Keto AZ

Quick links to important sections

Keto AZ

Treatment option:

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Keto AZ

Quick Facts

Property Description
Active Ingredients Ketoconazole, Pyritinol (or Zinc Pyrithione)
Form Topical Solution, Shampoo, Cream, Lotion
Pharmacological Class Azole Antifungal and Antidandruff Preparation
General Purpose Control of yeast overgrowth and related skin flaking/irritation
Origin Synthetic

What is Keto AZ and What Type of Medicine is It?

Keto AZ is a synthetic combination medicine formulated exclusively for topical application to the skin and scalp. It is classified as a specialized dermatological medication that utilizes two distinct active ingredients to address microbial imbalance and associated irritation. The preparation belongs to the antifungal drug class, with its core component, Ketoconazole, positioning it as an azole antifungal.

This product is distinguished by its nature as a dual-agent therapy, providing action against conditions involving both yeast proliferation and subsequent skin cell disruption. Because the preparation incorporates the second agent, Pyritinol (or Zinc Pyrithione), it is categorized as an effective antidandruff preparation in addition to being an antifungal.

Keto AZ: Understanding the Dual-Agent Composition

The essential composition of Keto AZ involves the synergistic effects of Ketoconazole and the supplementary component, Pyritinol. The primary action of Ketoconazole is to stop the growth and reproduction of fungal cells by disrupting the integrity of their cell membranes. This Ketoconazole action is a key differentiator in dermatological combination products.

The secondary ingredient offers an important anti-proliferative and surface-regulating effect, aiding in the control of cell shedding and microbial load. This comprehensive, combined composition ensures the medicine targets both the microbial imbalance and the physical irritation simultaneously. Keto AZ is supplied in various versatile dosage forms, including a Topical Solution, Shampoo, and Cream.

What is the General Purpose of Keto AZ?

The general therapeutic purpose of Keto AZ is to provide effective control over the fungal organisms that cause common skin and scalp conditions, such as reducing severe flaking and scaling. By stabilizing the skin's surface environment through its dual action, the medicine aims to reduce visible irritation. The versatility in dosage forms ensures that this antifungal preparation can be efficiently applied directly to the site of concern, maximizing the benefit of the active ingredients precisely where they are needed.

What side effects are possible with Keto AZ?

Adverse Reactions and Safety Profile for Keto AZ

The most common adverse reactions reported in clinical studies for Keto AZ (ketoconazole foam, 2%) are related to the application site, specifically application site burning and application site reaction.

Less common reactions reported include application site dryness, irritation, erythema, rash, warmth, and itching. Postmarketing experience has also included application site pain and skin burning sensation.


Serious Safety Information and Restrictions

Systemic Risks: Serious systemic adverse reactions, such as potentially fatal liver injury (hepatitis) and adrenal gland problems, have been associated with orally administered ketoconazole. However, these serious systemic effects have not been observed with the use of the topical foam formulation.

Flammability Risk: The contents of the foam include flammable ingredients. Users must avoid fire, flame, or smoking during and immediately following the application of the product. The container should not be punctured, incinerated, or exposed to high heat.

Contact Sensitization: The foam may cause contact sensitization, including photoallergenicity. If skin irritation or a worsening condition occurs, it may be necessary to discontinue use.

Specific Populations: The safety and effectiveness of the foam formulation have not been established in pediatric patients under 12 years of age. Use in pregnancy is based on a benefit-risk assessment as there are no adequate and well-controlled studies in pregnant women.

Keto AZ is for use on the skin only. It must be strictly avoided in the eyes, mouth, or vagina.

Overdose and Emergency Response

Keto AZ Overdose and When to Seek Help

Official regulatory documentation regarding topical medicines like Keto AZ (Ketoconazole/Pyrithione Zinc) indicates there is no documented experience of overdose following the intended route of application to the skin or scalp. Due to the minimal systemic absorption of the active ingredients when used topically, the official overdose profile focuses entirely on the risk of accidental oral ingestion of the solution or shampoo formulation.

Regulatory authorities explicitly state that the product may be harmful if swallowed and define this as a scenario requiring immediate attention. Severe outcomes that necessitate urgent medical care include manifestations of severe allergic reactions, such as difficulty breathing, tightness in the chest, or swelling of the mouth, face, or tongue.

Upon any accidental oral exposure, official guidance mandates that an individual seek immediate medical attention. The required emergency action is to contact a Poison Control Center or a healthcare provider right away. Management procedures described in the labeling are limited to the use of supportive and symptomatic measures, reflecting the official position that no specific antidote is known for this type of exposure. This approach ensures all documented risks and regulatory mandates for emergency response are clearly defined.

