Closanasol

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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 Closanasol

Here is a quick reference guide to Clobetasol Propionate:

Property Description
Active Ingredient Clobetasol Propionate
Form Topical (Cream, Ointment, Solution, Foam, Gel)
Pharmacological Class Corticosteroid (Glucocorticoid)
Potency Class Class I (Highest Potency)
Availability Prescription Only (Rx)
Common Use Severe inflammatory skin conditions

Clobetasol Propionate is a potent, prescription-only synthetic corticosteroid classified as a super-high-potency (Class I) agent. It is designed for topical use to rapidly and effectively control the inflammatory and pruritic (itchy) symptoms of various severe skin disorders, such as chronic plaque psoriasis and resistant eczema.

Clinical Recognition and Use

One of the features differentiating this drug is the wide array of available forms, including creams, ointments, and advanced delivery systems like foams and shampoos. This allows healthcare providers to effectively treat different areas, such as the scalp, which can be difficult to manage with standard creams.

It is clinically recognized for its superior efficacy compared to lower-class steroids in treating resistant conditions. This efficacy indicates that the medicine is highly effective in rapidly clearing severe, inflamed skin patches that have not responded to weaker treatments.

However, due to its extreme strength, its use is strictly limited. Continuous treatment is typically limited to a maximum of two consecutive weeks for most conditions to minimize the risk of local side effects, such as skin thinning, and potential systemic absorption.

What side effects are possible with Closanasol?

Possible side effects and safety information

The safety profile of Clobetasol Propionate, a super-high-potency topical corticosteroid, is primarily defined by the risk of local skin reactions and potential systemic absorption, as documented in official regulatory sources.


Adverse Reactions by System and Frequency

Regulatory documents classify possible adverse reactions into categories, with localized skin effects being the most common. These effects include a burning sensation, stinging, and pruritus (itching), which are frequently reported, particularly at the start of treatment. Less common or rare effects include local skin changes such as skin atrophy (thinning), striae (stretch marks), and telangiectasia (spider veins).

System-Organ Class (SOC) Examples of Officially Listed Reactions
Skin and Subcutaneous Tissue Pruritus, dryness, folliculitis, hypopigmentation, striae, skin atrophy.
Endocrine System HPA axis suppression, Cushing's syndrome, hyperglycemia.
Eye Disorders Glaucoma, cataracts.

Systemic Risk and Safety Constraints

The most serious documented risk associated with this super-high-potency agent is Hypothalamic-Pituitary-Adrenal (HPA) axis suppression, or adrenal suppression, which can result from significant systemic absorption. The risk of this and other systemic effects, such as Cushing's syndrome or glaucoma/cataracts, is strongly associated with prolonged treatment duration and application over large surface areas or under occlusive dressings.

Official safety labeling reflects this risk by typically limiting continuous treatment to a maximum of two consecutive weeks for most adult conditions. Pediatric patients are officially noted as being at a greater risk of systemic side effects due to their body composition.

Overdose and Emergency Response

Official Overdose Presentations and Scope

Overdosage is associated with chronic over-application or prolonged use of the highly potent steroid, which can lead to significant systemic absorption. Documented manifestations include reversible Hypothalamic-Pituitary-Adrenal (HPA) axis suppression and the clinical signs of Cushing's syndrome (hypercortisolism). Laboratory findings such as hyperglycemia and glucosuria may be observed. The primary physiological systems affected are the Endocrine and Metabolic systems.

Required Emergency Actions

Immediate medical attention is required after accidental ocular contact with the product. Urgent medical support is also necessary if severe toxicity or signs of glucocorticosteroid insufficiency (adrenal crisis) develop upon cessation or withdrawal. Regulatory guidelines indicate that no specific antidote is known; management is symptomatic and supportive.

Management of documented HPA axis suppression involves the gradual withdrawal of the drug, often by substituting it with a less potent agent. Supplemental systemic corticosteroids are required if adrenal insufficiency is present. Continuous monitoring using tests like the ACTH stimulation test is necessary for evaluation.

Population-Specific Considerations

Pediatric patients are officially noted as being more susceptible to systemic toxicity due to increased absorption, with severe outcomes including linear growth retardation and intracranial hypertension.

