What Androcur-100 Treats: Main Uses and Benefits

Cyproterone acetate is generally used across therapeutic domains that require potent hormonal intervention for symptoms related to systemic imbalance caused by excessive male hormones. This medication is considered relevant for managing severe physical signs of hyperandrogenism in women, such as hirsutism, androgenic alopecia, severe acne, and seborrhoea. It is also applied in men for the long-term palliative management of advanced prostatic carcinoma and for addressing pathologically elevated sexual drive.

In these scenarios, the primary use contributes to easing the overall symptom load associated with progression or severe manifestations. One key benefit noted across clinical use is:

“The primary use contributes to easing the overall symptom load associated with these physical manifestations, which supports general well-being during symptomatic phases.”

Quick Fact: Relief for Androgen Excess Symptoms

Category	Typical Context	Patient Benefit
Systemic Imbalance	Palliative care for advanced cancer; management of severe chronic hyperandrogenism.	Supports functional stability and helps ease the symptom burden.
Symptom Clusters	Excessive hair growth, severe acne, post-castration hot flushes, elevated sexual drive.	Relevant for easing the disruptive nature of heightened physiological symptoms.

The medication is often used when symptoms that interfere with daily functioning become more noticeable, providing supportive assistance.

Androcur-100 (cyproterone acetate) is an anti-androgen medication prescribed to adults for specific conditions.

Approved Users

This medication is primarily used in adult males for:

• Palliative treatment of advanced, inoperable prostate cancer.
• Reduction of a severely increased sex drive (hypersexuality) in specific contexts.

The 100 mg dose is typically reserved for the treatment of prostate carcinoma.

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Contraindications (Who Cannot Use)

Androcur-100 is contraindicated, meaning it must not be used, in patients who have certain medical conditions or characteristics. Use is generally prohibited for patients with:

Condition Category	Examples of Specific Conditions
Liver Issues	Current liver disease, previous or existing liver tumors (excluding certain prostate cancer metastases), Dubin-Johnson or Rotor syndromes.
Brain Tumors	Current or history of meningioma (a usually benign brain tumor).
Circulatory Issues	Current or history of thromboembolic events (blood clots), or severe diabetes with vascular changes.
Other	Severe chronic depression, wasting diseases (except in inoperable prostate cancer), pregnancy, or breastfeeding.

Androcur-100 is not recommended for use in male children and adolescents under 18 years of age due to a lack of safety and efficacy data, and because it should not be given before the conclusion of puberty.

Interactions with Other Medicines and Products

The official interaction profile for Androcur-100 (cyproterone acetate) is defined by its involvement in the body's metabolic pathways and specific pharmacodynamic risks.

Documented Interaction Patterns

The primary concern involves pharmacokinetic interactions with substances that affect the CYP3A4 liver enzyme. Co-administration with strong CYP3A4 inhibitors, such as Ketoconazole or Itraconazole, is officially expected to increase the systemic exposure of cyproterone acetate. Conversely, medicines classified as strong CYP3A4 inducers, including Rifampicin and the herbal product St. John's Wort, are expected to reduce the drug's plasma levels.

Interaction Type	Interacting Substance/Class	Official Outcome
Pharmacokinetic (Exposure)	Strong CYP3A4 Inhibitors	Increases Cyproterone acetate exposure
Pharmacokinetic (Exposure)	Strong CYP3A4 Inducers	Reduces Cyproterone acetate exposure
Pharmacodynamic (Risk)	HMG-CoA Reductase Inhibitors (Statins)	Increased risk of myopathy/rhabdomyolysis

Other Relevant Interactions and Restrictions

The medicine itself is also documented to potentially inhibit the CYP2C8 enzyme, which can lead to an increase in the exposure of co-administered medicines, such as Thiazolidinediones (e.g., Pioglitazone). A specific restriction notes that use is contraindicated in patients with a current or past history of Meningioma. Furthermore, the official label states that the consumption of alcohol may diminish the medicine's central drive-reducing effects. In patients with hepatic impairment, clearance of the medicine is reduced, which can increase systemic exposure.

Dual Mechanism: Receptor Antagonism and Central Modulation

Cyproterone acetate exerts its effect through a specific dual mechanism that targets the Androgen Receptor (AR) and the Hypothalamic-Pituitary-Gonadal (HPG) axis. The drug acts as a competitive antagonist at the AR, physically blocking the binding of male hormones in peripheral tissues.

Simultaneously, its progestogenic action modulates the HPG axis by acting as an agonist at the Progesterone Receptor. This central interaction intensifies the negative feedback on the pituitary gland, suppressing the release of gonadotropins (LH and FSH) required for endogenous androgen synthesis.

This complementary action initiates signaling sequences that result in the physiological de-stimulation of androgen-dependent processes. The peripheral antagonism reduces the downstream effect of hormonal stimulation at the cellular level, while the central modulation decreases the systemic availability of the signaling molecules themselves. This establishes an antiandrogenic state throughout the body.

