Myfungar

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Myfungar

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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 Myfungar

Quick Facts

Property Description
Active ingredient Oxiconazole nitrate
Form Dermal cream, Topical solution
Pharmacological class Antifungal drug (Azole compound)
Common use Superficial fungal infections (Antimycotic)
Origin Synthetic (Imidazole derivative)

What is Myfungar and Its Pharmacological Identity?

Myfungar is a topical antifungal drug whose active component is Oxiconazole nitrate, a synthetic chemical categorized as an imidazole derivative. This places it within the azole compound family of antimycotic agents designed for external use. It is a pharmacological agent utilized for addressing the range of pathogens that cause skin mycoses.

Oxiconazole functions as a topical agent against common superficial fungal pathogens, including dermatophytes and Candida species. This medication is a compound used to inhibit the growth of fungi on the skin.

Composition, Formulation, and General Therapeutic Purpose

Oxiconazole nitrate is a single-ingredient product formulated for topical application and is available as a dermal cream or a topical solution. These preparations, consisting of the active agent mixed with a cream base or a solution base, are optimized for external use application. The availability of both a cream and a solution allows for application on various skin textures and body areas.

Its overarching therapeutic purpose is to manage localized fungal conditions by applying the agent directly to the affected tissue. This focused approach is intended for the treatment of superficial mycoses, aiming to address the fungal presence in the skin while minimizing systemic exposure.

Regulatory References

  1. DailyMed

What side effects are possible with Myfungar?

Possible Side Effects and Safety Information

The official safety profile for Myfungar (Oxiconazole nitrate) is primarily defined by localized reactions associated with its topical application, as established by government regulatory documents. Adverse reactions are grouped by regulatory authorities under Skin and subcutaneous tissue disorders.

Documented Localized Reactions

The most commonly reported adverse reactions in clinical trials involve localized discomfort at the application site. These reactions are officially described as:

Localized Reactions (Reported Frequency in Trials) Additional Post-Marketing Reactions
Burning (0.7%) Irritation
Stinging (0.7%) Allergic contact dermatitis
Pruritus (Itching) (0.4%) Folliculitis
Scaling (0.4%) Erythema (Redness)

The sensations of burning and stinging are officially noted as transient, implying they are typically of short duration.


Safety Constraints and Special Populations

Myfungar is contraindicated in individuals with known hypersensitivity to any of its components. The regulatory label requires that treatment be discontinued if a reaction suggesting sensitization or chemical irritation develops.

Specific safety considerations exist for certain groups:

  • Pediatric Use: The safety and effectiveness of Oxiconazole nitrate have not been established in pediatric patients.
  • Pregnancy and Nursing: The drug should be used during pregnancy only if clearly needed. Caution is advised for nursing mothers, as Oxiconazole is excreted in human milk.

All use is strictly topical, and the product is not for ophthalmic, oral, or intravaginal application.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Myfungar (Oxiconazole nitrate) addresses the risk associated with accidental swallowing rather than the intended topical application, as no human overdoses have been reported with normal external use.

Ingestion Risk and Serious Outcomes

The medication is formally classified as harmful if swallowed. If accidental swallowing or overdose is suspected, immediate attention is critical, particularly if severe manifestations occur. These serious symptoms, documented in regulatory labeling, include passing out (loss of consciousness) and experiencing trouble breathing.

Overdose Context Regulatory Statement
Primary Risk The product is harmful if swallowed.
Management Symptomatic and supportive treatment is utilized.
Antidote No specific antidote is known.

Required Emergency Actions

In the event that accidental ingestion or an overdose is suspected, government regulatory authorities mandate specific, immediate actions. These include the requirement to seek immediate medical attention. Additionally, it is required to call emergency services or contact a Poison Control center right away. These steps are necessary to ensure that management, limited to supportive care, can be initiated promptly, especially if serious symptoms develop.

Therapeutic Uses of Myfungar

What Myfungar Treats: Main Uses and Benefits

Myfungar is generally applied across domains where additional symptomatic support is needed for conditions involving inflammatory or irritative processes. The medication is commonly used to help with conditions presenting with systemic or localized discomfort, including ringworm (Tinea corporis), athlete’s foot (Tinea pedis), and jock itch (Tinea cruris). This usage is relevant within the therapeutic area involving inflammatory or irritative processes. The medication may assist with managing the infection source, which contributes to improving the appearance and comfort of the affected skin.

