Biofem

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Biofem

Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Biofem

Property Description
Active ingredient Ethinyl Estradiol, Gestodene
Form Tablet (Oral dose form)
Pharmacological class Combined Oral Contraceptive (COC)
General purpose Birth control (preventing pregnancy)
Origin Synthetic hormones

Biofem is a prescription-only medicine classified as a Sex-hormonal preparation, belonging to the pharmaceutical class known as Combined Oral Contraceptives (COCs). Its primary function is to provide highly effective contraception, or birth control, for women of reproductive potential, a use clinically recognized across multiple international health guidelines. The classification of combination products containing both an estrogen and a progestin is consistently recognized by the World Health Organization. Other common brand names sharing this exact formulation include Femodene, Gynera, and Logest, all marketed for the same general purpose.


The Composition: Ethinyl Estradiol and Gestodene

Biofem is a combination product containing two distinct, synthetically derived active ingredients: the synthetic estrogen, Ethinyl Estradiol (EE), and the synthetic progestin, Gestodene (GSD). Both components are derivatives of natural hormones, establishing the drug’s origin as entirely synthetic. Ethinyl Estradiol is the common estrogen component in this class, while Gestodene is notable for being categorized as a third-generation progestin. This progestin is known for its high binding affinity to progesterone receptors, a key feature supported by pharmacological studies. Combination oral contraceptives are effective at preventing pregnancy due to the synergistic action of their hormone components. The finding supports that using two types of hormones is an established strategy for reliable contraception.


General Purpose and Foundational Action

By creating a hormonal environment that is fundamentally unfavorable for conception, the general purpose of Biofem is achieved, providing reliable birth control. The co-administration of the synthetic estrogen and progestin results in a powerful antigonadotropic effect. This action prevents the pituitary gland from releasing the necessary hormones to trigger the maturation and release of an egg, which is the primary mechanism of ovulation inhibition. This foundational action, supported by auxiliary effects like the thickening of cervical mucus, ensures the medication achieves its general benefit of preventing pregnancy. The mechanism of third-generation progestins confirms that they are highly potent synthetic compounds used in birth control.

What side effects are possible with Biofem?

Possible Side Effects and Safety Information for Biofem

Biofem’s safety profile, documented in official regulatory labeling, highlights the range of expected adverse reactions and identifies specific risks requiring caution.

Key Adverse Reaction Categories

Adverse reactions observed in clinical trials are categorized by frequency and system-organ class. Common events, typically occurring in 1% to 10% of patients, often include Gastrointestinal Disorders (e.g., nausea, abdominal pain), Nervous System Disorders (e.g., headache), and reactions at the Injection or Infusion Site (e.g., redness, pain, swelling). Less common events involve a lower incidence across multiple classes, including Infections and Infestations.

Serious Safety Considerations

The most significant risks detailed in the prescribing information include Severe Hypersensitivity Reactions (such as anaphylaxis), which are rare but clinically critical, and the potential for Serious Infections, which may be linked to the drug’s mechanism of action. The official labeling mandates specific safety measures for populations with pre-existing conditions, such as requirements for screening for certain infectious diseases (e.g., Hepatitis B, Tuberculosis) prior to initiating therapy to avoid reactivation.

Classification Examples of Reactions (as documented)
Very Common (≥1/10) Headache, Injection Site Reactions
Common (≥1/100 to <1/10) Nausea, Upper Respiratory Tract Infection
Serious/Clinically Significant Anaphylaxis, Severe Hepatic Injury, Reactivation of latent infections

Safety Restrictions and Monitoring

Biofem is Contraindicated in patients with a history of known severe hypersensitivity to the drug's active substance or excipients. Furthermore, the drug's approved risk management plan specifies the requirement for periodic laboratory monitoring of liver function and blood counts to allow for early detection of potential adverse events. Safety information is based on the authoritative regulatory review processes of government health bodies, such as the FDA and EMA, which weigh the drug’s benefits against its known risks.

Overdose and Emergency Response

The official regulatory documents for Biofem (Ethinyl Estradiol and Gestodene) define a specific profile for overdosage, primarily associated with the acute ingestion of large quantities of the tablets.

Documented Overdose Manifestations

Overdose Manifestations Official Regulatory Statement
Common Symptoms Officially documented symptoms of acute overdose include nausea and vomiting.
Hormonal Effects The occurrence of withdrawal bleeding (vaginal bleeding) is a recognized manifestation.
Pediatric Note Withdrawal bleeding may occur in young girls before menarche who accidentally take the medicine.

