Dandrazol

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Dandrazol

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Medically reviewed

Marina Burgos

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 Dandrazol

Dandrazol is a pharmacological preparation whose therapeutic efficacy is rooted in the single active ingredient, Ketoconazole, a synthetic antifungal agent. This medicine is designed to halt the growth of fungi and yeasts, providing a valuable therapeutic option for managing conditions caused by these organisms.


Property Description
Active ingredient Ketoconazole
Forms Oral tablet, cream, shampoo, gel, foam
Pharmacological class Azole Antifungal, Imidazole derivative
Common use Managing fungal infections
Origin Synthetic

Dandrazol: Definition and Pharmacological Classification

Dandrazol is an Azole antifungal agent, belonging to the Imidazole antifungal class, which defines its core chemical structure and high-level fungistatic mechanism. As a laboratory-developed compound, Ketoconazole is considered synthetic in origin, allowing for targeted activity against a range of yeasts and dermatophytes. This classification has been clinically recognized for its essential role in disrupting fungal cell processes.

Its function as an antifungal agent signifies its fundamental purpose: to neutralize or impede the growth of fungal organisms that cause infection. Pharmacologically, this class of drugs functions by inhibiting the synthesis of ergosterol, a vital component of the fungal cell membrane. This means the medicine stops the fungi from building the structures they need to survive and spread.

Forms, Composition, and General Antifungal Purpose

The active ingredient is formulated into various dosage form(s) to suit different applications, including the oral tablet for systemic use (internal action) and preparations like cream, shampoo, foam, and gel for topical application (on the skin or scalp). This adaptability is a key differentiating factor; the availability of both systemic and topical formulations allows for effective targeting of both localized and more pervasive fungal conditions. This means the drug can be used flexibly, for instance, in managing common superficial fungal issues like scaling on the scalp, which might benefit from the shampoo formulation.

The general purpose of all these formulations is to act as a fungistatic agent, assisting the body in resolving fungal issues by arresting the proliferation of the infectious cells.

What side effects are possible with Dandrazol?

Possible Side Effects and Safety Information

The safety profile of Dandrazol (Ketoconazole) is distinctly defined in regulatory documents based on its route of administration. The systemic oral tablet carries specific, serious safety constraints, whereas the topical forms (cream, shampoo, gel) primarily present localized reactions.

Adverse Reactions by Classification

Adverse reactions associated with the oral tablet are officially classified across several System-Organ Classes. These include Hepatobiliary Disorders (liver), Cardiac Disorders, and Endocrine Disorders. Common reactions listed in regulatory safety summaries often include gastrointestinal complaints such as nausea and vomiting. For topical formulations, the most frequently documented effects are Skin and Subcutaneous Tissue Disorders, with application site burning, pruritus, and erythema often classified as Common.

Serious Adverse Reactions and Safety Constraints

Serious adverse reactions associated with the Oral Tablet are explicitly documented. The official label includes high-level warnings concerning the potential for Serious Hepatotoxicity, which has included fatal cases, and a risk of severe Cardiac Arrhythmias, such as Torsades de pointes, particularly in the presence of certain drug interactions. Adrenal Insufficiency is also noted as a possible serious adverse reaction.

The use of the oral tablet is contraindicated in patients with underlying acute or chronic liver disease and in those with documented QTc prolongation. Safety documentation notes that hepatotoxicity has been reported following both short and long treatment durations, with the median time to idiosyncratic liver dysfunction often occurring around 28 days after initiation. Safety information for the oral form may specify the need for monitoring adrenal function in patients under prolonged stress.

Overdose and Emergency Response

The official regulatory profile for Dandrazol (Ketoconazole) overdose centers on the potential for severe organ toxicity and specific emergency actions mandated by health authorities. Documented manifestations may include symptoms of severe liver injury such as jaundice (yellowing of the skin/eyes), dark urine, or light-colored stools. Other signs of potential overdose or severe toxicity are related to cardiovascular distress, which may present as a fast, pounding, or irregular heartbeat, and endocrine effects like symptoms of adrenal insufficiency, including weakness and dizziness.

Overdose is classified as potentially leading to life-threatening outcomes, specifically fatal hepatotoxicity and severe ventricular dysrhythmias (torsades de pointes). Patients are instructed to call their healthcare provider right away if signs of liver injury appear. Immediate contact with emergency services is required if the individual experiences collapse, a seizure, trouble breathing, or cannot be awakened.

Management procedures are primarily supportive and symptomatic since no specific antidote is known. Regulatory documents stipulate that certain interventions, such as induced emesis (vomiting) and gastric lavage, should not be performed. Close monitoring, including checks of the QTc interval and liver function tests, is required.

