Ледибон

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Ледибон

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Medically reviewed

Laura Arias

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 Ледибон

Quick Facts

Property Description
Active ingredient Tibolone (INN)
Form Oral Tablet
Pharmacological class Hormone Replacement Therapy (HRT) Agent
Common use Supporting postmenopausal hormonal balance
Origin Synthetic steroid derivative

What Type of Medicine is Ледибон?

Ледибон is a prescription-only synthetic steroid preparation available as an oral tablet. Its active ingredient is Tibolone. Pharmacologically, the medicine is classified as a Hormone Replacement Therapy (HRT) agent, specifically identified as a Selective Tissue Estrogenic Activity Regulator (STEAR). Tibolone is used for hormone replacement in postmenopausal women, and the medicine is medically recognized for its role in managing the effects of hormone loss after menopause.

Unlike conventional HRT, which involves standard estrogen and progestin compounds, Ледибон is a single-component product. This distinct approach focuses on providing balanced hormonal support tailored for postmenopausal women, a primary differentiating factor in its use profile.


The Unique Composition and Origin of Tibolone

The core constituent of Ледибон is the synthetic steroid Tibolone, a chemically synthesized derivative. Tibolone itself functions as a "pro-drug": the substance is rapidly metabolized within the body into three primary active compounds, or metabolites. These active metabolites are responsible for the drug's balanced actions, as they exhibit estrogenic, progestogenic, and weak androgenic activity.

The tissue-selective nature of Tibolone is a key differentiation, meaning its impact is modulated differently across organs like bone, brain, and the reproductive tract, rather than acting uniformly across all hormone-sensitive tissues. This property is integral to the product's design.


General Purpose: Supporting Postmenopausal Hormonal Balance

The fundamental general purpose of Ледибон is to help manage the physiological symptoms and consequences arising from the significant decline in natural hormone production following menopause. By exerting selective, triple-action regulation of hormone receptors, the medicine generally assists in the relief of common discomforts associated with the climacteric syndrome. This activity also extends to providing support for the maintenance of bone mineral density, a critical consideration in postmenopausal health, and is clinically recognized for addressing these two core areas of postmenopausal health management.

Regulatory References

  1. Tibolone entry in NIH LiverTox

What side effects are possible with Ледибон?

Possible Side Effects and Safety Information

The official safety profile for Ледибон (Tibolone), an HRT agent, is defined by adverse reactions classified by frequency and by specific, documented serious risks, as outlined in government regulatory documents.

Documented Adverse Reactions

Side effects are classified according to regulatory standards based on their observed frequency. Common reactions, documented to occur in more than 1 in 100 women, include vaginal discharge, endometrial thickening, postmenopausal bleeding or spotting, breast tenderness, and weight gain. Uncommon reactions, seen in less than 1 in 100 women, may involve fluid retention (oedema), acne, or generalised itching (pruritus).

Adverse events are formally grouped by the body systems affected, including Reproductive system and breast disorders, Vascular disorders, Gastrointestinal disorders, and Metabolism and nutrition disorders.

Serious Adverse Reactions and Safety Constraints

The regulatory label identifies major, serious risks associated with Tibolone use. These include an increased risk of Venous Thromboembolism (VTE), such as Deep Vein Thrombosis and Pulmonary Embolism, and an increased risk of Stroke, particularly in women over 60 years. Use is also associated with an increased risk of certain cancers, specifically Endometrial Cancer and Breast Cancer, with the risk proportional to the duration of exposure.

Safety documents also define specific limitations. The medicine is contraindicated (must not be used) in individuals with a history of active clotting disorders, severe liver disorder, undiagnosed genital bleeding, or known estrogen-dependent malignant tumours.

Time-Related Safety Patterns

Specific risks are tied to the duration of use: the risk of VTE is documented as more likely in the first year of use, while cancer risk increases with the duration of intake. Therapy must be immediately discontinued if conditions such as jaundice or a significant, unexplained increase in blood pressure arise.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information states that acute ingestion of a dose exceeding the prescription amount is generally unlikely to cause serious harm beyond the medicine's expected effects. This classification is based on data indicating low acute toxicity.

Documented Manifestations and Actions

The required management for overdose, as stated in regulatory documents, is limited to symptomatic and supportive treatment, reflecting the fact that no specific antidote is known for this medicine. The most probable and documented clinical sign associated with hormonal overexposure from irregular intake is vaginal bleeding or spotting.

When Urgent Medical Help is Required

While acute overdose is not typically severe, immediate medical attention is required if the user experiences severe or life-threatening symptoms associated with the drug’s general risk profile. Users must seek a doctor immediately if they notice signs of a blood clot, such as:

  • Painful swelling and redness in a leg
  • Sudden chest pain
  • Difficulty in breathing

In the event of accidental excessive intake, users should contact a doctor or pharmacist for advice regarding the supportive management required.

