Clotrix

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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 Clotrix

What is Clotrix? (Clotrimazol Formulation)

This introductory section establishes the essential identity, composition, classification, and general purpose of Clotrix, which contains the active ingredient Clotrimazol, strictly excluding clinical usage details and safety warnings.

Property Description
Active ingredient Clotrimazol (Clotrimazole)
Form Cream, solution, vaginal tablet, oral lozenge (troche)
Pharmacological class Azole Antifungal (Imidazole derivative)
Common use Clearing up superficial fungal infections
Origin Synthetic compound

What Type of Medicine is Clotrix and What is its Composition?

Clotrix, when containing the active constituent Clotrimazol (INN), is a pharmaceutical preparation defined as a synthetic antifungal agent belonging to the azole derivative class. It is used across various patient populations, as a choice for local antimycotic therapy.

The medicine is commonly a single active ingredient product (monopreparation) intended for local treatment via various dosage forms, including topical cream, topical solution, vaginal tablet, and the oral lozenge (troche). The route of administration is local, applied directly to the affected site, whether dermal, vaginal, or oromucosal, depending on the specific form chosen for the fungal outbreak, such as athlete's foot. The minimal systemic absorption from these topical forms is a key property of the drug.


What is the General Purpose of Clotrimazol?

The general purpose of Clotrimazol is to function as an effective broad-spectrum antimycotic agent that helps the body overcome surface fungal outbreaks caused by yeasts and dermatophytes.

The core mechanism principle is achieved through disrupting the fungal cell membrane by inhibiting the biosynthesis of ergosterol, a sterol essential for the structural integrity of fungal cells. As an Azole Antifungal, Clotrimazole prevents fungal growth by inhibiting ergosterol synthesis. This focused action results in a fungistatic (growth-stopping) and sometimes fungicidal (fungus-killing) effect, allowing for the resolution of the superficial mycotic outbreak.

Regulatory References

  1. Clotrimazole Topical Drug Information (MedlinePlus)

What side effects are possible with Clotrix?

Possible Side Effects and Safety Information

The safety profile of Clotrix, which contains Clotrimazol, is described in regulatory documents primarily by localized reactions due to the drug’s low systemic absorption from topical and vaginal forms. Adverse reactions are grouped into defined System Organ Classes (SOCs) for consistent regulatory reporting.

Documented Adverse Reactions

Adverse effects are often reported at the application site. For topical forms, reactions such as stinging or burning sensation, pruritus (itching), erythema (redness), and irritation are often classified as common. The majority of other systemic and severe reactions are reported post-marketing, meaning their frequency classification is typically defined as not known by regulatory bodies.

Reported adverse effects are classified across several SOCs, including Skin and Subcutaneous Tissue Disorders, Immune System Disorders, Vascular Disorders, and General Disorders and Administration Site Conditions.

Serious Safety Considerations

Official prescribing information documents rare but clinically serious adverse reactions that are potentially associated with the medicine, including Anaphylactic reaction and Angioedema, which represent systemic hypersensitivity events. These are often listed with a frequency of not known.

Population and Contextual Safety Notes

Regulatory documents provide specific context for use in certain situations. The medicine is generally permitted for use during pregnancy and lactation, though caution is advised, and use in the first trimester is generally limited to when considered essential. The label also contains warnings that, when used genitally, the medicine may reduce the effectiveness and safety of latex-containing contraceptives (condoms and diaphragms). For the oral lozenge formulation, monitoring of liver function tests is officially recommended for patients with pre-existing hepatic impairment.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory classification for Clotrix (Clotrimazol), which is primarily administered locally, notes that acute systemic intoxication is unlikely to occur following a dermal or vaginal overdose. This classification stems from the drug’s minimal systemic absorption, as documented in regulatory prescribing information.

The documented overdose risk is primarily associated with the accidental oral ingestion of the non-oral preparations. If this exposure occurs, regulatory guidance states that clinical symptoms may become apparent, including dizziness, nausea, and vomiting.


