Ludeal

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Medically reviewed

Laura Arias

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 Ludeal

Ludeal is a prescription-only medication classified as a Combined Oral Contraceptive Pill (COC), designed for oral administration in the tablet form. Its fundamental purpose is the prevention of pregnancy. The drug entity is recognized as one of the effective and widespread hormonal methods available for women to manage their reproductive health.

Property Description
Active ingredients Ethinyl Estradiol, Levonorgestrel
Form Oral Tablet (Combination)
Pharmacological class Hormonal Contraceptives (Estrogens/Progestins)
Common use Prevention of pregnancy
Origin Synthetic

What Type of Medicine is Ludeal?

Ludeal is specifically categorized as an Estrogens and Progestins (Combination) product, which is the most commonly prescribed type of birth control pill. This specific combination of synthetic hormones is clinically recognized for its high contraceptive efficacy. This product type is indicated for use by women to prevent pregnancy. This classification confirms that the medication contains two different synthetic hormone components, a synthetic estrogen and a synthetic progestogen, used together to offer reliable contraception through combined hormonal activity.

Composition and Origin: The Synthetic Combination

The core identity of Ludeal is rooted in its two active ingredients: Ethinyl Estradiol, which is a synthetic estrogen, and Levonorgestrel, which functions as a synthetic progestogen. This medication is a combination product because it contains both hormonal components, which are laboratory-synthesized compounds, not naturally occurring hormones. This synthetic origin ensures a consistent dose and predictable set of physiological actions when the medicine is taken as an oral tablet.

How Ludeal Achieves Contraception

Ludeal achieves its general therapeutic purpose of contraception by coordinating the effects of its two hormonal components to interrupt the natural reproductive process. The combination acts primarily by causing the suppression of ovulation, thereby preventing the release of an egg from the ovary. Additionally, it helps establish an effective barrier by thickening the cervical mucus and altering the uterine lining, collaboratively hindering the steps necessary for fertilization and implantation.

Regulatory References

  1. WHO Essential Medicines List - Ethinylestradiol + levonorgestrel
  2. NIH StatPearls: Contraception
  3. FDA Labeling (Levonorgestrel/Ethinyl Estradiol)
  4. FDA Product Labeling
  5. NIH MedlinePlus: Ethinyl Estradiol and Levonorgestrel

What side effects are possible with Ludeal?

Possible Side Effects and Safety Information

The safety profile for this medicine, which contains levonorgestrel for emergency contraception, is defined by adverse reactions classified according to their official frequency and the body system affected. Most observed effects are temporary and appear shortly after administration.

Frequency-Classified Adverse Reactions

Adverse effects are categorized based on their official classification in regulatory documents. These effects are organized by the system-organ class involved:

  • Very Common (ge1/10): Effects frequently observed include nausea, fatigue, headache, and lower abdominal pain.
  • Common (ge1/100 to <1/10): Effects commonly documented include vomiting, dizziness, diarrhoea, breast tenderness, and changes in menstrual bleeding patterns, such as spotting or delayed menstruation.

System-Organ-Class Groupings

Side effects are officially mapped to the following major body systems:

  • Gastrointestinal Disorders: Nausea, vomiting, diarrhoea, lower abdominal pain.
  • Nervous System Disorders: Headache, dizziness.
  • Reproductive System and Breast Disorders: Breast tenderness, irregular bleeding, and delayed menstruation.

Serious Safety Considerations

The most serious safety consideration, as highlighted in official labeling, is the risk of ectopic pregnancy if the medicine fails to prevent conception. Furthermore, efficacy may be reduced in individuals with severe gastrointestinal malabsorption syndromes, and the medicine is generally not recommended for those with severe hepatic dysfunction.

Administration Constraints

The official labeling stipulates that this product must be used strictly for emergency contraception and is explicitly not intended for use as a routine or scheduled method of birth control. The medicine is also documented as ineffective if implantation has already occurred.

Overdose and Emergency Response

The official regulatory profile for Ludeal overdose is strictly defined by documented clinical manifestations and mandatory emergency actions established by government health authorities. Acute ingestion of a large dose of this medicine may result in certain anticipated physiological responses.

