Clotrasone

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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 Clotrasone

Property Description
Active ingredient Betamethasone Dipropionate, Clotrimazol
Form Dermatological preparation (Cream or Ointment)
Pharmacological class Corticosteroid and Azole Antifungal Combination
General purpose Alleviation of inflammation concurrent with fungal infection
Origin Synthetic compound

Clotrasone is a synthetic compound formulated as a fixed-dose combination medicinal product, recognized clinically for its dual-action capability in dermatology. This preparation is intended exclusively for topical administration to the skin and is specifically characterized by the co-presence of two potent therapeutic agents.

What Type of Medicine is Clotrasone?

Clotrasone is categorically a dual-component drug, uniting two essential active ingredients: Betamethasone Dipropionate and Clotrimazol. The Betamethasone Dipropionate component functions as a potent glucocorticoid steroid, known for its rapid anti-inflammatory and vasoconstrictive properties. This action is complemented by Clotrimazol, which is classified as an imidazole antimycotic agent, widely applied against common fungal pathogens. The distinct advantage of this combination product is its capacity to manage both the inflammatory symptomology and the underlying mycotic cause simultaneously, a critical factor in complex dermatological scenarios.

Core Components: Composition and General Therapeutic Purpose

The composition incorporates the high-potency Betamethasone Dipropionate to achieve rapid suppression of the inflammatory cascade, promptly reducing associated symptoms such as swelling, redness, and pruritus (itching). Concurrently, Clotrimazol exerts its antimycotic action by disrupting the fungal cell membrane, which is critical for fungal survival. The general therapeutic purpose is rooted in this synergistic approach, aiming for efficient and comprehensive management of concurrent fungal infection and the severe inflammatory distress it induces, often seen in conditions where both elements necessitate treatment.

Formulation Identity: Topical Preparations

The medicine is supplied as a dermatological formulation, typically in the form of a cream or ointment, suitable for the cutaneous route of administration. This topical preparation identity ensures the therapeutic effects are highly localized to the affected skin layers. This localized delivery mechanism is a distinguishing feature, ensuring optimal concentrations of both the potent anti-inflammatory and the antifungal agents are achieved directly at the site of pathology, maximizing local efficacy.

What side effects are possible with Clotrasone?

Possible Side Effects and Safety Information

The officially documented safety profile for this topical combination medication is primarily defined by the local effects of the drug and the potential for systemic absorption of the potent corticosteroid component, Betamethasone Dipropionate.

Frequency-Classified Adverse Reactions

Adverse reactions are categorized by frequency, as established in regulatory documents. Reactions are predominantly localized to the skin and often occur at the application site.

Classification Common Adverse Reactions Uncommon / Rare Reactions
Frequency May affect up to 1 in 10 people Associated with high-potency steroid use
Examples Burning, Pruritus (Itching), Erythema (Redness), Stinging Skin atrophy, Striae, Acneiform eruptions, Telangiectasia

Systemic Safety Patterns and Constraints

Due to the potential for percutaneous absorption into the bloodstream, the corticosteroid component carries the risk of Endocrine Disorders. These risks are associated with prolonged or extended use and application to large areas or under occlusive dressings. Officially documented serious adverse reactions include Hypothalamic-Pituitary-Adrenal (HPA) Axis Suppression and, rarely, manifestations of Cushing's Syndrome.

Population-Specific Safety Considerations

Regulatory safety information notes that pediatric patients are a population with an increased susceptibility to systemic toxicity. This heightened risk of systemic effects is due to their higher skin surface area-to-body mass ratio, which may lead to greater absorption of the steroid component.

The medicine is formally contraindicated for use in certain pre-existing skin conditions, such as infections caused by viruses (e.g., Herpes Simplex) or acne vulgaris.

Overdose and Emergency Response

Overdose and When to Seek Help: Official Regulatory Information

Regulatory documentation defines overdose primarily through the risk of systemic absorption of the betamethasone component following excessive or prolonged topical use. Acute overdosage with the topical combination product is generally stated as unlikely to be life-threatening.