“The approach is relevant for easing symptoms related to physical discomfort and assisting with managing the infection source.”

The medication is considered relevant in clinical settings that involve acute or episodic changes, helping address symptom clusters that may become intense, such as itching (pruritus) and a localized burning sensation. Applied in areas where short-term symptom management is appropriate, managing these symptoms contributes to improved comfort during periods of heightened symptoms. Myfungar is also relevant for managing symptoms that interfere with daily functioning, specifically physical skin changes like scaling, flaking, and cracking.


Therapeutic Relevance: Management of Itching (Pruritus)
Symptom Axis: Symptoms related to inflammatory or irritative states.
Clinical Context: Applied in scenarios where additional management of discomfort is required.
Patient Benefit: Contributes to improved comfort during periods of heightened symptoms.

Regulatory References

  1. Official DailyMed Drug Label for Oxiconazole Nitrate

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Myfungar — Official Regulatory Information

Populations for whom use is contraindicated: Myfungar is contraindicated in any individual who has shown hypersensitivity or a known allergy to oxiconazole or any other component present in the specific cream or lotion formulation. The product is strictly for external dermal use only and is not to be used in the eyes, mouth, nose, vagina, or any other mucous membranes.


Age-Related Eligibility Rules:

Age Group Eligibility Status (Regulatory Basis)
Adults and Older Adults Approved for standard use. Data in patients aged 65 and older are insufficient to definitively determine if they respond differently than younger subjects.
Pediatric Patients (Cream) May be used for labeled indications, though conditions treated are noted as rarely occurring in children under the age of 12.
Pediatric Patients (Lotion) Safety and effectiveness of the lotion formulation have not been established in children.

Pregnancy and Lactation Eligibility Status:

The drug is classified as Pregnancy Category B. It should be used during pregnancy only if clearly needed, as there are no adequate and well-controlled studies in pregnant women. Caution is recommended for nursing mothers because oxiconazole is known to be excreted in human milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory prescribing information for Myfungar (Oxiconazole nitrate) defines the interaction profile based on the findings from systematic evaluation of potential drug interactions.

Official Regulatory Status

Category Regulatory Statement
Systematic Interaction Evaluation Not systematically evaluated.
Exposure-Altering Interactions None documented.
Contraindicated Combinations None listed.

The FDA and equivalent government regulatory bodies note that potential drug interactions between Oxiconazole nitrate and other medicinal products have not been systematically evaluated. This statement is consistent with the drug's formulation as a topical antifungal agent, which results in minimal systemic absorption, meaning that the drug largely remains localized to the application site.

Restrictions and Limitations

Because of the lack of systematic evaluation and the low systemic exposure, the regulatory label does not formally document specific pharmacokinetic interactions, such as those mediated by CYP enzymes or drug transporters. Consequently, the official labeling for Myfungar does not specify any mandatory timing rules for separating its administration from other medicines, nor does it list any specific contraindicated combinations due to a known interaction risk. The professional prescribing information contains no documented restrictions related to the concurrent use of food, alcohol, or herbal products.

Mechanism of Action

Myfungar (Oxiconazole nitrate) is a topical antifungal that functions by selectively disrupting key biosynthetic processes within the fungal cell, using a concentration-dependent cytotoxic mechanism involving two main stages.


Targeted Inhibition of Fungal Ergosterol Biosynthesis

Myfungar acts as an inhibitor of the fungal enzyme Lanosterol 14-alpha demethylase (CYP51). This enzyme is required for synthesizing ergosterol, the principal sterol that defines the structure and fluidity of the fungal cell membrane. Inhibition of CYP51 halts ergosterol production and initiates a cascade leading to cellular damage.


️ Destabilization and Lysis of the Fungal Cell Membrane

Depletion of ergosterol and the simultaneous accumulation of toxic, methylated sterol intermediates within the cell membrane results from the inhibition. This causes severe structural damage, resulting in the membrane losing its integrity and selective permeability. This structural failure causes the leakage of vital cellular contents and leads to the cessation of growth (fungistatic effect), culminating in fungal cell lysis (fungicidal effect) depending on local drug concentration.

Dosage and Administration Information

The administration of Myfungar is strictly limited to topical/dermal use, meaning the medication must be applied only to the skin and is prohibited for oral, ophthalmic, or intravaginal application. The drug is available as a 1% dermal cream or a 1% topical solution (lotion).

