Кломид

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Кломид

Treatment option: Infertility

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 Кломид

What is Кломид?

Кломид (clomiphene citrate) is an orally administered non-steroidal medication classified as a selective estrogen receptor modulator (SERM). It is primarily utilized in reproductive medicine to address specific types of infertility by stimulating ovulation.

Mechanism of Action

The medication works by interacting with estrogen receptors in the brain, specifically within the hypothalamus and the pituitary gland. By binding to these receptors, clomiphene blocks the normal negative feedback of circulating estrogen. This action deceives the body into perceiving that estrogen levels are low.

In response to this perceived deficiency, the pituitary gland increases the production and secretion of two critical gonadotropins:

  • Follicle-Stimulating Hormone (FSH): This hormone stimulates the growth and development of ovarian follicles, which contain the eggs.
  • Luteinizing Hormone (LH): An increase in LH triggers the final maturation of the egg and its release from the follicle.

Clinical Purpose

The primary objective of using Кломид is to induce ovulation in individuals who do not ovulate spontaneously or to regularize ovulation in those with irregular cycles. It is most commonly used in cases where infertility is linked to ovulatory dysfunction, such as polycystic ovary syndrome (PCOS). By enhancing the hormonal signals necessary for follicular development, the medication increases the statistical probability of conception.

What side effects are possible with Кломид?

Possible Side Effects and Safety Information

The safety profile of Clomifene Citrate is officially classified by the frequency and physiological system affected, based on regulatory documentation from authorities such as the FDA and EMA. This classification helps to formally structure the understanding of its possible adverse reactions.

Frequency-Classified Adverse Reactions

The following are officially documented adverse reactions, categorized by their approximate frequency of occurrence:

  • Very Common (affecting ge 1 in 10 patients): Hot flushes (vasomotor symptoms).
  • Common (affecting ge 1 in 100 patients): Abdominal discomfort or pain, nausea, vomiting, headache, ovarian enlargement, and various visual symptoms (such as blurred vision, scotomata, or flashes).
  • Uncommon (affecting ge 1 in 1,000 patients): Dizziness, nervousness, insomnia, depression, and reversible alopecia.

System-Organ Class and Serious Reactions

Adverse effects are grouped across several systems, including the Reproductive system (ovarian enlargement), Gastrointestinal disorders, Nervous system disorders, and Eye disorders. Official regulatory documents highlight specific serious adverse reactions, including the risk of Ovarian Hyperstimulation Syndrome (OHSS) and the potential for persistent, serious visual impairment, which is usually dose-related but has documented cases of persistence.

Safety Restrictions and Patterns

The official label mandates that Clomifene Citrate is contraindicated in women who are pregnant, and those with pre-existing conditions such as active liver disease or unexplained abnormal uterine bleeding. These restrictions are in place to define the strict boundaries of safe use, while safety notes confirm that the risk of ovarian enlargement may be linked to higher doses.

Overdose and Emergency Response

Overdose and When to Seek Help

The information below is based strictly on descriptions of Clomifene Citrate overdose as documented in governmental regulatory sources.

Officially documented manifestations expected in cases of overdosage or high cumulative exposure include visual disturbances (such as scotomata or blurring), vasomotor flushes, nausea, vomiting, and ovarian enlargement accompanied by pelvic or abdominal pain.

Immediate Actions and Severe Outcomes

Urgent medical attention must be sought immediately in the event of a known or suspected overdose. Immediate medical care is also required if severe symptoms develop that may indicate Ovarian Hyperstimulation Syndrome (OHSS), a potentially life-threatening complication documented in regulatory labeling. Signs requiring emergency services include severe pelvic pain, rapid weight gain, trouble breathing, or decreased urination.

If any unusual visual symptoms occur, the medication must be discontinued immediately, and a formal ophthalmologic evaluation should be sought, as regulatory documents note the potential for visual changes to be prolonged or irreversible with increased exposure. The official management protocol relies entirely on symptomatic and supportive measures, as no specific antidote is known for Clomifene Citrate overdose.

Therapeutic Uses of Кломид

What Кломид treats: main uses and benefits

Кломид (clomiphene citrate) is a prescription therapy primarily used for women who are seeking pregnancy but face infertility due to ovulatory dysfunction. The medication's main role is to stimulate the ovaries to encourage the release of a mature egg, a process known as ovulation induction. This action helps manage the core issue in cases where a woman is not ovulating regularly or at all.

