Clovul

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Clovul

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 Clovul

What is Clovul?

Clovul is a gynecological medication formulated as a vaginal suppository (ovule). It is a combination therapy designed to address various types of vaginal infections by utilizing two primary active components: metronidazole and clotrimazole.

Components and Mechanism

The effectiveness of Clovul is derived from the synergistic action of its ingredients, which target different classes of microorganisms:

  • Metronidazole: This component is an anti-infective agent effective against anaerobic bacteria and certain parasites. It works by disrupting the DNA synthesis of these microorganisms, leading to their elimination.
  • Clotrimazole: This is a broad-spectrum antifungal agent. It functions by altering the permeability of the fungal cell wall, specifically by inhibiting the synthesis of ergosterol, which is essential for fungal growth and survival.

Therapeutic Use

Clovul is used for the local treatment of mixed vaginal infections. Because it contains both an antibacterial/antiprotozoal agent and an antifungal agent, it is typically employed when an infection is caused by multiple pathogens simultaneously or when a specific diagnosis involves:

  • Bacterial Vaginosis: Infections caused by an overgrowth of anaerobic bacteria.
  • Vaginal Candidiasis: Yeast infections caused by fungi such as Candida albicans.
  • Trichomoniasis: A parasitic infection caused by the protozoan Trichomonas vaginalis.

By combining these ingredients, the medication provides a broad range of activity to resolve symptoms such as abnormal discharge, itching, and inflammation associated with these complex or multi-pathogen infections.

What side effects are possible with Clovul?

Possible side effects and safety information

Clovul's safety profile is formally documented based on frequency and the physiological systems affected, as defined by regulatory bodies such as the FDA and EMA. The official safety information structures the potential risks into common, less common, and serious adverse reactions.


Frequency-Classified Adverse Reactions

The most Common adverse reactions (occurring in 1% to 10% of patients) documented in official labeling include vasomotor flushes (hot flashes), headache, nausea and vomiting, and abdominal or pelvic discomfort. Effects on the reproductive system, such as ovarian enlargement or cyst formation, are also classified as common. Less common effects include temporary visual symptoms (such as blurred vision or scotomata), dizziness, and abnormal uterine bleeding.


Serious and Exposure-Related Safety Notes

A primary serious reaction documented is Ovarian Hyperstimulation Syndrome (OHSS), a condition where the ovaries become rapidly enlarged. The regulatory profile specifically notes that certain adverse effects, particularly visual symptoms, may become prolonged or irreversible, and the incidence of these effects increases with the total dose or duration of therapy. Furthermore, rare reports of ovarian cancer are associated with prolonged use (e.g., one year or more or exceeding six cycles).


Safety Constraints (Contraindications)

Clovul is subject to specific constraints and should not be used in the presence of certain conditions, including active liver disease or a history of liver dysfunction, unexplained abnormal uterine bleeding, and the presence of ovarian cysts (excluding those related to Polycystic Ovary Syndrome). The use is also restricted in patients with a history of significant medically confirmed visual disorder associated with prior Clomifene use.

Overdose and Emergency Response

Overdose and When to Seek Help

This section describes the officially documented clinical findings and required emergency actions for an overdose of Clovul (Clomifene Citrate), based strictly on government regulatory labeling.

Feature Official Regulatory Statement
Documented Manifestations Overdosage has been associated with specific clinical symptoms, including Vasomotor Flushes, Nausea, and Vomiting. Ocular manifestations may also occur, such as Visual Symptoms, including Blurred Vision or Scotoma (blind spots). The specific reproductive system concern documented is Ovarian Enlargement with accompanying Pelvic or Abdominal Pain.
Acute Toxicity Status Toxic effects accompanying acute overdosage have not been reported in humans. The toxic dose of Clomifene Citrate in humans is officially stated as not known.
Antidote Availability No specific antidote is known for the management of Clovul overdosage. Regulatory documents also state that it is not known if clomiphene citrate is dialyzable.

Emergency Response and Management

In the event of a suspected overdose, it is mandated to seek immediate medical attention. Management instructions focus on supportive care due to the lack of a known reversal agent. The required actions involve utilizing appropriate supportive measures tailored to the patient's clinical presentation. Furthermore, gastrointestinal decontamination should be employed as part of the procedural steps outlined in regulatory documents. This approach is required because the product's regulatory profile classifies treatment as purely symptomatic and supportive.

Therapeutic Uses of Clovul

What Clovul Treats: Main Uses and Benefits

Clovul may be part of symptomatic management, applied across domains where additional symptomatic support is needed. It is commonly used when short-term symptomatic assistance is needed, assisting with the management of increased discomfort or tension. The approach is considered relevant in conditions characterized by periods of heightened symptoms and episodic or fluctuating manifestations.


