Dionelle

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Dionelle

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 Dionelle

Dionelle is a prescription-only medication classified as a Combined Oral Contraceptive (COC), centrally used for systemic contraception (birth control) in adult women. Its identity is defined by the fixed combination of two synthetic sex hormones, delivered in the form of an oral, film-coated tablet. The primary general purpose of this therapy is to provide effective prevention of pregnancy.

Property Description
Active Ingredients Dienogest, Ethinyl Estradiol
Form Oral, Film-Coated Tablet
Pharmacological Class Hormonal Contraceptive (Combined Oral Contraceptive)
Common Use Systemic Contraception (Birth Control)
Origin Synthetic Steroid Hormones

What Type of Contraceptive is Dionelle?

Dionelle is formally categorized within the Hormonal Contraceptive pharmacological class, specifically as a Combined Oral Contraceptive because it includes both an estrogen and a progestogen component. Structurally, it is a monophasic oral contraceptive, meaning the amount of the active hormones remains constant in every active tablet taken across the cycle, a format widely accepted for predictable hormonal stability. This fixed-dose structure is a characteristic feature that differentiates it from multiphasic pills, where hormone levels are systematically varied.

Composition: Dienogest and Ethinyl Estradiol

The active ingredients are the synthetic steroid hormones Dienogest and Ethinyl Estradiol. Ethinyl Estradiol provides the necessary synthetic estrogenic activity, while Dienogest, a derivative of 19-nortestosterone, serves as the synthetic progestogen. The inclusion of Dienogest is a key differentiating factor, as it is characterized by a low androgenic profile and inherent antiandrogenic properties, meaning it actively counteracts the effects of male hormones in the body. This provides a reliable hormonal effect with favorable anti-androgen characteristics.

How Its Purpose is Achieved (General Function)

The combination of Ethinyl Estradiol and Dienogest achieves its purpose—prevention of pregnancy—via a multi-layered biological approach. The medication works by suppressing ovulation and creating barriers in the uterus. The primary mechanism is to prevent egg release while creating physical barriers against sperm. The core function is the suppression of ovulation by inhibiting the hormonal signals from the brain required for egg release. Complementary to this, the hormones concurrently cause the cervical mucus to thicken, acting as a physical barrier to sperm, and gently alter the uterine lining, establishing a robust system of contraceptive reliability.

What side effects are possible with Dionelle?

Safety Warnings and Serious Adverse Reactions

Serious Cardiovascular Events and Blood Clots

The most serious safety risk associated with Dionelle, a combined hormonal contraceptive, is the potential for developing venous and arterial thromboembolic events (blood clots). These events are rare but can be life-threatening and include deep vein thrombosis (DVT), pulmonary embolism (PE), myocardial infarction (heart attack), and stroke.

The risk of developing a blood clot is highest during the first year of use and is significantly increased in individuals who smoke and are over the age of 35, a restriction that is a formal contraindication for use. Regulatory authorities mandate that the medication be discontinued prior to and shortly after major surgery to mitigate this risk.

Other Serious Safety Concerns

Clinically significant adverse reactions documented in regulatory sources also include the development of liver tumors (which may be benign or malignant) and severe hypertension (high blood pressure). Jaundice (yellowing of the skin or eyes) can be a sign of a serious liver issue and requires immediate evaluation.

Common Adverse Reactions

The following side effects have been reported as Common (affecting 1 in 100 to 1 in 10 users):

  • Headache
  • Nausea and abdominal pain
  • Metrorrhagia (irregular bleeding or spotting between periods)
  • Acne
  • Vaginitis and vaginal moniliasis (yeast infection)

Safety Restrictions and Contraindications

Dionelle is formally contraindicated (must not be used) if the individual has a history of or current:

  • Known breast cancer or other estrogen- or progestin-sensitive cancer.
  • Deep vein thrombosis or pulmonary embolism.
  • Stroke, heart attack, or other condition predisposing to blood clots.
  • Severe, uncontrolled high blood pressure.
  • Liver tumors or active liver disease.

Regulatory Safety Summary

The official safety framework for Dionelle is centered on the critical, dose-related risk of thromboembolic disease, which dictates the strict contraindications and precautions for its use, while also cataloging the expected, more frequent minor side effects observed during clinical development.

