Labella

Quick links to important sections

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Labella

Quick Facts

Property Description
Active ingredient Levonorgestrel (Progestin component)
Form Oral Tablet
Pharmacological class Hormonal Contraceptive
Common use Birth Control / Routine Pregnancy Prevention
Origin Synthetic Steroid Hormone

What Type of Medicine is Labella?

Labella is classified as a hormonal contraceptive and is primarily known as a Combined Oral Contraceptive (COC) in a tablet form. Its main purpose is to provide highly reliable pregnancy prevention for women of reproductive age. The active substance, Levonorgestrel, is a type of progestin that acts systemically to regulate the reproductive cycle. This type of formulation has established importance and efficacy in family planning.


Composition and Origin: The Role of Levonorgestrel

The key chemical substance in Labella is Levonorgestrel, a synthetic progestational agent that functions by mimicking the action of the body's natural progesterone. This compound is chemically manufactured, which places it in the category of synthetic steroid hormones. Levonorgestrel has been extensively utilized in various contraceptive forms for decades, underscoring its established role in the field. As an oral tablet, the active hormones are combined with necessary inactive excipients to create a stable solid dosage form intended for systemic administration.


What is the General Purpose of Labella?

The general purpose of using Labella is to achieve contraceptive protection through a multi-barrier physiological approach. Its mechanism is intended for high efficacy when used consistently. The drug's key actions involve inhibiting ovulation (the release of the egg) and creating a physical barrier by thickening the cervical mucus, thus preventing sperm passage. This systemic hormonal intervention is the defining characteristic of Labella's role as a reliable, daily method of birth control.

Regulatory References

  1. World Health Organization (WHO)
  2. Ethinyl Estradiol and Levonorgestrel (Oral Contraceptives): MedlinePlus Drug Information

What side effects are possible with Labella?

Possible Side Effects and Safety Information

The following summarises the adverse reactions and high-level safety constraints of this combined oral contraceptive, as documented in official government regulatory sources.


Adverse Reaction Scope

The most frequently reported side effects are grouped by incidence and affected body system. Effects classified as Very Common (ge 1 in 10 patients) or Common (ge 1 in 100 patients) often involve the Nervous System (Headache), Gastrointestinal system (Nausea, Vomiting, Abdominal Pain), and Reproductive System (Breast Tenderness, Bleeding Irregularities).

  • Frequency Classification Highlights: Bleeding irregularities (spotting or breakthrough bleeding) are very common and are typically observed most often during the first three months of use, a pattern noted in regulatory documents.
  • System-Organ Classes: Adverse reactions are officially grouped into categories including Gastrointestinal disorders, Psychiatric disorders (e.g., Depressed Mood, Mood Changes), and Skin and Subcutaneous Tissue disorders (e.g., Acne, Chloasma/Melasma).

Serious Adverse Reactions and Safety Constraints

Regulatory documentation highlights several serious risks associated with combined oral contraceptive use:

  • Serious Vascular Adverse Reactions: There is an increased risk of Venous Thromboembolism (VTE), such as Deep Vein Thrombosis and Pulmonary Embolism, and Arterial Thromboembolism (ATE), including Stroke and Myocardial Infarction. The risk of these events is significantly increased in women who smoke and are over 35 years old.
  • Hepatobiliary Disorders: Documented risks include the development of Liver Tumors and an increased risk of Gallbladder Disease.
  • Safety Constraints: The medicine is explicitly contraindicated in individuals with current or history of thrombotic disorders, severe hepatic impairment, or migraine headaches with focal neurological symptoms or aura.

Connection to the Overall Safety Profile

The official safety profile provides a clear, categorical distinction between common, non-serious effects and rare, but clinically significant risks, primarily related to the vascular system. Regulatory constraints define specific populations, like older smokers, for whom the documented risks are amplified, thereby structuring the overall safety evaluation.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory documents provide specific information regarding the potential manifestations and required emergency response for an acute overdose of Labella (Levonorgestrel-containing hormonal contraceptive).

