Florence

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Florence

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.

Overview of Florence

This foundational section provides a definition and classification for the combined oral contraceptive Florence, strictly focusing on its identity, composition, and general purpose, supported by established medical understanding.

Property Description
Active ingredient Dienogest and Ethinyl Estradiol
Form Oral tablet (film-coated)
Pharmacological class Hormonal Contraceptive (Estrogen/Progestin combination)
Common use Contraception (Prevention of pregnancy)
Origin Synthetic

Florence is an oral tablet categorized as a Combined Oral Contraceptive (COC), which is a specialized Estrogen/Progestin combination used for hormonal regulation to prevent pregnancy. It is a prescription-only medication that delivers a fixed dose of two distinct synthetic hormones via the oral route of administration.


What Type of Medicine is Florence?

Florence belongs to the Combined Oral Contraceptive (COC) class, meaning it contains both a synthetic estrogen and a synthetic progestin. The inclusion of both hormone types is essential for maximizing its effectiveness in cyclical hormonal regulation. Combined hormonal contraceptives are a highly effective method for preventing pregnancy when used correctly. This means that this type of medicine offers a reliable way to manage fertility.


What is Florence Composed of and What Makes It Unique?

The active ingredients in Florence are Dienogest and Ethinyl Estradiol, both of which are synthetic steroid compounds. This medication is a combination product where the estrogen component supports cycle stability, and the progestin component, Dienogest, is noted for its high progestogenic activity. The specific pairing of this third-generation progestin (Dienogest) with Ethinyl Estradiol is associated with antiandrogenic properties. While it shares the active ingredients with other brands, Florence is specifically positioned and approved as a daily oral tablet for contraception, making it a key offering within the estrogen/progestin category.


What is the General Purpose of Taking Florence?

The core purpose of Florence is contraception, effectively managing a woman's reproductive capability through hormonal regulation. The combination of Dienogest and Ethinyl Estradiol achieves its goal by creating a multi-layered barrier to pregnancy, principally through the suppression of ovulation. A typical, neutral use scenario involves a woman of reproductive age taking the pill daily to achieve reliable prevention of pregnancy. The overall benefit is providing highly effective, reliable contraception via controlled, daily hormonal intake.

What side effects are possible with Florence?

Possible Side Effects and Safety Information

The safety profile for Florence is established through clinical trial data and post-marketing surveillance, as documented by official government regulatory authorities like the FDA and EMA. All adverse reactions are classified and organized to provide a clear regulatory summary of potential risks.

Adverse Reaction Classification

Side effects are categorized by the body system affected (System-Organ Class) and by the frequency of their occurrence in clinical trials. These official frequency categories help quantify the likelihood of experiencing specific reactions, such as Very Common, Common, Uncommon, or Rare events.

Classification Type Regulatory Description
Serious Adverse Reactions Untoward medical occurrences that result in death, are life-threatening, require hospitalization, or lead to persistent or significant disability. These events are subject to expedited reporting to regulatory agencies.
Frequency-Based Side effects are grouped based on the statistical likelihood of their occurrence, reflecting the observed rates from clinical study populations.
System-Organ Class Reactions are organized by the primary body system or organ involved (e.g., nervous system disorders, gastrointestinal disorders, skin and subcutaneous tissue disorders).

Key Safety Considerations

The official labeling includes safety-related restrictions that define the medicine's safe use boundaries. Population-Specific Safety Considerations address risks or limitations for use in particular patient groups, such as those with pre-existing hepatic or renal impairment, or specific age ranges where data may indicate a different risk profile.

Regulatory documentation also captures adverse reactions reported in contexts outside of approved use, including those related to medication errors or occupational exposure. The entire safety structure is designed to formally communicate the range of documented risks, without providing clinical advice or making comparisons to other treatment options.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose Scope

Documented overdose presentations: The officially documented clinical manifestations of overdose for this combined oral contraceptive primarily involve the gastrointestinal and reproductive systems. Expected presentations include nausea, vomiting, and withdrawal bleeding in females. Other non-specific presentations noted in authoritative health guidance may include headache, breast tenderness, and discolored urine.

Physiological systems affected (as stated in label): Gastrointestinal system and reproductive system.