Official Dosing and Frequency

The standard dosing regimen requires application to the affected skin and the immediate surrounding area once or twice daily. For Tinea corporis (ringworm), Tinea cruris (jock itch), and Tinea pedis (athlete's foot), the prescribed frequency is once to twice daily. Tinea (pityriasis) versicolor, when treated with the cream formulation, is administered once daily.

Course Duration and Procedural Conditions

The duration of use is fixed by the condition being addressed. Typically, guidelines specify a 2-week course for Tinea corporis, Tinea cruris, and Tinea versicolor. Treatment for Tinea pedis requires a longer duration of 1 month (4 weeks), and the full course must be completed to reduce the possibility of recurrence. Procedurally, the topical solution must be shaken well before use, and hands should be washed both before and after application.

Administration constraints include the instruction to avoid the use of occlusive dressings (such as airtight bandages) over the application site. Regarding specific populations, no dosage adjustment is warranted for older adults, and the cream may be used for pediatric patients for the indicated conditions.

Recent Clinical Evidence

Myfungar: Recent Clinical Evidence

The evaluation of Myfungar, a next-generation echinocandin, is grounded in Phase 2 and Phase 3 clinical trials that primarily explored its use in treating invasive fungal infections, including candidemia and invasive candidiasis, compared to existing antifungal agents.

Efficacy and Comparative Trials

Studies focused on assessing whether Myfungar was non-inferior (not worse) to other standard-of-care echinocandins in achieving clinical and mycological success at defined time points. This non-inferiority standard is a common benchmark in antifungal drug development.

In head-to-head Phase 3 trials, overall success rates reported for Myfungar were comparable to the comparator drug. For instance, research explored global cure rates and all-cause mortality rates at 14 and 30 days, finding that the outcomes for Myfungar and the comparator drug were generally similar across adult patient populations.

Safety and Tolerability Profile

Across multiple studies, the safety and tolerability profile of Myfungar was reported to be similar to other agents in the echinocandin class. This observation is often attributed to the drug’s targeted mechanism of action against the fungal cell wall, a component not found in human cells.

Pharmacokinetic Advantage

Research has highlighted Myfungar’s prolonged half-life, which may support a less frequent dosing schedule compared to daily administration required for older echinocandins. This characteristic was investigated in clinical studies to see if it maintained adequate drug exposure levels in the blood over the extended dosing interval.

Research Focus Study Design Note Primary Comparison
Invasive Candidiasis Randomized, Double-Blind, Phase 3 Standard-of-Care Echinocandin
Safety and Tolerability Across all phases Observed adverse events and lab values
Pharmacokinetics Specialized modeling/Phase 1-3 data Extended half-life vs. Daily agents

Frequently Asked Questions (FAQ)

Common questions about Myfungar (FAQ)


Q: Why do some people need to take Myfungar for a long time?

The treatment duration is fixed by the condition being addressed. For infections like Tinea pedis (athlete's foot), a 1-month course is typically prescribed.

Official documents indicate that this longer duration is intended to help reduce the possibility of the infection returning (recurrence).


Q: Is it normal to feel [general, non-specific symptom, e.g., tired] when first starting Myfungar?

Adverse reactions documented in official prescribing information are primarily localized to the skin application site, such as burning, itching, or stinging. Systemic symptoms like generalized fatigue or tiredness are not listed in the official safety profile for this topical medication.


Q: Can Myfungar affect my liver or kidney function?

Myfungar is a topical medication and is expected to have minimal absorption into the bloodstream. Due to this low amount of drug entering the body's circulation, effects on internal organs like the liver or kidneys are not documented in the official safety profile.


Q: Can Myfungar cause problems with birth control pills?

Official information notes that potential drug interactions between oxiconazole nitrate and other medicines have not been systematically evaluated. No specific interactions, including those with oral contraceptives (birth control pills), are documented, which is consistent with the drug’s minimal systemic exposure.


Q: Is Myfungar safe to use in older patients (seniors)?

Studies and official information indicate that while data in older adults is limited, the adverse reactions reported were similar to those in younger patients. According to regulatory guidance, no dosage adjustment is described as warranted for older adults.


Q: Is there any research evidence that Myfungar works for [general condition name]?

Clinical evidence supports the drug's use for the topical treatment of specific dermal infections, including Tinea corporis (ringworm), Tinea cruris (jock itch), Tinea pedis (athlete’s foot), and Tinea (pityriasis) versicolor.


Q: Where can I find the official clinical trial results for Myfungar?