Documented Manifestations

Overdose exposure is primarily associated with gastrointestinal symptoms, including nausea and vomiting. Additionally, patients may experience withdrawal bleeding, which is a documented presentation related to the acute, high hormonal exposure noted in prescribing information. These are the expected signs detailed in the regulatory texts.

Severity and Required Actions

While regulatory documents explicitly state that serious undesirable effects have not been reported following the acute ingestion of large doses of this type of hormonal contraceptive, the mandated emergency response is strict: in the event of a suspected overdose, it is officially required to get medical help or to contact a Poison Control Center right away for necessary guidance. This guidance governs when immediate medical attention must be sought.

Official Management Profile

The official guidance confirms that no specific antidote is known for this overdose. Consequently, medical management is described as symptomatic in nature, focusing on addressing the observed clinical manifestations until the effects subside. This reflects the non-specific, supportive treatment outlined in regulatory labeling.

Therapeutic Uses of Ludeal

Quick Facts

  • Emergency Contraception: Assists in reducing the chance of pregnancy following unprotected sexual intercourse.
  • Timeline of Use: Intended for use as soon as possible after an event and not for routine or scheduled contraception.

What Ludeal Treats: Main Uses and Benefits

Ludeal (levonorgestrel) is a medication utilized as an emergency contraceptive option. Its primary use is to assist in preventing pregnancy after instances of unprotected sexual intercourse or known or suspected contraceptive failure. It is intended only for occasional use in these circumstances and is not considered a standard method of birth control.

The medication's objective is to reduce the probability of conception following an event. It is generally recognized that effectiveness is associated with taking the medication as soon as possible after unprotected sexual contact. Ludeal is a single-ingredient product designed specifically for post-coital application.

Regulatory References

  1. NIH MedlinePlus guidance

Eligibility and Restrictions for Use

Official Eligibility Profile

Ulipristal Acetate (the active ingredient in Ludeal) is governed by strict eligibility rules defined in regulatory documents worldwide (e.g., FDA, EMA).

Classification Population/Condition Regulatory Status
Contraindicated Known or suspected pregnancy Must not be used
Contraindicated Hypersensitivity to the active substance or excipients Must not be used
Restricted Use Breastfeeding women Not recommended; some labels advise interruption
Use Not Recommended Severe hepatic impairment Lack of specific studies
Use Not Established Premenarcheal (pre-pubertal) and postmenopausal females Not intended for use

Eligibility is limited to women of reproductive age for occasional use only as an emergency contraceptive. The medicine is not indicated for the termination of an existing pregnancy. Its eligibility profile is further restricted by concurrent use of certain medications, such as strong CYP3A4 inducers (e.g., rifampin, St. John's Wort), as this may significantly decrease effectiveness.

What should I know about interactions with other medicines?

Ludeal’s official interaction profile is defined predominantly by pharmacokinetic interactions that reduce the drug's effectiveness. Co-administration with enzyme-inducing medicinal products or certain herbal products is documented to decrease the plasma concentrations of levonorgestrel. This reduction in exposure results from the enhanced metabolic clearance of levonorgestrel, primarily via CYP enzyme induction.

Specific interacting substances explicitly listed in regulatory documents include certain antiepileptic drugs, such as phenytoin and carbamazepine, and antituberculosis treatments like rifampicin. The herbal product St. John's wort (Hypericum perforatum) is also documented to reduce levonorgestrel levels through enzyme induction. The regulatory label notes that levonorgestrel may increase the risk of toxicity from co-administered cyclosporin by inhibiting its metabolism.

Furthermore, a specific administration-timing rule is imposed: if vomiting occurs within two to three hours after taking the tablet, regulatory guidance advises that consideration should be given to repeating the dose, as this event affects absorption. Women who have used enzyme-inducing drugs within the last four weeks are noted as a population requiring specific clinical consideration due to the risk of reduced efficacy.

Mechanism of Action

Ludeal, a synthetic progestin (levonorgestrel), functions primarily as a selective progesterone receptor modulator. The compound exhibits high affinity for and modulates progesterone receptors within reproductive tissues, including the hypothalamus, pituitary, ovary, and endometrium.