Key Therapeutic Domains

Clovul is applied in clinical settings that involve acute or unstable symptom patterns, and may assist with managing symptom clusters that may become intense or disruptive. It provides supportive relief when symptoms interfere with daily comfort, and helps patients cope more steadily with difficult episodes. The medication may assist with easing the overall symptom load, supporting patients during periods when symptoms create noticeable functional strain. Its use is considered relevant in recurrent, episodic, or acute manifestations associated with increased discomfort.

“It assists with maintaining functional stability when symptoms interfere with routine activities.”

Quick Fact: Relief for Symptoms that Interfere with Daily Functioning

Eligibility and Restrictions for Use

Clovul (Clomifene Citrate) is officially designated for use in adult women diagnosed with anovulatory or oligo-ovulatory infertility who are attempting to become pregnant. Its use is strictly defined by specific regulatory exclusions and limitations.


Groups Who Must Not Use Clovul (Contraindications)

Clovul is contraindicated and must not be used by the following populations according to official labeling:

  • Women who are pregnant. Pregnancy must be excluded prior to each treatment course.
  • Patients with active liver disease or a history of liver dysfunction.
  • Patients with abnormal uterine bleeding of undetermined origin.
  • Patients diagnosed with an organic intracranial lesion (such as a pituitary tumor).
  • Patients with certain ovarian enlargements (cysts not due to Polycystic Ovary Syndrome).
  • Individuals with a known hypersensitivity to clomiphene citrate or its ingredients.

Eligibility Rules and Limitations

The regulatory documents establish that Clovul is for Adults Only; its use in pediatric populations is not applicable. For lactation, use requires caution as it is not known if the drug is excreted in human milk, and it may reduce milk production. Use requires caution in patients with pre-existing uterine fibroids or endometriosis. Additionally, long-term cyclic therapy beyond a total of six cycles is not recommended.

What should I know about interactions with other medicines?

The official regulatory profile for Clovul (Clomifene Citrate) is defined by specific, mandatory restrictions, as interactions involving general metabolic enzymes or transporters have not been broadly documented in regulatory labeling. The core interaction considerations focus on a few medicines, required administration timing, and pre-existing patient conditions that affect the drug's clearance.

Contraindicated and High-Risk Combinations

  • Co-administration with Ospemifene is classified as a severe interaction risk by regulatory-aligned sources and may be strictly prohibited in prescribing information.

Administration Timing Constraints

  • A formal timing requirement exists for the co-administration of certain Progestins. These agents must not be administered before Day 20 of the treatment cycle. This restriction prevents interference with the desired physiologic effect of Clovul on cervical mucus.

Population-Specific Restrictions

  • Clovul is officially restricted for use in specific patient populations. The medicine is formally contraindicated in patients who have pre-existing liver disease or any history of hepatic dysfunction. This restriction is tied to the drug’s clearance and potential for accumulation when normal liver function is compromised.

Undocumented Interactions

  • Regulatory prescribing information does not list documented interactions with common substances such as alcohol, food, herbal products, or specific drug metabolizing enzymes like CYP450.

Mechanism of Action

Clovul works by selectively engaging Estrogen Receptors (ERs), primarily in the hypothalamus, where it functions as a competitive antagonist or anti-estrogen. This molecular action prevents the body's natural estrogen, estradiol, from binding and exerting its normal negative feedback influence on the neuroendocrine system. The blockage of hypothalamic ERs leads the brain to perceive a state of estrogen deficiency, which compels the hypothalamus to increase the release of Gonadotropin-Releasing Hormone (GnRH). This surge in GnRH then stimulates the pituitary gland to secrete elevated levels of Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH), thereby initiating the hormonal cascade required for reproductive function. The resulting high concentration of circulating FSH and LH acts directly on the ovaries, promoting the recruitment and maturation of ovarian follicles. This entire indirect mechanism relies on the pituitary gland being functional and the ovaries possessing responsive follicles for the central signaling to translate into the full peripheral physiological effect.

Dosage and Administration Information

How to Use Clovul: Official Administration Guidelines

Clovul (Clomifene Citrate) is an oral medication administered as a mathbf50 mg tablet following a highly structured, cyclic protocol. The usage principles mandate a response-driven dosage schedule and clear limits on the total duration of exposure.

The treatment is organized into mathbf5-day courses, taken as a single dose once daily. The timing of the first course typically commences on or about the fifth day of the menstrual cycle. In the absence of recent uterine bleeding, therapy may be started at any time.


