.
Interaction-related restrictions Must not be mixed with the incompatible solutions prior to administration. The substance is also documented as an analytical interferent with enzymatic creatinine assays.

Interaction Classifications (High-Level)

Classification Official Regulatory Documentation Statement
Timing-based interaction rules (if applicable) The solution for injection is formally incompatible with sodium bicarbonate solutions and compound sodium lactate solutions (a pharmaceutical incompatibility restriction).
Analytical product interference The drug acts as an analytical interferent with enzymatic creatinine assays, which may cause a negative bias in the reported creatinine value.

Connection to the overall interaction profile: The regulatory documents define the product’s interaction structure primarily through the absence of documented drug-drug interactions and the presence of specific pharmaceutical incompatibility restrictions related to its injectable formulation. The profile is further constrained by the officially documented analytical interference with specific diagnostic products, requiring consideration during laboratory testing. This structure is strictly limited to administration restrictions and product interference as stated by regulatory bodies.

Mechanism of Action

How Late Works

Etamsylate exerts a dual mechanism of action focused exclusively on the microvasculature. The first domain involves an angioprotective effect, targeting the structures of the microcirculation, specifically the endothelial cell basement membrane and the surrounding extracellular matrix. By reinforcing the integrity and mechanical resistance of the capillary wall, this action leads to the normalization of pathologically increased vascular permeability and decreases the efflux of fluid and blood components.

The second domain is the local modulation of primary hemostasis. Etamsylate influences clotting components by reducing the signal from anti-aggregatory mediators, such as Prostacyclin ( PGI2). This modulation promotes the necessary adhesion and aggregation of platelets at the site of microvascular injury. This action facilitates the formation of a primary platelet plug, which acts in parallel with the reinforcement of the capillary structure.

These two mechanistic domains are peripherally focused and limited to the microvasculature. The mechanism does not interfere with the systemic blood coagulation cascade (clotting factors) and affects primary hemostasis and the mechanical resistance of capillaries.

Dosage and Administration Information

How Late (Etamsylate) is Used

Late (Etamsylate) is administered according to specific regimens outlined in official prescribing information to manage microvascular bleeding. The medicine is available for both oral administration via tablets and parenteral use as a solution for injection, which may be given either intravenously (IV) or intramuscularly (IM).

Standardized Administration Patterns

Dosing regimens are standardized for different phases of treatment. For adults, an initial parenteral dose of 750 mg to 1000 mg is typically used, followed by a maintenance dose of 500 mg per administration. This maintenance dose is usually scheduled every 4 to 6 hours and may be given by injection or orally. The duration of use is defined by the acute condition, generally continuing until bleeding has stopped completely.

Population-Specific and Procedural Instructions

Specific administration rules govern use in particular populations. For neonates, the official regimen is 12.5 mg/kg body weight, administered every six hours for the first 4 days of life. The first dose must be given within one hour of birth.

Procedural constraints apply to the injection solution. It is incompatible with specific alkaline solutions, such as sodium bicarbonate and compound sodium lactate. Additionally, when diluted with saline, the solution must be used immediately. Caution is also noted regarding the administration to patients with hepatic or renal impairment.

Recent Clinical Evidence

Research evidence / Overview of Studies for Late (Etamsylate)


Research Evidence for Dysfunctional Uterine Bleeding (Menorrhagia)

Research has been conducted for the use of Late in adult women dealing with heavy menstrual bleeding, which is a condition characterized by fluctuating or episodic manifestations. These studies primarily utilized Randomized Controlled Trials (RCTs) and various comparative designs. Researchers focused on specific outcomes, measuring the quantitative volume of blood loss over several cycles, as well as applied in studies examining patient-reported experiences related to the bleeding's impact on their daily functioning or activity level. The findings from these studies describe patterns observed where outcomes were measured during the short to intermediate study period. However, scientific literature notes that the evidence is limited in certain areas, and the long-term effects are not fully established.


Research Evidence for Preventing Blood Loss in Surgical Contexts

Studies were conducted to investigate blood loss volume during and immediately following the operation. The studies primarily monitored the volume of intraoperative and immediate postoperative blood loss, along with the requirements for blood transfusions in patients undergoing procedures like general, gynecological, and urological surgery. The research describes observed patterns related to both the measured blood loss volume and the observed need for blood products. Certainty remains low outside of these specific, short-term scenarios. Follow-up durations were limited primarily to the immediate recovery period, and study findings show inconsistency across different surgical procedures.


Research Evidence for Use in Neonates (Preventing Intraventricular Hemorrhage)

Research was studied for use in a specific, high-risk population: preterm or very low birth weight infants. The evidence here primarily comes from Systematic Reviews and Meta-analyses of often older, RCTs. Researchers tracked outcomes related to systemic or functional imbalance, measuring the incidence of severe bleeding in the brain and also tracking neurodevelopmental status measured up to two years later. Studies conducted during periods of increased symptom activity monitored and recorded findings related to the incidence of bleeding. However, when assessing the long-term functional measures, findings were mixed, and the overall effect on long-term neurodevelopmental outcomes is uncertain.