Therapeutic Uses of Closanasol

What Clobetasol Propionate Treats: Main Uses and Benefits

Clobetasol propionate is a super-high-potency agent commonly used for the management of conditions presenting with systemic or localized discomfort where strong supportive symptom management is appropriate.

This agent is considered relevant within therapeutic domains involving inflammatory or irritative states. It is used for managing the most severe and resistant forms of corticosteroid-responsive dermatoses, including moderate-to-severe plaque psoriasis and recurrent atopic dermatitis (eczema). The core role is addressing symptom clusters that may become intense or disruptive (inflammation and itching).

The medication may assist with easing symptoms of significant redness, swelling, and particularly the symptoms that create noticeable physiological strain (pruritus) that characterize acute flare-ups. This support is generally provided when symptoms intensify and supportive relief is needed.

This focused relief contributes to easing the overall symptom load and may help patients cope more steadily with symptom fluctuations related to the difficult manifestations of the disease.

It is also relevant for addressing physical manifestations of chronic disease, such as the development of thick, crusty, or scaly patches (hyperkeratosis), often utilizing specialized formulations for targeted areas like the scalp. This may assist with maintaining functional stability when symptoms interfere with routine activities.

Quick Fact: Relief for Severe Symptoms
Contributes to easing the overall symptom load during acute episodes of severe itching and inflammation.

Regulatory References

  1. NIH DailyMed Label for Clobetasol Propionate Cream

Eligibility and Restrictions for Use

Clobetasol Propionate is a highly potent topical corticosteroid, and its use is subject to strict limitations outlined in regulatory labeling.

Populations Not Eligible (Contraindications)

Clobetasol Propionate is contraindicated and must not be used by patients with a history of hypersensitivity to the drug or any component of the preparation. Use is also formally prohibited in the presence of certain skin conditions, including rosacea, perioral dermatitis, and untreated cutaneous infections (viral, fungal, or tubercular).

Restricted and Non-Recommended Use

Population/Condition Eligibility Status (Regulatory Basis)
Pediatric Patients Not recommended for children under 12 years of age for most formulations (e.g., cream, ointment, gel). Use in children is generally associated with a greater risk of systemic toxicity and HPA axis suppression.
Application Sites Not for use on the face, groin, or axillae (underarms) or if skin atrophy is present at the site of treatment.
Pregnancy/Lactation Classified as Pregnancy Category C; use is advised only if the potential benefit outweighs the potential risk to the fetus. Caution is advised for nursing mothers, as it is not known if the drug is excreted in human milk.

Treatment must be limited to the minimum effective duration (often 2 consecutive weeks maximum) and the total dosage generally must not exceed 50 grams per week to minimize the risk of systemic absorption and associated adverse effects.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Clobetasol Propionate is primarily related to its systemic absorption and subsequent metabolism, as documented in authoritative regulatory sources.

Interacting Product Category Official Interaction Constraint
Strong CYP3A4 Inhibitors Co-administered drugs that inhibit the CYP3A4 enzyme (e.g., ritonavir, itraconazole) can decrease the metabolism of corticosteroids. This inhibition leads to an increased systemic exposure to the corticosteroid.
Other Corticosteroid Products The simultaneous use of Clobetasol Propionate with any other corticosteroid-containing products (whether oral or topical) should be managed carefully, as this combination increases the total systemic corticosteroid load.

Summary of Official Interaction Statements

  • Enzyme-Mediated Effects: The use of strong CYP3A4 inhibitors has been shown to slow down the body's breakdown of corticosteroids, thereby increasing the amount of the drug circulating in the system. The potential clinical significance of this effect is related to the specific dose, application route, and the potency of the inhibitor involved.
  • Total Corticosteroid Load: Regulatory documents advise that using more than one product containing a corticosteroid at the same time may result in an unsafe build-up of the total amount of corticosteroid absorbed by the body. This is a crucial consideration for preventing excessive systemic effects.

The interaction constraints are formally structured around two primary concerns: avoiding the concurrent use of multiple corticosteroid products and managing the co-administration of strong metabolic inhibitors. This framing addresses all documented pathways that could increase systemic exposure to the drug.