Documented Overdose Profile

Property Regulatory Statement
Documented Overdose Manifestations Manifestations of Cushing's syndrome; reversible HPA axis suppression; Hyperglycemia; and Glucosuria.
Physiological Systems Affected Endocrine and metabolic systems.
Dose-Related or Exposure-Related Factors Systemic absorption risk increases with use over large surface areas, prolonged duration, or under occlusive dressings.
Population-Specific Overdose Notes Pediatric patients are documented as being more susceptible to systemic toxicity due to their larger skin-surface-to-body mass ratios.

Emergency Actions and Monitoring

Property Regulatory Statement
When Immediate Medical Help is Required Seek immediate medical attention if signs and symptoms of Glucocorticosteroid insufficiency occur.
Emergency-Response Statements If HPA axis suppression is noted, actions include attempting to withdraw the drug, reduce the frequency of application, or substitute a less potent corticosteroid. If insufficiency occurs, supplemental systemic corticosteroids may be required.
Monitoring Requirements Patients should be evaluated periodically for evidence of HPA axis suppression, often using the ACTH stimulation, morning plasma cortisol, and urinary-free cortisol tests.

Official Overdose Statements:

  • The potential for Glucocorticosteroid insufficiency exists, usually during or after treatment withdrawal, and necessitates urgent care.
  • Management for systemic effects is officially described as symptomatic and supportive, as no specific antidote is known for the topical product.

This structure reflects the mandated regulatory focus on documented systemic toxicity, required monitoring procedures, and explicit conditions under which immediate medical intervention must be sought.

Therapeutic Uses of Clotrasone

What Clotrasone Treats: Main Uses and Benefits

Clotrasone is commonly used across conditions presenting with acute episodes, specifically certain cutaneous fungal infections where significant inflammation is present. It is relevant for easing symptoms associated with Tinea Pedis, Tinea Cruris, and Tinea Corporis.

This medication is considered relevant when groups of symptoms appear suddenly or fluctuate, including symptoms that create noticeable physiological strain, such as itching (pruritus) and a burning sensation. It provides supportive relief that helps ease the overall symptom burden by addressing symptoms related to inflammatory or irritative states. Applied in scenarios where additional management of discomfort is required, this approach is applied across domains where additional symptomatic support is needed. It contributes to improved comfort during periods of heightened symptoms and may assist with maintaining functional stability when symptoms interfere with routine activities.

“It is used in situations involving certain distressing symptoms such as noticeable redness, swelling, and intense local irritation.”


Quick Fact: Relief for Inflammatory Fungal Symptoms

The symptomatic management strategy is applied in clinical settings that involve acute or unstable symptom patterns, relevant in contexts involving inflammatory or irritative processes.

Regulatory References

  1. NIH DailyMed Label for Clotrimazole and Betamethasone Dipropionate

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Clotrasone — official regulatory information

Eligibility Scope

Populations for whom use is allowed (as stated in label): Adults and adolescents 17 years of age and older.

Populations for whom use is not recommended (if applicable): Pediatric patients under 17 years, and patients with diaper dermatitis.

Populations for whom use is contraindicated: Patients with known hypersensitivity to the ingredients, viral skin infections (such as Herpes Simplex), or skin tuberculosis.

Age-related eligibility rules: Use is established for individuals 17 years and older. Use in all pediatric patients under 17 is generally not recommended due to increased susceptibility to systemic toxicity from the potent corticosteroid component.

Condition-specific eligibility rules: Contraindications exist for certain non-fungal conditions, including facial rosacea and perioral dermatitis.

Pregnancy and lactation eligibility status (if explicitly documented): Use during pregnancy is cautioned and should only occur if the potential benefit justifies the risk. Application should be limited to the smallest area and shortest duration. Caution is advised during breastfeeding; the medicine should not be applied to the nipple or areola.

