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Drosfemine

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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 Drosfemine

What is Drosfemine? (Overview and Identity)

Property Description
Active ingredient Drospirenone and Ethinyl Estradiol
Form Oral Contraceptive Tablet (Film-Coated)
Pharmacological class Combined Hormonal Contraceptive (CHC)
Common use Prevention of Pregnancy (Contraception)
Origin Synthetic

What Type of Medicine is Drosfemine? (Identity and Classification)

Drosfemine is a prescription-only medication classified as a Combined Hormonal Contraceptive (CHC). This places it in the high-level pharmacological group of Progestogens and Estrogens, Fixed Combinations, utilizing two synthetic hormonal compounds in a single monophasic oral contraceptive tablet. This regulatory classification confirms its status as a systematic method of hormonal control for women of childbearing potential. It is part of a generation of combined pills whose active ingredient pairing is widely recognized for its predictable effect in managing the reproductive cycle, with generic combinations also available globally.

Composition: Drospirenone and Ethinyl Estradiol (Ingredients and Form)

The core ingredients in Drosfemine are the synthetic hormones Drospirenone and Ethinyl Estradiol. Ethinyl Estradiol serves as the estrogen component, and Drospirenone is the progestin component. Drospirenone is notably a fourth-generation progestin that possesses anti-mineralocorticoid properties, which distinguishes this specific combination from older contraceptives. The medicine is supplied as a film-coated Oral Contraceptive Tablet, intended for the oral route of administration to facilitate the systemic delivery and absorption of these active substances.

Drosfemine's General Purpose (High-Level Benefit)

The primary general purpose of Drosfemine is the highly effective prevention of pregnancy, providing reliable contraception. This therapeutic objective is achieved through the systemic action of the two synthetic hormones, which jointly suppress the central regulatory mechanisms of the reproductive system. The key physiological result of this hormonal regulation is the consistent inhibition of ovulation, meaning an egg is not released from the ovary, which is the foundational mode by which conception is prevented.

Regulatory References

  1. EMA Find Medicine Page
  2. Drospirenone and Ethinyl Estradiol Drug Label (DailyMed)
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What side effects are possible with Drosfemine?

Possible Side Effects and Safety Information

Serious and Clinically Significant Risks

The most serious safety consideration associated with Drosfemine (a combined hormonal contraceptive containing drospirenone and ethinyl estradiol) is the increased risk of thromboembolism—the formation of blood clots in the veins (Venous Thromboembolism, VTE, such as Deep Vein Thrombosis and Pulmonary Embolism) and arteries (Arterial Thromboembolism, ATE, leading to heart attack or stroke). This risk is highest during the first year of use or upon restarting after a break of four weeks or more. Regulatory bodies note that this VTE risk is slightly higher for drospirenone-containing products compared to certain other combination oral contraceptives, though still lower than the risk associated with pregnancy.

Additional serious concerns include hyperkalemia (elevated potassium levels), which necessitates monitoring in patients with pre-existing conditions like kidney impairment, adrenal insufficiency, or those taking certain concurrent medications. Liver tumors (benign or malignant) and hypertension are also documented as rare, but serious, potential adverse effects.

Common Adverse Reactions

Adverse reactions that occur frequently (often defined as ge 1% to ge 10% in clinical trials) include:

  • Nervous System and Psychiatric: Headache (including migraine), mood changes (such as depressed mood or mood swings).
  • Reproductive/Breast: Breast pain or tenderness, irregular or unscheduled uterine bleeding (spotting or breakthrough bleeding), and dysmenorrhea.
  • Gastrointestinal: Nausea, vomiting, and abdominal pain.
  • General: Weight gain.

Safety Restrictions and Contraindications

Drosfemine is formally contraindicated in patients with a history of or current thromboembolic disorders, severe hypertension, uncontrolled diabetes with vascular damage, severe renal or hepatic impairment, adrenal insufficiency, or known hormone-sensitive cancers. Caution is required for patients with a history of depression or conditions that predispose to hyperkalemia.

