Gynelle

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Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Gynelle

Property Description
Active ingredient Cyproterone acetate, Ethinyl Estradiol
Form Oral tablet
Pharmacological class Combined Antiandrogen-Estrogen Preparation
Common use Contraception and Hormonal Support
Origin Synthetic steroid combination

The medication Gynelle is a synthetic steroid combination classified as a Combined Oral Contraceptive (COC) and a specialized antiandrogen-estrogen preparation. It is an oral tablet dispensed strictly as a prescription-only medicine. This status reflects its potent systemic action and specialized formula, which provides reliable hormonal contraception while simultaneously managing hormonal effects influenced by androgens.

What Type of Medicine is Gynelle and What is its Classification?

Gynelle belongs to the pharmacological class of Hormonal Contraceptives with strong antiandrogenic activity. Unlike standard, low-dose oral contraceptives, Gynelle is recognized in medical contexts for its unique formula: it uses Cyproterone acetate as the progestin, a differentiating factor that provides direct antiandrogenic properties not characteristic of all combined pills.

Gynelle's Core Composition and Active Components

The composition of Gynelle is a fixed-dose combination product containing the active ingredients Cyproterone acetate and Ethinyl Estradiol. Ethinyl Estradiol serves as the synthetic estrogen component. Cyproterone acetate is a progestin that carries the significant antiandrogenic properties that define the medication's therapeutic scope. This component competes for receptor binding, which serves as the mechanism that reduces the biological impact of circulating androgens.

What is the General Purpose of Taking Gynelle?

The general purpose of taking Gynelle is dual: primarily, it is used for the prevention of pregnancy by inhibiting the hormonal sequence required for egg release. Secondly, the powerful antiandrogenic component ensures the medication is designed to also address and provide therapeutic support for conditions linked to androgen-dependent concerns in women. The combined effect addresses both fertility management and the underlying issue of increased androgen influence, establishing its comprehensive utility.

What side effects are possible with Gynelle?

Possible side effects and safety information

The official safety profile for this combined antiandrogen-estrogen preparation details possible adverse reactions categorized by frequency and the body system affected, strictly based on regulatory documents.


Adverse Reaction Scope

Adverse reactions are formally categorized based on standard regulatory classifications:

  • Common Reactions: Headache, nausea, abdominal pain, weight gain, breast pain, breast tenderness, and mood changes, including depressive mood. Breakthrough bleeding or spotting is frequently reported, especially during the initial treatment cycles.
  • Uncommon/Rare Reactions: Less frequent reactions include vomiting, migraine, fluid retention, skin rash, and changes in libido. Rarely, Hypersensitivity reactions have been documented.

Reactions are grouped by System-Organ Classes, including Vascular, Nervous System, Gastrointestinal, Psychiatric, and Reproductive system disorders.


Serious Adverse Reactions and Safety Constraints

The most serious risks officially documented relate to the vascular system and specific malignancies:

  • Thromboembolic Events: The preparation is associated with an increased risk of Venous Thromboembolism (VTE) (including deep vein thrombosis and pulmonary embolism) and Arterial Thromboembolism (ATE) (including stroke and myocardial infarction). This risk is highest during the first year of use.
  • Malignancy: Official labeling notes the potential for Hepatic Neoplasms (liver tumours, benign and malignant) and an association with Breast and Cervical Cancer.

Safety Restrictions (Contraindications): The use of this medicine is restricted in cases of a current or history of thrombosis, severe uncontrolled hypertension, severe hepatic impairment, known or suspected hormone-sensitive cancers, and in women who are pregnant or are heavy smokers over the age of 35. These documented constraints are crucial to defining the product's safety limits.

Overdose and Emergency Response

Overdose and When to Seek Help

The regulatory labeling for Gynelle, a combined antiandrogen-estrogen preparation, formally describes the expected clinical manifestations following an acute, excessive ingestion of the tablets. These documented signs of overdose are typically non-severe. Officially listed presentations may include gastrointestinal symptoms such as nausea and vomiting. Another recognized manifestation tied to the hormonal components is withdrawal bleeding, which presents as vaginal bleeding. It is specifically noted in the regulatory documents that this bleeding may occur in young girls if the medication is accidentally taken before the onset of menarche.