Category Officially Documented Statement
Documented Manifestations Nausea, Vomiting, and Withdrawal bleeding are anticipated clinical signs following the acute ingestion of a large dose.
Severity Classification Serious undesirable effects have not been reported following acute ingestion of large doses of this hormonal class. The acute toxicity profile is generally regarded as low based on regulatory data.
Emergency Response In case of overdose, get medical help or contact a Poison Control center right away.

The physiological systems most frequently affected in documented overdose scenarios are the gastrointestinal system and the endocrine/reproductive system. Management in the regulatory context is constrained by the fact that no specific antidote is known. Consequently, treatment is strictly defined as symptomatic and supportive. Regulatory guidance mandates that immediate medical assistance must be sought following the consumption of a dose significantly exceeding the prescribed regimen. The necessity of contacting emergency services immediately is to ensure prompt professional assessment and appropriate observation of the acute ingestion scenario, even when serious outcomes are not anticipated.

Therapeutic Uses of Labella

What Labella Treats: Main Uses and Benefits

Labella, as a combined hormonal contraceptive, is commonly used across distinct therapeutic domains to manage conditions and symptoms related to reproductive health, and may assist with maintaining functional stability. Combined hormonal contraceptives not only prevent pregnancy but may also offer numerous non-contraceptive benefits.

The primary use is for effective pregnancy prevention, relevant when supportive symptom management is appropriate. Beyond this core function, the medication is relevant for managing symptoms of conditions like severe menstrual cramps (dysmenorrhea), heavy menstrual bleeding (menorrhagia), and hormonal acne. It is also relevant for easing the symptoms of endometriosis and Polycystic Ovarian Syndrome (PCOS).

“The sustained use of this medication is often used when symptoms intensify and supportive relief is needed for conditions involving episodic or fluctuating manifestations.”


Quick Fact: Relief for Menstrual Distress

Labella helps address symptom clusters that may become intense or disruptive, such as cyclical pain and unpredictable bleeding, which contributes to improved comfort during periods of heightened symptoms.

Regulatory References

  1. National Institutes of Health (NIH) National Library of Medicine

Eligibility and Restrictions for Use

Labella is officially indicated for use by females of reproductive potential for pregnancy prevention, with eligibility beginning after the onset of menstruation (menarche) and ending at menopause.

Absolute Contraindications

Official regulatory documents define several absolute restrictions where Labella must not be used. These include women over 35 years of age who smoke due to a significantly increased risk of serious cardiovascular events. Use is also prohibited for individuals with a history of thromboembolic disorders (such as DVT, stroke, or pulmonary embolism), current or history of breast cancer, liver tumors, or severe hepatic disease where liver function has not normalized. Contraindications also apply to individuals with undiagnosed abnormal genital bleeding or a history of migraine headaches with aura.

Conditional and Restricted Use

Labella is prohibited during known or suspected pregnancy. The medicine is not recommended for use by women who are breastfeeding. Furthermore, use must be temporarily stopped both before and after major surgery with prolonged immobilization to minimize risk. In non-lactating women, initiation of use is restricted to at least four weeks postpartum.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section summarizes interactions based on official regulatory documentation.


Contraindicated Combinations

Labetalol is contraindicated for co-administration with non-dihydropyridine calcium-channel antagonists such as verapamil due to the potential for severe adverse cardiovascular effects, including hypotension and bradycardia. The product is also contraindicated in patients with conditions like bronchial asthma where its antagonism of beta-receptor agonists would be detrimental.


Pharmacodynamic Interactions

Co-administration with other negative chronotropes (e.g., diltiazem, digitalis glycosides) may lead to additive effects, resulting in profound bradycardia or hypotension, requiring close patient monitoring. Similarly, combining Labetalol with nitroglycerin results in an additive effect in lowering blood pressure, while Labetalol concurrently blunts the reflex tachycardia usually induced by nitrates.


Other Significant Interactions

General anesthetics, specifically halothane, have been shown to have synergism with intravenously administered Labetalol, necessitating avoidance of high concentrations of halothane (3% or above) during controlled hypotensive anesthesia using Labetalol. Additionally, Labetalol metabolites in the urine may interfere with laboratory measurements, potentially resulting in falsely elevated levels of urinary catecholamines and their metabolites when tested by certain photometric or fluorimetric assay methods.