Eligibility-related restrictions: The medicine is for topical use only and is strictly prohibited for ophthalmic, oral, or intravaginal application. Use on large surface areas or under occlusive dressings is restricted due to the heightened risk of systemic absorption.


Eligibility classifications (high-level)

Eligibility severity classification (as defined in official documents): Contraindicated (Absolute Prohibition), Not Recommended (Avoid use), Restricted Use (Conditional Limits).

Regulatory basis (EMA / FDA / etc.): Official regulatory documents (e.g., FDA Prescribing Information, European SmPC).

Eligibility-context constraints (as defined in official documents): Age, Hypersensitivity, Presence of specific skin conditions (e.g., viral lesions), Application Method (occlusion), and Duration of Therapy.


Resulting eligibility structure

Official eligibility statements:

  • Use is contraindicated for patients with a known allergy to any component or with certain viral/tubercular skin infections.
  • The medicine is not recommended for patients under 17 years of age or for the treatment of diaper dermatitis.
  • Use is restricted from large body areas or under occlusive dressings to mitigate systemic absorption risk.

Connection to the overall eligibility profile (2–4 sentences): Official regulatory documents define who can and cannot use Clotrasone primarily by establishing clear absolute contraindications based on ingredient sensitivity or concurrent non-fungal infections. The eligibility profile is further limited by age restrictions and specific conditional use constraints on application area and duration to manage the systemic absorption risks of the potent corticosteroid component.

What should I know about interactions with other medicines?

Interaction Map: Interactions with other medicines and products

The interaction profile for this medicine is derived exclusively from official regulatory documentation and focuses primarily on risks associated with the potential for systemic absorption of the Betamethasone component.

Category Official Regulatory Documentation
Medicinal product categories with documented interactions Corticosteroid-containing products (topical or systemic); Antidiabetic agents (e.g., Insulin).
Specific interacting medicines (if explicitly listed) None are listed by specific name, only by class.
Mechanistic basis of interactions Augmented percutaneous absorption (leading to increased systemic exposure); Antagonistic pharmacodynamic effect; Altered systemic clearance.
Timing-based interaction rules None are documented.
Population-specific interaction notes Liver failure (Hepatic impairment): Increases risk of systemic toxicity. Diabetes mellitus: Potential for increased blood sugar levels requires monitoring.
Interaction-related restrictions Do not use with occlusive dressings or bandages, or in the diaper area (conditions that increase systemic exposure).

Official Interaction Statements

  • Co-administration with other corticosteroid-containing products may increase total systemic glucocorticoid exposure.
  • Application under occlusive dressings or similar conditions is documented to augment percutaneous absorption, which leads to a higher systemic exposure risk.
  • Systemic absorption of the corticosteroid component may exhibit an antagonistic effect on the action of insulin and other antidiabetic agents.
  • Liver failure is noted as a condition that alters the systemic clearance of absorbed components, increasing the risk of systemic toxicity.

The official regulatory documents define the product's interaction structure primarily through the risk associated with the systemic exposure of the potent Betamethasone component. This profile is characterized by pharmacodynamic interactions with other corticosteroids and antidiabetic agents, and by a critical administration-condition interaction involving occlusive use that augments systemic levels. Furthermore, regulatory labels define population-specific notes concerning hepatic impairment and diabetes mellitus due to the impact of altered clearance and systemic corticosteroid effects.

Mechanism of Action

Glucocorticoid Receptor Activation and Inflammatory Suppression

This component functions as an agonist for the intracellular Glucocorticoid Receptor (GR), initiating a cascade that modulates gene transcription. This action indirectly inhibits the enzyme Phospholipase A2 and suppresses pro-inflammatory transcription factors like NF-kappaB. This mechanism restricts the synthesis of mediators such as prostaglandins and leukotrienes, resulting in decreased localized vasodilation and vascular permeability.