The official documentation does not detail a specific profile of severe or life-threatening complications resulting directly from a single event of acute overdose in adults.

In the event of suspected over-ingestion, the prescribing information dictates a clear emergency response. It is formally stated that no specific antidote is known to effectively reverse the effects of Gynelle. The mandated medical intervention is that further treatment should be symptomatic and supportive in nature. Urgent medical help must be sought to obtain this regulator-defined symptomatic management. Consulting a physician is required to receive the appropriate supportive measures as defined in the product labeling, thus constituting the required action for overdose.

Therapeutic Uses of Gynelle

Therapeutic Applications of Gynelle

Gynelle is a combined hormonal preparation that is used across two primary symptomatic domains in women of reproductive age: androgen-driven physical manifestations and fertility management.

The medication is commonly used for the management of manifest signs of androgenization. These conditions include moderate to severe acne, excessive skin oiliness (seborrhea), and hirsutism (unwanted terminal hair growth). It is applied in clinical settings when additional management of discomfort is required for persistent symptoms.


Symptom Relief and Dual-Purpose Use

The preparation helps address symptom clusters that create noticeable physiological strain. The medication is used for managing persistent and visible physical manifestations such as severe acne and hirsutism, which are conditions characterized by periods of heightened symptoms. The treatment supports the patient during difficult episodes by easing distress and contributes to easing the overall symptom load during symptomatic periods.

This product is also a hormonal contraceptive and is commonly used to help with pregnancy prevention for women dealing with androgen-driven symptoms. It is considered relevant in contexts involving systemic imbalance, such as in the symptomatic management of Polycystic Ovary Syndrome (PCOS). This dual role provides supportive relief when symptoms interfere with routine activities.

“This preparation is generally applied when a woman requires both effective contraception and supportive relief for chronic skin and hair symptoms linked to androgens.”

Quick Fact: Relief for Androgen-Driven Skin and Hair Symptoms Gynelle is relevant for easing conditions marked by increased discomfort related to chronic skin and hair issues. It is commonly used when symptoms become more disruptive during flare-ups.

Eligibility and Restrictions for Use

Who Can and Cannot Use Gynelle?

The population eligible to use Gynelle (Cyproterone acetate/Ethinyl Estradiol) is highly specific and subject to strict regulatory constraints due to safety concerns, particularly the risk of thromboembolic events.

Official Eligibility and Restrictions

Category Eligibility Status (Regulatory Basis)
Approved Use Limited to women of reproductive age with severe androgen-dependent symptoms (e.g., moderate to severe acne or hirsutism) who have not responded to other specific treatments.
Contraception Must not be used solely for contraception (due to elevated thromboembolic risks).
Pediatric/Geriatric Not recommended for children/pre-menarcheal girls; not indicated after menopause.

Absolute Contraindications (Do Not Use)

The medicine is contraindicated and must not be used by patients with the following conditions, based on official regulatory labeling:

  • A current or historical diagnosis of venous or arterial thromboembolic disorders (e.g., deep vein thrombosis, pulmonary embolism, stroke, or heart attack).
  • Known or suspected pregnancy or while breastfeeding (lactation).
  • Severe hepatic disease, liver tumours (benign or malignant), or a history of meningioma.
  • Any current or history of sex-steroid influenced malignancies (e.g., breast cancer).
  • Severe or multiple risk factors for thrombosis, such as uncontrolled hypertension or diabetes with vascular complications.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Co-administration of Gynelle with certain medicinal products can affect its plasma concentrations, potentially leading to a reduction in its effectiveness or an increase in the exposure of other drugs. Regulatory documents categorize these interactions primarily by the mechanistic effect on drug metabolism.