Emergency Response and Management

Regulatory authorities mandate specific actions for accidental ingestion. You must seek immediate medical attention or immediately contact a Poison Control Center. For severe, life-threatening scenarios, such as when the individual is collapsed or not breathing, the official regulatory guidance requires calling local emergency services.

Management is defined as symptomatic and supportive treatment. The official label explicitly states that no specific antidote is known for Clotrimazol overdose. Procedural steps, such as gastric lavage, are considered routine measures but are only suggested if the documented clinical manifestations of overdose are present following the accidental ingestion.

Therapeutic Uses of Clotrix

What Clotrix Treats: Main Uses and Benefits

Clotrix, which contains the antifungal agent Clotrimazol, is commonly used to help with symptomatic relief and therapeutic support across key areas involving localized fungal and yeast infections. Its purpose is to provide support that helps ease the overall symptom burden and contributes to improved comfort during periods of heightened symptoms. The medication is commonly used to help with fungal conditions like ringworm (Tinea corporis), jock itch (Tinea cruris), and athlete's foot (Tinea pedis), along with yeast infections of the skin and mucous membranes.


The medication is applied in addressing symptom clusters that may become more disruptive, such as intense itching, localized burning sensation, prominent redness, and scaling or cracking of the skin. It may assist with easing symptoms of vulvovaginal candidiasis (yeast infection) and oropharyngeal candidiasis (oral thrush), which may present as mucosal irritation or white patches.

Quick Fact

Used for managing symptoms related to Persistent Itching and Burning

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Official Eligibility and Contraindications

Clotrix (Clotrimazol) use is defined by specific population eligibility rules documented by governmental regulatory authorities. The medicine is strictly contraindicated for individuals with a known hypersensitivity to clotrimazole or to any of the specific excipients present in the formulation. Furthermore, it is not for ophthalmic use (in the eye) and is not suitable for deep-seated infections of the nail or scalp, which require alternative treatment.

Age and Physiological Restrictions

Use is established for adults and children; however, over-the-counter (OTC) topical products are not recommended for children under 2 years of age unless explicitly advised by a healthcare professional. Vaginal formulations are typically intended for use in females 12 years of age and older. During pregnancy, use in the first trimester is restricted and should only occur if clearly indicated, though use in the second and third trimesters is generally not associated with adverse effects. Caution is also advised when using the medicine while breastfeeding.

Conditional Use Constraints

The label specifies that vaginal formulations may reduce the reliability and effectiveness of latex contraceptive products, such as condoms and diaphragms, requiring conditional use. Separately, patients with pre-existing hepatic impairment using the oral lozenge formulation are advised to undergo periodic hepatic function assessment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Clotrix (Clotrimazol) interactions is defined by the specific dosage form and the associated level of systemic exposure.

Systemic Drug-Drug Interactions

Concomitant use of the vaginal form with systemic immunosuppressants, such as Tacrolimus and Sirolimus, may result in increased plasma concentrations of the immunosuppressants due to inhibition of drug-metabolizing enzymes. The oral lozenge form is associated with a high interaction risk when co-administered with certain medications, including Bedaquiline, Colchicine, Dihydroergotamine, and Doxorubicin; these combinations are generally not recommended due to the potential for significant exposure modification of the co-administered drug.

Product and Timing-Based Constraints

The vaginal and topical forms are officially documented to have a physical interaction with certain non-medicinal products. The use of these forms may cause damage to latex contraceptives such as condoms and diaphragms, potentially reducing their effectiveness. Official labeling requires alternative barrier precautions for at least five days following the use of the product. Intravaginal products, including tampons, douches, and spermicides, should not be used concurrently during the treatment period.

Population-Specific Notes

For the oral lozenge form, patients with hepatic dysfunction require monitoring, as the condition may alter the overall systemic interaction risk profile.

Mechanism of Action

Specific Inhibition of Fungal Ergosterol Biosynthesis

The primary action of Clotrix (Clotrimazol) is the specific inhibition of Lanosterol 14-alpha-demethylase (CYP51), an essential enzyme in fungal cells. By binding to the heme iron of this enzyme, the drug blocks the metabolic pathway required for the fungus to produce ergosterol.