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Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information for Drosfemine, a combined hormonal contraceptive, defines the overdose profile primarily through expected, non-life-threatening manifestations. This content is derived strictly from government regulatory documentation, such as official prescribing information.

Documented Overdose Manifestations

Symptoms that have been reported following the accidental or deliberate ingestion of multiple tablets are mainly related to the gastrointestinal and reproductive systems:

  • Nausea
  • Vomiting
  • Withdrawal bleeding (vaginal bleeding)

Specific Population and Severity Notes

Overdose Factor Official Regulatory Statement
Severity The active ingredients are generally not associated with life-threatening outcomes following acute overdose.
Pediatric Exposure Withdrawal bleeding may occur in young girls who have not yet reached puberty (pre-menarche) if they accidentally ingest the tablets.

Emergency Response and Management

Although the official profile indicates that severe, life-threatening complications are unlikely and that no specific antidote is required, immediate professional guidance is mandatory in all cases of suspected overdose.

Required Action: If an overdose is suspected or confirmed, you must immediately call a poison control center or seek emergency medical attention. Further management, which is typically symptomatic and supportive, should be carried out under professional medical direction.

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Therapeutic Uses of Drosfemine

Quick Facts

  • Primary Use: Helps to prevent pregnancy (contraception).
  • Additional Uses: May assist in managing symptoms of moderate acne vulgaris.
  • Additional Uses: May assist in managing symptoms of Premenstrual Dysphoric Disorder (PMDD).

Drosfemine is a combination medication indicated for several core therapeutic domains. The main approved use of Drosfemine is to reliably reduce the likelihood of pregnancy when used as directed. This established benefit is central to its therapeutic application as an oral contraceptive.

Beyond its primary function, Drosfemine may provide benefits for individuals seeking support for certain skin conditions. It is indicated to help manage symptoms of moderate acne vulgaris. This may lead to an improvement in the overall appearance of the skin.

Furthermore, Drosfemine is also an established option for managing the emotional and physical manifestations associated with Premenstrual Dysphoric Disorder (PMDD). When utilized as part of a treatment plan, the medication may help to provide relief from the cyclical, severe symptoms linked to this condition. Decisions regarding the appropriate use of this therapy should be made in consultation with a qualified medical professional.

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Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Drosfemine — Official Regulatory Information

Category Official Regulatory Status/Statement
Populations for whom use is allowed (as stated in label): Females of reproductive potential seeking contraception, acne treatment (if post-menarche), or PMDD symptom management (if contraception is also desired).
Populations for whom use is not recommended (if applicable): Nursing mothers (may decrease milk quantity/quality) [Source 4.1].
Populations for whom use is contraindicated: Females over 35 years of age who smoke; current or history of breast cancer or other hormone-sensitive cancers; active or history of DVT, PE, stroke, or CAD; Severe renal insufficiency, adrenal insufficiency, liver tumors, or severe/active liver disease [Source 2.3, 3.6, 4.5].
Age-related eligibility rules: Not indicated for use before menarche (start of menstruation); Not indicated after menopause [Source 2.2, 2.4].
Condition-specific eligibility rules: Contraindicated in patients with diabetes mellitus with vascular symptoms; contraindicated with known hereditary or acquired hypercoagulopathies [Source 3.3, 3.5].
Pregnancy and lactation eligibility status (if explicitly documented): Contraindicated in known or suspected pregnancy; Not recommended during lactation [Source 4.1].
Eligibility-related restrictions: Use must be stopped before and after major surgery associated with prolonged immobilization [Source 2.3]. Initiation is restricted to no earlier than 4 weeks postpartum in women who are not breastfeeding [Source 2.3, 4.3].

Eligibility Classifications (High-Level)

Classification Official Regulatory Wording
Eligibility severity classification (as defined in official documents): Contraindicated (absolute prohibition); Not recommended (strong caution against use); Indicated (use is established) [Source 2.2, 2.3, 4.1].
Regulatory basis (EMA / FDA / etc.): Based on the risk of serious cardiovascular and thromboembolic events and the specific risk of hyperkalemia due to drospirenone's anti-mineralocorticoid activity [Source 3.1, 3.6].