Pharmacokinetic Interactions Affecting Gynelle

  • Enzyme Inducers: Products that induce hepatic microsomal enzymes (e.g., CYP3A4), such as the herbal product St John's wort (Hypericum perforatum) and certain anti-epileptic agents (phenytoin, phenobarbital, primidone, carbamazepine), increase the clearance of the hormonal components. This interaction may result in reduced efficacy and breakthrough bleeding, and concomitant use with strong inducers is officially not recommended.
  • Antibiotics: Certain antibiotics may interfere with the enterohepatic circulation of the estrogen component, potentially reducing its plasma concentration.
  • HIV/HCV Protease Inhibitors and Non-nucleoside Reverse Transcriptase Inhibitors: Co-administration with these agents can lead to either increased or decreased plasma concentrations of the estrogen and/or progestogen components.

Pharmacokinetic Interactions Affecting Other Medicines

  • Inhibition of Metabolism: The estrogen component in Gynelle may inhibit the glucuronidation of other drugs, increasing their systemic exposure. Specifically, the plasma concentration of lamotrigine is documented to be decreased when Gynelle is started and may increase during the pill-free interval, requiring therapeutic monitoring of lamotrigine levels.
  • CYP3A4 Inhibitors: Strong or moderate inhibitors of the CYP3A4 enzyme (e.g., fluconazole, nefazodone) are expected to increase the plasma concentrations of Gynelle's active components.

Official regulatory guidance stipulates that users must be advised to employ an additional, non-hormonal barrier method of contraception during and for a specified time after the use of enzyme-inducing medicinal products to mitigate the risk of therapeutic failure.

Mechanism of Action

Gynelle operates by engaging specific molecular targets within biological systems that govern overactive or dysregulated processes, resulting in the adjustment of pathway activity. The drug's mechanism is defined by its actions across distinct signaling domains.

Modulates Receptor- or Enzyme-Mediated Signaling

Gynelle primarily acts within domains involving receptor- or enzyme-mediated signaling to modify early molecular steps. This action initiates or suppresses signaling sequences that lead to specific downstream effects, thus altering pathway activity that may escalate under certain conditions.

Regulates Overactive Physiological Pathways

The drug is relevant in systems where targeted pathway adjustment is required, affecting processes driven by distinct signaling patterns. Modification of these mechanistic cascades results in reduced activity of overactive physiological pathways and decreased production of specific mediators.

Influences Systemic Regulatory Responses

Gynelle engages mechanisms that influence feedback regulation within pathways. This action influences feedback regulation within pathways, resulting in altered physiological set points within the targeted biological systems.

Dosage and Administration Information

How Gynelle is Used

Gynelle is a fixed-dose oral tablet administered once daily. The preparation is a combination of cyproterone acetate 2.000 mg and ethinyl estradiol 0.035 mg per active tablet, and its administration is strictly via the oral route.

Dosing and Cyclic Schedule

The standard protocol involves a cyclic daily schedule involving the intake of one tablet daily for 21 consecutive days. This active phase is followed by a 7-day tablet-free interval.

Tablet-taking conventionally begins on the first day of the woman’s natural cycle (the first day of menstrual flow). The medication must be taken at approximately the same time each day and should follow the sequential order indicated on the blister pack.

Usage Principle Procedural Condition
Missed Tablet Protection may be reduced if delayed by more than 12 hours; barrier methods are required for the next 7 days.
Maximum Interval The tablet-free period must never exceed 7 days.
Gastrointestinal Upset Vomiting or severe diarrhea within 3 to 4 hours of intake requires application of the missed tablet procedure.

Duration of Treatment

Gynelle is generally withdrawn 3 to 4 cycles after the androgen-dependent signs have completely resolved. The medication is not intended for prolonged continuation solely for the purpose of contraception.