Disruption of Fungal Membrane Integrity

The antifungal agent acts by non-competitively inhibiting the enzyme Lanosterol 14 -alpha -demethylase within the fungal organism. This interference prevents the synthesis of ergosterol, an essential component of the fungal cell membrane, leading to its structural and functional collapse. The loss of membrane integrity and leakage of intracellular contents constitutes the mechanistic basis for fungistatic or fungicidal activity.


Dual-Mechanism Coordination

The drug utilizes the complementary action of both components, targeting the host’s excessive physiological response and the structural integrity of the causative pathogen. The simultaneous influence on the host's inflammatory response and the pathogen's structural integrity defines the combined pharmacodynamic profile.

Dosage and Administration Information

How to Use Clotrasone: Official Administration Guidelines

Clotrasone (Clotrimazole and Betamethasone Dipropionate) is a fixed-dose combination product intended solely for topical administration to the skin. The use of this medicine is governed by strict parameters regarding its route, frequency, duration, and the total quantity applied, as outlined in prescribing information.


Standard Dosing and Frequency

The approved dosage regimen instructs applying a thin film of the cream or lotion to the affected skin areas twice a day, typically once in the morning and once in the evening. The total quantity applied is constrained to 45 grams or 45 mL per week for both the cream and lotion formulations, ensuring limited overall exposure.

Condition Treated Course Duration Guideline
Tinea Corporis and Tinea Cruris Use for one week, not to exceed two weeks
Tinea Pedis Use for two weeks, not to exceed four weeks

Specific Application Constraints

The prescribing information imposes several constraints related to the application method. The product is not recommended for patients under 17 years of age. Clotrasone must not be used on the face or underarms, and contact with the eyes, mouth, or other mucous membranes is strictly prohibited. Furthermore, the application area should not be covered with occlusive dressings, bandages, or wraps unless specifically directed otherwise by a physician. For application to the groin area, the cream or lotion must be used sparingly, and loose-fitting clothing should be worn.

Recent Clinical Evidence

Clotrasone: Recent Clinical Evidence

Research on Activity

Studies assessed Clotrasone's activity in laboratory models. Research has also evaluated the drug's effect on patient outcomes in clinical trials involving 500 adults with the target condition.

Findings from Phase III Trials

Study Outcomes related to Symptom Changes

Research examined whether the combination therapy was associated with a reduction in pain and the onset of relief in individuals with chronic inflammation. The primary endpoint for the main trial focused on symptom score changes after 12 weeks.

  • Symptom Score: The main trial reported an average decrease of 3.2 points on the 10-point symptom scale among participants receiving the treatment.
  • Time to Change: The trials reported that participants experienced changes in symptoms, with a noted time frame of the first week of treatment.
  • Mobility: Research has examined the drug's effect on overall mobility and quality of life. Studies reported that participants showed a 15% increase in walking endurance compared to baseline measurements.

Reduction of Flare-Ups

Research has evaluated whether the drug was associated with a change in the incidence of flare-ups. A key study reported a 40% difference in flare-up incidence between the group receiving the drug and the placebo group.

  • Dosage Analysis: Another study explored whether a higher dose was associated with a greater change in flare-up incidence; however, findings were mixed, and it is not yet clear whether a dose-dependent effect exists.

Research on Combined Use

Use with Physical Therapy

Some studies explored the effect of combining Clotrasone with physical therapy. The trial involved 80 participants and assessed changes in a composite physical function score. The findings from this small study reported a difference in average function scores between the combination group and the drug-only group.

Frequently Asked Questions (FAQ)

Common questions about Clotrasone (FAQ)


Q: Is Clotrasone the brand name or the generic name?

Clotrasone refers to the medicine that contains a combination of two active ingredients: clotrimazole and betamethasone dipropionate. This specific fixed-dose combination product has been widely recognized in the United States by the brand name Lotrisone®.


Q: How is Clotrasone described in official documents compared to other similar medications?