Therapeutic Uses of Ледибон

What Ледибон Treats: Main Uses and Benefits

This medicine is generally used to provide focused, short-term assistance in managing symptomatic discomfort associated with certain conditions. The primary therapeutic domain is focused on symptomatic support, which may be applied across a range of conditions. This focus aligns with the established category of symptomatic care.


Supportive Management for Acute & Episodic Symptoms

This medicine is commonly used for managing symptom clusters that may become intense or disruptive, such as symptoms related to physical discomfort, systemic imbalance, or heightened physiological activity. Common clinical scenarios include support during acute episodes, recurrent manifestations, and phases where symptoms interfere with daily functioning.

Ледибон is commonly used to provide supportive relief when symptoms intensify temporarily. It is relevant when short-term symptomatic assistance is needed to ease the overall symptom load and may assist with maintaining functional stability. This makes it useful in situations involving episodic manifestations, acute symptom patterns, and conditions where temporary functional strain is experienced.


Quick Fact: Relief for Temporary Functional Strain

Eligibility and Restrictions for Use

Who Can and Cannot Use Ледибон? (Official Regulatory Information)

Eligibility for Ледибон (Tibolone) is strictly defined by regulatory guidelines, focusing primarily on a patient's postmenopausal status and the absence of specific high-risk health conditions.

Eligibility Status Description (Based on Regulatory Labeling)
Populations Allowed Postmenopausal women only, at least 12 months after their last natural menstrual period. Use may commence immediately after surgical menopause.
Age-Related Rules Not recommended for the pediatric population; use is not authorized. There is limited experience and increased caution regarding stroke risk for women over 60 to 65 years of age.

Contraindicated Populations and Conditions

The medicine is absolutely prohibited for patients who have any of the following conditions, as stated in the official prescribing information:

  • Pregnancy and Lactation: Contraindicated during both pregnancy and breastfeeding.
  • Malignancy History: Known, suspected, or past history of breast cancer or any other oestrogen-dependent malignant tumors (e.g., endometrial cancer).
  • Thromboembolic Disease: Current or previous venous thromboembolism (e.g., DVT, pulmonary embolism) or arterial thromboembolic disease (e.g., stroke, heart attack, or TIA).
  • Liver Function: Acute liver disease or a history of liver disease where liver function tests have failed to return to normal.
  • Uterine Conditions: Undiagnosed vaginal bleeding or untreated endometrial hyperplasia.

Patients with conditions like Systemic Lupus Erythematosus (SLE), hypertension, diabetes mellitus, or a history of endometrial hyperplasia require close regulatory supervision during use.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information describes specific interaction patterns for Tibolone, the active ingredient in Ледибон, primarily concerning its metabolism and effects on blood coagulation. All interaction statements are derived strictly from government drug labels.


Pharmacokinetic and Metabolic Interactions

Co-administration with strong inducers of the CYP3A4 enzyme is officially documented to increase the rate of Tibolone's metabolism, which results in reduced plasma exposure of its active metabolites. Medicines identified as CYP3A4 inducers that may cause this pharmacokinetic interaction include Rifampicin, Carbamazepine, and Phenytoin. Conversely, inhibitors of CYP3A4, such as Itraconazole, may potentially increase the circulating concentration of Tibolone and its metabolites. The herbal product St John's Wort (Hypericum perforatum) is also documented as an enzyme inducer that may reduce the effectiveness of this medicine.


Pharmacodynamic and Coagulation Interactions

Tibolone may enhance the activity of coumarin-derivative anticoagulants, such as Warfarin. This pharmacodynamic effect can lead to an increase in prothrombin time and the International Normalized Ratio (INR). Regulatory constraints require that coagulation status and parameters must be carefully monitored when these medicines are used together.


Administration Restrictions

Official regulatory documents establish a formal restriction that a separate progestogen should not be co-administered with this medicine due to the inherent hormonal activity of Tibolone and its metabolites.

Mechanism of Action

The drug Ледибон (Ladybon) is metabolized into three distinct metabolites that define its complex, tissue-specific action as a Selective Tissue Estrogenic Activity Regulator (STEAR). The mechanism involves modulation across three key mechanistic domains.

Selective Steroid Receptor Modulation

Its metabolites function as agonists or antagonists on estrogen, progestogen, and androgen receptors. This targeted activity initiates or suppresses signaling sequences only in specific receptor-expressing tissues, which results in the selective modulation of signaling patterns and defines the differential biological activity of the metabolites.