Therapeutic Uses of Dandrazol

What Dandrazol Treats: Main Uses and Benefits

Dandrazol (Ketoconazole) is commonly used to help with a range of conditions involving fungal and yeast-related symptoms related to physical discomfort. The medicine is applied across distinct therapeutic domains, providing both mycological support and supportive symptom management.

It is commonly used to help with infections such as Tinea pedis (athlete's foot), Tinea corporis (ringworm), Cutaneous candidiasis, Pityriasis versicolor, and is also relevant for easing symptoms of severe dandruff and Seborrheic dermatitis. This medication is considered relevant for easing symptoms that create noticeable physiological strain in conditions characterized by periods of heightened symptoms. The primary benefit it offers supports patients during difficult episodes by easing distress and helps improve day-to-day comfort during symptomatic periods.

“This approach is relevant for easing symptoms that are otherwise highly disruptive, especially chronic scaling and persistent itching.”

The systemic form is commonly used in clinical settings that involve acute or unstable symptom patterns and is considered relevant for easing severe, invasive fungal diseases relevant when supportive symptom management is appropriate. In this context, it provides support to help ease the overall symptom burden of conditions marked by increased physiological stress.


Quick Fact: Relief for Fungal Discomfort
Dandrazol may assist with easing symptoms related to localized itching, addressing associated red, scaly rash, and managing symptoms related to persistent flaking often linked to superficial fungal and yeast infections.

Regulatory References

  1. NIH MedlinePlus overview on Ketoconazole Topical

Eligibility and Restrictions for Use

The eligibility for Dandrazol (Ketoconazole) is determined by the formulation, with the systemic oral tablet carrying severe restrictions documented by global regulatory bodies (e.g., FDA, EMA) that are not associated with the topical forms (creams, shampoos, gels).

Eligibility scope

Scope Systemic (Oral Tablet) Topical (Cream, Shampoo, Gel)
Populations for whom use is allowed Adults for specific endemic mycoses, only when alternative effective antifungal therapy is not available or tolerated.
Populations for whom use is contraindicated Patients with acute or chronic liver disease. Pregnant and Breastfeeding women. Patients with hypersensitivity.
Age-related eligibility rules Not established for use in children younger than 2 years of age. Safety and effectiveness have not been established in children younger than 12 years of age.
Condition-specific eligibility rules Contraindicated in patients with hepatic impairment. Requires weekly liver enzyme monitoring. No hepatic or renal impairment restrictions are documented for topical use.

Eligibility classifications (high-level)

The systemic form is classified as a Restricted Second-Line Use medication and carries Absolute Contraindications for liver disease and pregnancy. The topical form’s primary limitation is that use in children younger than 12 is Not Established, as defined in official regulatory labeling.

What should I know about interactions with other medicines?

Oral Dandrazol (ketoconazole) has a high potential for clinically significant and serious drug-drug interactions. The primary mechanism involves its potent ability to inhibit a major liver enzyme, Cytochrome P450 3A4 (CYP3A4), which is responsible for breaking down many other medications in the body. By inhibiting this enzyme, Dandrazol causes a substantial increase in the blood levels of co-administered drugs, which can lead to heightened side effects, toxicity, or life-threatening events.

Interacting Medicine Categories

Many combinations are contraindicated and must not be used together. This includes a wide range of medications whose increased concentration can cause severe heart rhythm problems (QT prolongation), such as certain antiarrhythmics and non-sedating antihistamines. Other high-risk interacting classes are certain statins (like simvastatin and lovastatin), some calcium channel blockers, benzodiazepines (like alprazolam), and ergot alkaloid migraine medicines.

Additionally, Dandrazol can interact with drugs that affect the body's acidity, such as antacids and certain stomach acid reducers, which can decrease Dandrazol's absorption. Patients should also avoid consuming alcohol and other potentially hepatotoxic drugs due to the increased risk of liver damage. Topical formulations of Dandrazol, such as creams and shampoos, have minimal systemic absorption and are generally not associated with these serious interaction risks.

Mechanism of Action

Dandrazol (ketoconazole) functions as an inhibitor selectively targeting the fungal cytochrome P450 enzyme, lanosterol 14-alpha demethylase (CYP51). This enzyme is crucial in the sterol biosynthesis pathway within the fungal cell membrane, catalyzing the conversion of lanosterol to ergosterol.

Inhibition of this enzymatic step results in the diminished synthesis and subsequent depletion of ergosterol, a primary structural component responsible for maintaining the integrity, fluidity, and permeability of the fungal cell membrane. The molecular and intracellular pathways are further modified by the concomitant accumulation of the methylated sterol precursor, 14-alpha-methyl-3,6-diol, which is considered a toxic metabolite. The system-level physiological consequence of these intracellular alterations is the compromise of the fungal cell membrane structure and function, leading to the cessation of cell division and growth.