Clinical scenarios of use commonly involve specific types of ovulatory failure, including anovulation, oligoovulation, and certain cases of polycystic ovary syndrome (PCOS). The patient benefit is the functional support provided to the reproductive system, which may increase the opportunity for conception during a treatment cycle by restoring a more predictable rhythm.


Quick Fact: Support for Irregular Cycles

The medication is a standard therapeutic option to help manage the difficulty in conceiving caused by unpredictable or absent ovulation.

Eligibility and Restrictions for Use

The eligibility for Кломид (Clomifene Citrate) use is defined strictly by regulatory labeling and is intended for a narrow patient group. The medication is indicated only for adult women seeking pregnancy due to ovulatory dysfunction (including select cases of Polycystic Ovary Syndrome).

Contraindications define who must not use the medicine. These include: Pregnancy; known Liver Disease or history of dysfunction; Abnormal Uterine Bleeding of undetermined cause; an Ovarian Cyst or enlargement not related to PCOS; uncontrolled Thyroid or Adrenal Dysfunction; and the presence of an Organic Intracranial Lesion, such as a pituitary tumor.

Eligibility-Related Restrictions

Classification Status Rationale (Official Documentation)
Pediatric Use Not Established Safety and effectiveness have not been demonstrated in children.
Geriatric Use Not Indicated The medication is not intended for use in older adults.
Lactation Not Recommended May pass into breast milk; may decrease milk production.
Visual Symptoms Discontinue Use Use must cease if blurred vision or other visual disturbances occur.

Use is also not indicated for patients with primary pituitary or ovarian failure, as the mechanism requires an intact hormonal axis.

What should I know about interactions with other medicines?

The official regulatory profile for Clomifene Citrate (Кломид) is notable for its highly specific and limited set of documented interactions. The most important consideration, as stated in government prescribing information, involves co-administration with other medicinal products intended for ovulation induction.

Official Interaction Statements

Interaction Category Documented Interaction Outcome
Pharmacodynamic Risk Additive risk of Ovarian Hyperstimulation Syndrome (OHSS) with Gonadotropins.
Contraindicated Combinations None formally documented solely due to interaction mechanism.
Pharmacokinetic Interactions None documented (No specific CYP/transporter changes requiring restriction).

The primary concern documented by regulatory agencies is a pharmacodynamic interaction with substances such as Gonadotropins. The co-administration of Clomifene Citrate with these other agents is officially recognized to carry an additive risk of Ovarian Hyperstimulation Syndrome (OHSS). This represents the chief interaction-related constraint within the official labeling.

Regulatory labels are explicit in the absence of restrictions across most other categories. Official documents do not list any specific medicinal products as formally contraindicated solely due to a drug-drug interaction mechanism. Furthermore, no mandatory timing-separation rules are specified for co-administered products, and official sources do not define significant pharmacokinetic interactions (e.g., CYP or transporter-mediated changes in drug exposure) that require restriction of co-administered medicines. Similarly, no specific interaction warnings are documented in regulatory sources regarding the co-ingestion of food, alcohol, or herbal products.

Mechanism of Action

Кломид (Clomiphene Citrate) operates as a Selective Estrogen Receptor Modulator (SERM), primarily affecting the central control systems of reproductive endocrinology. Its mechanism begins with competitive antagonism of estrogen receptors located in the hypothalamus and pituitary gland. By occupying these receptor sites, the drug prevents endogenous estrogen from binding, thereby blocking the brain's natural negative feedback signal. This perceived lack of estrogen prompts the hypothalamus to increase the pulsatile release of Gonadotropin-Releasing Hormone (GnRH). This increase then stimulates the pituitary gland to secrete elevated levels of the gonadotropins, Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The resulting systemic elevation of FSH and LH acts on the ovaries, promoting the growth and maturation of ovarian follicles. The subsequent rise in LH levels is the physiological signal necessary for the final release of the mature oocyte.

Dosage and Administration Information

How Clomiphene Citrate (Кломид) is Used: Official Administration Guidelines

Clomiphene Citrate is administered as a short-term, cyclic oral therapy intended for use under specialized medical supervision. The official usage instructions establish a schedule defining the route, dose, and frequency of administration.