Frequently Asked Questions (FAQ)

Common questions about Late (FAQ)

Q: What is the main reason Late is prescribed by doctors?

According to official product information, the primary use of Late is for the prophylaxis and control of bleeding from small blood vessels, known as microvascular haemorrhages. This includes managing conditions such as heavy menstrual bleeding (menorrhagia) and preventing bleeding in high-risk newborn infants.


Q: Is Late a narcotic or controlled substance?

Official drug regulatory agencies state that Late, which contains the active ingredient Etamsylate, is not classified as a controlled substance or narcotic. It is officially categorized as a hemostatic agent, meaning it supports the body in controlling bleeding.


Q: How quickly is Late expected to start working?

Official product information describes the anti-haemorrhagic effect of Late as starting shortly after administration. For the intravenous injection, the therapeutic effect is specifically noted as being rapid.


Q: What should I do if I miss a dose of Late?

Official patient information describes the standardized approach for managing a missed dose. Regulatory labels typically indicate that if a dose is missed, it should generally be administered when remembered, unless the next dose is due shortly. The instructions usually advise against administering a double dose to make up for a missed one.


Q: Is it common to feel tired when starting Late?

Official safety information includes a general feeling of malaise (discomfort) or asthenia (physical weakness) as possible side effects. Regulatory documents state that the frequency of these particular effects is often classified as unknown or uncommon.


Q: What is the difference between Late and other similar medicines?

Late is officially classified as a hemostatic agent and an angioprotector. Regulatory documents indicate that its action is distinct, as it works by strengthening the capillary walls and encouraging platelets to aggregate. This mechanism is described as peripheral and does not interfere with the body's main blood coagulation (clotting) cascade.


Q: Does taking Late affect my ability to drive or operate machinery?

Official product labeling states that the medicine generally has no or negligible influence on a person's ability to drive or use machinery. However, regulatory warnings suggest that if side effects such as dizziness or low blood pressure (hypotension) occur, caution is advised regarding activities that require full attention.


Q: Are there any specific foods or drinks to avoid while taking Late?

The official regulatory profile for Late notes that no specific food or drink interactions are formally documented or known.


Q: Is there a risk of dependency or addiction with Late?

Official safety documentation indicates that the active ingredient, Etamsylate, is not classified as a dependence-forming agent. Therefore, no specific risk of dependency or addiction is noted in the regulatory safety profile.


Q: Can older adults use Late safely?

Regulatory guidelines state that no specific dose adjustment is required for older adults solely based on age. However, official safety considerations note that caution is required, particularly regarding an individual's overall health and pre-existing conditions, such as kidney or liver impairment.


Q: What does it mean if an official document says Late is 'contraindicated' for certain people?

In regulatory documents, a contraindication defines conditions or circumstances in which the medicine must not be used. This indicates that for individuals with those conditions, the risks associated with the medicine, such as severe hypersensitivity or complications, are officially judged to outweigh the potential therapeutic benefit.


Q: Can Late change the effectiveness of birth control pills?

Regulatory documents and the official interaction profile state that no specific interaction between Etamsylate and hormonal contraceptive products (such as birth control pills) is currently documented or known.


Q: Is Late known to cause weight gain or weight loss?

The official safety profile for Late does not list weight gain or weight loss among the classified adverse reactions.


Q: What is the purpose of the black box warning on Late's labeling, if it has one?

According to official regulatory labeling from agencies like the FDA or EMA, the product does not include a black box warning. A black box warning is a specific type of label required for drugs with serious safety concerns.


Q: Does the time of day I take Late matter for its effectiveness?

Official dosing schedules indicate that maintenance doses are usually taken at regular intervals, such as every 4 to 6 hours. Regulatory dosing schedules emphasize evenly spacing the doses throughout the day to help maintain consistent blood levels, rather than focusing on the specific time of day the initial dose is given.


Q: What happens if I stop taking Late suddenly?

Official product documents do not note specific withdrawal symptoms or require a gradual reduction in dose if the medicine is stopped suddenly. The duration of use is generally linked to the resolution of the acute microvascular bleeding event.


Q: Is a metallic taste in the mouth a listed side effect of Late?

The official safety profile for Late does not list a metallic taste (medically referred to as dysgeusia) among the documented side effects.


Q: Can Late be split, crushed, or chewed?

Official administration instructions specify that Late tablets should be swallowed whole with water. The regulatory information does not provide instructions or authorization for altering the tablet form by splitting, crushing, or chewing.


Q: What are the general expectations for the duration of Late's effects?

The anti-haemorrhagic effect is described as having a rapid onset. The general expectation is that the effect will last long enough to maintain the necessary therapeutic support within the required 4 to 6 hour intervals between maintenance doses.


Q: Does Late cause 'brain fog' or difficulty concentrating?

The safety profile lists headache as a possible adverse event affecting the nervous system. However, specific side effects described as "brain fog" or difficulty concentrating are not listed as classified adverse reactions in official regulatory documents.


Q: Is Late available as a generic medicine?

The active ingredient in Late is Etamsylate, and because its original patents have expired, generic versions of this compound are available on the market, as noted in various regulatory product registries.


