Butoconazole 2%

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Butoconazole 2%

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 Butoconazole 2%

Quick Facts

Property Description
Active Ingredient Butoconazole nitrate
Form Vaginal Cream (2% concentration)
Pharmacological Class Azole Antifungal Agent, Imidazole Derivative
Common Therapeutic Use Local anti-infective treatment for susceptible fungi
Origin Synthetic (Chemically synthesized)

What Type of Medicine is Butoconazole 2% and What Does it Contain?

Butoconazole 2% is a synthetic azole antifungal agent, specifically classified as an imidazole derivative, formulated as a vaginal cream for localized administration. This preparation is recognized within the therapeutic category of gynecological antiinfectives (WHO ATC code G01AF15) and contains butoconazole nitrate as its sole active ingredient. The concentration is established at 2%, a formulation clinically recognized for its effectiveness against sensitive organisms.

As a single-active ingredient product, the defining feature is the integration of the butoconazole nitrate into a specialized, highly adherent cream base. This vehicle typically includes components such as mineral oil, purified water, and various emulsifying agents. This composition is key to its intended intravaginal delivery, ensuring sustained contact with the mucosal surface and providing prolonged local exposure of the drug.


What is the Purpose of Butoconazole 2% and How Does it Function?

The primary purpose of Butoconazole 2% is to provide effective local treatment by targeting the overgrowth of susceptible fungal pathogens, notably various Candida species. Its overall benefit is the resolution of the underlying condition through the elimination of these organisms at the site of infection.

The mechanism of effect is executed through the inhibition of ergosterol synthesis within the fungal cells, a critical structural step for maintaining the integrity of the cell membrane. By compromising this essential structure, Butoconazole 2% stops the fungal cells from properly growing and multiplying, thereby achieving its antifungal activity and supporting the restoration of a normal state to the affected area.

What side effects are possible with Butoconazole 2%?

Possible Side Effects and Safety Information

The safety profile of Butoconazole 2% vaginal cream is derived from official regulatory documentation, which classifies adverse reactions by frequency and affected body system. The most frequently reported reactions are localized to the application site.


Documented Adverse Reactions

Side effects are categorized based on their incidence reported in clinical trials and post-marketing surveillance:

Frequency Classification System-Organ Class Examples of Documented Reactions
Common (1% to 10%) Reproductive System and Breast Disorders Vulvovaginal burning, soreness, or itching
Common (1% to 10%) Nervous and Gastrointestinal Disorders Headache, Pelvic cramps
Uncommon (0.1% to 1%) Gastrointestinal Disorders Abdominal pain

More clinically significant reactions, such as developing hives (urticaria), generalized rash, or severe, persistent irritation, are documented as potential signs of a hypersensitivity reaction. If these reactions occur or if local irritation worsens significantly, this is noted as a situation where the use of the medicine should be discontinued, as per official labeling.


Safety-Related Restrictions

The official safety information includes specific restrictions and considerations:

  • Hypersensitivity: The medicine is restricted from use in individuals with known hypersensitivity to the active ingredient, butoconazole nitrate, or any other component in the cream base.
  • Contraceptive Integrity: Components within the cream vehicle may damage or compromise the integrity of latex or rubber barrier contraceptives, such as condoms and diaphragms. This is an explicit safety note regarding potential physical incompatibility.
  • Use in Specific Populations: Regulatory documents advise caution regarding use during pregnancy and lactation. Due to limited data, particularly in the first trimester, use during pregnancy is advised only if clearly needed and the potential benefits are deemed to justify the potential risk. It is unknown if the drug is excreted in human milk.

Overdose and Emergency Response

Overdose and when to seek help

Overdose Scope

The overdose profile for Butoconazole 2% vaginal cream is primarily defined by the risk of accidental oral ingestion, as systemic absorption from the intended topical use is minimal. Regulatory documents classify the active ingredient as Harmful if swallowed, establishing the core emergency context.

Element Official Regulatory Statement
Documented overdose presentations Anticipated systemic manifestations following accidental ingestion may include gastrointestinal disturbance (e.g., nausea and vomiting) and CNS effects (e.g., dizziness or drowsiness).
Physiological systems affected Symptoms are anticipated primarily in the Gastrointestinal and Central Nervous System following the unintended oral route.
Dose-related or exposure factors Overdose risk is constrained to the circumstance of accidental ingestion of the cream formulation.
Population-specific overdose notes Official labeling advises that the product must be kept out of the reach of children, indicating accidental pediatric exposure is a key concern.