Overdose and Emergency Response

The official regulatory documents define the overdose profile for Dionelle (Ethinyl Estradiol/Dienogest) with specific, low-severity manifestations. Overdosage of Combined Hormonal Contraceptives is generally associated with minor, non-life-threatening clinical changes. Regulators explicitly state that there have been no reports of serious ill effects following acute ingestion of an excessive amount of the medication.

The documented clinical signs of overdose are primarily limited to the gastrointestinal and reproductive systems. These typically include the presentation of nausea and vomiting. Hormonal effects, such as withdrawal bleeding, may also occur in females. A population-specific consideration noted in the labeling is the potential for slight vaginal bleeding specifically in young girls.

The instruction on when to seek help is clearly tied to a specific exposure scenario. The official prescribing information mandates that a doctor must be consulted if it is discovered that a child has taken one or more tablets. Otherwise, treatment is generally non-specific. If intervention is considered necessary, the regulatory protocol states that management should be symptomatic, confirming that there is no need for a specific antidote. The entire regulatory profile emphasizes symptomatic support rather than aggressive procedural steps or monitoring.

Therapeutic Uses of Dionelle

Dionelle is generally applied across domains where additional symptomatic support is needed, primarily systemic contraception. The medication is commonly used to help with systemic contraception, offering adult women a method for prevention of pregnancy. This supports the patient's reproductive planning through consistent, routine use.

Dionelle is applied across domains where additional symptomatic support is needed, including symptoms related to systemic imbalance (such as those seen in moderate to severe acne vulgaris) and those associated with acute or episodic changes (menstrual cycle distress).

“This therapeutic approach supports managing symptoms related to both systemic hormonal factors and recurrent menstrual distress.”

It may assist with managing androgen-related skin manifestations, including excessive sebum production and mild hirsutism, and is relevant for easing symptoms that create noticeable physiological strain, such as dysmenorrhea. This supports patients during episodes of heightened discomfort.


Quick Fact: Therapeutic Focus: Androgen-Related Symptoms

Dionelle is considered relevant for easing skin symptoms that are driven by internal systemic imbalance, such as moderate to severe acne, relevant in contexts marked by increased discomfort or tension.

Regulatory References

  1. European Medicines Agency

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Dionelle — Official Regulatory Information

This section outlines the officially documented eligibility and non-eligibility requirements for Dionelle (Dienogest/Ethinyl Estradiol), strictly based on government regulatory documents.


Eligibility Scope

Category Official Regulatory Statement
Populations for whom use is allowed Adult women of reproductive age who are seeking systemic contraception (birth control).
Populations for whom use is not recommended Women who are breastfeeding; the medication is to be initiated no earlier than four weeks post-partum in non-breastfeeding women.
Populations for whom use is contraindicated Women with a high risk of arterial or venous thrombotic diseases, including those with a history of blood clots, or uncontrolled high blood pressure.
Age-related eligibility rules Not indicated before menarche (onset of menstruation). Not indicated for use in post-menopausal women.
Condition-specific eligibility rules Contraindicated in current or history of severe liver disease (until liver function is normal) or liver tumors.
Pregnancy and lactation eligibility status Contraindicated during pregnancy. Not recommended during breastfeeding.
Eligibility-related restrictions Contraindicated in women over age 35 who smoke due to significantly increased cardiovascular event risk.

Eligibility Classifications (High-Level)

Category Regulatory Statement / Classification
Eligibility severity classification Contraindicated (absolute prohibition) and Not Recommended (conditional restriction).
Eligibility-context constraints Use is prohibited in those with hormone-sensitive cancers (e.g., breast cancer) and patients with migraine headaches with focal neurological symptoms.

Resulting Eligibility Structure

Official Eligibility Statements:

  • Use is contraindicated in any woman with a history of, or current, deep vein thrombosis, pulmonary embolism, stroke, or heart attack.
  • The medicine must not be used by women over 35 years of age who smoke.
  • The drug is prohibited in known or suspected sex-steroid-influenced malignancies and in those with severe, active liver disease.