Q: What kind of interactions with alcohol are listed for Late?

The official regulatory profile reports that no formal interactions with alcohol are specifically documented. General caution is advised regarding alcohol intake when taking any medicinal product.


Q: Can Late affect the results of a drug screening test?

Regulatory documents note that Late acts as an analytical interferent with enzymatic creatinine assays, meaning it can skew those lab results. However, no interference is documented with standard drug screening tests.


Q: Is an increase in heart rate a reported side effect of Late?

An increase in heart rate, known as tachycardia, is not listed among the documented or classified adverse reactions in the official safety profile for Late.


Q: Can Late affect mood or cause emotional changes?

The official safety profile for Late does not list any side effects related to changes in mood or emotional state.


Q: What is the difference between an intravenous (IV) and intramuscular (IM) injection of Late?

Both intravenous (IV) and intramuscular (IM) administration are listed as parenteral routes of use. Official administration information states that the IV route is typically preferred for a rapid effect, while the IM route is reserved for situations where IV administration is impractical.


Q: Is it normal to have vivid dreams after starting Late?

The safety profile for Late does not list vivid dreams or other related sleep disturbances as a documented adverse reaction.


Q: Can Late be taken indefinitely, or is it only for short-term use?

According to regulatory documentation, the duration of use is usually defined by the acute nature of the condition being treated. Treatment is intended to continue only until the bleeding has stopped. Clinical research currently covers only short to intermediate study periods, and long-term use is not fully studied.


Q: What are the most common side effects listed for Late?

The most frequently reported non-specific effects include headache, nausea, and a skin rash. Regulatory documents state that these are generally reversible. It is important to know that these common effects are often classified with a Frequency Not Known by regulatory agencies.


Q: What is the expected long-term course of treatment with Late?

The course of treatment with Late is described as typically short-term, focused on the resolution of the acute bleeding event. Official research evidence indicates that long-term effects or efficacy beyond the short to intermediate study period are not fully established.


Q: Can children or adolescents use Late?

The medicine is specifically approved for use in neonates (low-birth-weight infants) under a restricted and specific regimen. However, official information states that the use of Late in the general pediatric population (older children and adolescents) is not fully established or generally recommended.


Q: How does my eligibility to use Late get determined according to official guidelines?

Official guidelines define eligibility based on assessing a patient against the list of contraindications and specified cautions. Contraindications are conditions, such as known hypersensitivity, where the medicine must not be used.


Q: Are there any specific lab tests required before or during treatment with Late?

No specific lab tests are officially mandated before or during treatment with Late. Regulatory information does note that the medicine is an analytical interferent with enzymatic creatinine assays, which is a factor healthcare professionals must consider during lab testing.


Q: Do studies suggest Late is more effective in certain patient groups than others?

Research evidence describes patterns of efficacy across specific contexts, such as heavy menstrual bleeding and certain surgical procedures. However, regulatory reviews of the research also note inconsistency across different surgical types and uncertainty regarding certain long-term outcomes in neonates.


Q: How reliable is the research evidence for Late?

Official assessments of the research evidence indicate that certainty remains low outside of specific, short-term scenarios. Regulatory documents note that the evidence is limited in certain areas and describe findings for long-term functional measures in neonates as mixed or uncertain.


Q: Is Late approved for treating chronic conditions?

Late is primarily indicated for the control of bleeding from acute or episodic microvascular events. Its use is generally intended for a short duration until the bleeding has resolved, and it is not indicated for long-term chronic maintenance therapy.


Q: How does Late compare to placebo in clinical trials?

Clinical trials, including Randomized Controlled Trials (RCTs), have described outcomes where the medicine was shown to reduce the quantitative volume of blood loss when compared to control groups. Studies also monitored a reduction in the need for blood transfusions in certain surgical contexts.


Q: Is there a maximum time frame for treatment with Late mentioned in guidelines?

Regulatory guidelines do not specify a fixed calendar time as the maximum duration of treatment. Instead, the maximum duration is determined by the resolution of the acute condition being treated. The recommended approach involves continuing administration until the acute bleeding has stopped completely.


Q: What should I watch out for regarding liver health while on Late?

Official safety labeling notes that special consideration is given to patients with pre-existing hepatic (liver) impairment. This is because specific clinical study data for this patient population is insufficient.


Q: Does taking Late require any special precautions for sun exposure?

The official safety profile for Late does not list any specific warnings or required precautions regarding sun exposure or photosensitivity.

How should Late be stored and disposed of?

How to Store and Dispose of Late (Etamsylate)

Official regulatory documents define specific conditions for storing and disposing of Etamsylate to maintain quality and safety.


Storage Requirements

Etamsylate must be stored at or below 25°C (77°F). It is mandatory to keep the medicine in its original package to ensure protection from both light and moisture.

Do not freeze the product, and do not refrigerate it. Like all medicines, it must be stored out of the sight and reach of children.


Handling and Disposal

For the solution for injection, any unused portion remaining in the single-use vial must be discarded immediately after the dose is prepared.

Expired or unused Etamsylate must be disposed of in accordance with local regulations and is typically not permitted to be discarded in household waste or flushed down the toilet.

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

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