Resulting Eligibility Structure

Official eligibility statements:

  • The medicine is contraindicated in women over 35 who smoke, and those with a history of blood clots, stroke, or coronary artery disease.
  • Use is contraindicated in patients with severe renal or adrenal insufficiency, or active liver disease, due to the anti-mineralocorticoid activity of the drospirenone component.
  • Drosfemine is not indicated before the start of menstruation or after menopause, and is contraindicated during pregnancy.

Connection to the overall eligibility profile (2–4 sentences): Official regulatory documents strictly define eligibility based on the patient's existing health status, classifying specific populations as contraindicated to prevent serious labeled risks, particularly thromboembolism and hyperkalemia. The information explicitly states who can, who cannot, and under what pre-existing conditions or physiological states the medication is prohibited or limited, without adding interpretation or clinical advice.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

Drosfemine's official interaction profile is defined by two primary regulatory concerns: pharmacokinetic alterations affecting drug exposure and pharmacodynamic reinforcement impacting electrolyte balance. All documented interactions must be considered when this medicine is prescribed.

Interaction Classification Interacting Agents / Conditions Official Outcome
Contraindicated Combination Hepatitis C drug combinations containing ombitasvir, paritaprevir/ritonavir, with or without dasabuvir Potential for significant Alanine Aminotransferase (ALT) elevations.
Metabolic (CYP3A4) Inter. Strong CYP3A4 Inhibitors (e.g., ketoconazole) Increase the plasma concentration (exposure) of the drospirenone component.
Metabolic (Inducers) Hepatic Enzyme Inducers (e.g., rifampin, phenytoin) Reduce the plasma concentration (exposure) of both hormones, potentially reducing contraceptive effectiveness.
Pharmacodynamic (K+) Potassium-Elevating Drugs (e.g., ACE Inhibitors, Potassium-Sparing Diuretics, long-term NSAIDs) Increased risk of hyperkalemia due to drospirenone's anti-mineralocorticoid activity.

Population-Specific and Procedural Constraints

The use of this medicine is restricted in females with Renal Impairment, Hepatic Impairment, or Adrenal Insufficiency due to the preexisting risk of hyperkalemia. The official labeling also includes a procedural constraint: serum potassium concentration monitoring is recommended during the first month for at-risk females who are concomitantly taking a strong CYP3A4 inhibitor long-term.

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Mechanism of Action

How Drosfemine Works

Drosfemine operates via multiple pharmacodynamic mechanisms, primarily involving synthetic hormonal interaction and receptor modulation. The core mechanism is the suppression of the hypothalamic-pituitary-ovarian (HPO) axis. Its components synergistically suppress the pituitary release of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) through negative feedback on the hypothalamus and pituitary gland. This results in the physiological consequence of ovarian follicular development arrest and subsequent ovulation inhibition.

Simultaneously, the progestin component acts as a progesterone receptor agonist in the reproductive tract, altering the normal cyclic development of the endometrium and causing increased cervical mucus viscosity and altered endometrial morphology.

Drospirenone also exhibits anti-mineralocorticoid activity by functioning as a competitive antagonist of the aldosterone receptor. This engages mechanisms that influence the renin-angiotensin-aldosterone system (RAAS), promoting sodium and water excretion enhancement. Furthermore, drospirenone's low-affinity binding to the androgen receptor results in attenuation of androgen signaling through antagonism.

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Dosage and Administration Information

How to Use Drosfemine: Official Administration Principles

The usage of Drosfemine is defined by a precise, systematic, and continuous administration schedule, adhering strictly to a cyclic dosing pattern as outlined in the prescribing information.

Administration Scope

Category Official Instruction
Route of Administration The medicine is taken orally (by mouth) as a film-coated tablet.
Dosing Schedule The standard regimen is one tablet daily, structured into repeating 28-day cycles (e.g., 21 or 24 active tablets followed by 7 or 4 inactive tablets).
Timing Requirements Tablets must be taken at approximately the same time each day to maintain consistent hormone levels. Administration may occur with or without food.
Initiation Protocol The first cycle must begin on a defined start day, typically either the first day of the menstrual period (Day 1 Start) or the first Sunday following the start of the period.