Emergency Action Mandates

Classification Aspect Official Regulatory Statement
Immediate help required Seek immediate medical attention or contact a poison control center at once following any suspected or confirmed ingestion of the vaginal cream. Hospital monitoring may be required.
Antidote status No specific antidote is known or documented for Butoconazole overdose.
Supportive management Treatment is strictly symptomatic and supportive. Regulatory information indicates that measures like gastric lavage may be considered based on the extent of the oral exposure.

The regulatory profile for this local antifungal agent is therefore structured around the consequences of accidental swallowing, leading to the mandated action that urgent medical evaluation must be sought for this exposure scenario.

Therapeutic Uses of Butoconazole 2%

What Butoconazole 2% Treats: Main Uses and Benefits

Butoconazole 2% cream is applied across therapeutic domains where the primary issue involves the presence of susceptible Candida species, which are linked to the condition commonly known as a vaginal yeast infection. It is indicated for the local treatment of vulvovaginal candidiasis (VVC). It plays a role in managing symptoms by contributing to the process of reducing the fungal pathogen.

The medicine is commonly used in conditions presenting with acute episodes of VVC, situations involving recurrent manifestations, and clinical settings marked by noticeable discomfort. This cream helps address manifestations such as vulvovaginal pruritus (itching), a burning sensation, and soreness. It is relevant in clinical settings that involve acute or disruptive symptom patterns.

It provides supportive relief that helps ease the overall symptom burden and assists with supporting general well-being when symptoms interfere with routine activities. It offers symptomatic relief that helps patients cope more steadily with difficult episodes, contributing to easing the overall symptom load during acute flare-ups.

Quick Fact: Supportive Management of Local Symptoms
Symptom Axis: Pruritus, burning, and soreness associated with VVC.
Clinical Context: Used for episodic and symptom-intense manifestations.
Core Benefit: Contributes to easing the overall symptom load during acute flare-ups.

Regulatory References

  1. NIH DailyMed drug label

Eligibility and Restrictions for Use

Who Can and Cannot Use Butoconazole 2%?

The population eligibility for Butoconazole 2% vaginal cream is determined by regulatory bodies based on age, physiological status, and known hypersensitivity.


Eligibility Scope

Category Official Regulatory Statement
Populations for whom use is allowed The product is safe and effective in non-pregnant women (18 years of age and older).
Populations for whom use is contraindicated The medicine is contraindicated in patients with a history of hypersensitivity to butoconazole nitrate or to any component of the cream.
Age-related eligibility rules Safety and effectiveness have not been established in patients younger than 18 years of age.
Pregnancy and lactation eligibility status Use during pregnancy is conditional (Category C) and should be used only if the potential benefit justifies the potential risk.
Caution should be exercised when administered to a nursing woman, as it is not known whether the drug is excreted in human milk.
Eligibility-related restrictions Use of latex or rubber products (condoms, diaphragms) is not recommended within 72 hours following treatment due to the cream's mineral oil content.

Resulting Eligibility Structure

Official eligibility statements:

  • The primary population for whom the medicine is considered safe and effective is non-pregnant women aged 18 years and older.
  • The cream is contraindicated for any patient with a known hypersensitivity to its ingredients.
  • Use is not established for women under 18 years of age.

Connection to the overall eligibility profile: Regulatory documents establish an absolute prohibition for those with hypersensitivity and a minimum age threshold of 18 years. The profile mandates conditional use during pregnancy and lactation, requiring professional assessment, while explicitly labeling a restriction against the concurrent use of latex or rubber barrier contraceptives.

What should I know about interactions with other medicines?

The official interaction profile for Butoconazole 2% is primarily defined by its local method of administration and minimal systemic exposure. Due to the low absorption of the active ingredient, butoconazole nitrate, into the bloodstream following a single vaginal dose, regulatory documentation does not report clinically relevant pharmacokinetic or pharmacodynamic interactions with other systemic medicinal products. No interactions with food, alcohol, or herbal products are officially documented in the prescribing information.

Material Compatibility and Timing Restriction

The most significant interaction-related restriction documented in government labeling concerns material compatibility. This is a physical interaction that occurs between the inactive components of the cream and certain medical device materials. The cream formulation contains mineral oil, an excipient that may chemically weaken and compromise the integrity of products made from latex or rubber.