Therapeutic Uses of Keto AZ

Ketoconazole, the medication in Keto AZ, is a topical medication that supports the management of various skin conditions. It is indicated for conditions presenting with systemic or localized discomfort, specifically in the therapeutic domains of treating cutaneous infections. This may assist with the overall symptom burden associated with fungal growth.

The primary therapeutic areas of use are for infections that create noticeable physiological strain, including ringworm of the body, groin, and foot (tinea corporis, tinea cruris, and tinea pedis), tinea (pityriasis) versicolor, cutaneous candidiasis, and seborrheic dermatitis. This medication contributes to improved comfort during periods of heightened symptoms by easing distress and supporting a return to functional stability.

“The use of this medication may assist with easing distress and supports a return to functional stability.”

Quick Fact: Relevant for Easing Localized Discomfort

Regulatory References

  1. DailyMed FDA Label for Ketoconazole Cream 2%

Eligibility and Restrictions for Use

Who Can and Cannot Use Keto AZ (Oral Formulation)

Official regulatory documents strictly define the eligibility for the oral tablet formulation of Ketoconazole. This medication is not a first-line therapy and is restricted for use only in patients with specific serious systemic fungal infections when other effective antifungal treatments are either unavailable or not tolerated.

Eligibility Exclusions (Contraindications)

Individuals who must not use the oral formulation include those with a known hypersensitivity to Ketoconazole or any component of the tablet. Use is contraindicated in patients with acute or chronic liver disease due to the risk of severe liver injury. Additionally, it is prohibited for patients concurrently taking a defined list of medications that can lead to dangerous drug-drug interactions, such as life-threatening QT prolongation (e.g., ranolazine, dofetilide, quinidine) or severe increases in the concentration of other drugs.

Age and Condition-Specific Limitations

The safety and efficacy of the oral tablet have not been established for children under two years of age. Its use is also not recommended for certain localized fungal infections, such as fungal meningitis (due to poor penetration) or non-serious skin/nail infections, as the risks associated with the systemic medication outweigh the potential benefits for these conditions.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Keto AZ (Topical Ketoconazole and Zinc Pyrithione) is primarily defined by the minimal systemic absorption of its active ingredients, a finding consistently documented in official government regulatory sources such as the FDA and EMA. Because the medicine is applied topically to the skin and scalp, the potential for systemic drug-drug interactions (DDIs) is considered negligible.

Official Regulatory Status

Interaction Entity Status for Topical Formulation
Systemic Interaction Risk Unlikely due to negligible systemic absorption
Formal Drug Interaction Studies Not performed or documented in regulatory labeling

Consequently, the official prescribing information for topical ketoconazole does not list specific interacting medicines, contraindicated combinations, or mandatory timing separation rules that are based on systemic pharmacokinetic interactions. Formal drug interaction studies have not been performed for the topical formulation, confirming that the extensive CYP-mediated interactions associated with oral ketoconazole do not apply to the topical product.

There are no explicitly documented interactions in official regulatory labeling with food, alcohol, herbal products, or supplements. The overall regulatory structure communicates that the risk of systemic interaction is low and is not a clinical constraint for this topical medicine.

Mechanism of Action

Keto AZ contains ketoconazole, an imidazole derivative that operates by acting as an inhibitor of the fungal cytochrome P450-dependent enzyme lanosterol 14alpha-demethylase (CYP51). This enzyme catalyzes the conversion of lanosterol to ergosterol, a sterol essential for maintaining the structural integrity and permeability of the fungal cell membrane. The molecular interaction involves ketoconazole binding to the heme iron component of the enzyme. Intracellularly, this inhibition blocks the downstream biosynthesis of ergosterol. This results in two key molecular consequences: a depletion of ergosterol and a corresponding accumulation of methylated sterol precursors within the fungal cell membrane. The system-level physiological consequence of this alteration is a structural and functional compromise of the fungal cell membrane, leading to increased permeability and leakage of essential cytoplasmic constituents. Additionally, at high concentrations, ketoconazole functions as an inhibitor of certain human cytochrome P450 enzymes involved in adrenal and gonadal steroidogenesis, specifically 17alpha-hydroxylase and 17,20-lyase. This inhibition suppresses the synthesis of cortisol and androgens.

Dosage and Administration Information

How Keto AZ is Used: Official Administration Guidelines

The usage of Keto AZ is strictly confined to topical application to the skin or scalp, utilizing 2% cream or 1% and 2% shampoo formulations. All instructions for administration, frequency, and duration must be followed precisely as established for this medication.

Official Administration and Dosing

Preparation and Target Area Standard Frequency and Duration Administration Notes
2% Cream (Tinea, Candidiasis) Applied once daily for a fixed duration, typically two weeks. Apply to the affected area and the immediate surrounding skin.
2% Cream (Seborrheic Dermatitis) Applied twice daily for up to four weeks or until clinical clearing. Not established for use in children under 12 years of age.
2% Shampoo (Tinea Versicolor) A single application is typically sufficient. Apply to damp skin, lather, and leave in place for 5 minutes before rinsing thoroughly.
1% Shampoo (Dandruff Control) Use every three or four days for up to eight weeks. Following the initial course, use switches to an as-needed maintenance pattern.