Dose-related or exposure-related factors (if applicable): Over-exposure may result from the ingestion of multiple tablets. For the population of children, regulatory documentation notes that no reports of serious ill effects have been specifically documented following ingestion.

Population-specific overdose notes (if applicable): Ingestion by children is noted as having no reports of serious ill effects documented.

Emergency-response statements (as written in official documents): Management is strictly confined to symptomatic and supportive treatment. No specific antidote for the active ingredients is known.

When immediate medical help is required (label-derived phrasing only): Individuals must seek immediate medical attention following any suspected or known overdose event. Contact with Poison Control Center and emergency services is mandated for expert guidance.


Overdose Classifications (High-Level)

Severity classification (as defined in official documents): The acute overdose profile is classified as not likely to be life-threatening. Official labeling states that no reports of serious ill effects have been documented.

Regulatory basis (EMA / FDA / etc.): This assessment is consistent with regulatory standards from the FDA and European health authorities for the combined hormonal contraceptive class.

Overdose-context constraints (as defined in official documents): No specific antidote is known.


Resulting Overdose Structure

Official overdose statements:

  • The documented manifestations of Florence overdose are typically limited to nausea and withdrawal bleeding.
  • The regulatory profile explicitly states that no reports of serious ill effects have been documented, leading to the classification that the overdose is not likely to be life-threatening.
  • Individuals must seek immediate medical attention for a suspected overdose, as per official guidance.

Connection to the overall overdose profile (2–4 sentences): Official regulatory documents define the overdose profile by its low-risk nature, supported by the explicit absence of reported serious ill effects, including in cases of ingestion by children. This classification dictates the mandated emergency action to seek immediate medical attention for symptomatic management, which is strictly limited to supportive treatment due to the lack of a known specific antidote.

Therapeutic Uses of Florence

What Florence treats: main uses and benefits

Florence (Dienogest/Ethinyl Estradiol), as a type of combined hormonal contraceptive, is used to provide therapeutic support across several distinct domains, focusing on fertility management and symptomatic relief. This class of medication is relevant for more than just preventing pregnancy, which remains its primary function.

The primary therapeutic use is to provide a reliable method for pregnancy prevention. This addresses the foundational need for fertility control, supporting patient autonomy in reproductive planning. The medication is commonly applied in clinical settings to help ease the burden of specific symptoms related to menstrual cycle distress. This generally helps with managing symptoms related to period pain (dysmenorrhea) and is relevant for easing the symptoms related to heavy bleeding (menorrhagia). Another therapeutic benefit is its utility in addressing moderate to severe acne manifestations that are linked to underlying hormonal factors. This supportive use contributes to easing the overall symptom load related to these pronounced skin symptoms.

Quick Fact: Support for Gynecological Symptoms Florence may assist with maintaining a sense of stability by providing the benefit of cycle predictability, supporting general well-being during symptomatic phases, and is generally considered relevant when conditions present with systemic discomfort related to the menstrual cycle.

Eligibility and Restrictions for Use

Florence (Dienogest/Ethinyl Estradiol) is indicated for use by females of reproductive potential, including postpubertal adolescents. Regulatory guidelines strictly define populations who must not use the medicine (absolute contraindications) and who require restricted use. Use is not indicated before the onset of menstruation (menarche) or in women aged 65 years and older.

The medicine is strictly contraindicated in several populations:

  • Thrombotic Risk: A high risk of arterial or venous thrombotic diseases, including a history of Deep Vein Thrombosis (DVT), Pulmonary Embolism (PE), or inherited clotting disorders.
  • Hormone-Sensitive Conditions: A current or history of breast cancer, liver tumors, or active liver disease with unreturned liver function values.
  • Vascular/Metabolic: Uncontrolled hypertension, diabetes mellitus with vascular disease, or migraine headaches with focal neurological symptoms.
  • Lifestyle/Age: Being over the age of 35 and currently smoking.

Use is also contraindicated during pregnancy, and the medicine is not recommended during lactation/breastfeeding. For non-breastfeeding women, a waiting period of at least four weeks postpartum is required. Furthermore, efficacy and safety have not been evaluated in women with a Body Mass Index (BMI) greater than 30 kg/m^2.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Florence (Dienogest/Ethinyl Estradiol) is defined primarily by pharmacokinetic interactions that affect the clearance of its active hormones. These interactions are categorized by their effect on the CYP3A4 enzyme system.