Mechanism of Action

How Clobetasol Propionate Works

Clobetasol Propionate is a synthetic corticosteroid that acts as an agonist by binding to the intracellular Glucocorticoid Receptor (GR) complex found within target cells. This interaction causes the receptor complex to dissociate and translocate into the cell nucleus, initiating its primary pharmacodynamic action through the modulation of gene expression.

Once inside the nucleus, the drug-receptor complex interferes with gene transcription, primarily by inhibiting the activity of pro-inflammatory transcription factors, such as NF-kappaB. This inhibitory action limits the cellular synthesis of various inflammatory proteins, including specific cytokines and other signaling molecules, thereby modifying early molecular steps in the inflammatory cascade.

This decreased mediator synthesis subsequently limits the migration and activity of local immune cells and induces vasoconstriction (narrowing of blood vessels). The resulting cascade contributes to alterations in pathway activity that lead to the physiological consequences of reduced capillary permeability and lowered local immune cell recruitment.

Dosage and Administration Information

How to Use Clobetasol Propionate

Clobetasol Propionate is a super-high-potency corticosteroid designated for topical use only and must be administered strictly according to prescribing information. The medication is available in 0.05% strength across various topical forms, including cream, ointment, solution, and shampoo.

Standard Administration Protocol

The standard regimen involves applying a thin layer of the prescribed formulation to the affected skin areas, typically twice daily (e.g., morning and evening). For formulations like the shampoo, the application is generally limited to once daily to the dry scalp, followed by a specified contact time (e.g., 15 minutes) before rinsing.

Due to its strength, guidelines establish clear limits on both the amount and duration of use:

  • Maximum Quantity: The total amount applied should not exceed 50 grams per week (or 50 mL for solution/liquid forms).
  • Duration Limit: Continuous treatment is typically restricted to a maximum of two consecutive weeks for most responsive skin conditions. Use for localized plaque psoriasis may be extended up to four weeks in some protocols.

Procedural Constraints

To ensure proper use, the product is applied to the skin gently until it disappears. The medication must not be used on the face, groin, or armpits. Furthermore, the treated area should not be covered or bandaged (occlusion) unless explicitly instructed, as this can increase systemic absorption. Hands should be washed thoroughly after application, unless the hands are the area being treated. For most formulations, use is not recommended for children under 12 years of age.

Recent Clinical Evidence

Research evidence / Overview of studies for Clobetasol Propionate

This overview summarizes the structure of the evidence record for Clobetasol Propionate, outlining the types of studies that have been conducted, the conditions they examined, and the aspects that remain uncertain. This information reflects group patterns observed in research and does not determine whether an individual will respond similarly.


Evidence for Use in Plaque Psoriasis

The evidence record exploring Clobetasol Propionate for moderate-to-severe plaque psoriasis consists primarily of short-term randomized controlled trials (RCTs) and systematic reviews. These studies were conducted during periods of increased symptom activity and was evaluated in comparisons against a non-active vehicle or other active corticosteroid treatments. The main metrics researchers examined included outcomes related to physical discomfort, measured by investigator assessment scales, focusing on changes in scaling, redness (erythema), and plaque thickness.

Findings describe patterns observed in the studies over the short, defined time intervals (typically two to four weeks), where research highlights changes measured in localized symptom intensity. Data show patterns related to a difference when was evaluated in a comparison against the non-active vehicle control.

The research record is limited by the short duration of continuous application protocols. Research has explored whether the drug can be used intermittently over extended periods, but long-term effects are not fully established compared to the initial short-term application.


Evidence for Use in Atopic Dermatitis and Corticosteroid-Responsive Dermatoses

The research for severe forms of corticosteroid-responsive dermatoses, including atopic dermatitis (eczema), was evaluated in short-term randomized controlled trials. Studies examined patient outcomes linked to inflammatory or irritative states, focusing on symptoms such as inflammation and intense itching (pruritus). Specialized research also explored the drug's potential for systemic absorption by monitoring the Hypothalamic-Pituitary-Adrenal (HPA) axis.