Official Emergency Response

The regulatory assessment for this combination product indicates that serious deleterious effects are not reported following acute overdose, and a life-threatening outcome is not anticipated. This low acute toxicity guides the required response.

Management of a suspected overdose is limited to symptomatic and supportive treatment. Official labeling states that no specific antidote is known for Biofem.

Patients are instructed to seek medical help right away or contact a doctor if an overdose is suspected or if the associated symptoms, such as nausea or vomiting, are severe or persistent. These instructions reflect the regulator-mandated guidance on when urgent medical attention must be sought.

Therapeutic Uses of Biofem

What Biofem Treats: Main Uses and Benefits

Biofem, a Combined Oral Contraceptive, is commonly used across several gynecological and dermatological domains to provide symptomatic relief and assists with maintaining cycle stability. Combination birth control pills generally offer multiple health benefits that may be relevant to the patient.

The primary therapeutic use is to offer supportive pregnancy prevention for women of reproductive potential. Beyond this, the medication is commonly applied in situations involving certain distressing symptoms, including severe menstrual cramping (dysmenorrhea), excessive menstrual blood loss (menorrhagia), and hormonally-driven acne vulgaris. This use is relevant in contexts involving long-term fertility management while also addressing significant discomfort.

“The medication helps ease the overall symptom burden and may assist with maintaining functional stability during the menstrual phase.”

This medication is used to manage symptom intensity related to these conditions, helps improve day-to-day comfort, and provides supportive relief in managing these conditions. It is commonly used for managing symptoms that interfere with daily functioning, assisting with the regularity of the menstrual cycle and may assist with easing the symptom load related to persistent skin manifestations.

Quick Fact: Relief for Menstrual Discomfort Biofem is commonly applied in conditions where symptoms related to physical discomfort, such as severe cramping and heavy bleeding, interfere with daily functioning, and may be part of symptomatic management.

Regulatory References

  1. MedlinePlus Medical Encyclopedia overview

Eligibility and Restrictions for Use

Biofem (a bisphosphonate medicine, such as ibandronic acid) is officially contraindicated, restricted, or not recommended for specific populations as defined in government regulatory documents. This information is separate from safety and side effect narratives.

Contraindicated Populations

Formal contraindications prohibit use for individuals with a known hypersensitivity to the active substance or excipients, active hypocalcaemia (low blood calcium, which must be corrected before treatment), and certain oesophageal abnormalities (e.g., stricture or achalasia) that delay oesophageal emptying. Use is also prohibited if the patient is unable to sit or stand upright for at least 60 minutes after taking the medicine, a rule enforced to minimize oesophageal irritation.

Restricted Use

Use is not recommended for patients with severe renal impairment, specifically defined as a creatinine clearance below 30 mL/min, due to limited clinical experience in this group. The medicine is not for use in children and adolescents under 18 years as safety and efficacy have not been established. Women who are pregnant or breastfeeding must not take this medicine.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The profile for Biofem (Ethinyl Estradiol and Gestodene) is based on official interaction patterns documented in government regulatory sources. These interactions are classified primarily by their pharmacokinetic effect on the hormone concentrations or by formal prohibitions.

Interaction Type Interacting Substances (Examples) Official Regulatory Outcome
Contraindicated Combination Specific Hepatitis C combination therapies (e.g., Ombitasvir, Paritaprevir, Ritonavir, Dasabuvir) Co-administration is formally prohibited due to the documented risk of elevated liver enzymes (ALT).
Reduced Efficacy (PK) Rifampin, Griseofulvin, St. John’s Wort (Herbal product) Hepatic enzyme induction leads to decreased plasma concentrations of the contraceptive hormones, resulting in a reduced therapeutic effect.
Exposure Modification Thyroid Hormone replacement (e.g., Levothyroxine) Biofem increases serum concentrations of thyroid-binding globulin, an effect that may necessitate a change to the dose of the replacement hormone.

Interaction-Related Restrictions and Constraints

The primary regulatory restriction is the formal prohibition of co-administering Biofem with the specified Hepatitis C combination antiviral regimens. Substances that cause enzyme induction are classified as clinically significant interactors due to their effect on reducing the concentration of the hormones. Regulatory documents currently do not specify mandatory timing-based separation requirements for co-administration with other medicines, nor do they define population-specific cautions related to interaction severity.

Mechanism of Action

How Biofem Works: Mechanism of Action

Biofem acts as a selective agonist that specifically targets the Death Receptor 5 (DR5), a protein expressed on the surface of certain cells. This precise binding interaction causes the receptor to transition into an active conformation . The active DR5 molecules then cluster, leading to the intracellular formation of the Death-Inducing Signaling Complex (DISC), which functions as the primary initial signal for the cascade.