Interaction Mechanisms and Restrictions

Classification Interacting Substances (Examples) Official Outcome and Restriction
Enzyme Induction Rifampicin, Carbamazepine, St. John's wort Decreased plasma concentration of Florence hormones, leading to a risk of reduced contraceptive efficacy. The regulatory label requires a mandatory separation of at least 28 days following the discontinuation of a strong inducer.
Enzyme Inhibition Grapefruit/Grapefruit Juice, certain antifungals Increased systemic exposure of hormones due to reduced metabolic clearance. Grapefruit products are explicitly documented to alter absorption and should be avoided.
Contraindicated Regimens Specific Hepatitis C agents (Ombitasvir, Paritaprevir, Ritonavir pm Dasabuvir) Formally contraindicated by regulatory bodies due to the documented risk of severe liver enzyme elevations (ALT/AST).

Other Clinically Significant Interactions

Interactions with antidiabetic agents are noted, as the hormonal components may diminish their glucose-lowering efficacy, requiring consideration in patients with diabetes. Co-administration with potassium-sparing diuretics is also classified as a significant interaction due to potential additive effects on serum potassium. All interaction statements and restrictions are derived directly from official government drug labeling.

Mechanism of Action

Florence is a small molecule that acts as a selective antagonist of the Receptor X (RX) protein, which is expressed primarily on the surface of osteoclast precursors. This molecular recognition and binding event prevents the dimerization and subsequent activation of RX by its endogenous ligand. The inhibition of RX blocks the initiation of a key signaling pathway.

The upstream blockade prevents the downstream activation and phosphorylation of key intracellular signaling molecules, including Kinase Y and NFATc1. The resulting cascade leads to a suppression of factors required for osteoclast maturation, differentiation, and survival, such as Cathepsin K and TRAP.

By modulating the activity of these specific intracellular signaling molecules, Florence shifts the physiological balance of bone remodeling toward formation over resorption. This mechanism results in a localized, cell-mediated decrease in bone matrix degradation at the site of remodeling.

Dosage and Administration Information

The administration of Florence (Dienogest and Ethinyl Estradiol), a combined oral contraceptive, is defined by a rigid 28-day cyclic pattern. The medication is delivered exclusively via the oral route for continuous, long-term use, following a structured schedule.


Administration Guidelines

The standard dosing regimen requires the patient to take one tablet daily at the same time every day. This fixed daily frequency is essential for maintaining consistent hormonal levels as required for the intended use. Florence is supplied as a fixed-dose combination product in a sequential blister pack, meaning adherence to the exact order of the tablets is mandatory for proper administration, as the pack may contain tablets of varying strengths or inactive tablets.


Cycle and Procedural Rules

The full treatment course involves 28 consecutive days of tablet-taking, followed immediately by the commencement of a new pack. There is a standardized procedure for initiating the first pack, often recommending a Day 1 start (the first day of the menstrual cycle). Use is strictly limited to women of reproductive age (post-menarche) and is not indicated for postmenopausal women. There is a detailed protocol for handling missed doses, which specifies the necessary time-sensitive procedural steps that must be taken if an active tablet is delayed or skipped.

Recent Clinical Evidence

Research evidence / Overview of studies for Florence

Evidence for Use in Contraception

The primary research for Florence was studied for evaluating its use for contraception (pregnancy prevention). The core evidence comes from large, multi-center Randomized Controlled Trials (RCTs) and Phase III regulatory efficacy trials. These studies were conducted mainly in healthy women of reproductive age who were seeking a method of hormonal contraception. Low pregnancy rates were reported in major clinical trials conducted in the studied populations. Trials described patterns observed in the studies related to ovulation inhibition when the medication was taken according to the study protocol.

Data for certain groups remain insufficient. For instance, the extrapolation of outcome data to populations with certain specific co-morbidities or those whose Body Mass Index (BMI) falls outside the most studied ranges is based on limited primary trial information within the main regulatory reports.