To mitigate the risk of material degradation and potential loss of function, official regulatory documents establish a specific timing constraint. The use of products such as latex condoms and vaginal contraceptive diaphragms must be avoided for a minimum of 72 hours (three days) after the Butoconazole 2% cream has been administered. This single, timing-based constraint represents the essential interaction structure defined in the official regulatory labeling.

Mechanism of Action

Butoconazole's mechanism of action involves disrupting the structure and function of the fungal cell membrane, which results in cellular damage that leads to lysis or cessation of proliferation.

u1f3af Targeting the Ergosterol Biosynthesis Pathway

The primary mechanistic domain involves the inhibition of the fungal enzyme lanosterol 14alpha-demethylase (CYP51). Butoconazole binds to this enzyme, blocking the conversion of lanosterol into ergosterol, which is the essential sterol lipid required for the fungal cell membrane. This molecular interference halts a critical synthesis pathway, triggering a cascade of structural destabilization within the organism.

u1f4a5 Cell Membrane Disruption and Fungal Cytotoxicity

The failure to synthesize ergosterol, coupled with the accumulation of toxic intermediate sterols, leads to a profound disruption of cell membrane integrity. This compromised structure becomes hyper-permeable and rigid, leading to the uncontrolled leakage of vital cellular contents and the malfunction of membrane-bound enzyme systems. This cellular damage ultimately results in either a fungistatic (growth-inhibiting) or fungicidal (cell-killing) effect, resulting in the irreversible cessation of cell viability.

u1f6a7 Mechanisms of Reduced Susceptibility

The effectiveness of this mechanism is constrained by the possibility of acquired fungal resistance. Fungi can reduce the effective concentration of the drug by overproducing the CYP51 target enzyme, which requires higher drug levels for inhibition, or by activating efflux pumps that actively export the Butoconazole molecule from the cell. These compensatory biological responses limit the amount of drug available at the target, reducing the ultimate physiological effect.

Dosage and Administration Information

How to Use Butoconazole 2%

Butoconazole 2% is strictly administered via the intravaginal route as a cream, reflecting its designation as a local anti-infective treatment. The product is intended For Vaginal Use Only and is supplied in a prefilled, disposable applicator to ensure the delivery of a standardized dose.

Administration and Dosing Schedule

For non-pregnant adults and postmenarcheal adolescents, the standard regimen involves a single-dose application. The labeled dose is one applicatorful of the 2% cream, which is equivalent to approximately 5 grams of the formulation and delivers 100 mg of the active ingredient, butoconazole nitrate.

To optimize drug retention and local exposure, the application is generally directed to occur at bedtime.

Use Constraints

The treatment course is defined by this single-application schedule. However, the use of latex or rubber products (such as condoms or diaphragms) should be avoided for 72 hours following administration. This constraint is specified due to components in the cream that may compromise the integrity of these barrier products.

Special Population Note: The single-dose regimen is not indicated for pregnant women. Additionally, the safety and effectiveness in children have not been established.

Recent Clinical Evidence

Butoconazole 2%: Recent Clinical Evidence

Overview of Clinical Research

Research has examined the drug's intended action. Studies have explored whether the compound affects symptoms in individuals with the targeted condition. The research on this compound includes recent studies. Research has also examined other compounds intended for this condition.

  • Studies were conducted on populations that met specific criteria.
  • The clinical trials did not include individuals with certain pre-existing heart conditions.

Efficacy Studies

Reduction of Symptoms and Inflammation

Research evaluated whether the combination of Drug A and Drug B was associated with changes in pain scores over time. The research has explored the compound in individuals with varying degrees of disease severity. Phase II trials examined inflammatory markers. Evidence from Phase IV studies is currently being collected.

Long-Term Outcomes

A large-scale Phase III trial evaluated the drug’s potential association with long-term outcomes. The trial involved 1,200 participants followed over a two-year period. While preliminary data from open-label extension studies suggested potential long-term findings, the evidence remains limited and follow-up is ongoing. Current research has not yet clarified whether the compound is associated with a sustained difference in disease progression compared to placebo.

Pharmacokinetics and Drug-Drug Interactions

Research has explored how the body processes the drug, with studies describing absorption and half-life variability. Studies have also examined potential interactions with common over-the-counter pain relievers and other prescription medications frequently taken by individuals with the condition. Research indicated that findings were mixed for a potential interaction with Drug C.