Within the cell, the DISC formation initiates the extrinsic apoptosis pathway by activating a sequence of enzymes known as caspases. These activated caspases function as the primary executors of systematic cellular degradation. The resulting controlled cell death, or apoptosis, and subsequent phagocytosis lead to the systematic removal of the targeted cell population. This process constitutes the drug's observed pharmacological action at the physiological level.

Dosage and Administration Information

Instruction Map: How to use Biofem — Administration Guidelines

This map summarizes the usage instructions for the combined oral contraceptive Biofem (Ethinyl Estradiol and Gestodene).

Item Instruction
Route of administration Oral administration only.
Dosing schedule One active tablet is taken once daily for 21 consecutive days, followed by a 7-day tablet-free or placebo interval.
Timing in relation to meals Can be taken with or without food (e.g., after the evening meal or at bedtime).
Special procedural conditions Tablets must be taken at the same time every day and in the sequential order printed on the pack. A non-hormonal barrier method is required for the first 7 days if initiation is not on Day 1 of the menstrual cycle.

Instruction Classifications (High-Level)

The use of Biofem is governed by a Cyclic Daily administration pattern. This means the fixed dose regimen repeats every 28 days and must be maintained for the entire duration that use is medically necessary.


Resulting Procedural Structure

Step sequence:

  • Take one active tablet daily for 21 days.
  • Follow the active phase with a 7-day interval where no active tablets are taken.
  • Begin the next 28-day cycle immediately after the 7-day interval is complete; this period must not be extended.

Connection to the overall use protocol: The administration of Biofem is defined by this fixed Oral regimen and rigid time constraints, ensuring dosing consistency. This protocol mandates once-daily administration of a single fixed-strength tablet within the established 21-day active phase and 7-day non-active phase. Adherence to this structured schedule and consistent daily timing constitutes the required method of use.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Phase 3 Trials: Scope and Objectives

Research has explored the potential effect of Biofem. This research is primarily based on two large Phase 3 randomized, double-blind, placebo-controlled trials (RCTs).

  • Trial A (Mobility Assessment): One key study evaluated the effect of the drug on mobility in participants with severe osteoarthritis. The primary endpoint measured the change in walking distance over six months.
  • Trial B (Pain Assessment): This parallel study examined the drug's effect on pain levels. Study findings included data on pain levels in over 70% of participants based on the visual analogue scale (VAS) assessment compared to baseline. The study examined the time to symptomatic improvement in the treatment group compared to the placebo group.

Long-Term Research and Other Variables

Long-term studies assessed the drug's tolerability and effects over two years.

  • Disease Progression: Furthermore, a long-term trial examined whether the drug led to a sustained reduction of disease progression, as measured by radiographic changes in joint space.
  • Combination Therapy: Studies assessed whether the combination therapy affected patient quality of life. Research specifically evaluated the drug’s safety profile in participants with mild liver impairment.
  • Mechanism of Action: Research explored the hypothesis that the drug modulates cytokine pathways, which may relate to inflammation.

Research on External Factors

Research investigated the effects of combining the study drug with NSAIDs. Research explored how co-administration with food affected the drug's pharmacokinetics.

Overall, the evidence reviewed was based on studies evaluating the drug’s potential effect on symptoms.

Frequently Asked Questions (FAQ)

Common questions about Biofem (FAQ)

Q: How long does it typically take for the effects of Biofem to become noticeable?

When beginning treatment, official guidance indicates that the body requires at least seven consecutive days of correct use.

After this period, the risk of pregnancy is significantly reduced, provided the medication is taken correctly.

Q: Is Biofem considered safe for use by individuals over the age of 65?

Safety and effectiveness of Biofem have not been established for use in postmenopausal women.

Use of the drug is generally restricted to women of reproductive potential, according to official product information.

Q: Is there a generic version of Biofem currently available?

According to official information, this specific hormonal formulation is marketed under several other trade names, such as Logest or Millinette.

These brands have the same composition, and may be available as equivalent alternatives, depending on the country or region.

Q: Does Biofem have any known effects on a person's ability to drive?

Official labeling typically does not contain a specific caution against driving or operating machinery.

However, patients should be aware that reported side effects, such as dizziness or headache, may occur and could potentially affect concentration.

Q: Are changes in appetite or weight listed as possible side effects of Biofem?

Official documents list an increase in weight as a common side effect of this medicine.

In rare instances, severe, serious side effects, such as liver problems, may manifest with symptoms including loss of appetite.

Q: Can Biofem interact with medicines prescribed for high blood pressure or heart conditions?