Intracrine Hormone Pathway Regulation

Action is refined by metabolite influence on local enzyme systems within target cells. By modulating enzymes that activate or inactivate estrogens, the drug modifies early molecular steps that control the intracrine (inside the cell) availability of active hormones. This restricts the downstream effects of elevated mediator activity and enables the re-establishment of a regulated signaling state within the targeted pathways.

Central Neurotransmitter Pathway Engagement

Beyond hormonal regulation, the drug engages central mechanisms that modulate overactive or dysregulated processes within the brain, particularly in the hypothalamus. This involves an influence on specific neurotransmitter systems, which leads to an altered dynamic in central regulatory signaling that influences pathways associated with thermoregulation and emotional processing.

Dosage and Administration Information

How to Use Ледибон

The administration of Ледибон, which contains the active ingredient Tibolone, is standardized for consistent use. The medicine is administered as a fixed, oral dose using a tablet formulation. The standard regimen specifies one 2.5 mg tablet per day, taken in a continuous daily schedule without interruption.


Administration Protocol

The instructions define a specific pattern for consistent use. The tablet should be swallowed whole with water or another drink, and it is advised to take it preferably at the same time every day to maintain steady plasma concentrations.

Initiation Timing is a critical constraint: for women undergoing natural menopause, treatment should not be commenced until at least 12 months after the last natural menstrual bleed. However, women who have undergone surgical menopause may initiate use immediately. The overall principle guiding duration of use is to employ the lowest effective dose for the shortest necessary period.


Rules for Missed Doses and Specific Populations

Established protocols exist for managing timing deviations. A missed dose should be taken as soon as remembered, unless the delay is more than 12 hours overdue. If the 12-hour window is exceeded, the missed dose is skipped, and the regular schedule is resumed with the next dose; two tablets must not be taken to compensate. Regarding specific populations, no dose adjustment is specified as necessary for older adult women, and the medicine is not indicated for use in the pediatric population.

Recent Clinical Evidence

Research evidence / Overview of studies

Overview of Study Focus and Goals

Clinical studies have evaluated the drug's effect on menopausal symptoms, bone mineral density, and quality of life in postmenopausal women. The drug is classified as a Selective Tissue Estrogenic Activity Regulator (STEAR). Studies assessed whether the drug's use correlated with clinical changes, including an evaluation of its action on steroid hormone receptors in various tissues.

Scope of Patient Groups Studied

Trial participants have included women with established postmenopausal symptoms, typically evaluated over short-term (up to 6 months) and intermediate (up to 2 years) treatment courses. Long-term studies, such as the LIFT trial, have also provided data, primarily focusing on women over the age of 60 with osteoporosis.

Study data reported on the incidence of adverse events in adults, with specific attention paid to outcomes related to the endometrium, breast tissue, and cardiovascular system.

Key Findings from Clinical Trials

Symptom and Bone Mineral Density Outcomes

  • Vasomotor Symptoms: Studies have evaluated the drug's effect on the frequency and severity of hot flushes and sweating. Reductions were reported in trial participants compared to placebo groups.
  • Bone Mineral Density (BMD): Research has explored the drug's association with a change in BMD in the lumbar spine and femoral neck. Reports suggest an increase in BMD compared to non-active controls over a 24-month period.
  • Sexual Function: Trials have also evaluated the effect on sexual well-being using patient-reported outcome measures.

Comparative Outcomes and Safety Context

In some studies comparing the drug to conventional Hormone Therapy (HT), no significant difference was observed in the effect on BMD. However, in the LIFT trial of older women with osteoporosis, an increased risk of stroke was observed compared to placebo, leading to the early termination of that specific study. The overall evidence on long-term outcomes, including cardiovascular events and certain cancer risks, remains subject to ongoing evaluation.

Frequently Asked Questions (FAQ)

Common questions about Ледибон (FAQ)

Q: Does Ледибон help with menopausal mood swings?

Official studies have specifically examined how the active ingredient in Ледибон may influence mood during menopause. Research evidence suggests a beneficial influence on mood parameters for women experiencing climacteric complaints when compared with placebo.

Q: Can Ледибон affect a woman’s libido or sexual desire?

Research has focused on the effect of the active ingredient on sexual function and libido (sexual desire). Studies indicate that taking Ледибон is associated with favorable changes in these areas. Some studies suggest a notable difference in these outcomes compared to other hormone therapies.

Q: Is it expected to have some bleeding or spotting when first starting Ледибон treatment?

Official product information states that irregular bleeding or spotting is an expected possibility during the first three to six months of use. Official guidelines describe situations where consultation with a healthcare professional is specified if this bleeding continues beyond six months, or if it starts after the initial six-month period of use.