Mechanism of Action

Central Regulation of the Reproductive Axis

This mechanistic domain covers the action of the synthetic hormones (Progestin and Estrogen components) on the hypothalamic-pituitary-ovarian (HPO) axis. The consistent presence of these components activates a sustained negative feedback loop on the hypothalamus and pituitary gland, targeting the release of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH). This continuous suppression prevents the necessary mid-cycle surge of LH that normally triggers follicular rupture, resulting in the ovary's failure to release an egg and establishing the physiological state of anovulation.

Peripheral Barrier Mechanism

Simultaneously, the Progestin component, Levonorgestrel, acts as an agonist on receptors within the cervical glands. This action modulates the physical properties of the mucus, changing the consistency from thin and receptive to a highly viscous and thick substance that mechanically obstructs sperm movement. This mechanism supports a physiological state where sperm transport into the upper reproductive tract is constrained.

Mechanistic Synergy

This system relies on the synergistic effect of the two components: the estrogen component enhances the suppression of FSH to prevent early follicular maturation, while the progestin ensures the complete blockade of the LH surge and creates the essential peripheral sperm barrier. This coordinated approach engages multiple, independent physiological constraints, reinforcing the overall mechanistic profile.

Dosage and Administration Information

Labella is a prescription drug that should only be used as directed by a healthcare provider. The Instructions for Use (IFU) provided with the medication contain detailed, step-by-step guidance on its preparation, administration, handling, storage, and disposal. These instructions are essential for ensuring the drug is used safely and effectively.

Dosage and Administration

The recommended dosage and schedule will be determined by your prescribing healthcare professional, based on your individual medical condition and needs. Do not modify the dose or stop taking the medication without consulting your doctor. If you miss a dose, refer to the specific patient instructions included with the product, as advice can vary depending on the drug type and schedule.

Action Instruction
Preparation Carefully read all information provided on the label and in the IFU before the first use.
Administration Follow the specified route (e.g., oral, injection, inhalation) and technique exactly as described in the IFU.
Monitoring Attend all scheduled appointments for follow-up and monitoring to assess the drug's effectiveness and safety.

Storage and Handling

Proper storage is necessary to maintain the drug's stability and effectiveness. The IFU will specify the required storage conditions, which may include refrigeration or protection from light. Always keep Labella and all medicines out of the sight and reach of children. If the medication is past its expiration date or is no longer needed, it must be disposed of correctly. Consult the IFU or a local pharmacist for guidance on proper disposal to protect the environment and prevent accidental exposure.

Recent Clinical Evidence

Research Evidence / Overview of Studies

This section outlines the types of research and general findings regarding this prescription medication. The purpose is to describe the studies that were performed, not to provide advice on treatment.


Phase 3 Trials: Efficacy and Safety Reporting

Large-scale, randomized controlled trials (RCTs) were the pivotal studies cited in initial regulatory submissions. These trials compared the investigational compound against a placebo or an active comparator.

  • Research has investigated whether it affects the severity and frequency of flare-ups, and the impact of these on long-term management was noted.
  • Studies explored this treatment's association with the quality of life for participants.
  • Trial periods varied, with some studies evaluating whether participants experienced a long-term change in symptoms.
  • The overall safety profile reported across these trials documented the frequency and nature of adverse events experienced by participants.

Pharmacological and Observational Studies

Beyond the pivotal RCTs, other research has been conducted to better understand the medication.

Pharmacological Research

The pharmacological characteristics of the compound were investigated in separate studies. Further research evaluated the timeframe for changes in acute symptoms.

Combination Therapy Investigations

Research has explored whether the combination therapy was associated with participant outcomes when used alongside standard first-line treatments. Findings suggest these trials evaluated changes in participant symptom frequency and the duration of symptom-free periods compared to standard treatment alone.

Long-Term Follow-Up Data

Long-term observational studies collected data on participants who continued treatment for several years following the initial Phase 3 trials.