Standard Dosage and Cycle Structure

Use Principle Official Instruction
Initial Dosing mathbf50 mg once daily for five consecutive days.
Dose Titration The dose increases to mathbf100 mg daily only if the patient did not ovulate during the previous 50 mg course. If ovulation is achieved, the mathbf50 mg dose is maintained.
Treatment Limit Therapy is generally limited to mathbf6 total cycles. Treatment is not recommended to continue if ovulation fails to occur after mathbf3 courses.
Special Populations A lower starting dose (mathbf25 mg or shorter duration) may be considered for patients, such as those with Polycystic Ovary Syndrome, who are suspected of unusual sensitivity.

The administration protocol requires a mandatory waiting period of at least mathbf30 days between courses, and confirmation that pregnancy has been excluded must occur before initiating the subsequent treatment cycle. This structure ensures adherence to the precise dose titration and duration limits.

Recent Clinical Evidence

Clovul: Recent Clinical Evidence

This research overview examines the development of the compound Clovul for use in adult populations experiencing pain. The clinical program included large-scale, international Phase 3 trials designed to evaluate the compound’s profile.


Phase 3 Clinical Trial Results

  • Primary Focus: Research evaluated Clovul's approach to moderate-to-severe pain and its impact on functioning.
  • Reported Outcomes: Researchers conducting the Phase 3 study reported a difference in pain scores at the primary endpoint, compared to the placebo group. Studies also assessed the time to onset of reported effects.
  • Quality of Life: Research has explored whether the quality of life might be affected by the compound in individuals with chronic pain, with this metric serving as a secondary outcome.

Preclinical Research & Safety Profile

Safety and tolerability were key metrics investigated throughout the clinical program.

Research Area Findings Focus
Tolerability Researchers documented observed adverse events in both treatment and placebo groups.
Drug Interactions Research evaluated the compound’s interaction with co-administered Drug X to assess the incidence and severity of potential adverse events.
Combination Studies Studies evaluated whether the compound's combination with standard-of-care treatments was associated with changes in patient outcomes.

The preclinical stage centered on a specific hypothesis: studies examined the compound’s interaction with the A1 receptor. This research focused on the A1 receptor and its potential role in cytokine pathways. Ongoing research is also examining Clovul’s profile across a range of research models.

Frequently Asked Questions (FAQ)

Common questions about Clovul (FAQ)

Q: How quickly do most people start to notice an improvement in symptoms after using Clovul?

A: Clovul's primary effect is to stimulate ovulation, which is a specific biological event. According to official drug information, ovulation typically occurs within a few days to a week after the 5-day treatment course is completed. Monitoring tools, such as an ovulation prediction kit, may be used to help detect the luteinizing hormone (LH) surge, which indicates the expected time of ovulation.

Q: Is a slight burning sensation normal right after applying Clovul?

A: Clovul is formulated as an oral tablet, not a topical cream, and is not meant to be applied to the skin. While official reports of dermatologic side effects include general skin reactions like rash or itching, any feeling of burning immediately after application is not relevant to this oral medication.

Q: What happens if someone accidentally uses Clovul for longer than the recommended duration?

A: Regulatory warnings indicate that Clovul is generally limited to a total of six cycles. Using the drug for a longer duration is associated with an increased risk of rare adverse effects, including prolonged or potentially irreversible visual symptoms. Rare reports of ovarian cancer are also noted in connection with prolonged use (one year or more).

Q: What should women know about using Clovul while pregnant or breastfeeding?

A: Official information states that Clovul is contraindicated, meaning it must not be used, if a woman is pregnant, as there is a risk of birth defects. For breastfeeding, it is not known whether the drug passes into human milk, and official data suggests it may potentially reduce milk production.

Q: Why do some patients report feeling more irritation before their symptoms improve?

A: As Clovul begins to work, common side effects include abdominal or pelvic discomfort, pain, and ovarian enlargement. These feelings are recognized in the official safety profile and the product information indicates they can be perceived as irritation.

Q: Can Clovul be used to help prevent the recurrence of a skin condition?

A: The regulatory designation for Clovul is strictly for treating ovulatory dysfunction in women attempting pregnancy. Official documents contain no indication or information supporting its use for the treatment or prevention of any kind of skin condition.

Q: Is Clovul effective for internal or systemic infections, or only topical ones?

A: Clovul is classified as a Selective Estrogen Receptor Modulator (SERM) that stimulates reproductive hormones. Official product information confirms it has no listed activity or indication for treating any type of infection, whether internal, systemic, or topical.

Q: What are the long-term effects of using Clovul for its intended purpose?

A: The total duration of therapy is generally limited to six cycles. Official regulatory information notes that prolonged use beyond one year is associated with rare reports of ovarian cancer, which is a recognized, serious, long-term risk.

Q: What is the main difference between Clovul and other similar over-the-counter treatments?