Summaries of the clinical trial findings and reported adverse reactions are documented within official regulatory sources, such as the FDA DailyMed label and the professional prescribing information.


Q: Can Myfungar cause my skin to be more sensitive to the sun?

Photosensitivity (increased skin sensitivity to sun exposure) is not listed among the documented side effects or special warnings in the official prescribing information for this topical medication.


Q: What are the documented safety concerns for using Myfungar in pregnant women?

The drug is classified as Pregnancy Category B, indicating animal studies have not revealed a risk to the fetus. However, because there are no adequate studies in pregnant women, official documents state it should be used during pregnancy only if clearly needed.


Q: Do studies suggest Myfungar has any long-term effects after stopping it?

Official labeling focuses on the drug's safety and efficacy during and immediately after the treatment course. Long-term studies focusing on potential effects after prolonged cessation of the medication are not documented in the professional prescribing information.


Q: What does 'fungistatic' vs 'fungicidal' mean regarding Myfungar?

The mechanism of action involves two effects. Fungistatic means the drug acts to stop the growth of the fungal cells, and fungicidal refers to its ability to cause fungal cell lysis (death), with the final outcome depending on the local drug concentration.


Q: Can Myfungar affect my ability to drive or operate machinery?

Effects on mental alertness, such as the ability to drive or operate heavy machinery, are not documented in the official safety information. This is consistent with the drug's topical use and lack of reported systemic side effects like drowsiness.


Q: If I have a [pre-existing condition, e.g., heart issue], is Myfungar still an option?

Official contraindications for Myfungar are limited to a known hypersensitivity (allergy) to its components, or use in non-dermal areas. Systemic pre-existing conditions (like heart issues) are not listed as contraindications in the official label.


Q: How is Myfungar different from [similar competitor drug name]?

Myfungar is an azole antifungal that works by disrupting the synthesis of ergosterol, a key component of the fungal cell membrane. Official regulatory documents focus on its own mechanism of action rather than comparing its performance against competitor drugs.


Q: What are the common research themes being studied about Myfungar right now?

Themes of past clinical studies focused on comparing the drug’s effectiveness to other antifungals, assessing its safety and tolerability profile, and evaluating its pharmacokinetics (how it is absorbed and eliminated) to determine optimal dosing.


Q: What is the official chemical name of the active ingredient in Myfungar?

The active ingredient is formally known as Oxiconazole nitrate. It is a synthetic chemical that belongs to the imidazole derivative, or azole, class of antifungal agents.


Q: What kind of monitoring might be needed while taking Myfungar?

The official label primarily emphasizes patient self-monitoring for signs of localized irritation or a reaction suggesting sensitization. If such a reaction develops, the patient is advised to notify their healthcare provider.


Q: Why is it important to complete the full course of Myfungar?

Patients are instructed to use the medication for the full treatment time recommended, even if symptoms have improved. This full course is specified to reduce the possibility of the infection returning (recurrence).


Q: Is Myfungar commonly used as a preventative medicine?

Official regulatory documentation supports the drug’s use for the treatment of specified superficial fungal infections. Patients are instructed not to use the medication for any disorder other than that for which it was prescribed.


Q: What if Myfungar doesn't seem to be working after a few weeks?

The official prescribing information indicates that the patient should notify their healthcare provider if there is no clinical improvement after the recommended treatment period (2 to 4 weeks), as the original diagnosis may need to be reviewed.


Q: What is the risk of Myfungar causing allergic reactions?

The most commonly reported adverse reactions are local discomfort. Allergic contact dermatitis was reported in a small percentage of patients in clinical trials. The label notes that treatment should be discontinued if a reaction suggesting sensitization or irritation develops.

How should Myfungar be stored and disposed of?

Storage and Disposal Requirements

This section outlines the official, label-based instructions for the storage and disposal of Myfungar (Oxiconazole nitrate topical).

Storage Condition Requirement
Temperature Store at controlled room temperature, between 20 C and 25 C (68 F and 77 F), with excursions allowed up to 30 C.
Protection The product must be protected from heat and moisture; do not store the container in the bathroom.
Container Rule Keep the container tightly closed and store the medicine in its original container.

Child Safety and Waste Disposal

Storage rules require that this medicine be kept out of the sight and reach of children.

Disposal must follow specific guidelines: the product must not be thrown away in household trash or poured down a drain (wastewater). Unused or expired medication should be disposed of via an official drug take-back program or according to local waste authority instructions.

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

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