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Андриол

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Андриол

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Treatment option: Osteoporosis

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.

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Overview of Андриол

What is Андриол? (Andriol Testocaps)

Андриол (brand name Andriol Testocaps) is a prescription-only (Rx) oral medication, used as a form of testosterone replacement therapy (TRT). Its primary purpose is to treat adult males who have been diagnosed with low or absent endogenous testosterone, a medical condition known as male hypogonadism.

Quick Facts

Property Description
Active Ingredient Testosterone undecanoate
Form Soft Gelatin Oral Capsule (Testocaps)
Pharmacological Class Androgen (Male Sex Hormone)
Common Use Testosterone Replacement Therapy
Manufacturer Organon (various regions)

Role and Unique Formulation

The active ingredient is testosterone undecanoate, an esterified form of the hormone. This specific chemical structure is what allows the drug to be suitable for oral administration. Unlike standard testosterone, which is mostly deactivated by the liver upon ingestion, testosterone undecanoate is designed to be absorbed into the lymphatic system. This unique pharmacokinetic pathway helps it bypass the liver's initial metabolism, ensuring that the active testosterone reaches the bloodstream effectively.

As an androgen, the medication works by restoring serum testosterone levels to a normal, healthy range. This therapeutic restoration is clinically recognized to help alleviate the symptoms of hypogonadism, which can include fatigue, loss of muscle mass, decreased bone density, and low sexual desire.

The convenience of the soft gelatin capsule format is a key differentiating feature, positioning Andriol as a patient-friendly alternative to topical gels or injectable TRT options for the long-term management of testosterone deficiency.

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What side effects are possible with Андриол?

Possible Side Effects and Safety Information

The safety profile for testosterone undecanoate (Andriol Testocaps) is structured around categories of adverse reactions and specific monitoring requirements mandated by regulatory authorities.

Frequency-Classified Adverse Reactions

Adverse effects are categorized based on their rate of occurrence as documented in official prescribing information:

Classification Examples of Officially Documented Effects
Common (≥1/100 to <1/10) Increased hematocrit, increased hemoglobin, elevated Prostate-Specific Antigen (PSA), edema (fluid retention), acne, prostatic disorders, and hypertension (increased blood pressure).
Uncommon (≥1/1,000 to <1/100) Headache, depression, insomnia, decreased libido, nausea, diarrhea, and weight gain.

Serious Safety Considerations

Official labeling highlights the potential for serious adverse reactions, including an increased risk of Venous Thromboembolism (VTE), such as Deep Vein Thrombosis and Pulmonary Embolism. Additionally, the drug may accelerate the growth of existing, subclinical prostate carcinoma. Historically, high-dose and long-term androgen exposure has been associated with hepatic neoplasms (liver tumors).

Population-Specific Notes

Safety constraints apply to specific patient groups. Older adults have an elevated risk for developing or worsening benign prostatic hyperplasia (BPH) and require regular prostate monitoring. Patients with pre-existing cardiac, renal, or hepatic impairment have a higher risk of edema, which may lead to or exacerbate Congestive Heart Failure. Official documents also note that exogenous androgen use may lead to azoospermia (absence of sperm) and may potentiate sleep apnea.

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Overdose and Emergency Response

The official regulatory documentation for Андриол overdose defines distinct scenarios for excessive exposure. In the case of an acute overdose—ingesting an excessive number of capsules—the manifestations are typically transient and non-life-threatening. Officially documented symptoms for this scenario relate to the capsule's oily vehicle, primarily including nausea, vomiting, diarrhea, and oily bowel motions (steatorrhea). Regulatory guidance notes that an acute, single-event overdose is generally not considered a medical emergency requiring immediate hospitalization.

However, the warnings emphasize that serious, potentially life-threatening outcomes are associated with chronic high-dose abuse of testosterone. Such supra-therapeutic exposure is officially linked to severe systemic risks, including major cardiovascular events such as cardiac arrest, myocardial infarction (heart attack), stroke, and severe neuropsychiatric manifestations.