Connection to the Overall Eligibility Profile

Regulatory documents define eligibility for Dionelle by establishing stringent criteria that primarily exclude women with existing thrombotic risks and hormone-sensitive conditions. The official profile permits use only in adult women of reproductive age seeking contraception who have been assessed and found to be free of all contraindicated vascular, hepatic, and malignancy-related conditions.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Dionelle (Dienogest/Ethinyl Estradiol) is defined by officially documented patterns that alter the concentration of the hormones in the body. The regulatory labeling formally contraindicates co-administration with Hepatitis C drug combinations containing Ombitasvir/Paritaprevir/Ritonavir, with or without Dasabuvir, due to the risk of severe liver enzyme elevations.

Documented Pharmacokinetic Interactions

Classification Interacting Agents (Examples) Official Outcome (Hormone Concentration)
Enzyme Inducers Carbamazepine, Rifampicin, St. John's wort Reduced plasma levels, potential decrease in contraceptive efficacy.
Enzyme Inhibitors Ketoconazole, Itraconazole, Grapefruit Juice Increased plasma levels, potential increase in adverse effect risk.

These interactions are primarily due to the modulation of CYP450 enzymes in the liver. Furthermore, Dionelle itself is documented to affect the clearance of other drugs, such as Lamotrigine, by inducing its glucuronidation, resulting in a reduction of Lamotrigine's plasma concentration. A timing-based condition requires continued use of back-up contraception for 28 days after stopping a strong enzyme inducer. Use is also contraindicated in patients with severe hepatic disease, a population-specific restriction based on impaired hormone clearance.

Mechanism of Action

Dionelle operates through a dual-action mechanism centered on the active components. One component selectively binds to the estrogen receptor (ER), functioning as a selective receptor modulator. This binding induces specific conformational changes in the receptor, which then alters the transcription of target genes. The ER modulation exerts an agonist effect in certain tissues, such as bone, and helps to establish a consistent hormonal feedback loop. The second component provides a direct progestogenic action by binding to the progesterone receptor. The combined action alters the signaling dynamics within the hypothalamic-pituitary-ovarian (HPO) axis, resulting in suppressed pituitary gonadotropin release. This systemic physiological modulation leads to a cascade that reduces the synthesis and circulation of endogenous androgens. The overall effect is a controlled, altered hormonal environment resulting from specific receptor interactions and downstream endocrine pathway modifications.

Dosage and Administration Information

How to Use Dionelle

The usage of Dionelle, a Combined Oral Contraceptive, follows a standardized, fixed-dose, cyclic oral administration protocol. The medication is designated for the oral route, administered as a single film-coated tablet taken once daily at the same time every day. Each active tablet contains the fixed combination of 2 mg dienogest and 0.03 mg ethinyl estradiol.


The 28-Day Cyclic Regimen

The regimen is structured into repeated 28-day cycles, consisting of taking one active tablet daily for 21 consecutive days, immediately followed by a 7-day hormone-free interval (or a placebo tablet interval). Instructions require that tablets be consumed in the specific order indicated on the blister packaging.

Treatment initiation is ideally scheduled for the first day of the menstrual cycle. If starting between Days 2 and 5, the use of a non-hormonal barrier method for the first seven days of active tablet intake is required to ensure proper contraceptive coverage.


Procedural Administration Rules

Usage is not indicated for women before menarche. Specific procedures apply for handling adherence failures. If an active tablet is missed by more than the specified time, a remedial protocol is followed. A critical procedural rule involves seven consecutive days of uninterrupted active tablet intake to reliably re-establish the contraceptive effect. Furthermore, severe gastrointestinal disturbances, such as vomiting or diarrhea within 3 to 4 hours of intake, are treated as a missed dose due to the risk of incomplete absorption.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Dionelle

Evidence for Systemic Contraception

Research on Dionelle's use for birth control was conducted through regulatory Phase III clinical trials and is supported by ongoing post-marketing surveillance. These studies were applied in research contexts involving healthy adult women seeking to avoid pregnancy. The primary focus of these trials was to examine the results in preventing pregnancy, often quantified using the Pearl Index, which monitors the number of pregnancies per 100 woman-years of use.