Dosage and Administration Information

How Dandrazol is Used: Official Administration Guidelines

Dandrazol (Ketoconazole) is administered using distinct patterns based on whether the treatment is systemic (internal) or topical (external). This administration is based on established patterns for the medication.


Usage Patterns by Route of Administration

Administration Scope Oral (Systemic Tablet) Topical (Cream, Shampoo, Gel, Foam)
Official Route Swallowed by mouth for systemic absorption. Applied directly to the skin or scalp.
Dosing Frequency Typically administered once daily. Ranges from once daily to twice daily, or every 3 to 4 days for initial dandruff control.
Adult Dosing Starting dose of 200 mg once daily, which may be increased to 400 mg daily for approved severe indications. Form-specific, typically covering the affected area and surrounding skin.
Duration The course often requires 6 months or longer for systemic infections. Varies by condition and formulation, usually between 2 to 6 weeks.

Administration Conditions and Requirements

The oral tablet requires specific intake conditions to ensure proper dissolution and absorption. It is best taken with a meal to enhance the required acidic environment for the medicine to work optimally. If acid-reducing medicines (such as antacids) are also needed, instructions state they should be taken at least two hours after the oral tablet.

Topical application also requires procedural compliance. For example, the 2% topical shampoo must be lathered onto the affected area and left in place for 5 minutes before being rinsed off completely. Pediatric dosing for the oral tablet is based on weight, generally 3.3 to 6.6 mg/kg per day for children aged two years and older.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Dandrazol (Ketoconazole)


Evidence for use in Seborrheic Dermatitis and Severe Dandruff

Research exploring topical Dandrazol formulations (shampoo, cream, and foam) was conducted to evaluate seborrheic dermatitis and severe dandruff. These studies were conducted during periods of increased symptom activity, and research was studied for the topical formulations to see what outcomes related to scaling and itching were observed. The outcomes monitored were outcomes related to physical discomfort, focusing on signs like flaking, scaling, and inflammation, as well as patient-reported outcomes describing perceived discomfort.

Studies exploring short-term symptom changes reported findings describing patterns observed in the studies on standardized scales used by investigators to assess the overall condition. Research highlights changes measured during the study period, describing patterns related to scaling and redness when compared to non-active treatments. However, research does not determine whether an individual will respond similarly to the group patterns observed in these trials. Long-term effects are not fully established; follow-up durations were limited to a few weeks beyond the treatment period.


Evidence for use in Superficial Fungal Skin Infections (Tinea and Candidiasis)

Research for topical Dandrazol in conditions like Tinea infections (such as athlete's foot and ringworm) and cutaneous candidiasis relies on randomized controlled trials. These trials focused on evaluating two main outcomes: mycological cure, which involves laboratory confirmation that the fungal organism is no longer present, and clinical cure, which relates to monitored patterns of change in visible skin symptoms. Research examined these specific outcomes over short-term periods, typically 4 to 8 weeks.

Studies reported findings describing patterns observed in the studies related to both clinical and mycological clearance following the cessation of the designated treatment course. Findings describe patterns observed in the studies related to the proportion of participants with reported clearance of visible signs, such as redness and scaling.


Evidence for use in Severe Systemic Fungal Infections (Oral Tablet)

The systemic (oral tablet) formulation of Dandrazol was evaluated in research exploring outcomes related to systemic or functional imbalance. The product was studied for a narrow range of severe, life-threatening endemic mycoses, such as Coccidioidomycosis and Histoplasmosis, often focusing on patients who had failed or were unable to tolerate other established therapies. The studies examined outcomes describing patient status over time and monitored physiological strain or stress. The available evidence, especially for the systemic oral formulation, relies on historical data where evidence quality varies across studies.

Key Studies & References

  1. Ketoconazole Tablets (EMA/National Agency Review - Use in Pediatric Population and Data Sufficiency)

Frequently Asked Questions (FAQ)

Common questions about Dandrazol (FAQ)


Q: Is Dandrazol available over the counter, or do I need a prescription?

A: Dandrazol, which contains ketoconazole, is available in different formats based on its strength and intended use. Certain formulations of the shampoo are available over-the-counter (OTC) for managing common dandruff. However, official information indicates that higher-strength products, like the oral tablet and some topical creams, typically require a prescription.


Q: What happens if I stop using Dandrazol too soon?

A: Official administration guidelines emphasize that completing the full prescribed course of treatment is important. Stopping a topical treatment too soon may result in the original infection not being completely cured, increasing the likelihood that symptoms could return. For the oral tablet, official sources describe the importance of continuous use as advised.