Its main action is mediated by interference with the hypothalamic-pituitary-ovarian axis. Specifically, Ludeal binding to the progesterone receptor alters neurohormonal feedback, attenuating the pulsatile release of Gonadotropin-Releasing Hormone (GnRH) from the hypothalamus. This reduces the subsequent secretion of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) from the anterior pituitary gland. The resulting suppression of the pre-ovulatory LH surge prevents the cellular signaling cascade necessary for follicular rupture, leading to the systemic inhibition or delay of ovulation.

Additionally, Ludeal modifies end-organ function. In the cervix, it increases the viscosity of the cervical mucus, creating a physical barrier that restricts sperm transit. Within the uterus, the compound induces localized morphological changes to the endometrium, including stromal pseudodecidualization and glandular atrophy, which alter the tissue environment. Systemically, Ludeal also acts as a weak androgen receptor agonist and glucocorticoid receptor antagonist.

Dosage and Administration Information

How to Use Ludeal: Administration Guidelines

Ludeal (levonorgestrel) is administered as an oral tablet and is strictly indicated for use as an occasional emergency contraceptive measure, not as a primary, routine method of birth control. The use of this medicine is defined by a critical time window and a precise single-course dosing schedule.


Dosing and Administration

The most important instruction is the timing of administration. The tablet must be taken as soon as possible after an instance of unprotected intercourse, and generally no later than 72 hours (3 days) from the event. The medicine can be taken with or without food, at any point during the menstrual cycle.

Two principal dosing regimens are utilized:

  • Single-Dose Regimen: One 1.5 mg tablet taken once.
  • Two-Dose Regimen: One 0.75 mg tablet taken initially, followed by a second 0.75 mg tablet taken exactly 12 hours after the first.

Procedural Constraints and Follow-Up

If the tablet is vomited within two to three hours of being taken, a repeat dose should be considered immediately. This medicine is not intended for use by pre-menarcheal patients or postmenopausal women. For women taking certain enzyme-inducing medications, a total dose of 3 mg may be used. Following the emergency dose, a reliable barrier method of contraception should be used, or routine hormonal contraception should be continued or initiated immediately.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Ludeal

This section provides an overview of the research and study types that regulatory bodies rely on when evaluating Ludeal (a Combined Oral Contraceptive). The findings describe group patterns and reflect the specific conditions under which the studies were conducted.

Evidence for Use in Preventing Pregnancy

The core evidence for Ludeal was evaluated in Randomized Controlled Trials (RCTs) and open-label studies, which are used in research exploring how hormonal contraceptives function. These studies primarily enrolled healthy women of reproductive age who were sexually active and at risk for becoming pregnant. The primary metric used in these trials is the Pearl Index (PI). The PI is a standardized metric that describes the number of unintended pregnancies observed per 100 women during one year of use in the study setting.

Research examined how often pregnancy occurred when the product was taken with strict adherence, and studies monitored outcomes related to the Pearl Index under typical use (real-world adherence) in the observed populations. The findings describe group patterns related to the contraceptive performance measured in trials. This research describes the observations made under the specific conditions of the studies.

Studies on Menstrual Cycle Patterns

Beyond preventing pregnancy, research explored other physiological outcomes related to the use of Ludeal. These studies monitored participants over defined time intervals to document changes in menstrual cycle patterns. Specifically, researchers examined outcomes related to systemic or functional imbalance by tracking the presence, frequency, and duration of both scheduled withdrawal bleeding and unscheduled bleeding or spotting.

Research describes patterns observed during the study period, with studies monitoring the consistency of menstrual cycles. The research explores short-term changes and reports how patient-reported outcomes describing perceived discomfort evolved in observed populations. This research contributes to describing symptom patterns observed during the study.

What is Still Uncertain About the Research

A key limitation noted in regulatory reviews is the difference between the measured performance under "perfect use" in a clinical trial setting and the observed outcomes under "typical use" in the general population. This difference is associated with user adherence. Furthermore, comparative evidence is lacking, as there is limited information directly comparing this specific dose against all other individual birth control formulations in high-quality trials.