Recent Clinical Evidence

Research evidence / Overview of studies for Gynelle


The Research Evidence for Moderate to Severe Acne

The evidence for Gynelle's use in women with moderate to severe acne comes primarily from Randomized Controlled Trials (RCTs) and various comparative studies. These study designs were used in research exploring how symptoms change over time in women who had not experienced sufficient change with earlier treatments. Researchers designed these studies to monitor outcomes related to physical discomfort, specifically by measuring objective endpoints such as standardized acne severity scores and lesion counts. Studies also examined whether the treatment was associated with changes in seborrhea (excessive skin oiliness).

The findings describe patterns observed in the studies over observation periods typically lasting several months. Research highlights measured changes in acne severity scores and lesion counts in the observed populations. Furthermore, studies monitored changes in hormonal parameters, reporting patterns such as measured increases in Sex Hormone-Binding Globulin (SHBG) and parallel changes in certain circulating hormonal parameters were measured.

The Clinical Studies for Hirsutism (Excessive Hair Growth)

Research exploring Gynelle for hirsutism (excessive unwanted hair growth) includes RCTs, systematic reviews, and meta-analyses. The key outcomes that research examined were objective assessments using validated scoring systems, such as the Modified Ferriman-Gallwey Score, which measures hair growth across multiple body sites. Studies often required observation periods extending from six months up to one year to capture measurable symptomatic evolution. The findings described a pattern of measured change in hirsutism scores within the study populations over these long intervals. The evidence contributes to understanding symptom patterns; studies described measured reductions in circulating androgen levels in the observed populations.


Research Gaps and Uncertainties in the Evidence

While research contributes to the broader evidence landscape, several research limitation frames remain important for contextual understanding. Long-term effects are not fully established regarding the durability of changes observed beyond the typical trial duration. Data for certain groups remain insufficient, and comparative evidence is lacking for direct evaluation against every alternative systemic therapy. Additionally, regulatory statements emphasize that the research did not focus on use solely for pregnancy prevention, meaning the studies provide limited insight into whether an individual would respond similarly in that context.

Key Studies & References

  1. NICE Guideline NG198: Acne vulgaris: management

Frequently Asked Questions (FAQ)

Common questions about Gynelle (FAQ)


Q: How is Gynelle similar to other combination pills on the market?

A: According to official information, Gynelle is classified as a Combined Oral Contraceptive (COC) because it contains both an estrogen and a progestin. Like other COCs, its primary function is hormonal contraception. The key difference lies in its specific progestin, cyproterone acetate, which also provides anti-androgenic properties.


Q: Are there any non-contraceptive benefits associated with Gynelle?

A: Yes, Gynelle is officially indicated for the treatment of specific medical conditions linked to excess androgens, such as moderate to severe acne and hirsutism (excessive hair growth). The treatment of these androgen-dependent signs is a documented purpose, established in the context of women who are seeking hormonal contraception.


Q: Is weight change a common expectation when taking Gynelle?

A: Official product information lists weight gain as a commonly reported side effect. Weight changes are categorized as a common reaction, meaning they have been frequently observed in studies, but individual experiences may vary.


Q: Can Gynelle interact with common over-the-counter pain relievers like ibuprofen?

A: Official regulatory warnings regarding interactions focus on drugs that strongly affect the hormonal components, such as enzyme-inducing medicines and certain antibiotics. Common over-the-counter pain relievers such as ibuprofen or acetaminophen are typically not listed as agents that reduce the effectiveness of the hormonal components.


Q: Are there any known drug-food or drug-drink interactions for Gynelle?

A: Regulatory documents prioritize warnings about interactions with other medicines and the herbal product St. John's wort. There is generally no consistent, explicit warning in the official labeling against consuming common foods or drinks while taking Gynelle.


Q: Does grapefruit or grapefruit juice interact with the components of Gynelle?

A: While grapefruit juice can affect the body's breakdown of many medications, the official regulatory labeling for Gynelle does not routinely include an explicit warning or restriction regarding grapefruit consumption.


Q: Is it necessary to use a backup method of contraception when starting Gynelle?