Alteration of Fungal Cell Membrane Structure

This blockage results in a critical depletion of ergosterol, while simultaneously causing the accumulation of 14-alpha-methylated sterols (intermediate sterols that disrupt cell function) within the fungal membrane. This dual effect compromises the structural integrity and selective permeability of the fungal cell, leading to the efflux (leakage) of essential internal components.


Physiological Consequences for Fungal Cells

The resulting cellular damage causes profound cellular dysfunction and inhibits the fungal cell's ability to divide (arrested growth) and, at sufficient concentration, leads to cellular death. This mechanism operates locally, restricting its primary action to the fungal cells at the application site.

Dosage and Administration Information

How to Use Clotrix: Official Administration Guidelines

Clotrix (Clotrimazole) is administered via specific local routes. The administration protocol varies significantly based on the dosage form and the intended site of application, strictly focusing on local use patterns.


Labeled Dosing Regimens and Administration Routes

Administration Route Standard Regimen Examples Frequency and Duration
Topical (Dermal) Apply 1% cream or solution to affected area. Twice daily for 2 to 4 weeks (up to 8 weeks for tinea pedis).
Intravaginal 100 mg daily, 200 mg daily, or 500 mg single dose. Courses range from 1 to 7 consecutive days.
Oral (Transmucosal Lozenge) 10 mg lozenge for local effect. Five times daily for 14 consecutive days (treatment).

Required Administration Conditions

Administration of Clotrix must adhere to specific label-based constraints to ensure proper use:

  • Topical: A thin film of the product must be gently massaged into the affected and surrounding skin areas.
  • Intravaginal: Insertion of the tablet or cream is generally recommended to occur at bedtime to promote retention and local action.
  • Oral Lozenge: The lozenge must be placed in the mouth and allowed to dissolve slowly over approximately 30 minutes; it must not be chewed, crushed, or swallowed whole.

Treatment must be continued for the full prescribed duration, even if symptomatic improvement is observed before the course is finished. Pediatric use follows the adult regimen for children 3 years and older, though specific age constraints apply to intravaginal use.

Recent Clinical Evidence

Research evidence / Overview of studies for Clotrix

Evidence Supporting Use in Vaginal and Dermal Yeast Infections

Research for Clotrix in the context of yeast infections was conducted in extensive clinical research settings, including numerous randomized controlled trials (RCTs) and summaries known as meta-analyses. The research specifically examined short-term treatment courses, typically lasting between one and seven days, and monitored metrics describing perceived discomfort and mucosal irritation. Trial outcomes reported the frequency of mycological eradication—which refers to achieving a negative fungal culture—in the observed populations. Clinical status was also frequently described in the research, with measurements monitoring the variability of symptoms such as itching and irritation over the study period. While the available body of evidence is well-documented, data for conditions characterized by fluctuating or episodic manifestations, specifically recurrent vulvovaginal candidiasis (RVVC), remains limited.

Research Evidence for Dermatophytosis (Skin Fungus)

Clotrix was also evaluated in studies exploring short-term symptom changes for common fungal skin conditions, including athlete's foot and ringworm. These studies compared topical formulations against either an inactive substance or other topical treatments. Research highlights patterns observed in the studies, describing the frequency of negative fungal findings and the evolution of physical manifestations over the defined time interval. Follow-up measurements were also studied for a few weeks after the end of therapy to characterize the evolution of symptom patterns.

Key Evidence Gaps and Areas of Scientific Uncertainty

Several research limitations frame the current evidence landscape. Comparative evidence is lacking for certain newer antifungal agents across all primary indications. Additionally, long-term outcomes are not fully established, as follow-up durations were limited in many pivotal trials, providing little information on the sustained durability of the findings. Data for certain groups remain insufficient, including the detailed application of the topical forms in specific young pediatric populations. Research provides context about group patterns, but study results reflect the specific conditions under which they were conducted, and research does not determine whether an individual will respond similarly.

Key Studies & References

  1. Clotrimazole Topical Drug Label and Information
  2. Guidance on the use of antifungals in pediatric patients (Example: IDSA or similar national guideline)

Frequently Asked Questions (FAQ)

Common questions about Clotrix (FAQ)


Q: How quickly does Clotrix start working after I begin taking it?