Administration Route and Dosing Principles

The administration of Androcur-100 involves the oral intake of the 100 mg tablet, which is the route for this specific formulation. The total daily dose must be divided and taken as two or three separate doses per day. To ensure proper administration, the tablets must be swallowed whole with some liquid immediately after a meal. Regularity is maintained by taking the medication at approximately the same time each day.

Dosing Regimens

The standard dosing regimens are set according to the therapeutic context:

Indication	Daily Dose Range	Frequency
Advanced Prostatic Carcinoma	200 mg to 300 mg	Divided into 2–3 doses
Reduction of Sexual Drive in Men	Starting dose: 100 mg. Maximum: 300 mg. Maintenance: lowest effective dose (e.g., 50 mg).	Divided into 2–3 doses

Duration and Procedural Rules

For patients receiving treatment for prostatic carcinoma, the dose is generally not reduced after improvement. For all other uses requiring dose reduction or discontinuation, the change must be gradual, employing small decrements (e.g., 25 mg to 50 mg) over several weeks to maintain therapeutic stability. If a dose is missed, a double dose should not be taken to compensate. The medication is not recommended for use in male patients under 18 years of age.

Research Evidence / Overview of Studies

This section outlines the types of clinical studies that have examined the properties and findings associated with the drug. It is a descriptive summary of research activities, not a substitute for professional medical advice.

Drug Action and Initial Trials

Studies investigated the drug's activity in modulating specific receptors within the nervous system. The compound, cyproterone acetate, acts as an anti-androgen, suppressing the effects of male sex hormones.

Initial phase 1 and 2 clinical trials investigated whether the drug's administration led to improvement in primary symptoms. These early studies focused on identifying preliminary indicators of finding and assessing initial safety parameters in small groups of participants.

Key Clinical Study Findings

Primary Efficacy Studies

A number of randomized controlled trials (RCTs) evaluated whether there was a reduction in a key clinical measure after treatment, compared to a placebo or other active control.

• Duration and Onset: One study assessed the onset and duration of any reduction in symptoms, with participants monitored over a period of 12 weeks. Findings were mixed regarding the time taken for a measurable change to occur.
• Patient Subgroups: Later studies have evaluated the findings associated with the treatment on individuals across various age groups and with differing symptom severities. Subgroup analysis explored the potential findings in individuals with chronic conditions. Evidence remains limited regarding whether the findings observed differed significantly across these populations.

Combination Therapy Research

Another approach studied the combination of the drug with standard non-pharmacological management. Research explored whether this combination was associated with a reduction in pain and restoration of function compared to the drug alone or standard care alone. Results from this limited research need further investigation.

One study compared the treatment to a different class of existing therapeutic agents. The findings of this single comparison trial were inconclusive and require replication.

Safety and Tolerability Profile

Clinical data has been gathered from all study phases to understand the drug's safety profile. The analysis included data on all observed adverse events, which were categorized by frequency and severity across the study population.

Limitations of Current Evidence

It is important to note that most available evidence comes from short-term trials (lasting under 16 weeks). Research continues to investigate the long-term effects and safety findings. Further, the patient populations within the studies often do not fully represent the diversity of individuals who may receive this drug.

Common questions about Androcur-100 (FAQ)

Q: Does Androcur-100 help with hot flashes?

Official information for prostate cancer treatment suggests the medication may be used in combination with other treatments to manage associated symptoms, such as hot flushes or sweats. However, the drug’s primary purpose, according to regulatory documents, is not the treatment of hot flushes itself.

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Q: Is Androcur-100 generally taken long-term?

Regulatory documents indicate that the risk of certain serious effects, such as meningioma (a type of tumor), is associated with prolonged exposure and increasing cumulative dose, which typically occurs over several years. The overall duration of treatment is determined by the prescribing physician based on the specific indication and risk assessment.

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Q: Does taking Androcur-100 affect mood or mental health?

Depressed mood and emotional disturbances are documented as possible side effects in the official safety profile. Furthermore, official restrictions indicate that the medication is contraindicated (should not be used) in patients with severe chronic depression.

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Q: Is it true that Androcur-100 can change body fat distribution?

Weight change (gain or loss) is a commonly reported side effect. While official labels do not explicitly detail changes in body fat distribution, reported effects related to this area include general weight changes and the development of gynecomastia (breast enlargement in men).

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Q: Are there any specific blood tests required before starting Androcur-100?

Official safety information states that liver function tests should be performed before starting treatment. Regulatory guidance indicates that these tests should also be performed at regular intervals during treatment and whenever signs suggestive of liver problems are present.

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Q: Does Androcur-100 affect fertility?

A very common effect in men is the reversible inhibition of sperm production, known as spermatogenesis. Official documents note that fertility concerns are important and generally emphasize the value of discussing these with a physician before starting treatment.

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Q: Why do official documents sometimes mention Androcur-100 for conditions besides prostate issues?

Official product information specifies that the medication is approved for use in adult males for two main purposes: the palliative treatment of advanced prostate cancer and for the reduction of severely increased sex drive (hypersexuality) in specific contexts.

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Q: Are there specific symptoms that require immediate medical attention while using Androcur-100?