A: Official guidance indicates that if tablet intake is started later than the first day of the menstrual cycle, a non-hormonal barrier method is required. The requirement is that barrier methods are necessary for the first 7 consecutive days of active tablet taking if the medication is started later than the first day of the menstrual cycle, as a measure to maintain contraceptive protection.


Q: How long does it take for Gynelle to be described as fully effective for its primary purpose?

A: For its contraceptive purpose, the medicine is described as fully effective after 7 consecutive days of active tablet taking. If the first tablet is taken on the first day of the natural menstrual cycle, official documents describe contraceptive protection as being established from the first day.


Q: Can patients with a high body mass index (BMI) use Gynelle?

A: Official safety documents list severe obesity as a risk factor for Venous Thromboembolism (VTE). Since Gynelle is associated with an increased VTE risk, a high Body Mass Index (BMI) is considered a factor that requires careful medical assessment before use.


Q: Does Gynelle help with acne or oily skin?

A: Gynelle is officially indicated for the treatment of moderate to severe acne. Its anti-androgenic effects are also associated with changes in seborrhea (excessive skin oiliness), as demonstrated in related clinical research.


Q: Is Gynelle used to manage symptoms of Polycystic Ovarian Syndrome (PCOS)?

A: The medication is indicated for treating specific androgen-dependent symptoms, such as acne and hirsutism. These symptoms are frequently associated with Polycystic Ovarian Syndrome (PCOS), but Gynelle is not officially indicated for the underlying condition of PCOS itself.


Q: What do clinical studies say about the effectiveness of Gynelle?

A: Studies describe high contraceptive efficacy when the medicine is used as directed. For treating acne and hirsutism, research shows measured changes and improvements in specific severity scores within the study populations over the observation periods.


Q: Is Gynelle available in different doses or formulations?

A: Official regulatory documents describe Gynelle as a fixed-dose oral tablet preparation where every active tablet contains the same dose of the ingredients. This means that only one specific combination and amount of active ingredients is typically described in the product information.


Q: Can Gynelle affect the results of certain lab tests?

A: Yes, official product information states that combined hormonal contraceptives may affect the results of certain lab tests. This includes tests that measure factors related to coagulation (blood clotting), thyroid function, and liver function.


Q: Is Gynelle considered a high-dose or low-dose oral contraceptive?

A: Gynelle contains 0.035 mg of ethinyl estradiol, which is the synthetic estrogen component. This dosage is generally described in medical contexts as a mid-dose or standard-dose oral contraceptive preparation.


Q: What is the general difference between Gynelle and a progestin-only pill?

A: Gynelle is a combination pill containing both a synthetic estrogen and a progestin. In contrast, a progestin-only pill contains only the progestin hormone. This difference dictates their differing mechanisms of action and eligibility criteria described in the official documents.


Q: What are the more serious, but less common, safety risks described in the documents for Gynelle?

A: The most serious, though uncommon, risks documented are related to the vascular system, including Venous Thromboembolism (VTE) and Arterial Thromboembolism (ATE). Official labeling also notes the potential for Hepatic Neoplasms (liver tumours) and an association with Breast and Cervical Cancer.


Q: Are there specific symptoms that warrant immediate attention while using Gynelle?

A: Official safety information advises patients to be alert for warning signs of blood clots, which could include severe pain or swelling in one leg, sudden unexplained breathlessness, or sudden, severe chest pain. Official guidance advises seeking immediate medical attention if such symptoms are experienced.


Q: What information is available regarding Gynelle use after childbirth or during breastfeeding?

A: Official labeling states the medicine is contraindicated (not to be used) while breastfeeding (lactation). Following childbirth, official guidelines for combined hormonal contraceptives advise avoiding use for a specified period, typically 3 to 6 weeks, due to the temporary increase in thromboembolism risk in the postpartum period.


Q: What should be done if stomach upset or nausea occurs after taking Gynelle?

A: Milder nausea or stomach upset is listed as a common reaction and typically does not affect the pill's effectiveness. Official instructions specify that only severe gastrointestinal upset, defined as vomiting or severe diarrhea within 3 to 4 hours of intake, requires the user to follow the missed tablet procedure.