Overdose management officially requires the discontinuation of the drug and immediate consultation with a healthcare professional or a Poison Information Centre. Management is limited to symptomatic and supportive care, as no specific antidote is known. Immediate emergency attention must be sought if any signs of the severe cardiovascular or cerebral events linked to abuse are present.

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Therapeutic Uses of Андриол

What Андриол Treats: Main Uses and Benefits

Андриол is commonly used as a form of Testosterone Replacement Therapy (TRT) to address the systemic health problems and functional deficits resulting from a clinically confirmed deficiency or absence of endogenous testosterone (male hypogonadism) in adult men. It is indicated for conditions associated with this deficiency.

The core therapeutic context involves managing symptoms related to systemic imbalance, such as decreased sex drive and erectile dysfunction, along with non-sexual manifestations like loss of muscle mass, generalized fatigue, low bone density (osteoporosis), and accompanying depressive moods. This medication is commonly used to help with symptoms that create noticeable physiological strain, and may assist with maintaining functional stability in daily life.

“This medication is commonly used to help with symptoms that create noticeable physiological strain, and may assist with maintaining functional stability in daily life.”

By helping to normalize hormone levels, this treatment may assist with managing sexual function and capacity, may support the management of physical symptoms, and contributes to improved comfort and stability during periods of heightened symptoms. It is a relevant option when supportive symptom management is appropriate for chronic hormone deficiency.

Quick Fact: Supportive Management of Symptoms
Supports management of physical, sexual, and cognitive symptoms of male hypogonadism.
Applicable in contexts involving chronic deficiency of endogenous testosterone.
Helps patients cope more steadily with symptomatic periods and assists with maintaining functional stability.
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Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Andriol

The use of Andriol (testosterone undecanoate) is strictly governed by regulatory eligibility rules, focusing on absolute contraindications and population-specific restrictions documented in official government sources like the FDA and EMA.


Absolute Contraindications

Andriol is contraindicated and must not be used in the following populations:

  • Males with known or suspected carcinoma of the prostate or breast.
  • Women, particularly those who are pregnant (due to the risk of fetal harm).
  • Individuals with known hypersensitivity to the active substance or excipients.
  • Patients with a history of past or present liver tumors (as cited in some international monographs).

Population and Comorbidity Restrictions

  • Pediatric Use: Use is not established or not indicated for patients under 18 years of age due to the risk of premature bone maturation.
  • Geriatric Use: Use in men over 65 years involves limited clinical experience and requires special caution.
  • Organ Function: Use requires caution in patients with pre-existing cardiac, renal, or hepatic disease, or uncontrolled hypertension, due to the labeled risk of fluid retention.
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What should I know about interactions with other medicines?

Interactions with Other Medicines and Products

The interaction profile for testosterone undecanoate focuses on pharmacodynamic effects and the mandatory requirements for proper administration. Regulatory documents describe several documented interaction patterns.

Interactions Affecting Co-administered Medicines

Interacting Substance/Class Official Interaction Outcome
Oral Anticoagulants (e.g., Warfarin) May cause a change in anticoagulant activity, requiring monitoring of International Normalized Ratio (INR).
Anti-diabetic Medications (e.g., Insulin) May decrease blood glucose levels, potentially requiring a decrease in the anti-diabetic medication dosage.

Pharmacodynamic and Physiological Interactions

Co-administration with corticosteroids or Adrenocorticotrophic Hormone (ACTH) may result in an additive effect, specifically an increased risk of fluid retention. This documented risk profile requires consideration, particularly for patients with underlying cardiac, renal, or hepatic disease.

Administration-Timing Requirements

The official prescribing information includes a specific constraint concerning food intake: the capsule must be taken with food to ensure that the active ingredient achieves adequate systemic absorption and exposure. This administration requirement is critical for the intended performance of the oral formulation.