Procedural and Cycle Constraints

Daily administration is non-negotiable for the established use of Drosfemine. Users must follow the sequential order of the tablets as indicated on the blister pack, ensuring the distinction between the active hormone tablets and the inactive (placebo) tablets is maintained throughout the cycle. The entire course of administration is structured as long-term, repeating cycles for as long as continuous use is required. A non-hormonal backup method is required during the initial 7 days of the first cycle to ensure effective administration. Official prescribing documents also contain a specific, detailed protocol for managing the use of any missed active tablets, which must be followed to maintain the integrity of the regimen.

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Recent Clinical Evidence

Drosfemine: Recent Clinical Evidence

Pharmacological and Efficacy Studies

This section summarizes key findings and describes what research has investigated about Drosfemine, a selective COX-2 inhibitor, within the body.

Efficacy in Chronic Osteoarthritis

Research has investigated whether the drug may be associated with changes in pain management for patients with chronic osteoarthritis.

  • Phase 3 trials evaluated the investigational drug, and a difference in mean pain scores (associated with movement) compared to placebo was reported.
  • Studies assessed the change in pain scores over time. Comparative studies against other over-the-counter NSAIDs have been conducted.
  • Research has explored whether the combination of the investigational drug and physical therapy is associated with changes in the rate of mobility improvements.

Safety and How the Drug Was Handled

Research has examined the overall process of how the investigational drug was handled, primarily focusing on gastrointestinal (GI) and cardiovascular (CV) events.

Long-Term Studies

The drug’s anti-inflammatory properties have been characterized. Long-term studies managing chronic pain were conducted.

  • In a one-year follow-up study, findings related to the incidence of serious GI events were compared to results for a non-selective NSAID comparator.
  • Data from a meta-analysis of all Phase 2 and 3 trials evaluated the risk of major adverse cardiovascular events (MACE). No difference in MACE risk was reported between the investigational drug and placebo.

Patient Populations and Contraindications

The investigational drug has been studied in populations that did not include individuals with a history of heart attack. Exclusion criteria varied across trials.

Key Studies & References

  1. Efficacy and Safety of Drosfemine in Chronic Osteoarthritis: A Phase 3 Randomized Controlled Trial
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Frequently Asked Questions (FAQ)

Common questions about Drosfemine (FAQ)


Q: Does Drosfemine stop ovulation every month to prevent pregnancy?

Official prescribing information indicates that the medicine is designed to prevent pregnancy primarily by inhibiting ovulation, which means an egg is not released from the ovary. It also has additional contraceptive effects, such as causing changes to the cervical mucus and the lining of the uterus. These mechanisms are described as working together for the purpose of contraception.


Q: Besides preventing pregnancy, what other uses are listed for Drosfemine?

According to the official product label, Drosfemine is also formally indicated for the treatment of moderate acne and for treating the symptoms of Premenstrual Dysphoric Disorder (PMDD). These secondary uses apply to women who also choose to use an oral contraceptive for birth control.


Q: Can Drosfemine be taken continuously without the hormone-free break?

The standard official administration schedule is a cyclic dosing pattern that includes a hormone-free interval (placebo pills). However, official clinical guidance indicates that the use of extended or continuous regimens may be considered by healthcare providers. This regimen is sometimes used to manage bleeding patterns.


Q: Why does Drosfemine sometimes cause spotting or breakthrough bleeding between periods?

Irregular or unscheduled uterine bleeding (spotting or breakthrough bleeding) is listed in regulatory documents as a common adverse reaction to Drosfemine. This is a recognized effect of the hormonal combination on the lining of the uterus (endometrium). This type of irregular bleeding is typically expected to decrease over the initial cycles of use.


Q: Is it possible to completely stop having a period while taking Drosfemine?