Long-term data on repeated or continuous treatment for Atopic Dermatitis flares are generally not available. Studies in younger pediatric populations often focus on systemic exposure measures (HPA axis) alongside clinical symptom assessment, but data for certain groups remain insufficient for providing comprehensive long-term insight.


What Research Gaps and Uncertainties Exist

While supported by high-quality short-term data, the evidence base has several notable gaps that relate to long-term management. Long-term effects are not fully established, particularly concerning the recurrence of conditions and the necessity of repeated treatment. Subgroup findings are uncertain for specific comorbidities or populations not well represented in the primary trials. Research provides context but does not determine whether an individual will respond similarly, and certainty remains low regarding outcomes after extended periods.

Key Studies & References

  1. Clobetasol Propionate Ointment USP, 0.05% Dailymed Label (HPA Axis and Pediatric Use)

Frequently Asked Questions (FAQ)

Common questions about Clobetasol Propionate (FAQ)


Q: What's the difference between Clobetasol Propionate and hydrocortisone cream?

Clobetasol Propionate is classified by regulatory agencies as a super-high potency (Class I) topical corticosteroid. This means it is among the highest potency prescription steroids available. Hydrocortisone, in contrast, is typically classified as a low-potency steroid. Due to its strength, Clobetasol Propionate is primarily reserved for severe or resistant skin conditions for limited periods.


Q: Can children use Clobetasol Propionate, and is it a lower strength?

Official product information states that use is generally not recommended in children under 12 years of age for most 0.05% formulations. This is due to the greater risk of systemic toxicity (adrenal gland suppression) in pediatric patients. While specific lower-strength formulations may exist, the most common strength is 0.05%.


Q: Why do doctors say Clobetasol Propionate should not be used on the face?

Official labeling advises against use on sensitive areas like the face, groin, or armpits. The skin in these areas is more prone to local adverse effects, such as skin thinning (atrophy), and the potential for increased systemic absorption is higher. This constraint is in place to minimize safety risks.


Q: What kind of skin conditions does Clobetasol Propionate treat besides eczema and psoriasis?

According to the official product labeling, Clobetasol Propionate is indicated for the relief of inflammatory and itchy symptoms of various severe corticosteroid-responsive dermatoses. This is a broad category encompassing various inflammatory skin diseases that respond to potent steroid treatment.


Q: Does alcohol consumption affect how Clobetasol Propionate works?

Regulatory documents concerning drug interactions primarily focus on the co-administration of strong CYP3A4 enzyme inhibitors and other corticosteroid-containing products. There are no specific interactions or warnings cited in these official sources concerning the use of alcohol while undergoing treatment with topical Clobetasol Propionate.


Q: Can Clobetasol Propionate be used for everyday dry skin?

No. Official product information indicates that this medicine is intended solely for the specific severe inflammatory and itchy skin conditions for which it was prescribed. It is not intended for the treatment of non-inflammatory conditions like routine or everyday dry skin.


Q: Are there any common withdrawal symptoms after stopping Clobetasol Propionate?

Systemic absorption can infrequently lead to reversible HPA axis suppression. If this occurs, symptoms of glucocorticosteroid insufficiency, or 'steroid withdrawal,' may be experienced upon discontinuation, which may require supplemental systemic corticosteroids, as noted in official safety information.


Q: Is it normal to feel a slight burning sensation when first applying the cream?

Regulatory documents list a burning sensation as one of the most frequently reported local adverse events during clinical trials. This effect may be particularly noticeable at the start of treatment, along with stinging or itching.


Q: What should I do if I accidentally apply Clobetasol Propionate to healthy skin?

Official instructions advise patients to apply a thin layer only to the affected skin areas. Using the medication on healthy skin or over large surface areas should be avoided, as this can increase the risk of systemic side effects.


Q: Is Clobetasol Propionate used to treat skin discoloration?

Clobetasol Propionate is not prescribed for the purpose of treating skin discoloration. However, one of the potential adverse local effects listed in regulatory documents is hypopigmentation, which is the lightening of the skin color in the area where the product is applied.