Studies explored the suppression of ovulation by monitoring the hormonal signals necessary for egg release. Findings describe patterns observed in the studies related to hormonal changes necessary for egg release, and related to the research finding that the cervical environment was also monitored. While Data show patterns related to expected performance when compliance was monitored, evidence is limited regarding personalized outcomes; findings describe group patterns, not personal predictions.

Evidence for Moderate to Severe Acne Vulgaris

Dionelle was studied for its use in managing certain skin conditions, particularly moderate to severe acne. Research examined this application through controlled clinical trials involving adult women. The studies monitored outcomes linked to inflammatory or irritative states, specifically measuring changes in the number and severity of acne lesions, the overall Global Severity Score, and, in some cases, excessive oil or sebum production. Research highlights changes measured during the study period, with studies reporting how symptoms evolved in the observed populations. The Dienogest component was observed in pharmacological studies related to its specific activity profile.

Known Limitations and Research Gaps

Research highlights what is known — and what is still uncertain. For conditions like acne and dysmenorrhea, follow-up durations were limited primarily to the short-to-intermediate term. This means there is limited information for long-term outcomes regarding the duration of symptom patterns for non-contraceptive benefits. Data for certain groups remain insufficient; for instance, specific evidence for women with certain complex comorbidities or very pronounced androgen-related symptoms beyond acne is not extensively characterized.

Key Studies & References

  1. Dienogest/ethinylestradiol can be used for acne after certain other treatments have failed (EMA Public Health Communication)
  2. Ethinylestradiol/dienogest in oral contraception (Review of efficacy and non-contraceptive benefits)
  3. Summary of Product Characteristics (SmPC) for Dienogest/Ethinylestradiol (Regulatory document containing efficacy and safety data)

Frequently Asked Questions (FAQ)

Common questions about Dionelle (FAQ)

Q: Can I take this medicine with grapefruit juice?

According to the official product information, concurrent use with grapefruit juice is generally not recommended. Grapefruit juice can potentially interfere with how the body handles the medicine, which may increase the amount of the drug in the system. This warning is explicitly stated in the regulatory documentation, typically under drug interactions.

Q: Does this medicine cause drowsiness or make me feel sleepy?

Yes, regulatory documents list drowsiness or somnolence (sleepiness) as a common or very common potential side effect. This effect may reduce alertness and reaction time. Because of this potential side effect, the official product information suggests caution regarding activities that require high focus, such as driving or operating machinery.

Q: Is this medicine safe to take while I am pregnant?

Based on regulatory information, the use of Dionelle is not recommended during pregnancy. Regulatory labeling indicates that use is not recommended unless a healthcare professional specifically determines the potential benefit justifies the risk, based on clinical assessment. The specific potential risk is detailed in the warnings section of the official prescribing information.

Q: What should I do if I forget to take a dose?

Official regulatory instructions state that if a dose is missed, it can be taken as soon as it is remembered. However, if it is already nearly time for the next scheduled dose, the information advises skipping the missed dose. The instructions caution against taking a double dose to compensate for the missed one.

Q: How should I store this medication?

The official labeling, as reviewed by authorities like the FDA, specifies that the medication should be kept in its original packaging at controlled room temperature, typically ranging from 20 C to 25 C (68 F to 77 F). The product information also specifies that the medication must be protected from excess moisture and heat.

How should Dionelle be stored and disposed of?

Storage & Disposal Map: Official Regulatory Information

Scope Element Official Regulatory Information
Temperature Requirements Store below 25 C
Light/Moisture Protection Must be protected from light
Packaging Rules Keep in the original container and the outer carton
Child-Protection Rules Keep out of the sight and reach of children
Stability/Shelf-life Shelf-life is 2 years when stored under the specified conditions
Disposal Instructions Dispose of unused product or waste material in accordance with local requirements

The official storage conditions mandate that Dionelle tablets be stored at temperatures not exceeding 25 C and protected from light. These stability requirements are upheld by the explicit instruction to store the blister pack within its original container and outer carton. To prevent accidental ingestion, the labeling requires the medication be kept out of the reach of children. Final disposal of any unused or expired product must follow the local pharmaceutical waste protocols, as documented in regulatory guidelines.

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

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