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Mechanism of Action

Andriol (testosterone undecanoate) is an oral prodrug that acts by delivering extbfexogenous testosterone to the systemic circulation. Its mechanism is initiated by a multi-step cascade culminating in the regulation of gene expression via extbfintracellular androgen receptors.


The prodrug, extbftestosterone undecanoate, is a lipophilic ester absorbed into the extbfintestinal lymphatic system, avoiding first-pass hepatic metabolism. It is then cleaved by extbfnon-specific esterases in the circulation, yielding active extbftestosterone and the metabolite extbfdihydrotestosterone (DHT).

Testosterone and DHT bind to extbfAndrogen Receptors (AR) in target cells. The activated hormone-receptor complex translocates into the nucleus, where it functions as a extbftranscription factor to modulate extbftarget gene expression. This genomic action modifies key pathways involved in cellular extbfanabolism (affecting protein synthesis and bone density regulation) and extbferythropoiesis (red blood cell formation), resulting in the extbfmodulation of physiological signaling patterns toward baseline set points.

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Dosage and Administration Information

How to Use Андриол

Andriol (testosterone undecanoate) is an oral medication that follows a structured administration protocol for the management of male hypogonadism.

Administration and Dosage Protocol

The approved route of administration is oral using the soft gelatin capsule. A core principle of its use is that the capsules must be taken with a meal to ensure proper absorption, as the active ingredient relies on dietary fat for its unique pharmacokinetic pathway. The total daily dose is required to be administered in divided doses, typically split between the morning and evening, to maintain stable hormone levels.

Dosing Phase Typical Daily Range Administration Detail
Initial Dose 120 mg to 160 mg Administered in divided doses for the first 2-3 weeks.
Maintenance Dose 40 mg to 120 mg Determined based on laboratory assessment.

Procedural and Population Constraints

The treatment begins with an initial phase using the higher starting dose for a short duration. Following this period, the maintenance dose is established through dose titration, where the dosage is adjusted to the lowest effective level based on measured blood testosterone concentrations. The capsules must be swallowed whole with liquid and should not be crushed or chewed, a constraint tied to the formulation.

Regarding population-specific use, while the medicine is intended for adult males, it is noted that a lower initial dose may be necessary for older adults (over 65 years). Furthermore, the medicine is not indicated for use in pediatric patients or prepubertal boys, strictly reserving administration for the adult population.

This structured approach, which includes the food requirement and split dosing, defines the standardized protocol for long-term use.

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Recent Clinical Evidence

Research evidence / Overview of studies for Андриол

Evidence for Testosterone Replacement in Male Hypogonadism

The core evidence for oral testosterone undecanoate (Андриол) comes from Randomized Controlled Trials (RCTs) and systematic research where the medication was evaluated in adult men with confirmed low testosterone levels, a condition known as male hypogonadism. These trials were designed to assess whether the medication was associated with the achievement and maintenance of hormone levels within the typical range seen in healthy adult males. Research also included studies that observed patients for extended time intervals to monitor the persistence of findings.

In these studies, researchers monitored the pharmacokinetics, which is how the body handles the medicine, and documented patterns in serum total testosterone concentrations. Studies reported measurements indicating the achievement and maintenance of hormone levels within the target range over the observed time intervals. The research highlights changes measured during the study period concerning outcomes related to systemic or functional imbalance, such as patient-reported scores for sexual function and general well-being.


Primary Endpoints Studied: Hormone Levels and Functional Scores

Research primarily focused on two main areas. First, studies monitored the specific blood levels of testosterone to check that they were consistently within the normal range. This is known as the pharmacokinetic (PK) profile. Second, research examined changes in symptoms that are commonly associated with low testosterone. This included using standardized questionnaires, such as the IIEF scale, to examine patient-reported outcomes describing perceived discomfort and changes in sexual desire. Findings describe patterns observed in the studies related to how patients reported their experience regarding symptoms like fatigue and changes in mood.