Key Studies & References

  1. Pearl Index Study With Low Dose Combined Oral Contraceptive (NCT00220324)

Frequently Asked Questions (FAQ)

Common questions about Ludeal (FAQ)


Q: What is the main difference between Ludeal and other similar medicines?

Ludeal contains a single synthetic hormone, levonorgestrel, and is designed for use as a one-time, emergency measure. In contrast, many routine birth control pills are combined hormonal products intended for daily use over a longer period. Official documents define Ludeal specifically as an emergency contraceptive.


Q: Does Ludeal start working right away?

Official guidance states that the medicine is most effective when taken as soon as possible after unprotected intercourse. Its intended actions, such as delaying ovulation, begin after administration. This product is defined by a critical time window for administration.


Q: How long does it typically take to see the effects of Ludeal?

The medicine’s primary goal is to prevent the release of an egg, and this action begins in the short term. The main active ingredient is processed by the body with a half-life of approximately 20 to 24 hours.


Q: What happens if I forget to take Ludeal for a day?

Ludeal is a single, one-time emergency dose, not a medication taken daily or on a scheduled basis. Regulatory documents emphasize that this product is not intended for routine or continuous use. This means there is no 'forgetting a dose' scenario as with daily birth control pills.


Q: Where can I find summaries of the research on Ludeal?

Authoritative summaries of the research, including clinical trial data, are available in official regulatory documents from agencies like the FDA or EMA. These documents describe key metrics used in the studies, such as the Pearl Index. You can find this information in medical library services as well.


Q: Why is Ludeal sometimes considered a 'last resort' medication?

The official designation of Ludeal is as an emergency contraceptive. Regulatory documents specify that it is not intended for use as a primary or routine method of birth control. This classification means it should be used only in emergency circumstances.


Q: Are there any specific lifestyle changes recommended when starting Ludeal?

Official instructions do not list general lifestyle changes, such as dietary adjustments or new exercise regimens, that must be implemented after taking Ludeal. However, a reliable method of routine contraception should be initiated or continued promptly after the emergency dose.


Q: Do the side effects of Ludeal usually decrease over time?

Most side effects, such as nausea and headache, are described in official documents as being temporary and appearing shortly after the medicine is administered. Since Ludeal is intended for single, acute use, there is no information on how side effects might change over long-term use.


Q: Is Ludeal a controlled substance?

According to regulatory documents, the active ingredient in Ludeal, levonorgestrel, is not classified as a controlled substance. This designation relates to the regulation of drugs with potential for abuse or dependence.


Q: Can Ludeal cause changes in my sleep patterns?

Official product information lists fatigue (tiredness) as a very common side effect and headache as common. While these effects might indirectly influence sleep, regulatory documents do not specifically list changes in sleep patterns, such as insomnia, as a classified side effect.


Q: Does Ludeal affect liver function tests?

The medicine is generally not recommended for use in individuals with severe hepatic dysfunction (severe liver issues). However, there is no explicit documentation in official regulatory summaries that addresses whether Ludeal impacts routine laboratory liver function tests.


Q: Are there any common foods or drinks that should be avoided when taking Ludeal?

Official regulatory documents do not list common foods or drinks that must be avoided when taking this medicine. The medicine can be taken with or without food. However, official guidance advises that vomiting shortly after administration may necessitate consideration of a repeat dose.


Q: Can Ludeal be taken with over-the-counter pain relievers?

The official interaction profile lists specific prescription medicines and herbal products that reduce the medicine's effectiveness. There are no major documented interactions or contraindications with common over-the-counter (OTC) pain relievers mentioned in the labeling.


Q: If I have a kidney issue, can I still use Ludeal?

Official guidance indicates that progestin-only emergency contraception is generally considered appropriate for use in patients with kidney disease, according to medical eligibility criteria.


Q: If the medicine is stopped, do the effects of Ludeal wear off quickly?

The medicine’s active ingredient is metabolized (broken down) and subsequently eliminated from the body. Studies indicate the primary active ingredient has a half-life of approximately 20 to 24 hours.