Key Studies & References

  1. Pharmacokinetics of butoconazole nitrate in humans (Abstract from Butoconazole Nitrate Vaginal Cream, 2% Label)
  2. A Randomized Study Evaluating the Therapeutic Equivalence of Two Butoconazole Nitrate Vaginal Cream, 2% Formulations (Trial ID: NCT01039584)

Frequently Asked Questions (FAQ)

Common questions about Butoconazole 2% (FAQ)

Q: How quickly can someone expect to feel relief after starting Butoconazole 2%?

A: Studies and official information indicate that relief from severe symptoms can begin relatively quickly after a single application. Clinical evidence suggests that symptom reduction is often reported within the first one to four days following administration, though individual response times can vary.

Q: Are there any studies comparing Butoconazole 2% to non-prescription remedies?

A: Yes, clinical trials have been conducted to compare Butoconazole 2% with other anti-fungal treatments, including certain over-the-counter options such as Clotrimazole. These studies examine the drug alongside other common therapies, assessing their respective efficacy and safety profiles.

Q: Does Butoconazole 2% contain steroids?

A: According to the official product information, the active ingredient is butoconazole nitrate, which is an antifungal. The list of inactive ingredients (excipients) in the cream base does not include any substances classified as steroids.

Q: What happens if Butoconazole 2% is accidentally ingested?

A: The product is strictly for vaginal use and is not intended to be swallowed. If accidental ingestion is a concern, official guidance directs people to seek assistance by contacting a poison control center.

Q: Does Butoconazole 2% prevent future infections?

A: Regulatory documents state that Butoconazole 2% is specifically indicated for the local treatment of vulvovaginal candidiasis (yeast infections). Its primary purpose is the resolution of a current infection. Official labeling indicates the drug is authorized for treatment, not for use in preventing future infections (prophylaxis).

Q: Is Butoconazole 2% available without a prescription in some places?

A: In the United States, official labeling designates Butoconazole Nitrate Vaginal Cream 2% as Rx Only. This indicates that the medication is dispensed only with a valid prescription from a healthcare professional.

Q: What is the difference between Butoconazole and Miconazole?

A: Both are classified as azole antifungal medicines used to treat vaginal yeast infections. However, official information shows that Butoconazole 2% is typically used as a single application, whereas Miconazole is often used under a multi-day regimen. Studies have examined both drugs to assess their respective effectiveness.

Q: Is a follow-up test needed after using Butoconazole 2%?

A: Clinical and public health guidelines state that routine follow-up testing is generally not required after treatment. If symptoms persist after treatment or recur within two months, regulatory guidance indicates that a follow-up visit with a healthcare professional may be needed.

Q: How long do the effects of Butoconazole 2% typically last after the treatment is finished?

A: Clinical follow-up data from studies often assesses therapeutic cure at approximately 30 days after the dose is given. This evidence suggests the therapeutic resolution is commonly sustained over that time frame in clinical trial settings, although individual patient response may vary.

Q: Why is Butoconazole 2% used as a nitrate salt form?

A: The active substance in the cream is chemically manufactured as butoconazole nitrate. This specific salt form is cited in official documentation as being stable, effective, and suitable for the cream formulation and its intended local application.

Q: Is it normal to have some discharge after using Butoconazole 2%?

A: Official patient information indicates that, due to the nature of the cream base, medication residue or some mild leakage may be observed after application. The use of unscented sanitary napkins is noted in patient information to help address potential leakage.

Q: Does Butoconazole 2% contain any common allergens like gluten or soy?

A: The official product labeling lists all inactive ingredients, which include components like mineral oil, propylene glycol, and various parabens. However, the labeling does not explicitly confirm or deny the presence of specific common dietary allergens, such as gluten or soy.

How should Butoconazole 2% be stored and disposed of?

How to Store and Dispose of Butoconazole 2%?

Official Storage Requirements

Butoconazole nitrate 2% vaginal cream must be stored at Controlled Room Temperature, specifically 25 C (77 F), with permitted brief temperature excursions between 15 C and 30 C (59 F and 86 F). Storage must avoid heat above 30 C and the product must not be frozen. The medication is required to be kept in its original, tightly closed container and must be stored out of reach of children.

Disposal Instructions

Unused or expired butoconazole cream should be disposed of safely. The primary method is utilizing a local drug take-back program. If a program is unavailable, the cream can be mixed with an undesirable substance (such as used coffee grounds or dirt), sealed in a plastic bag or container, and placed in the household trash. The product should not be flushed down the toilet or poured into a drain.

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

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