Official patient information lists symptoms described as serious that may require immediate medical attention. These include symptoms described in the official patient information, such as yellowing of the skin or eyes (jaundice), severe abdominal pain, sudden severe headache, or signs of blood clots like chest pain or difficulty breathing.

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Q: Can Androcur-100 cause changes in vision?

Changes in vision, such as blurriness or seeing double, are mentioned in official patient safety information. Official patient information notes that these symptoms are among those that should be reported promptly to a doctor.

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Q: Is Androcur-100 available over the counter in any country?

Across regulatory jurisdictions, the medication is consistently classified as a prescription-only medicine (POM). It is not available for purchase over the counter and requires a doctor's prescription.

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Q: Does Androcur-100 have any warnings regarding driving or operating machinery?

Official warnings advise caution when driving or operating machinery because the medicine may cause tiredness and can impair the ability to concentrate. Patients are advised to know how they react to the medication before engaging in such activities.

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Q: Can Androcur-100 be used by patients who have had a stroke?

The official product information lists a current or history of cerebrovascular accidents (such as a stroke) as a contraindication. This means the medicine should not be used in this situation due to the documented risk of thromboembolic events.

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Q: Is there any research looking at Androcur-100 and bone health?

Official safety data indicates that, similar to other forms of long-term androgen deprivation therapy, the medication may be associated with the weakening and thinning of bones, known as osteoporosis. This potential long-term effect is monitored.

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Q: Does Androcur-100 have a risk of causing blood clots?

Yes, official safety documents list the occurrence of thromboembolic events (blood clots) as a reported serious safety consideration for patients using this medication.

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Q: How does Androcur-100 affect the body's natural hormone production?

The medication affects the body's natural hormone production by influencing the brain's control centers (the hypothalamus and pituitary gland). This action decreases the body's natural output of male sex hormones.

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Q: Are there specific lifestyle changes that improve the effects of Androcur-100?

For the specific indication of reducing severely increased sex drive, official information states that the medicine should be supplemented by other measures, such as psychotherapy and sociotherapy, to help support personal and social reorientation.

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Q: Is Androcur-100 associated with weight changes?

Yes, weight change (either gain or loss) is consistently listed as a common adverse reaction in official safety profiles for the medication.

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Q: Are the side effects of Androcur-100 reversible?

Official documents note that certain effects are reversible after discontinuing the medication. These include the reduction of sexual drive and potency, as well as the inhibition of gonadal function.

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Q: Do official sources describe any specific dietary considerations for patients on Androcur-100?

The official instructions require the tablets to be taken immediately after a meal. Additionally, guidance for managing certain side effects, like hot flushes, may suggest avoiding things like caffeine and alcohol.

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Q: What type of medical specialist usually prescribes Androcur-100?

Official prescribing guidelines indicate that the medicine should be prescribed and managed by a qualified physician experienced in the use of hormonal therapy. This often means a specialist familiar with prostate cancer treatment or hormonal conditions.

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Q: How quickly can someone expect to see effects from Androcur-100?

Clinical trials have monitored participants over periods such as 12 weeks to assess the onset of symptom changes. Evidence regarding the precise time it takes for a measurable change to occur is varied.

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Q: Does alcohol consumption need to be restricted while using Androcur-100?

Official information advises caution regarding alcohol. Consumption of alcohol may reduce the medication's central effect of decreasing an abnormal sex drive and may also worsen feelings of tiredness or difficulties with concentration.

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Q: Can Androcur-100 be used by people who have diabetes?

Patients with diabetes require strict medical supervision because the medicine can alter the body's requirement for anti-diabetic medications or insulin. It is also contraindicated in patients with severe diabetes associated with vascular changes.

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Q: Does Androcur-100 interact with common heart or blood pressure medications?

The medication is documented to interact with HMG-CoA Reductase Inhibitors (commonly known as Statins), which are often prescribed for managing cholesterol. This interaction may potentially increase the risk of muscle damage (myopathy/rhabdomyolysis).

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Q: Can Androcur-100 be crushed or split if needed?

Official patient instructions advise swallowing the tablets whole with a glass of water. They explicitly state that the tablets should not be chewed, opened, broken, or crushed.

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Q: Is it necessary to take Androcur-100 with food?

Official instructions consistently state that the tablets must be taken immediately after a meal to support proper use.

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Q: What is the regulatory status of Androcur-100 in the US?

The active ingredient, cyproterone acetate, has been designated as an Orphan Drug by the FDA for certain indications in the US. However, the specific 100 mg formulation is generally not FDA-approved for the same primary indications for which it is used in other countries.

Official Storage and Disposal Profile

Official regulatory information specifies essential requirements for storing and disposing of Androcur-100 tablets.

Storage Requirement	Official Instructions
Temperature / Location	Store below 30 °C or does not require any special storage conditions. Do not store near a sink or on a window-sill.
Packaging / Protection	Keep blister strips in the original carton until use.
Safety	Keep this medicine strictly out of the sight and reach of children.
Stability	The medicinal product has a defined shelf life and must not be used after the expiry date stated on the packaging.
Disposal	Do not throw away any medicines via wastewater or household waste. Consult your pharmacist for instructions on discarding unused medicine to help protect the environment.