Evidence for Use in Moderate to Severe Acne

Florence was studied for research exploring its application in conditions such as moderate to severe acne, specifically in women whose acne may be linked to hormonal factors. The studies explored outcomes by monitoring changes in acne lesion counts and the overall acne severity scores. Trials reported measurements that indicated a decrease in the mean number of lesions in the studied populations when compared to baseline. A key research limitation is that the results apply only to the populations studied.

Direct comparative research against all alternative treatments is not comprehensively available across the regulatory research base.


Evidence for Use in Menstrual Symptom Management

Florence was evaluated in research exploring conditions such as dysmenorrhea (period pain) and menorrhagia (heavy menstrual bleeding). Research examined how symptoms evolved in the observed populations by monitoring changes in pain intensity scores and the measured reduction of menstrual blood loss. The overall evidence quality for this area is often categorized as Moderate, and evidence contributes to understanding symptom patterns. Some evidence is derived from trials focused on the progestin component (Dienogest) alone, which contributes to the observed heterogeneity in the findings.

Key Studies & References

  1. Ethinylestradiol/dienogest in oral contraception - PubMed Review
  2. Birth control pills: MedlinePlus Medical Encyclopedia - US National Library of Medicine

Frequently Asked Questions (FAQ)

Common questions about Florence (FAQ)


Q: Is Florence available only as a brand name, or is a generic version also available?

According to regulatory sources, the active ingredients in Florence, Dienogest and Ethinyl Estradiol, are featured in several combination oral contraceptive products. These combination ingredients can often be found in multiple combination oral contraceptive products that include generic formulations.

Q: What are the key differences between Florence and other similar medications in its class?

Florence is described as a Combined Oral Contraceptive (COC) featuring a specific synthetic progestin called Dienogest. Official studies and documentation indicate that the particular pairing of Dienogest and Ethinyl Estradiol is associated with antiandrogenic properties, which is a distinguishing factor from some other contraceptives.

Q: What are the most common reported side effects associated with Florence?

Official clinical trial data for this type of medication often cite side effects such as headache, nausea or vomiting, breast tenderness, and changes in the pattern of menstrual bleeding. These events reflect the high frequency of adverse reactions reported in clinical study populations.

Q: How long do the initial side effects of Florence typically last for most users?

According to clinical practice guidelines for hormonal contraceptives, common initial side effects, such as spotting, nausea, and minor headaches, often resolve within 2 to 3 months of initiating use. These effects are generally considered part of the body's initial adjustment to the medication.

Q: What serious but rare side effects are listed in the official safety information for Florence?

Official labeling for this class of medication includes warnings regarding an increased risk of serious cardiovascular events. These rare but serious side effects described in the documents include the potential for blood clots (such as Deep Vein Thrombosis or Pulmonary Embolism), stroke, and heart attack.

Q: Does regulatory information indicate that Florence can affect sleep patterns or cause insomnia?

Official adverse reaction reports for this drug class often include trouble sleeping (insomnia) as a potential side effect. Regulatory sources also indicate that some users may report feeling nervous or irritable.

Q: Is weight change, either gain or loss, a commonly reported side effect of Florence?

Weight gain is frequently reported by individuals using hormonal contraceptives. However, large clinical studies comparing the drug class to a placebo have generally not established a causal relationship between the medication and substantial weight change.

Q: What should be done in the event of an allergic reaction to Florence?

Official patient information describes severe adverse reactions as an untoward medical occurrence that may result in hospitalization. Patient information typically advises immediately seeking emergency assistance if signs of a severe allergic reaction are observed, such as rash, hives, swelling of the face, tongue, or throat, or trouble breathing.

Q: What are the official warnings about combining Florence with alcohol?

Official regulatory documents typically do not issue a major warning regarding the combination of Florence with alcohol (ethanol). However, drug interaction summaries generally classify this as a minor interaction.

Q: Does Florence interact with common over-the-counter pain relievers or fever reducers?

Regulatory drug interaction databases do not typically list a major interaction between combined oral contraceptives and common nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or aspirin.

Q: How long does it typically take for a person to start feeling the intended effects of Florence?

Official patient information for contraceptive use generally states that the medication should be taken daily for seven consecutive days to be considered fully effective. Regulatory documents often describe the use of a back-up method until this seven-day period is completed.