Secondary Outcomes: Body Composition and Bone Health

Beyond the primary hormone and symptom goals, researchers also examined the impact of the medicine on certain systemic health parameters. Research examined changes in body composition, tracking measurements of lean body mass and body fat mass. Furthermore, studies explored changes in Bone Mineral Density (BMD) in observed patient groups that included individuals with low bone density. The data reported patterns related to these physical changes, which were generally observed after intermediate study durations of six to twelve months.

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Frequently Asked Questions (FAQ)

Common questions about Андриол (FAQ)

Q: Does taking Андриол help increase muscle mass and performance?

A: Studies and official information indicate that the main active ingredient, testosterone undecanoate, is used to replace the body's natural testosterone when it is lacking. Regulatory sources state this therapy can help restore normal masculine characteristics, which may include changes in muscle development and body composition, when the underlying deficiency is treated. The primary goal of the therapy is hormonal restoration, not athletic enhancement.


Q: What is the typical time frame to see effects from Андриол?

A: According to the official product information, the effects of testosterone replacement therapy, like with Андриол, can vary greatly among individuals. While the therapeutic benefits often take time to become apparent, regulatory documents do not specify an exact, universal time frame for everyone to observe effects, as this depends on the individual's specific condition and response to treatment.


Q: Can I drink alcohol while I am using Андриол?

A: Official product information for Андриол does not specifically prohibit the consumption of alcohol. However, alcohol use may potentially affect overall liver function, and regulatory documents caution that this medicine is primarily processed through the liver and lymphatic system. Regulatory sources generally advise caution when consuming alcohol while on medication, especially those processed by the liver.


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

A: Regulatory documents state that if a dose is missed, a person should not take a double dose to make up for the forgotten one. The official advice is to simply continue with the usual dosing schedule at the next designated time. Patients should always refer to the specific instructions provided by their prescriber regarding missed doses.


Q: How should I store Андриол capsules?

A: According to the official product information, Андриол capsules should be stored in their original packaging to protect the medicine from light and moisture. Regulatory documents typically advise keeping the medicine below a certain temperature and away from children. The specific storage instructions found on the product's outer packaging should always be followed.


Q: Is it required to have routine blood tests while on Андриол?

A: Official product information indicates that regular medical check-ups and laboratory tests are necessary before and throughout the course of treatment with Андриол. These tests are essential to monitor various markers, such as hemoglobin, hematocrit, and liver function, and ensure the testosterone level remains within the appropriate range. This monitoring helps track changes in various markers and assess the safety of the therapy.


Q: How does Андриол affect cholesterol levels and cardiovascular health?

A: Regulatory documents state that treatment with medicines like Андриол may lead to changes in blood lipid levels, which includes cholesterol. Official product information notes that these changes should be regularly monitored through blood tests during therapy. Concerns regarding cardiovascular health and lipid levels are part of the required consultation with a healthcare professional.


Q: Can Андриол cause mood changes or affect mental health?

A: Studies and official information report that changes in mood are a recognized, though uncommon, potential side effect of testosterone replacement therapy. Regulatory documents mention mood disturbances, including irritability and depression, among the possible reactions. Patients should discuss any changes in mood or behavior with their healthcare provider.

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How should Андриол be stored and disposed of?

Storage and Disposal of Andriol Testocaps

Storage of Andriol Testocaps (testosterone undecanoate) is strictly governed by regulatory requirements to ensure product integrity and safety.

  • Temperature and Protection: The capsules must be stored below 30 C and not refrigerated or frozen. To protect the medicine from light, it must be kept in the original package and the outer carton.
  • Child Safety: It is a mandatory requirement to store the medication out of the sight and reach of children.
  • Disposal: Unused or expired Andriol must be disposed of in accordance with local requirements. The preferred method is typically returning the medicine to a pharmacy for an official drug take-back program. Due to the active ingredient's classification as a controlled substance in many regions, secure handling and disposal protocols are required.

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

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