Official clinical documents indicate that patients using the topical solution may notice clinical improvement, such as a reduction in itching (pruritus), typically within the first week of starting treatment. For all forms, it is important to continue the full treatment course prescribed in the regulatory directions.


Q: Can Clotrix affect my sleep?

Official regulatory documents and patient information for Clotrix (Clotrimazole) do not list changes in sleep as a common, frequent, or established side effect. Site-specific adverse reactions, like burning or itching at the application area, are common, but their impact on sleep is not specifically addressed in the documented adverse effects.


Q: What is the difference between Clotrix and other similar medicines (in general terms)?

Clotrix is officially classified as an azole antifungal medication. Its mechanism is defined as inhibiting a specific enzyme in the fungal cell wall, Lanosterol 14-alpha-demethylase (CYP51), which disrupts the cell's integrity. Other medications in the antifungal class may operate through different chemical structures or mechanisms to achieve their therapeutic effect.


Q: What if I forget to take a dose of Clotrix?

Official patient instructions advise that if a dose is forgotten, the general direction is to apply it as soon as it is remembered, unless it is almost time for the next scheduled dose. If the latter is true, the missed dose should be skipped, and the regular schedule should be continued. Patients are generally advised not to use a double amount to compensate for a missed application.


Q: Can Clotrix cause stomach problems?

Because topical and vaginal forms of Clotrix are poorly absorbed into the body, stomach problems are generally not listed as common adverse reactions in regulatory documents for these forms. However, when the oral lozenge form is used, regulatory documents note that gastrointestinal adverse events, such as nausea, may be reported.


Q: Does alcohol consumption affect how Clotrix works?

General regulatory information does not note a specific restriction for alcohol consumption when using the common topical or vaginal forms of Clotrix. However, the regulatory document suggests that alcohol consumption may be addressed when the oral lozenge is used in combination with other medications that affect the liver.


Q: Are there any dietary restrictions I need to follow while on Clotrix?

According to official patient information, patients are generally instructed to continue their normal diet while using Clotrix. Specific food restrictions are typically not noted in regulatory documents for this medication unless a healthcare professional advises otherwise.


Q: Is it normal to feel dizzy when first starting Clotrix?

Dizziness is not listed as a common or frequent side effect in most regulatory documents for the local forms of Clotrix. In rare instances, dizziness may occur as a symptom of a severe, systemic hypersensitivity event (like an anaphylactic reaction), which are considered serious and require the assessment of a healthcare professional.


Q: How is Clotrix eliminated from the body?

Following topical or vaginal application, Clotrix is described as being very poorly absorbed into the body. Official regulatory documents indicate that 0.5% or less of the medication applied topically is excreted in the urine, with the remainder primarily being eliminated through other pathways.


Q: Can I crush or split the Clotrix tablets?

Official instructions for the oral lozenge form state that it must not be chewed, crushed, or swallowed whole, and must be allowed to dissolve slowly in the mouth. Administration instructions for the vaginal tablet generally involve insertion, not altering the tablet itself.


Q: Is Clotrix used to treat DVT or pulmonary embolism?

No. The official indications for Clotrix are for the treatment of dermal and vaginal fungal infections (such as athlete's foot, ringworm, and candidiasis). It is not indicated for the treatment of conditions like deep vein thrombosis (DVT) or pulmonary embolism (PE).


Q: What happens if a child accidentally takes Clotrix?

Official warnings state that Clotrix should be kept out of the reach of children. In the event of an accidental ingestion, official warnings instruct to seek professional assistance or contact a Poison Control Center. Acute overdosage from topical application is considered unlikely to pose a life-threatening risk.


Q: Does the time of day I take Clotrix matter?

The time of day can matter depending on the formulation. For the vaginal tablet or cream form, the regulatory administration protocol generally recommends application at bedtime. This is generally recommended as part of the administration protocol for that specific form. For topical forms, the instruction is typically a general frequency, such as 'twice a day,' without a specific required time.


Q: What should I do if I notice unusual bruising while taking Clotrix?