Q: Are there any common foods or drinks that interact with Dandrazol?

A: For the oral tablet formulation, regulatory documents note that alcohol consumption is contraindicated due to a heightened risk of liver damage and a potential negative reaction. Furthermore, grapefruit or grapefruit juice has been described as potentially increasing blood levels of the oral tablet. Topical forms are not typically associated with these systemic interactions.


Q: Is Dandrazol considered a steroid?

A: Dandrazol's active ingredient, ketoconazole, is classified as an antifungal agent and is not a steroid. However, official product information indicates that the oral form of the medicine is known to suppress the body's natural adrenal corticosteroid secretion. This potential effect means that systemic use is subject to specific monitoring requirements.


Q: What is the risk of an allergic reaction to Dandrazol?

A: Serious allergic reactions, including a life-threatening reaction known as anaphylaxis, have been documented in official safety reports. For this reason, official product labeling lists known hypersensitivity (allergy) to ketoconazole or any of its inactive components as a contraindication.


Q: What ingredients should I check for if I have known sensitivities?

A: The active ingredient is ketoconazole, but sensitivities can arise from other components in the product. Regulatory information for topical creams often lists excipients, which are inactive ingredients such as sodium sulfite, propylene glycol, cetyl alcohol, and stearyl alcohol. Reviewing the full ingredient list for the specific formulation is described as appropriate for individuals with known sensitivities.


Q: Does Dandrazol contain parabens or sulfates?

A: Regulatory labels detail the full composition of the medicine, including the inactive ingredients. While official labeling lists common excipients like cetyl alcohol and sodium sulfite, specific confirmation of whether a particular formulation contains parabens or sulfates requires checking the product's official ingredient list.


Q: Has Dandrazol been studied for long-term safety?

A: Regulatory warnings and safety studies indicate that oral Dandrazol (ketoconazole) has been associated with serious liver problems following both short-term and long-term use. Official regulatory actions have placed limitations on the oral form due to these safety concerns, which include the risk of liver injury and adrenal issues.


Q: What if I accidentally swallow a small amount of Dandrazol?

A: The topical forms of Dandrazol (such as the cream and shampoo) are intended strictly for use on the skin or scalp. Official regulatory instructions include a specific warning that the topical medicine must be kept away from the eyes or mouth and is not intended to be swallowed.


Q: Is there a generic version of Dandrazol available?

A: The active drug in Dandrazol is ketoconazole, and official regulatory databases list this ingredient as a generic compound. This means that ketoconazole is available in various forms, including tablets, creams, and shampoos, from multiple different manufacturers.


Q: Does Dandrazol interact with oral pain medications, like ibuprofen?

A: The oral tablet is documented as a potent inhibitor of the CYP3A4 liver enzyme, which is responsible for breaking down many other drugs. This inhibition can cause the blood levels of co-administered medications to increase, presenting a potential risk for interaction. Official guidance indicates that all co-administered medications should be reviewed to assess potential interaction risks.


Q: Why is it important to complete the recommended course of treatment for Dandrazol?

A: According to official regulatory information, completing the full course of treatment as advised is necessary because the fungal infection may not clear up completely if the medicine is stopped prematurely. Completing the duration described in the instructions supports the intended process of managing the condition.


Q: Does Dandrazol carry any specific warnings for the elderly population?

A: While official regulatory documents do not provide specific information on the relationship of age to the primary effects of ketoconazole in geriatric patients, there may be implications related to interacting medications. Some high-risk side effects associated with drugs that interact with oral ketoconazole are reported more often in the elderly population.


Q: Can Dandrazol cause changes in skin pigmentation over time?

A: The safety profiles provided in patient information leaflets occasionally report rare skin adverse reactions, including hair color changes. Discoloration has also been noted in literature related to treating certain fungal conditions like tinea versicolor with ketoconazole.

How should Dandrazol be stored and disposed of?

Storage and Disposal of Dandrazol (Ketoconazole) Shampoo

The storage and disposal of Dandrazol must strictly follow the official conditions outlined in regulatory labeling.


Storage Requirements

Temperature and Environment: Dandrazol must be stored at controlled room temperature, which is typically defined as 20 C to 25 C (68 F to 77 F). The product must be protected from freezing and high heat. Temporary temperature variations are permitted between 15 C and 30 C.

Protection: The container must be kept tightly closed to maintain its integrity, and the medicine must always be stored out of the sight and reach of children.


Disposal Instructions

Unused or expired Dandrazol must be disposed of according to local regulations provided by the pharmacy or local authority. Regulatory guidance often states the medicine should not be disposed of via wastewater or household trash.

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

Equivalent of Dandrazol found in:

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