Q: Does Ludeal have potential for misuse?

Official regulatory documents explicitly state there is no information about dependence associated with the use of this medicine. It is not considered a product with potential for misuse.


Q: Can Ludeal affect blood pressure?

While progestin-only emergency contraception is generally considered safe for those with existing high blood pressure, general warnings for hormonal medicines may include monitoring for cardiovascular or blood pressure changes in observed populations.


Q: Is Ludeal a medication that requires regular monitoring?

Ludeal is administered as a single, one-time dose. Regulatory text emphasizes the importance of following up with a healthcare provider to initiate or continue routine contraception, but it does not specify requirements for regular drug monitoring.


Q: What should I do if I notice a side effect that is not listed in the main text?

Official product information instructs that if a severe, unexpected, or unlisted side effect occurs, contact with a healthcare professional or a Poison Control center is advised.


Q: Is Ludeal available as a generic medicine?

Yes, the active ingredient in Ludeal, levonorgestrel, is available under multiple generic names. This is permitted by the FDA when a drug’s patent expires and other manufacturers meet strict regulatory requirements.


Q: What's the difference between the brand name and generic Ludeal?

Generic versions contain the same active ingredient in the same strength and dosage form as the brand name product. The FDA requires that generic medicines function identically in the body to the brand-name product.


Q: Does Ludeal affect the way birth control works?

The official drug interaction profile primarily focuses on substances that may reduce the effectiveness of Ludeal. Regulatory text does not provide specific warnings that Ludeal will reduce the efficacy of routine hormonal birth control.


Q: If I have a history of heart problems, is Ludeal safe?

According to official medical eligibility criteria, progestin-only emergency contraception is generally considered appropriate for women with a history of heart problems or high blood pressure.


Q: Does Ludeal contain lactose or gluten?

Official product information indicates that the tablets contain lactose monohydrate as an inactive ingredient. Regulatory documents do not typically specify the presence of gluten, though it is generally not a component of the listed inactive ingredients.


Q: What happens if I accidentally take two doses of Ludeal close together?

Serious ill effects have generally not been reported in cases of acute ingestion of a large dose. Expected temporary symptoms may include nausea and vomiting. Official guidance advises that contact with a Poison Control center is recommended in case of overdose.


Q: Is it okay to drink alcohol in moderation while taking Ludeal?

While official documents do not cite a direct harmful interaction with alcohol, consumption may increase common side effects such as nausea and vomiting. Vomiting shortly after taking the medicine requires consideration of a repeat dose to maintain effectiveness.


Q: What is the risk of dependence or addiction associated with Ludeal?

Official regulatory documents clearly state that the active ingredient, levonorgestrel, is not associated with information about dependence or addiction.


Q: How does Ludeal primarily leave the body?

The medicine’s active ingredient is metabolized (broken down) by the body’s systems. It is subsequently eliminated primarily through the urine and feces, as described in official pharmacokinetic data.


Q: If I have diabetes, can I take Ludeal?

Official medical eligibility criteria indicate that progestin-only emergency contraception is generally considered appropriate for use in women with diabetes.


Q: Has Ludeal received any safety alerts since its approval?

Official regulatory documents include summaries of adverse effects reported during the post-marketing period. This continuous monitoring informs the overall safety profile and may result in updates to the official warnings and side effects sections.

How should Ludeal be stored and disposed of?

How to Store and Dispose of Ludeal

Ludeal tablets must be stored strictly according to official regulatory conditions to maintain their stability.

Storage Requirements

Ludeal requires storage at Controlled Room Temperature, which is defined as 20 C to 25 C (68 F to 77 F).

  • The product must be kept out of the reach and sight of children.
  • Store the tablets in their original, closed container and protect them from excess heat, moisture, and direct light.
  • It is mandatory to keep the product from freezing.

Disposal Instructions

Unused or expired Ludeal must be disposed of safely. Do not discard the medicine via household trash or by flushing it down a drain unless local regulations explicitly permit it. Patients should consult a pharmacist or local waste disposal company for guidance on how to safely dispose of the tablets.

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

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