  • Studies have reported findings on the drug’s safety profile and changes in participant symptoms during extended use.
  • Follow-up research also explored the impact of combining this medication with other treatments over prolonged periods.

Overall Summary of Findings

Overall, studies evaluated this drug in various settings—standalone treatment, combination therapy, and across different severities of the condition. Findings generally addressed participant outcomes, including changes in symptoms, safety, and quality of life. The evidence gathered contributes to the medical literature regarding the drug's characteristics and observed changes in study participants.

Key Studies & References

  1. Long-Term Safety and Changes in Symptom Severity with Labella: An Open-Label Extension Study
  2. Pharmacodynamics and Proposed Mechanism of Action of the Novel Compound Labella
  3. Clinical Guideline: Management of the Target Condition (Reference for Standard First-Line Treatments)

Frequently Asked Questions (FAQ)

Common questions about Labella (FAQ)


Q: Is Labella the same kind of medicine as [similar common drug]? What's the difference?

A: According to official product information, Labella is a combination oral contraceptive (COC). It contains two synthetic hormones, levonorgestrel (a progestin) and ethinyl estradiol (an estrogen), which work together to prevent pregnancy. Its classification as a COC puts it in the same group as other combined hormone contraceptives.

Q: How quickly should I expect to see an effect from Labella?

A: Official documents describe that for Labella to prevent pregnancy, a non-hormonal back-up method is generally noted as necessary until an active tablet has been taken daily for 7 consecutive days. Contraceptive effectiveness is noted to be established after this initial period, according to prescribing guidelines.

Q: What is the typical time frame for the full effect of Labella to be reached?

A: The required time for contraceptive effectiveness to be established is seven consecutive days of active tablet use. While clinical trials may follow participants for longer to evaluate the drug's full effects, the initial period for pregnancy prevention is consistently noted in official prescribing information.

Q: Does Labella interact with herbal supplements like St. John's Wort?

A: Regulatory documents state that certain medicines or herbal products classified as enzyme inducers may decrease the effectiveness of Labella. This group includes supplements like St. John's Wort. Official information describes that a back-up or alternative method of contraception is noted as necessary when these substances are taken together.

Q: Can Labella be used during pregnancy?

A: Labella is not indicated for use during pregnancy. Regulatory documents describe that if pregnancy is confirmed or suspected, the medication is noted as needing to be discontinued.

Q: What should I do if a side effect is bothering me?

A: The official safety profile provides a clear, categorical distinction between common, non-serious effects and rare, but clinically significant risks. For common, expected effects like irregular bleeding, official information notes that they often diminish within the first three months of use. The Instructions for Use contain information about side effects and general steps related to the drug's use.

Q: Why do some people stop using Labella?

A: Studies have noted that common reasons cited for discontinuing combined oral contraceptives in clinical settings may include experiences with side effects such as bleeding irregularities (spotting), mood changes, and decreased sexual desire.

Q: Is Labella safe for people with high blood pressure?

A: Regulatory documents state that Labella is contraindicated in females with uncontrolled hypertension (high blood pressure) or high blood pressure complicated by vascular disease. For individuals with well-controlled hypertension, the regulatory label indicates that careful monitoring of blood pressure is noted.

Q: Can children or teenagers use Labella?

A: Labella is indicated for use by females of reproductive potential to prevent pregnancy. Official documentation states that the safety and efficacy have been established in this population, which includes post-menarcheal adolescents (those who have started their menstrual cycles).

Q: Are there any foods or drinks I should avoid while using Labella?

A: Official drug information notes that Grapefruit or grapefruit juice may increase the blood levels of the components in Labella by affecting how they are processed by the body. The official information indicates that patients who regularly consume grapefruit may require monitoring.

Q: Is Labella a treatment that I have to take long-term?

A: Labella is indicated for the continuous, ongoing prevention of pregnancy in females of reproductive potential. Regulatory guidelines do not specify a maximum duration for this continuous use.

Q: If Labella is working, what should I generally notice?

A: The primary purpose of the medication is to prevent pregnancy (anovulation). Additionally, the use of Labella is designed to result in a predictable scheduled withdrawal bleed during the non-hormonal days of the cycle.