Administration Scope

Feature Instruction/Entity
Route of Administration Oral (swallowed tablet)
Dosing Schedule Initial Course: 50 mg daily for 5 days. Second Course: 100 mg daily for 5 days, given only if the initial 50 mg course fails to induce ovulation.
Frequency Pattern Once daily, as a single daily dose.
Start Timing On or about the 5th day of the menstrual cycle, or at any time if spontaneous bleeding is absent.

Procedural Constraints and Limits

The administration of Clomiphene is tied to specific procedural requirements. The daily dose, even when 100 mg, is administered entirely as a single daily dose and should not be split.

Procedural Constraints: A gynecological examination is required before starting the first course and prior to starting any subsequent course. If ovarian enlargement occurs, the next course must be delayed until the ovaries return to pretreatment size, and the following dose or duration must be reduced.

Maximum Use: Treatment is structured to be brief and intermittent. Clomiphene Citrate is not recommended for long-term use and should not exceed a total of approximately six cycles.

Recent Clinical Evidence

Research evidence / Overview of studies for Кломид

Research Evidence for Ovulatory Dysfunction

The most substantial research for Clomifene Citrate was evaluated in women facing conditions related to irregular or absent ovulation who wish to become pregnant. This evidence is largely built upon Randomized Controlled Trials (RCTs) and comprehensive Systematic Reviews where Clomifene was evaluated in studies including placebo or other compounds, as part of the study design. Studies monitored primary outcomes related to the body's reproductive processes. Specifically, research examined primary outcomes such as the ovulation rate (a measured physiological change), and subsequently monitored measured changes in the pregnancy rate and the number of live births.

Research describes patterns where a measured shift in parameters related to ovulation was observed in women with anovulatory infertility, including those with Polycystic Ovary Syndrome (PCOS). In some studies, the observed rate of ovulation often exceeded the subsequent rate of pregnancy or live birth. Findings help contextualize that factors beyond ovulation itself may affect subsequently measured outcomes.

Studies Examining Outcomes Beyond Ovulation

Beyond measuring the release of an egg, studies explored the relationship between the ovulatory response and subsequently measured pregnancy rate. For instance, studies explored the drug's effect on endometrial thickness and cervical mucus, where anti-estrogenic effects were observed in some studies. Studies contribute to the understanding of measured changes in the overall environment—and what remains uncertain. Research provides context but not individual predictions, as the final pregnancy rates and live birth rates measured in these trials varied across studies.

Research Focus on Male Infertility Parameters

Clomifene Citrate was also studied for its use in infertile men. The evidence in this area is derived from Systematic Reviews and smaller-scale Randomized Controlled Trials. Studies examined changes in outcomes related to physiological strain or stress by monitoring male hormonal parameters and semen parameters. Research describes patterns where measured increases in certain hormone and semen parameter levels were observed in the studied populations. However, certainty remains low for this application, and large trials tracking final live birth outcomes data are still emerging.

Key Studies & References

  1. The effects of clomiphene citrate on the endometrium and uterine blood flow (A review of anti-estrogenic effects)

Frequently Asked Questions (FAQ)

Common questions about Кломид (FAQ)


Q: Does the research evidence confirm the long-term safety of the medication?

A: Official regulatory guidelines generally restrict the use of Clomiphene Citrate to approximately six cycles of treatment. This limit is based on safety considerations, including a reported potential increase in the risk of ovarian cancer with use beyond this duration. Official documents indicate that use should not exceed the total number of cycles determined by a healthcare professional.


Q: What is the 'success rate' of Кломид as reported in published clinical trials?

A: Clinical trial data, which is reviewed by regulatory bodies, indicate that Clomiphene Citrate was associated with a measurable ovulatory response in approximately 74% of patients studied. The subsequent overall pregnancy rate reported across these same patient groups was approximately 31%. These figures represent average outcomes from studies and not an individual prediction or guarantee.


Q: What should I know before starting a course of Кломид?

A: Regulatory guidance states that the patient must be screened for pregnancy, active liver disease, and certain types of ovarian cysts prior to treatment, as the drug is contraindicated in these conditions. Regulatory documents also state that a gynecological examination is a necessary procedure before the start of each course of therapy.