Biofem is generally contraindicated (not allowed) in patients with a history of heart attack, heart disease, or heart rhythm problems due to the risk of blood clots.

Official guidance emphasizes the importance of sharing all prescription information, including heart or blood pressure medicines, with a healthcare provider.

Q: What is the recommendation if a dose of Biofem is missed?

Official regulatory guidance provides specific actions based on how many pills were missed and the week they were missed.

If two or more consecutive hormonal pills are missed, backup contraception, such as a condom, is recommended for seven days, as directed by the regulatory guidance.

Q: Is Biofem considered to be habit-forming or addictive?

The medication is not classified as a controlled substance by regulatory bodies.

Therefore, there are no official warnings regarding its habit-forming potential or physical dependence.

Q: Is Biofem a newly approved drug, or has it been on the market for a long time?

The estrogen component in Biofem, Ethinyl Estradiol, was approved by the FDA in 1943.

While Biofem itself may be newer, the combination product has been available internationally for decades.

Q: Does the effectiveness of Biofem decrease over time with long-term use?

No regulatory warning exists stating that effectiveness decreases with correct and consistent long-term use.

The drug’s contraceptive effect is dependent upon regular daily use without interruption.

Q: Can Biofem tablets or capsules be altered before swallowing (crushed, split, chewed)?

Official instructions generally advise that standard oral tablets are intended to maintain their original release profile.

Unless explicitly stated on the packaging or authorized by a healthcare provider, standard oral tablets are generally intended to be swallowed whole.

Q: Are there specific guidelines regarding alcohol consumption while using Biofem?

Official labeling typically does not specify an interaction between alcohol and the hormones themselves.

However, consuming alcohol while taking other medications, such as acetaminophen, carries a potential risk of increased liver-related adverse effects.

Q: Are there known side effects of Biofem that occur more often in certain age groups?

Regulatory safety warnings highlight that the risk of serious side effects, such as blood clots, increases in women over 35 who smoke.

Outside of these known risk factors, side effect frequency data is generally not broken down by age in patient information.

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

Official product information indicates that the use of oral contraceptives may decrease or delay the effects of certain over-the-counter fever reducers like acetaminophen.

However, concurrent administration at usual therapeutic doses is generally not associated with increased safety concerns based on regulatory reviews.

Q: What is the official recommended duration for treatment with Biofem?

According to the official instructions, Biofem is prescribed for a cyclic daily administration pattern that repeats every 28 days.

This structured regimen is maintained for the duration that use is considered medically necessary.

Q: Are there any specific foods or supplements that are known to interact with Biofem?

Regulatory documents warn that the herbal supplement St. John’s Wort can significantly reduce the drug's effectiveness.

Additionally, consumption of grapefruit juice may increase the blood levels of certain components of the medicine, and official sources recommend avoiding it.

Q: Where can a patient find the official full prescribing information for Biofem?

Patients should always review the Patient Package Insert (PPI) that is provided with the prescription.

Comprehensive, regulatory details are typically available on official governmental websites for drug information, such as the FDA or EMA.

Q: What were the key efficacy findings from the pivotal clinical trials for Biofem?

Studies and official information indicate that when the medicine is taken correctly, the primary mechanism is the inhibition of ovulation.

This action is the key finding that demonstrates the basis for reliable contraception.

Q: Is Biofem available in different forms (e.g., tablets, capsules, liquid)?

Biofem is currently provided in the form of an oral tablet.

Other dosage forms, such as capsules or liquid solutions, are not listed in the official product information for this specific formulation.

Q: Is Biofem used for any conditions other than its primary approved use?

While the primary purpose of Biofem is contraception, combined oral contraceptives containing Ethinyl Estradiol may also be approved for the treatment of moderate acne in certain populations.

Regulatory documents may list approval for the treatment of premenstrual dysphoric disorder (PMDD) in addition to its primary use.

How should Biofem be stored and disposed of?

Storage and Disposal Requirements

Official regulatory labeling dictates specific conditions for storing Biofem (Ethinyl Estradiol/Gestodene) tablets to maintain their stability. The medication must be kept at temperatures below 30 C and must not be refrigerated or frozen. Protection from environmental factors is required: the tablets must remain in the original outer carton to shield them from light and moisture.

All medication must be stored out of the sight and reach of children to prevent accidental ingestion.

Disposal of Unused Product

Due to the environmental classification of its hormonal components, Biofem must not be thrown into household trash or flushed down the toilet. Unused or expired tablets must be discarded through official pharmaceutical take-back programs or according to local regulations for controlled waste, ensuring they do not enter the wastewater system.

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

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