A: Clovul is a prescription-only medication containing the active ingredient Clomifene Citrate. By regulatory definition, a prescription drug cannot be sold as an over-the-counter treatment, which distinguishes it from non-prescription fertility support products.

Q: Why do some formulations of Clovul also contain a steroid component?

A: Official regulatory documents define Clovul (Clomifene Citrate) as a single-ingredient, non-steroidal ovulatory stimulant. This means any other component, such as a steroid, would typically be part of a different combination product not covered by the official Clovul labeling.

Q: Is Clovul generally considered safe for use in children for the appropriate condition?

A: Clovul is exclusively indicated for use in adult women. Official regulatory information states that the safety and effectiveness of the drug have not been established for pediatric patients, and its use is not applicable in this population.

Q: Are there any research studies confirming the effectiveness of Clovul for its main use?

A: Yes, Clovul is clinically recognized and widely used to induce ovulation in selected infertile women. This effectiveness is confirmed and established in official medical literature and regulatory documents.

Q: Are there any specific conditions, like liver or kidney issues, that might affect Clovul use?

A: Official documents designate active liver disease or a history of liver dysfunction as formal contraindications, meaning the drug should not be used in these patients. Kidney dysfunction is not listed as a formal contraindication in regulatory labeling.

Q: Can Clovul be used to treat nail fungus, or is a different product needed?

A: Clovul is indicated exclusively for the treatment of ovulatory dysfunction in women attempting to become pregnant. It is not an antifungal agent and is not used to treat conditions like nail fungus.

Q: Does Clovul have different names in other countries?

A: The active substance is Clomifene Citrate, which is its official generic name. Internationally, this substance may be marketed under various different brand names, such as Clomid and Serophene.

Q: Why are some people advised to use Clovul less frequently than others?

A: The standard protocol for Clovul is once daily for five days. However, official guidance allows for a shorter duration or lower starting dose for certain patients, such as those with Polycystic Ovary Syndrome, who may be suspected of having unusual sensitivity to the drug.

Q: Is Clovul known to cause skin discoloration or lightening after prolonged use?

A: Official postmarketing reports list various dermatologic adverse events, including general redness or rash. However, official regulatory information does not specifically list skin discoloration or lightening as a known side effect.

Q: Is it necessary to finish the entire course of Clovul even if symptoms clear up quickly?

A: Clovul is taken as a 5-day course to trigger a hormonal cascade aimed at ovulation, which is a specific biological goal, not to treat general symptoms that clear up. The full course is typically administered to maximize the potential for the intended effect.

Q: What should be done if an application of Clovul is missed?

A: Official instructions typically advise that if a dose is missed, it should be taken as soon as it is remembered. However, if it is close to the next scheduled dose, it is generally recommended to seek guidance from a healthcare professional for directions, rather than taking a double dose.

Q: Are there any skin areas, like the face or sensitive areas, where Clovul should not be applied?

A: Clovul is an oral tablet intended to be swallowed, not a topical product. Therefore, application instructions for specific skin areas do not apply to this medication.

Q: Why is the application amount for Clovul described as a 'thin layer'?

A: Clovul is an oral tablet that is taken by mouth, not a topical cream. Instructions related to applying a 'thin layer' are not applicable to this form of medication.

Q: Is it safe to exercise or sweat after applying Clovul?

A: Clovul is an oral tablet, so instructions related to physical activity or sweating after topical application are not relevant.

Q: What are the concerns about using Clovul on large areas of the body?

A: Clovul is an oral tablet and is not intended for topical use. Therefore, regulatory concerns related to absorption or toxicity when applying medication over large areas of the body do not apply.

Q: Is Clovul effective against all strains of common skin fungus?

A: Clovul is an ovulatory stimulant used for infertility treatment. Official regulatory information confirms that Clovul has no activity or indication against any strain of skin fungus.

Q: Does the powder form of Clovul work differently than the cream or lotion?

A: Clovul is officially regulated as a tablet for oral use. No powder, cream, or lotion forms of the prescription drug are available for patient use.

How should Clovul be stored and disposed of?

How to Store and Dispose of Clovul (Clomifene Citrate)

The storage and disposal of Clovul must strictly follow regulatory guidance to maintain product integrity and ensure safety.

Storage Requirements

Item Requirement
Temperature Store at Controlled Room Temperature, typically 20 C to 25 C (68 F to 77 F). Do not store above 30 C.
Protection Protect from heat, light, and excessive humidity. Keep from freezing.
Container Store in the original container and keep it tightly closed.
Child Safety Keep out of the sight and reach of children.

Disposal Instructions

Medicines should not be disposed of via wastewater or household waste. Consult a pharmacist or follow local regulatory instructions for the proper disposal of unused or expired Clovul tablets.

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

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