General Procedural Instructions

Topical forms are for external use only. Administration must always be localized to the prescribed area. Users must wash their hands thoroughly after handling the medicine. Specific formulations, such as gels or foams (noted for their potential flammability), must be kept away from heat, open flames, or smoking during and immediately following application.

Recent Clinical Evidence

Research evidence / Overview of Studies for Keto AZ


Evidence for use in Seborrheic Dermatitis

Research exploring the clinical evaluation of the topical formulation for seborrheic dermatitis is often based on short-term, randomized controlled trials (RCTs). These studies compare the active treatment to a placebo or an active comparator. The trials primarily included adults and adolescents (typically ge 12 years old) experiencing moderate to severe forms of this condition.

In these studies, researchers monitored changes in the overall clinical status using standardized scores, such as the Investigator's Global Assessment (IGA), which is used in research exploring how symptoms change over time. Studies monitored changes in the observed populations, with many trials describing measured differences in signs like scaling and redness, and in symptoms like pruritus (itching) over the short treatment period (usually 2 to 4 weeks). Findings describe patterns observed in the studies related to measured outcomes.


Evidence for use in Dandruff (Pityriasis Capitis)

Research has explored the medicine’s use for dandruff, a condition characterized by fluctuating or episodic manifestations, primarily through RCTs that compared the active ingredients to a placebo or an active comparator. These studies were applied in trials assessing short-term or episodic symptom patterns and involved adults with measurable levels of flaking.

Research examined outcomes related to physical discomfort by measuring specific scores, such as the total dandruff severity score and the amount of scalp flaking. Research highlights changes measured during the study period, with findings suggesting patterns related to the observed measurements of visible flaking and scaling. Patient-reported outcomes describing perceived discomfort, such as itching, were also studied for evidence.


Gaps in Current Research and Uncertainties

While research provides insight into short-term changes, evidence highlights what is known — and what is still uncertain. Comparative evidence is lacking in some areas, as much of the regulatory research for the component ingredients predates the widespread use of the dual-agent formulation.

Furthermore, the primary limitations in the overall evidence landscape are associated with the follow-up durations were limited in many key studies, meaning the long-term effects are not fully established. Data for specific groups remain insufficient; for instance, there is limited information available from studies for the use of this topical medicine in children under 12 years of age.

Key Studies & References

  1. DailyMed FDA Label for Ketoconazole Cream 2%

Frequently Asked Questions (FAQ)

Common questions about Keto AZ (FAQ)


Q: Is Keto AZ considered a type of long-term or short-term treatment?

Regulatory documents indicate that treatment with this medicine is often described as a fixed, short duration for some uses, such as two to four weeks. However, official guidelines also allow for its use in a long-term maintenance pattern for managing chronic conditions like dandruff control.

Q: Does Keto AZ have any official 'black box' warnings in its labeling?

Official regulatory labeling for the topical formulation of Keto AZ does not contain a boxed warning. The severe warnings associated with systemic effects, such as potential liver injury, are specific to the oral form of the active ingredient, which is absorbed into the bloodstream. These serious risks have not been observed with the topical product.

Q: Do side effects from Keto AZ usually get better over time?

The purpose of using the medicine is to see improvement in the underlying skin condition over the initial weeks of treatment. If a local reaction like skin irritation occurs or if the condition appears to be worsening, official labeling advises that the use of the medicine should be discontinued.

Q: Does Keto AZ interact with common over-the-counter (OTC) pain relievers?

Due to the medicine's negligible systemic absorption, official information indicates a low potential for drug-drug interactions. Formal interaction studies have not been performed for the topical product, and no specific interactions with OTC pain relievers are listed in the regulatory labeling.

Q: Can Keto AZ be taken with other prescription medications, and are there common interaction themes?

The potential for systemic interactions with other prescription medications is considered unlikely because very little of the active ingredient is absorbed into the bloodstream. The known extensive interaction themes that occur with the oral formulation of the medicine do not apply to the topical product.

Q: What information is available about Keto AZ use during pregnancy?

Official labeling states there are no adequate and well-controlled studies of the medicine in pregnant women. Its use during pregnancy is based on official guidance regarding a benefit-risk assessment.

Q: Can patients with kidney issues use Keto AZ, according to regulatory documents?

Official labeling does not list any specific restrictions for patients with kidney impairment when using the topical product. This is consistent with the medicine having negligible systemic absorption, which means the kidneys play a minimal role in processing and eliminating the active ingredients.

Q: What are the official considerations for taking Keto AZ while breastfeeding?