Q: Is it normal to feel breast tenderness when starting Ледибон?

Breast tenderness is classified as a common side effect, especially when beginning treatment with the medicine. Official information notes that this side effect is often temporary and tends to subside within the first few months of use.

Q: Why do some women transition from conventional HRT to Ледибон?

Ледибон is recognized as a distinct treatment option that may be considered by women who have not tolerated conventional hormone therapy well. It is often considered by those seeking favorable changes in low libido or mood, or by those experiencing persistent issues like breast pain or certain bleeding problems with traditional treatments.

Q: Does Ледибон help with sleep disturbances related to menopause?

The medicine works in part by influencing central regulatory signals linked to thermoregulation, which is related to common issues like hot flashes and night sweats. Clinical trials for similar hormone treatments have also sometimes assessed its role in addressing sleep disturbances.

Q: What is the function of Ледибон in the body?

The main function of the active ingredient, Tibolone, is to help substitute for the natural decline of estrogen that occurs after menopause. This is achieved through selective effects on certain tissues, which can be favorable for areas like the bone, brain, and vaginal health.

Q: Can Ледибон cause a return of menstrual bleeding?

The medicine is strictly intended only for women who are postmenopausal, defined as having no natural period for at least 12 months. Its use may cause irregular bleeding or spotting, but it is not designed to restart or normalize a regular menstrual cycle.

Q: How long is treatment with Ледибон typically recommended?

Official guidance suggests that treatment duration often ranges from two to five years for the management of menopausal symptoms. The length of use requires a continuous, individualized assessment of benefits and risks by a prescribing authority.

Q: How long does it typically take to feel an improvement in hot flashes after starting Ледибон?

Patient information indicates that it may take up to three months of continuous daily use before the medicine's full effect is typically observable in improving symptoms, such as the frequency or severity of hot flashes.

Q: Does Ледибон affect the results of routine laboratory or blood tests?

Official product information notes that the active ingredient may influence the levels of certain substances in the blood, such as sex hormone binding globulin (SHBG). This change is known and may potentially influence the results of some routine laboratory or blood tests.

Q: Are there known interactions between Ледибон and anti-epileptic drugs?

Regulatory documents cite certain anti-epileptic drugs, including Carbamazepine and Phenytoin, as having known interactions with Ледибон. These medicines may be classified as strong enzyme inducers, which could potentially reduce the concentration and, therefore, the effectiveness of the active metabolites of Ледибон.

Q: How quickly do the benefits of Ледибон wear off after discontinuing the drug?

Some women may experience a return of menopausal symptoms after discontinuing treatment. Clinical trial data focused on bone health suggests that the rate of bone mineral density loss may increase in the first year after stopping the medicine, compared to individuals who were not taking the medicine.

Q: Is Ледибон intended to prevent all types of fractures related to osteoporosis?

Research evidence indicates that Ледибон is associated with a reduction in the risk of certain fractures in older postmenopausal women with low bone density. Studies have included data on the prevention of both vertebral (spine) and non-vertebral fractures.

Q: Is Ледибон used for conditions other than menopausal symptoms in some countries?

While the primary purpose of Ледибон is for supporting postmenopausal hormonal balance and preventing osteoporosis, the active ingredient is officially indicated for the treatment of conditions such as endometriosis in certain countries outside of its common uses.

Q: Is Ледибон considered a first-line treatment for osteoporosis prevention in postmenopausal women?

Regulatory guidance suggests that Ледибон is typically considered for osteoporosis prevention in women who are at high risk of fractures and who cannot use other established medicines recommended for this purpose. This suggests it is not universally considered a first-line therapy.

Q: What is the current scientific consensus on the use of Ледибон long-term?

International expert consensus recognizes the active ingredient as a recognized option for managing climacteric complaints. Official guidance focuses on the need for continuous assessment of individual benefits versus potential risks, as certain risks may increase with duration of intake.

How should Ледибон be stored and disposed of?

How to Store and Dispose of Ledibon (Tibolone)

The storage and disposal of Ledibon tablets must follow the requirements outlined in the official regulatory product information.

Category Regulatory Storage and Disposal Requirements
Temperature Store at a temperature not exceeding 25°C to maintain product stability.
Protection Must be kept in the original package to protect the tablets from light and moisture.
Child Safety Store the medicine strictly out of the sight and reach of children.
Disposal Rule Unused or expired tablets must not be thrown away with household waste or disposed of in wastewater. Disposal must be carried out according to local regulatory requirements to help protect the environment.

Storage in the original container is necessary to ensure the medicine remains stable up to its stated expiry date. Disposal should involve authorized collection methods, such as a pharmacy.

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

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