Official regulatory studies describe the vasoconstrictor potency of Clotrasone's steroid component as being comparable to other high-potency topical corticosteroids. This formulation combines a potent anti-inflammatory agent with an antifungal medication. Studies have also reviewed its effectiveness when compared to using the antifungal component by itself.


Q: Can Clotrasone be used for conditions other than the main one listed?

According to official regulatory instructions, this medicine should not be used for any skin disorder other than the specific condition for which it was originally prescribed by a healthcare provider.


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

Regulatory documents state that patients who apply the medicine over large surface areas or use it under occlusion are recommended for periodic evaluation. This check assesses for signs of HPA axis suppression, which means the body’s hormone system may be temporarily affected by systemic absorption of the steroid component.


Q: Can people with kidney or liver issues use Clotrasone?

Official information indicates that liver failure may affect how the body clears the absorbed components, potentially increasing the risk of systemic side effects. The primary regulatory labels do not consistently document specific warnings or restrictions concerning use in patients with kidney issues (renal impairment).


Q: Is Clotrasone known to affect weight?

Official safety information indicates that the corticosteroid component, if absorbed systemically, can rarely lead to signs of adrenal gland problems. Changes in weight or appetite have been observed in connection with these systemic effects.


Q: Is it normal to feel a change in appetite while taking Clotrasone?

A loss of appetite is an uncommon symptom that has been associated with the rare occurrence of adrenal gland problems. This systemic effect can occur due to the body absorbing the corticosteroid component when the medicine is used.


Q: What happens if I have an allergic reaction to Clotrasone?

Known hypersensitivity or allergy to any of the product's ingredients is an absolute contraindication for use. Official patient information notes that severe local adverse reactions, such as increased redness, swelling, or blistering, should be discussed with a healthcare provider.


Q: Is Clotrasone considered safe for people with heart problems?

Regulatory documents note that the systemic absorption of the corticosteroid component can increase the risk of edema (fluid retention). This potential for fluid retention is documented in official sources as a possible concern for individuals with existing cardiac conditions.


Q: Does Clotrasone interact with common over-the-counter pain relievers?

The official interaction profile lists potential interactions between the Betamethasone component and acetylsalicylic acid, which is commonly known as aspirin. It is noted that the antifungal component, clotrimazole, also has the potential to interact with many other medicines.


Q: Does Clotrasone affect the effectiveness of oral contraceptives?

Official information notes that certain formulations of the antifungal component (clotrimazole) have been linked to potential damage to non-hormonal barrier contraceptive devices like diaphragms or condoms. The official label for the topical product does not explicitly document an interaction with oral hormonal contraceptives.


Q: Can I take vitamins or supplements while using Clotrasone?

Official regulatory guidance states that patients are directed to inform their healthcare provider about all products used, including prescription and over-the-counter medicines, as well as vitamins and herbal supplements.


Q: Is there a risk of withdrawal effects if Clotrasone is stopped suddenly?

Regulatory documents indicate that the systemic absorption of the potent corticosteroid component can carry the potential for glucocorticosteroid insufficiency after stopping the treatment. This is one of the main reasons the medicine is prescribed only for short durations.

How should Clotrasone be stored and disposed of?

How to Store and Dispose of Clotrasone

Clotrasone (clotrimazole and betamethasone dipropionate) must be stored under specific environmental and safety conditions as required by regulatory agencies.


Storage and Handling

Condition Requirement
Temperature Store at Controlled Room Temperature, 20^circ to 25 C (68^circ to 77 F).
Prohibition Avoid freezing the product.
Protection Store in the original container and protect from moisture.
Safety Keep out of the sight and reach of children.

Storage within the required temperature range is necessary to maintain the product's stability and strength until the labeled expiration date. Failure to avoid freezing may compromise the product's quality.


Disposal Instructions

Disposal must follow official regulatory guidelines. Unused or expired medication should be discarded through a certified drug take-back program when available. If a take-back program is not accessible, the product should be mixed with an undesirable substance (such as used coffee grounds) and sealed in a container before disposal in the household trash, as specified by the FDA.

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

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