Q: What is the general timeline for achieving the maximum benefit from Florence treatment?

For therapeutic effects beyond contraception, such as improvement in acne or cycle control, official clinical guidelines indicate it may take several menstrual cycles (e.g., 2 to 3 months) to become noticeable. The full therapeutic benefit is not typically immediate.

Q: Are there any known factors that can slow down or speed up the onset of Florence’s effects?

Official research indicates that the medication's effectiveness can be reduced by factors that interfere with absorption or metabolism. These include experiencing vomiting or severe diarrhea shortly after taking a pill or the co-administration of strong enzyme-inducing drugs.

Q: Is Florence secreted into breast milk, according to regulatory data?

Official sources, including those that review medication safety during lactation, state that both hormones in Florence are excreted into breast milk. Furthermore, the estrogen component may reduce milk supply. Because of this, the medication is generally not recommended for use during the breastfeeding period.

Q: What are the official guidelines regarding missing a regular dose of Florence?

Regulatory documents contain a detailed protocol which states that taking a missed active dose within 12 hours generally does not reduce contraceptive protection. If the dose is missed by more than 12 hours, contraceptive protection may be reduced, and specific procedural steps and back-up methods are generally described in the protocol based on the week of the cycle.

Q: Is Florence classified as a controlled substance?

Combined oral contraceptives, including Florence, are generally classified as prescription-only (Rx) medications. Regulatory bodies typically do not designate them as controlled substances under federal or national controlled substances acts.

Q: Do regulatory documents mention any potential for overdose with Florence?

Official instructions regarding overdose generally state that serious effects are not expected if too many tablets are taken. Potential effects may include nausea, vomiting, or withdrawal bleeding. Official patient information often describes contacting a poison control center in cases where an overdose is suspected.

Q: Can Florence affect the results of routine lab tests or blood work?

Yes, regulatory prescribing information states that this medication may affect the results of certain lab tests. These changes can involve factors such as binding globulins and coagulation parameters. Patients should inform lab personnel that they are taking this medication.

Q: Does Florence require a gradual discontinuation process, or can it be stopped abruptly?

Official instructions describe that the general discontinuation of the pill is often done abruptly (when the pack is finished). However, if stopping due to an upcoming surgery or certain health risks, the guidelines require a specific instruction to stop 4 weeks before and through 2 weeks after the event.

Q: Is a follow-up appointment needed shortly after starting Florence to monitor for side effects?

Clinical practice guidelines recommend that a follow-up visit occur 1 to 3 months after beginning a new hormonal contraceptive. This visit is intended to address any adverse effects or adherence issues that the user may be experiencing.

Q: What is the expected duration of action or effect for a single dose of Florence?

The medication is designed to be taken once daily to maintain consistent hormonal levels necessary for its intended use. The daily dosing ensures that the concentration of the hormones in the body remains stable throughout the 24-hour period.

Q: What happens in the body when Florence is processed, according to pharmacokinetics information?

The processing of the hormones in Florence is primarily affected by metabolic clearance, particularly through the CYP3A4 enzyme system in the liver. This system governs the metabolism and clearance of the medication, which explains why substances that affect CYP3A4 activity can alter Florence’s plasma concentration.

Q: What is the difference between the approved uses of Florence and other commonly discussed uses?

The primary approved indication for Florence is contraception (pregnancy prevention). However, regulatory research also includes studies exploring its use for conditions such as moderate to severe acne and menstrual symptom management in certain populations.

How should Florence be stored and disposed of?

How to Store and Dispose of Florence?

The storage and disposal of Florence (Dienogest/Ethinyl Estradiol oral tablets) must adhere strictly to regulatory guidelines to maintain product quality and public safety.

Storage Requirements

Florence must be stored at Controlled Room Temperature, defined as 20 C to 25 C (68 F to 77 F). The product must be protected from direct light and moisture, and patients must avoid freezing the tablets or exposing them to excessive heat above 30 C. Always keep the medicine in its original closed container and store it out of the sight and reach of children.

Disposal Instructions

Do not dispose of unused or expired Florence by flushing it down a drain or throwing it in the household trash. Consult a pharmacist or healthcare professional for instruction on proper disposal methods, ensuring compliance with all local and national pharmaceutical waste regulations.

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

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