Q: Does Gynelle protect against sexually transmitted infections (STIs)?

A: No, like all oral contraceptives, Gynelle is designed to protect against pregnancy. It does not provide protection against Human Immunodeficiency Virus (HIV/AIDS) or any other Sexually Transmitted Infections (STIs).


Q: Can Gynelle be used as a form of emergency contraception?

A: No. Gynelle is intended for regular, daily contraceptive use and is not indicated or approved for use as a form of emergency contraception.


Q: Does Gynelle interact with thyroid medications?

A: Combined hormonal contraceptives can alter the level of proteins in the blood that bind to thyroid hormones. This change may affect the measurement of thyroid hormone levels, and the official label notes that this may require therapeutic monitoring and potential adjustment of the thyroid medication dose.


Q: How is the anti-androgenic effect of Gynelle described in official information?

A: The anti-androgenic effect is due to the cyproterone acetate component, which works by acting as an antagonist (blocker). This means it competes for the androgen receptors in target tissues, effectively reducing the biological impact of circulating androgens.


Q: What is the difference between typical use and perfect use effectiveness rates for medicines like Gynelle?

A: Official sources report effectiveness based on two scenarios. Perfect use refers to flawless use exactly as directed in studies, resulting in the highest measured efficacy. Typical use reflects real-world use, including instances of missed or delayed pills, and therefore results in a lower effectiveness rate.


Q: Is there any evidence linking Gynelle to changes in hair health or hair loss?

A: Gynelle is officially indicated for the treatment of hirsutism (excessive hair growth) due to its anti-androgenic effects. Official safety documents do not commonly list significant hair loss as a frequent or common side effect.


Q: What are the general guidelines for using Gynelle if a patient is traveling across time zones?

A: The key procedural guideline is that the tablet must be taken at approximately the same time each day. Official warnings state that protection may be reduced if intake is delayed by more than 12 hours. When traveling across time zones, it is necessary to adjust the pill-taking schedule to maintain the correct interval between doses, based on the procedural conditions described in the official instructions.


Q: What official information is provided about discontinuing Gynelle use?

A: Official guidelines state that Gynelle should be withdrawn 3 to 4 cycles after the androgen-dependent signs have completely resolved. The medicine must also be stopped if the patient becomes pregnant or develops any of the stated contraindications.


Q: What are the research conclusions regarding Gynelle and the risk of certain cancers?

A: Official safety constraints note an association with Breast and Cervical Cancer, and the potential for rare Hepatic Neoplasms (liver tumours). Separately, long-term studies of oral contraceptives in general suggest a protective effect against some other cancers, such as ovarian and endometrial cancer.


Q: Is Gynelle a monophasic or triphasic type of oral contraceptive?

A: Gynelle is a fixed-dose oral tablet preparation where every active tablet contains the exact same dose of both active ingredients. This type of regimen is classified as a monophasic oral contraceptive.


Q: What is the risk of accidental pregnancy described in the literature when Gynelle is used as directed?

A: The risk of accidental pregnancy with perfect use (flawless adherence) is described as less than 1 pregnancy per 100 women in one year. The rate for typical use, which is higher due to common human error, is generally provided by health organizations for all combined oral contraceptives.


How should Gynelle be stored and disposed of?

How to Store and Dispose of Gynelle

The storage of Gynelle (Cyproterone acetate/Ethinyl Estradiol tablets) must adhere strictly to labeled conditions to maintain its quality and efficacy. The regulatory requirement specifies that the medicinal product must be stored at a temperature below 30°C.

Required Storage and Protection

To protect the integrity of the tablets, Gynelle must be stored in a dry place and should be kept in its original container (the blister pack). The product must be stored out of the sight and reach of children and pets to prevent accidental ingestion, which is a mandatory safety instruction.

Disposal Instructions

There are no special requirements for the disposal of Gynelle waste material. Unused or expired medication must be discarded in accordance with local regulations for pharmaceutical waste.

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

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