Q: Does using a thick layer of Clobetasol Propionate make it work faster?

Official instructions specify applying only a thin layer. Using a thick layer or more than directed is generally associated with an increased risk of systemic side effects due to increased absorption, not necessarily a faster effect.


Q: What is the longest time Clobetasol Propionate is typically used for?

For most conditions, regulatory guidelines typically restrict continuous treatment to a maximum of two consecutive weeks. However, for certain conditions like moderate-to-severe plaque psoriasis, some formulations may be used for up to four consecutive weeks, according to some regulatory protocols.


Q: Are there different forms of Clobetasol Propionate, like ointment vs. cream?

Yes, Clobetasol Propionate is available in various topical forms to suit different application needs. These formulations include a cream, an ointment, a solution, and a foam.


Q: Can Clobetasol Propionate affect blood sugar levels?

Official safety information indicates that because Clobetasol Propionate can be absorbed systemically (into the body), it has the potential to cause elevations in blood sugar (hyperglycemia). This effect is also associated with the risk of glucose appearing in the urine (glucosuria).


Q: Can Clobetasol Propionate make acne worse in some cases?

Acne-like rashes, known as acneiform eruptions, are listed in regulatory documents as a possible local adverse reaction that may occur with the use of topical corticosteroids.


Q: Is Clobetasol Propionate available in different concentrations?

The most common concentration of Clobetasol Propionate is 0.05%. While this is the standard strength for most formulations, some specialized product forms may be available at a lower concentration, such as 0.025%.


Q: Can Clobetasol Propionate be used on mucous membranes?

No. Regulatory product labeling specifies that the medication is for topical dermatologic use only. It is explicitly stated that it is not for ophthalmic (eye), oral, or intravaginal use.


Q: What types of allergic reactions can Clobetasol Propionate cause?

Official documents list allergic contact dermatitis as a potential adverse reaction. This is a localized skin reaction that may sometimes present as a failure of the treated skin condition to heal or a worsening of the skin irritation.


Q: Is the foam version of Clobetasol Propionate as strong as the ointment?

All formulations of Clobetasol Propionate at the 0.05% strength—including the cream, ointment, solution, and foam—are generally categorized as super-high potency (Class I) corticosteroids.


Q: Does Clobetasol Propionate help with the redness as well as the scaling?

Yes. The drug’s anti-inflammatory properties are intended to relieve the manifestations of inflammation. This means the medicine is indicated to help reduce both the redness (erythema) and the intense itching (pruritus) associated with the treated skin condition.


Q: How do doctors monitor for systemic side effects when Clobetasol Propionate is used?

For patients using the medication over large areas or for extended periods, doctors may periodically monitor for potential HPA axis suppression, which is a systemic side effect. Monitoring may be done using specific laboratory tests, such as the ACTH stimulation test or the A.M. plasma cortisol test.


Q: What ingredients are in the base cream or ointment with Clobetasol Propionate?

The official product labeling lists all inactive ingredients used in the base formulation. These ingredients vary by product form (cream, ointment, foam, etc.), and they are used to ensure the proper delivery and stability of the active drug.


Q: What makes Clobetasol Propionate different from medium-potency steroids?

Clobetasol Propionate is classified as a super-high potency (Class I) topical corticosteroid. This places it at the highest end of the classification system for steroid strength, making it significantly more potent than medium-potency steroids.

How should Closanasol be stored and disposed of?

Storage and Disposal of Clobetasol Propionate

Clobetasol propionate must be stored strictly according to regulatory mandates to ensure product stability and safety.

Official Storage Requirements

The product must be stored at Controlled Room Temperature between 68°F and 77°F (20°C and 25°C). It is mandatory to store the medicine out of the sight and reach of children.

Storage environments to avoid include freezing, and certain cream formulations must also avoid refrigeration. Flammable aerosol forms (foam/spray) must not be exposed to heat above 120°F (49°C); these containers must not be punctured or incinerated.

Disposal Instructions

Unused or expired clobetasol propionate and its containers must be disposed of according to local regulations. Regulatory guidance advises against discarding the medicine by throwing it into household trash or flushing it down a toilet or sink.

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

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