Q: Are the side effects of Кломид reversible or permanent after stopping the drug?

A: Official information suggests that the majority of common side effects typically resolve once treatment is stopped. However, regulatory safety documents note that while some effects, like hair loss (alopecia), are described as reversible, other serious effects like visual impairment have documented cases of persistence. The label instructs that the medication must be discontinued immediately if a patient experiences any visual disturbances.


Q: Does continuous use of Кломид lead to reduced effectiveness over time?

A: The limit on the number of treatment cycles is mainly for patient safety, as regulatory authorities caution against long-term use. Separately, studies have shown that the drug’s mechanism of action can cause anti-estrogenic effects that may result in a thinner uterine lining, which may be associated with a reduced likelihood of conception in later cycles due to observed physiological changes.


Q: How quickly do the primary effects of Кломид typically start?

A: The primary physiological change intended by the medication is the release of an egg, known as ovulation. Based on clinical monitoring, ovulation typically occurs between 6 to 12 days after a patient has completed the standard 5-day course of therapy.


Q: How long does it take for Кломид to be cleared from the body?

A: The drug’s elimination half-life, which is the time it takes for the drug concentration to drop by half, is reported to be between 4 and 7 days. While the active effect is shorter, studies indicate that trace amounts of its inactive breakdown products may remain detectable in the body for up to six weeks after the last dose.


Q: Does taking Кломид cause weight gain?

A: While weight gain is not classified as a common adverse event, it has been reported in postmarketing surveillance and regulatory adverse event reports. This indicates it is a known effect, though generally less frequent than the common side effects listed in the official safety profile.


Q: What happens if a person misses a dose during the prescribed treatment window?

A: Official guidance states that if a dose is missed, a patient is instructed to take it as soon as they remember. If the time for the next scheduled dose is near, the patient's guidance states that they should seek specific instructions from their prescribing physician rather than taking a double dose to catch up.


Q: Is Кломид available without a prescription?

A: Clomiphene Citrate is a potent drug that requires careful medical supervision and monitoring. Consequently, it is classified as a prescription-only medication by regulatory authorities and is not available for purchase over-the-counter (OTC).


Q: Does the medication carry a 'Black Box Warning' in the US or similar serious warning in other countries?

A: Regulatory documents indicate that Clomiphene Citrate does not carry an FDA Black Box Warning, which is the most stringent type of warning in the United States. However, the official label does contain serious, explicit warnings regarding the risk of developing Ovarian Hyperstimulation Syndrome (OHSS) and the potential for visual disturbances.


Q: What kind of eye exams are recommended for patients taking Кломид?

A: The official prescribing information does not mandate specific routine eye exams while taking the medication. However, due to the risk of serious visual changes, the label instructs that the medication should be stopped immediately if a patient experiences any visual symptoms, such as blurred vision, spots, or flashes.


Q: Are there any known occupational or driving safety concerns related to the side effects of Кломид?

A: Due to the possibility of visual symptoms and dizziness, official warnings advise caution, stating that operating a car or heavy machinery should be avoided until the patient knows how the medication affects them. This warning is based on the risk of impairment related to potential visual disturbances.


Q: Does the official safety data mention any impact on bone density?

A: The official regulatory safety profile and list of adverse reactions do not commonly list a negative impact on bone density (bone mass) as a frequent or serious side effect. The drug is classified as a Selective Estrogen Receptor Modulator (SERM), a class of drugs that can have complex, varying effects on estrogen receptors in different tissues, including bone.

How should Кломид be stored and disposed of?

How to Store and Dispose of Clomid (Clomifene Citrate)

Clomifene Citrate tablets must be stored according to official regulatory requirements to maintain product quality and safety.

Storage Conditions

Requirement Specification
Temperature Controlled Room Temperature: 15 C to 30 C (59 F to 86 F)
Protection Protect from excessive heat, light, and humidity
Container Store in the original closed container

All medication must be stored out of the reach of children.

Disposal Instructions

Unused or expired Clomid should be disposed of using a local authorized drug take-back program. If a take-back program is unavailable, the medicine may be mixed with an undesirable substance (such as cat litter or used coffee grounds) and placed into a sealed container before disposal in the household trash. Clomifene Citrate is not on the list of medicines recommended for flushing down the toilet.

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

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