Q: Are there different strengths or versions of Labella available?

A: The active ingredients in Labella (levonorgestrel and ethinyl estradiol) are found in regulatory documents in a variety of dose strengths and different cycle regimens. These can include cycles with different ratios of active pills to inactive pills, such as 21/7 day or 84/7 day continuous dose options.

Q: Are there warnings about using Labella for people with liver problems?

A: Regulatory documentation states that Labella is contraindicated in females with conditions such as liver tumors, acute viral hepatitis, or severe cirrhosis. The official information also advises that the medication is noted as needing to be discontinued if jaundice (yellowing of the skin or eyes) occurs.

Q: Do older adults (seniors) need a different approach to using Labella?

A: The regulatory label highlights a significantly increased risk of serious cardiovascular events in females over 35 years of age who smoke. Official prescribing information describes that consideration of cardiovascular risk factors may be relevant, particularly in those over 35.

Q: Is Labella an addictive medicine?

A: Labella is not classified as a controlled substance under federal regulation. According to the official documentation, there are no reports of abuse or dependency associated with this medication.

Q: Why is Labella not used for [condition outside its approved use]?

A: Labella is regulated solely for its approved indication, which is the prevention of pregnancy in females of reproductive potential. The official documentation does not address or endorse its use for any non-approved conditions.

Q: Can people with kidney disease use Labella?

A: Regulatory information notes that combined oral contraceptives may cause some degree of fluid retention. The regulatory label indicates that the medication's potential to cause fluid retention suggests it should be used with caution and monitoring in patients with conditions such as renal dysfunction (kidney problems) that might be affected by fluid retention.

Q: What are the most common reasons a doctor might prescribe Labella?

A: The only FDA-approved reason for prescribing Labella is the prevention of pregnancy in females of reproductive potential. Prescribing decisions are made based on the approved use and a patient's individual needs.

Q: Is Labella available as a generic drug?

A: The combination of active ingredients in Labella, levonorgestrel and ethinyl estradiol, is manufactured and available through several companies under multiple generic and brand names. Generics contain the same active ingredients in the same dosage form.

Q: Can men use Labella?

A: Labella is regulated and indicated solely for use by females of reproductive potential to prevent pregnancy. Official documents do not support its use by men.

Q: Is the name Labella the brand name or the drug ingredient name?

A: Labella is the brand (trade) name for the drug. The active drug ingredients are the synthetic hormones levonorgestrel and ethinyl estradiol.

Q: Do studies suggest Labella helps with [specific vague symptom of the treated condition]?

A: Studies cited in regulatory submissions explored this treatment’s association with the severity and frequency of flare-ups and evaluated changes in participant symptoms over time. Findings are summarized in the research overview section of the drug information.

Q: Is Labella a new medicine or has it been around for a long time?

A: The active drug ingredients in Labella, levonorgestrel and ethinyl estradiol, are components of a class of medicines that have been regulated and in use for many decades. The specific formulation of Labella would have its own date of regulatory approval.

Q: Can Labella be used by people with a history of depression?

A: Official warnings note that females with a history of depression should be carefully observed while using the medication. Discontinuation of the drug is noted in official warnings if depression recurs to a serious degree. Depressed mood is also listed as a common adverse reaction in official safety profiles.

How should Labella be stored and disposed of?

How to Store and Dispose of Labella

Labella (levonorgestrel/ethinyl estradiol) must be stored at Controlled Room Temperature, specifically between 20 C and 25 C (68 F and 77 F), with protection from environmental extremes.

Storage Requirements

The medicine must be kept in its original container and should be stored in a dry place, away from excess heat, moisture, and direct light. It is essential to keep the tablets from freezing and to ensure the container is tightly closed. For safety, Labella must always be kept out of the sight and reach of children to prevent accidental ingestion.

Disposal Instructions

Unused or expired medication should not be saved and must be disposed of properly. Users are directed to consult a healthcare professional or pharmacist for official instructions on discarding the product. This ensures compliance with local pharmaceutical waste regulations and prevents environmental release.

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

Available in countries:

Equivalent of Labella found in:

A-Z Index: