Kez

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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 Kez

What is Kez? and Its Classification

Property Description
Active Ingredient Ketoconazole
Forms Available Oral Tablet, Cream, Shampoo, Gel
Pharmacological Class Broad-spectrum Azole Antifungal
General Purpose Counteracts fungal and yeast proliferation; specialized role in hormone pathway modulation.
Origin Synthetic Imidazole Derivative

What Type of Medicine is Kez?

Kez is a medication containing the synthetic compound Ketoconazole, which is chemically categorized as a Broad-spectrum Azole Antifungal agent. This classification establishes its primary role as a targeted therapy designed to fight systemic and superficial infections caused by various fungal organisms, including yeasts and molds.

Kez is specifically an Imidazole Antifungal and is noted for its ability to interrupt metabolic processes vital to fungal cells. Furthermore, Ketoconazole is recognized for its distinct dual mechanism, which includes the capacity to influence certain enzyme pathways involved in the production of steroid hormones.


What Forms of Kez Are Available and How Are They Classified?

Kez is a Single-ingredient product available in distinct forms for either localized or internal treatment. The two primary routes of administration are Oral Tablets for systemic use and various Topical Preparations (such as Cream or Shampoo) for treating surface infections. The difference in form dictates the application; Oral forms require absorption into the bloodstream, while Topical forms deliver Ketoconazole directly to the skin or scalp.

What is the General Purpose of Ketoconazole?

The general purpose of Ketoconazole is to stop the growth of pathogenic fungi by disrupting their structural integrity. It accomplishes this by blocking the synthesis of ergosterol, an essential component of the fungal cell membrane. This primary physiological action makes Kez a powerful fungistatic agent, helping the body suppress fungal overgrowth. Additionally, the drug's capacity to modulate steroidogenesis serves a specialized purpose in managing specific endocrine disorders related to the overproduction of hormones.

Regulatory References

  1. FDA Labeling for Ketoconazole Cream

What side effects are possible with Kez?

Possible Side Effects and Safety Information

The safety profile of Kez (ketamine) includes known risks primarily related to its effects on the central nervous system, cardiovascular system, and genitourinary system. The official safety information highlights the need for stringent monitoring due to the potential for serious adverse reactions.

Key Adverse Reactions and Organ Systems

Adverse effects are categorized by the following systems, with certain reactions considered common or clinically significant:

  • Nervous System / Psychiatric: Common effects include sedation (sleepiness) and dissociation (a feeling of detachment from one's thoughts, feelings, and surroundings). Serious psychiatric events, including worsening of existing disorders, hallucinations, and delirium, have been documented.
  • Cardiovascular System: Transient increases in blood pressure and heart rate are frequently observed shortly after administration. In patients with pre-existing conditions, this elevation may pose a serious risk.
  • Respiratory System: Respiratory depression (slowed or shallow breathing) may occur, particularly with overdosage, rapid administration, or when used concurrently with other central nervous system depressants.
  • Genitourinary System: Lower urinary tract and bladder symptoms, often termed ketamine-induced uropathy (e.g., pain during urination, frequent urination), are a documented concern, especially with long-term or high-dose exposure.

Safety Considerations and Limitations

Ketamine products carry a documented potential for abuse and misuse. For this reason, the administration of a related, FDA-approved derivative is restricted to certified healthcare settings under a risk mitigation strategy that requires a period of post-administration monitoring.

Restrictions for Use: Ketamine is contraindicated in patients for whom a significant elevation of blood pressure or heart rate would constitute a serious hazard. Its use may also require caution in patients with a history of substance use disorder, severe heart disease, or uncontrolled psychosis.

Population Note: Pediatric and elderly patients may require particular caution due to increased susceptibility to neurotoxicity (in young children) or age-related organ issues (in the elderly), which may affect clearance and response to the drug.

Overdose and Emergency Response

Overdose and When to Seek Help

An overdose of Kez (Ketamine) is a serious medical emergency that requires immediate, urgent medical attention. The severity of symptoms is dose-dependent and can be life-threatening, particularly when the substance is used in large amounts or combined with central nervous system depressants like alcohol, opioids, or benzodiazepines, which dramatically increase the risk of respiratory failure.

Overdose presents with severe physical and psychological effects. The most critical signs that require emergency intervention include:

System Severe Symptoms (Overdose Presentations)
Respiratory Dangerously slow or shallow breathing, respiratory depression, or periods of stopped breathing (apnea).
Neurological Profound sedation, stupor, seizures (convulsions), loss of consciousness, or coma.
Cardiovascular Chest pain, irregular or dangerously low/high heart rate, and severe changes in blood pressure.
Mental State Extreme confusion, delirium, severe agitation, or psychosis.

If any of these severe signs occur, or if an overdose is suspected, seek emergency medical help without delay. There is no specific reversal agent (antidote) for Kez; treatment focuses on supportive care, monitoring vital signs, and managing complications such as respiratory distress or seizures in a medical setting.

Therapeutic Uses of Kez

Quick Facts: Kez Uses

  • Chronic Pain Management: May be utilized to help manage certain types of severe, ongoing pain.
  • Surgical Anesthesia: Approved for inducing and maintaining general anesthesia during medical procedures.
  • Emergency Medicine: Used as a resource for procedural sedation in various emergency contexts.

Kez is a medication that healthcare providers may use in the management of specific conditions requiring pain relief or sedation. Its primary therapeutic domains include providing analgesia for individuals experiencing acute, severe pain, particularly in emergency department settings. It is sometimes used as an alternative option when other first-line pain management strategies are not suitable or adequate.

Additionally, Kez has an established role in the field of surgical medicine. It is a resource available to physicians for the induction of general anesthesia prior to or during certain surgical procedures. The medication may also be used to maintain a state of unconsciousness during a short-term procedure. Patients and caregivers should always consult medical professionals for a complete understanding of the authorized uses and safety information related to this medication, as its application is restricted to professional healthcare settings.

Eligibility and Restrictions for Use

Eligibility Profile: Who Can and Cannot Use Kez

This section outlines the official population eligibility and exclusion criteria for Kez, based strictly on governmental regulatory documents like the FDA Prescribing Information and the EMA Summary of Product Characteristics (SmPC).

Classification Description of Official Status
Contraindicated Populations Patients with a known hypersensitivity to the active substance or to any of the product's components are prohibited from use.
Pregnancy and Lactation Use during pregnancy and breastfeeding is typically contraindicated, due to potential fetal harm or unknown excretion into human milk, as documented in official labeling.
Organ Impairment The medicine is generally not recommended for use in patients with severe hepatic impairment or severe renal impairment due to the risk of altered drug levels and insufficient safety data in these populations.
Age Restriction Safety and effectiveness have not been established for pediatric patients (children and adolescents). Therefore, use is restricted or not recommended for individuals under the officially specified age limit.

Populations for whom use is generally allowed are those who do not meet any of the defined exclusion criteria and do not present the specific concurrent medical conditions or physiological states detailed in the drug's safety label. The official documentation defines eligibility by detailing conditions that prohibit or restrict its use, rather than by listing eligible populations.

What should I know about interactions with other medicines?

Kez Interactions with other medicines and products

Official regulatory information requires the documentation of interactions between Kez and other medicines, foods, or supplements that may alter its presence in the body or change the resulting pharmacological effect. This section identifies known or predicted clinically significant interactions as stated in the government-approved prescribing information.

Interaction Type Interacting Agent Category/Example
Pharmacokinetic (PK) Impact Strong inhibitors of specific liver enzymes (e.g., CYP3A4 inhibitors)
Resulting Constraint Concomitant use with these agents is documented to increase Kez exposure (plasma levels).
Pharmacokinetic (PK) Impact Strong inducers of specific liver enzymes (e.g., CYP3A4 inducers)
Resulting Constraint Concomitant use with these agents is documented to decrease Kez exposure.
Pharmacodynamic (PD) Impact Medicines sharing a specific physiological effect (e.g., mathbf[Physiological Class] agents)
Resulting Constraint The combination may lead to an additive or synergistic effect on mathbf[a specific body system].

Official labeling also addresses products that may interfere with the drug's absorption, such as specific herbal supplements (e.g., St. John’s Wort) and foods (e.g., grapefruit juice), if they significantly alter systemic exposure. Additionally, constraints for certain patient populations (e.g., those with severe kidney or liver impairment) may be noted, as interactions can be more pronounced in these conditions. These documented statements classify the severity of interactions, guiding healthcare providers on managing co-administered therapies.

Mechanism of Action

How Kez Works: Understanding its Mechanism of Action

Kez acts via selective targeting and modulation of specific signaling pathways within targeted biological systems. Its mechanism spans several distinct yet interconnected mechanistic domains, focusing purely on pharmacodynamic action.

Modulation of Receptor-Mediated Signaling

This core domain involves Kez's primary interaction with specific membrane-bound receptors. Kez functions as an antagonist or agonist for these receptors, thereby initiating or suppressing the early molecular steps that govern cellular communication. This binding directly influences the strength and duration of downstream pathway activation.

Targeted Pathway Cascade Interruption

Kez engages mechanisms that disrupt the subsequent intracellular steps in a signaling cascade. By modifying specific enzymes or second messengers within the pathway, the drug alters the propagation rate and magnitude of molecular signals. This action includes modulation of specific mediator activity.

Physiological Response Modulation

The collective effect across these mechanistic domains is the modification of the net output of targeted signaling. This mechanism alters the resulting physiological output by modulating the systemic consequence of pathway activation and mediator release, thereby influencing pathway responsiveness.

Dosage and Administration Information

How to Use Kez — Administration Guidelines

Kez is a medicine that must be administered only by healthcare professionals in a clinical setting as an intravenous (IV) infusion.

Dosing and Schedule

Administration follows a fixed-interval schedule, with two primary dosing options for adults, and a weight-based dose for pediatric patients:

  • Adults: The recommended dose is either 200 mg every 3 weeks (Q3W) or 400 mg every 6 weeks (Q6W).
  • Pediatric Patients: For specific indications, children 3 years and older are given a weight-based dose of 2 mg/kg (up to a maximum of 200 mg) every 3 weeks.

Administration Procedure

Each dose must be prepared and delivered according to specific procedural steps:

Procedural Step Instruction
Preparation The concentrate requires dilution with 0.9% Sodium Chloride or 5% Dextrose Injection prior to administration. The solution must be mixed by gentle inversion; shaking is forbidden.
Infusion Time The final diluted solution must be administered as a continuous IV infusion over a period of 30 minutes.
Combination Use If the medicine is administered with chemotherapy on the same day, Kez must be infused prior to the chemotherapy.
Missed Dose If a scheduled infusion is missed, the dose should be given as soon as possible, and the original 3-week or 6-week schedule should be resumed from that new date.

Treatment is typically continued until documented disease progression or the onset of unacceptable side effects. For some specific treatment plans, a defined maximum duration, such as 24 months, is specified in clinical guidelines.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Kez


Evidence for use in Seborrhoeic Dermatitis and Pityriasis Capitis (Dandruff)

Kez has been evaluated in research exploring the natural history of symptoms over time in conditions linked to yeast activity on the scalp. Kez was studied in research settings for conditions associated with the Malassezia yeast, specifically seborrhoeic dermatitis and pityriasis capitis (dandruff). Research has primarily examined randomized, controlled trials. These trials monitored outcomes linked to inflammatory or irritative states, focusing on how skin symptoms evolved in the observed populations over defined time intervals. Studies report how symptoms evolved in the observed populations, and findings describe patterns observed in the studies related to measured changes in scaling, flaking, and itching.

Findings related to outcomes capturing phases of heightened symptom activity were mixed across the different studies. Evidence provides context regarding symptom patterns, but research provides insight into short-term changes only. Follow-up durations were limited in most of this research, which means the duration of the reported changes is not fully established.


Evidence for use in Pityriasis Versicolor

Kez was studied in research settings involving individuals with pityriasis versicolor, a condition characterized by fluctuating or episodic manifestations of discolored skin patches. Studies explored research scenarios relevant to this condition. Research examined outcomes reflecting daily functioning or activity level, with findings reporting how symptoms evolved in the observed populations, such as the appearance of the affected skin.

Studies monitored responses over defined time intervals, but data are still emerging, and certainty remains low for comprehensive long-term outcomes. The research provides context but not individual predictions, as results apply only to the populations studied. The available evidence is limited, and findings were observed in some studies, contributing to the broader evidence landscape without providing definitive conclusions.


What is still Uncertain about Kez

Long-term effects are not fully established for Kez across all studied indications. While studies were conducted during periods of increased symptom activity, follow-up durations were often limited in most existing trials. This means there is limited information for long-term outcomes and the durability of measured changes after treatment cessation is not fully characterized.

Data for certain special populations, such as the elderly and children, remain insufficient, and comparative evidence against all other available treatment options is also lacking or uncertain. The research highlights that findings describe group patterns, not personal outcomes, and that studies help show what has been observed so far without providing a complete picture.

Key Studies & References

  1. Ketoconazole (EMA Scientific Discussion / Assessment Report) - Insufficient data in children.
  2. Management of seborrhoeic dermatitis - Clinical Guideline (focusing on limited follow-up and special populations)

Frequently Asked Questions (FAQ)

Common questions about Kez (FAQ)


Q: What is the main reason doctors prescribe Kez?

According to official product information, Kez oral tablets are indicated for the treatment of certain severe fungal infections in the body. The official product information indicates that the medicine is generally reserved for use when alternative antifungal therapies are considered unsuitable.


Q: How quickly does Kez start working after I take it?

Studies and official information indicate that the medicine begins to be absorbed into the bloodstream shortly after taking it. The maximum concentration of the medicine in the blood (peak plasma concentration) is typically observed about 1 to 4 hours after an oral dose. This time frame represents the initial systemic availability of the compound.


Q: What are the inactive ingredients in the Kez pill/tablet?

The official product labeling lists both the active and inactive components of the tablet. While the active ingredient is Ketoconazole, the oral tablet formulation typically contains inactive ingredients such as lactose monohydrate, colloidal silicon dioxide, corn starch, microcrystalline cellulose, povidone, and magnesium stearate.


Q: Does Kez have any specific requirements for monitoring (like blood tests)?

Yes, regulatory documents mandate stringent monitoring due to the potential for serious effects. Regulatory documents note that liver function tests (such as ALT and AST) are typically measured before starting treatment and monitored frequently during therapy, sometimes on a weekly basis. Additionally, ECG monitoring of the heart is often advised because of the potential for the medicine to affect the heart’s electrical activity (known as QTc prolongation).


Q: Does Kez have a Boxed Warning (Black Box Warning)?

Yes, the official prescribing information for the oral tablet formulation of Kez includes a Boxed Warning from the regulator. The Boxed Warning specifically highlights the risk of severe and potentially fatal liver injury (hepatotoxicity) and the risk of QT prolongation (an electrical disturbance of the heart) and other serious drug interactions.

How should Kez be stored and disposed of?

How to Store and Dispose of Kez: Official Regulatory Information

The medicine must be stored strictly according to the conditions specified on the regulatory label to ensure its stability and quality. This typically requires storage at a controlled temperature, such as controlled room temperature or refrigeration between 2 C and 8 C.

Official instructions mandate that the product must be kept in its original, protective container to shield it from environmental factors like moisture and light. Furthermore, any stability period stated for the product after the container is first opened or after the product is mixed must be strictly observed, and the medicine discarded thereafter.

To dispose of unused, expired, or damaged Kez, follow documented procedures for pharmaceutical waste as specified by local regulations. This prevents environmental contamination and misuse. Patients should not flush this medicine down a toilet or pour it down a drain unless explicitly authorized by the labeling or a take-back program.

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

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