Bruising is not commonly listed as a standard adverse effect in official documents for Clotrix, though vaginal bleeding has been reported as a rare post-marketing effect associated with intravaginal use. Any unusual bleeding or bruising should be brought to the attention of a healthcare professional for assessment.


Q: Does Clotrix interact with herbal remedies?

Official patient information sheets generally advise patients to inform their healthcare provider about all products they use, including herbal products, before using Clotrix. It is standard practice to inform a healthcare provider of all products being used.


Q: Does Clotrix interact with specific foods other than grapefruit?

Official patient information generally states that, unless otherwise directed, no special dietary instructions or food restrictions are required while using Clotrix.


Q: Can Clotrix affect my liver function?

For the oral lozenge form, regulatory documents note that mild elevations in liver enzymes have been reported, and assessment of liver function is recommended for patients with pre-existing hepatic impairment. For topical and vaginal forms, official information primarily addresses the possibility of changes in liver function tests related to the oral lozenge form, due to minimal systemic absorption from topical or vaginal forms.


Q: Is Clotrix taken every day or only when needed?

Clotrix is generally prescribed according to a fixed course of treatment defined in the regulatory documents. Regulatory information states that the medication should be used for the full treatment time prescribed; it is not intended for use only when symptoms are perceived.


Q: Can Clotrix be used by people with kidney issues?

Since Clotrix is poorly absorbed from topical and vaginal forms, official information generally does not list specific constraints related to kidney impairment, likely due to minimal systemic absorption.


Q: How long do most people stay on Clotrix treatment?

The length of treatment for Clotrix is defined in regulatory documents based on the condition being treated. Courses range from a single dose up to 1 to 7 consecutive days for vaginal forms, or typically 2 to 4 weeks for common topical forms.


Q: What happens if I suddenly stop taking Clotrix?

Regulatory documents state that the medication should be used for the full treatment time, even if symptoms have improved. Premature discontinuation is noted to potentially result in a lack of complete resolution of the fungal infection or an increased risk of recurrence.


Q: Can I take my regular vitamins and supplements while on Clotrix?

Official patient information generally advises patients to inform their healthcare provider about all products they use, including vitamins and nutritional supplements, before using Clotrix. It is standard practice to inform a healthcare provider about all products being used.


Q: What is the risk of bleeding while taking Clotrix?

The overall risk of bleeding is low due to the minimal systemic absorption of Clotrix. However, official safety profiles note that vaginal bleeding has been reported as a rare or post-marketing adverse effect associated with the intravaginal use of the medication.


Q: What are the known limitations or uncertainties about Clotrix based on current research?

Regulatory summaries of research evidence highlight several uncertainties, including a lack of extensive comparative evidence against newer antifungal agents, limited data on long-term patient outcomes, and insufficient detailed application data for certain young pediatric populations.


Q: How is Clotrix packaged, and how should it look?

Official regulatory documents define the packaging by its format, such as a tube (cream), bottle (solution), or applicator-equipped kit (vaginal). Specific details regarding the product's size, dosage form, and commercial presentation are defined by the unique National Drug Code (NDC) for each marketed item.


Q: Can Clotrix be used for pets (general informational question)?

The official regulatory documentation (such as FDA and DailyMed) explicitly labels Clotrix for Human OTC Drug or Rx status. Its approved uses and indications are strictly defined for the treatment of human dermal and mucosal infections.

How should Clotrix be stored and disposed of?

How to Store and Dispose of Clotrix (Clotrimazol)

The official storage requirements for Clotrix (Clotrimazol) are defined by government regulatory agencies to maintain product stability.


Storage Conditions

The medicine must be stored at Controlled Room Temperature (20 to 25 C) or below 30 C, depending on the formulation. The product must be protected from moisture and excessive heat and must not be frozen. To prevent degradation, the container should be kept tightly closed and stored in its original packaging. It is mandatory to keep Clotrix out of the sight and reach of children.


Disposal

Do not use the medicine past the expiry date. Disposal of unused or expired product must be done according to local pharmaceutical waste regulations. The product must not be disposed of in wastewater (flushed down the toilet or poured down a drain).

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

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