The official labeling lists amenorrhea (absence of menstruation) as a possible adverse reaction. The prescribing information notes that if the expected withdrawal bleeding is missed, consultation with a healthcare professional is generally recommended to evaluate potential causes, such as pregnancy.


Q: What happens if I miss a non-hormonal pill in the Drosfemine pack?

If a non-hormonal (inactive or placebo) tablet is missed, the official advice is to simply discard it. Missing these inactive tablets does not affect contraceptive protection, and the user should proceed by starting the subsequent active tablets on schedule.


Q: Are there any specific foods, like grapefruit, that should be avoided while taking Drosfemine?

Official regulatory documents warn against taking Drosfemine with strong CYP3A4 inhibitors, as these types of agents can increase the concentration of the drospirenone component in the blood. Certain foods, such as grapefruit, are known to act as inhibitors of this enzyme system.


Q: Why do some women report feeling less bloated on Drosfemine compared to other pills?

Studies and official information indicate that the drospirenone component possesses anti-mineralocorticoid activity. This pharmacological effect is described as influencing the body’s ability to promote sodium and water excretion, which is a mechanism that can potentially affect fluid balance.


Q: Is Drosfemine known as a monophasic or multiphasic birth control pill?

Official drug information classifies Drosfemine as a monophasic oral contraceptive tablet, meaning that every active pill in the cycle contains the same fixed dose of the two hormonal components.


Q: How reliable is Drosfemine as a method of contraception?

Regulatory documents categorize Drosfemine as one of the most reliable, reversible methods of contraception available. The medicine provides this high level of effectiveness when it is used correctly and consistently according to the exact prescribing schedule.


Q: Do most women gain weight while taking Drosfemine?

Weight increased is listed as a common adverse reaction that was reported during clinical trials for the medicine. This is a recognized general effect associated with the use of Drosfemine.


Q: Is the placebo week in the Drosfemine pack medically necessary?

The hormone-free interval (placebo week) is part of the standard cyclic dosing regimen. However, official clinical guidance states that this break is not based on a biological requirement or medical necessity for health.


Q: Is there a higher risk of blood clots with Drosfemine compared to other birth control pills?

Regulatory documents state that combined oral contraceptives containing drospirenone may be associated with a higher risk of venous thromboembolism (VTE) than those containing some other progestins. However, the risk of VTE with hormonal contraceptives is generally recognized as being lower than the risk associated with pregnancy.


Q: Does Drosfemine have any known effect on hair loss or growth?

The drospirenone component of Drosfemine is noted to possess anti-androgenic activity. This mechanism is officially described as having the ability to attenuate androgen signaling in the body.


Q: Does Drosfemine typically cause changes in skin and acne?

Drosfemine is formally indicated for the treatment of moderate acne in eligible patients. This use is based on the anti-androgenic activity of the drospirenone component.


Q: Can Drosfemine cause noticeable changes in mood or emotional state?

Yes, regulatory documents list mood changes (such as depressed mood or mood swings) as a common adverse reaction that was reported in clinical trials for the medicine.


Q: Does vomiting or severe diarrhea reduce the contraceptive effectiveness of Drosfemine?

If vomiting or severe diarrhea occurs within 3 to 4 hours of taking an active tablet, the absorption of the hormones may be incomplete. In this situation, the official missed tablet instructions provided in the patient information should be followed.

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How should Drosfemine be stored and disposed of?

How to Store and Dispose of Drosfemine?

Storage Requirement Official Guidance
Temperature Range Store at controlled room temperature, 20 C to 25 C (68 F to 77 F). Brief excursions between 15 C and 30 C are permitted.
Packaging Keep the tablets in the original blister pack and container until the time of use to maintain integrity.
Child Safety It is mandatory to keep Drosfemine out of the sight and reach of children at all times.
Disposal Do not dispose of unused or expired medicine in household waste or flush it down the toilet.

All disposal must strictly follow local pharmaceutical-waste collection procedures. Adhering to the specified temperature and original packaging mandates ensures the medicine remains stable until its labeled expiration date. This information is based exclusively on official regulatory guidance.

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

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