Official regulatory information states that it is not known whether the active ingredient in Keto AZ is excreted, or passed, into human milk following topical application to the skin or scalp.

Q: Are there official warnings about combining Keto AZ with alcohol?

There are no explicitly documented warnings or interactions with alcohol listed in the official regulatory information for the topical formulation. The severe warnings about combining the medicine with alcohol are specific to the oral tablet formulation.

Q: How is the safety profile of Keto AZ described for patients who have liver problems?

The serious risk of liver injury (hepatitis) is strongly associated with the oral formulation of the active ingredient. Official reports indicate that these serious systemic effects have not been observed with the use of the topical formulation.

Q: What is the difference between brand-name Keto AZ and any generic version?

Generic formulations are supported by regulatory data that demonstrates they are bioequivalent to the reference brand-name drug. This means they are demonstrated to be bioequivalent and contain the same active ingredients.

Q: Is a specific side effect, like feeling dizzy, considered normal when starting Keto AZ?

Clinical trial data from regulatory submissions shows that systemic effects like dizziness have been reported as adverse reactions in less than 1% of subjects using the topical foam formulation.

Q: Are there specific symptoms that official information advises patients to look out for?

Official sources describe that if signs of a potential allergic reaction occur, such as hives, swelling of the face, or difficulty breathing, attention should be sought. They also advise discontinuation if severe or worsening skin irritation occurs.

Q: Are there ongoing studies or areas of research still being examined for Keto AZ?

While initial approval studies are complete, regulatory agencies mandate that manufacturers comply with strict reporting requirements for approved drug applications. This includes the obligation to report adverse events and any new safety data that emerges after the product is released.

Q: Is it true that Keto AZ must be taken with food, or is that a common misunderstanding?

The topical medicine is applied directly to the skin or scalp and does not have a requirement to be taken with food. The instruction to take the medicine with a meal is specific to the oral tablet formulation to assist in its absorption.

Q: Is Keto AZ known to cause any long-term effects that develop over many years?

Official research summaries note that the initial key trials were short-term and that definitive long-term effects are not fully established. However, some controlled safety studies have followed patients for up to 12 months.

Q: Is it possible to have an allergic reaction to Keto AZ, and what are the signs described?

Official patient information confirms the possibility of an allergic reaction. Signs of a serious allergic reaction may include a rash, hives, or swelling of the face, lips, tongue, or throat.

Q: Is there information on how Keto AZ affects other body systems besides the target condition?

Regulatory documents indicate that the oral formulation can inhibit human enzymes involved in adrenal and gonadal steroidogenesis. These systemic effects have not been observed with the topically administered product.

Q: Does official sources discuss what happens if Keto AZ is stopped suddenly?

Official patient information states that stopping use too soon may mean the underlying infection or condition is not completely cured. If treatment is stopped before the condition is resolved, symptoms may return.

Q: Why do some people need to take Keto AZ for a very long time?

The necessity for prolonged use is described in official administration guidelines for the management of chronic conditions. This is typically seen as an 'as-needed' maintenance pattern that may follow the initial treatment course for controlling conditions like dandruff.

Q: How is the safety of Keto AZ monitored after it has been approved and released?

Regulatory agencies mandate that manufacturers comply with strict reporting requirements for approved drug applications. This system includes the obligation to report adverse events and new safety data that emerges after the product is released to the public.

Q: Are there specific instructions for what to do in case of accidental overuse of Keto AZ?

Official labeling for the topical formulation indicates that there has been no experience of overdose reported with the product. The medicine is intended for external use only, and the low amount of active ingredient absorbed through the skin suggests a low risk.

Q: Do other medical conditions like diabetes or high blood pressure change who can take Keto AZ?

Official contraindications for the topical product do not specifically list common conditions like diabetes or high blood pressure as exclusions. This is consistent with its negligible systemic absorption, meaning it is unlikely to interact with these internal conditions.

How should Keto AZ be stored and disposed of?

Official Storage and Disposal Requirements

Storage Conditions:

Regulatory labeling requires Keto AZ (Ketoconazole) to be stored at a controlled room temperature, typically 20 C to 25 C (68 F to 77 F). The product must be protected from excess moisture, heat, and freezing. Always keep the medication in its original container, tightly closed, and away from direct light.

Handling and Safety:

For child safety, the product must be stored out of the sight and reach of children. The gel formulation carries a flammability warning, requiring users to avoid fire or flame during and immediately following application.

Disposal:

Do not keep expired or unused medicine. Due to the active ingredient’s toxicity to aquatic life, official instructions mandate that the product must not be released into the environment (e.g., drains or wastewater). Unwanted medication should be disposed of by consulting a healthcare professional for guidance on approved drug take-back or disposal programs.

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

Equivalent of Keto AZ found in:

A-Z Index: