Canasone C.B.

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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 Canasone C.B.

Property Description
Active ingredient Betamethasone Dipropionate, Clotrimazol
Form Cream, Ointment (Topical formulation)
Pharmacological class Corticosteroid and Antifungal Combination
Common use Addressing inflammatory skin conditions complicated by fungal infection
Origin Synthetic (Both active compounds)

What Type of Medicine is Canasone C.B. and What Does it Contain?

Canasone C.B. is defined as a fixed-dose pharmaceutical preparation intended for cutaneous (topical) application, and it is typically available as a cream or an ointment base. It is officially classified as a Corticosteroid and Antifungal Combination product, a specialized category designed for dual-action treatment. The product features two primary synthetic agents: Betamethasone Dipropionate and Clotrimazol.

Composition: Understanding Betamethasone Dipropionate and Clotrimazol

The composition of Canasone C.B. is crucial to its function. Betamethasone Dipropionate is a potent glucocorticoid noted for its swift anti-inflammatory and antipruritic effects. This component is responsible for mitigating local symptoms such as redness and swelling. The second active agent, Clotrimazol, is an established azole antifungal derivative. This broad-spectrum agent prevents fungal growth by disrupting the pathogen's cellular structure.

General Purpose: Why is a Dual-Action Formula Used?

The primary rationale for utilizing this dual-action formula is to provide comprehensive care against mixed dermatological conditions. The formulation is generally intended for relief in cases where the irritating physical signs, such as severe itching and swelling, occur alongside the proliferation of a fungal pathogen. The simultaneous delivery of a potent anti-inflammatory and an effective antifungal agent allows for efficient management of conditions where separate treatments might otherwise be required. This approach makes the preparation a comprehensive solution specifically positioned for complex skin irritation and infection scenarios.

Regulatory References

  1. FDA DailyMed: Clotrimazole and Betamethasone Dipropionate Cream

What side effects are possible with Canasone C.B.?

Possible Side Effects and Safety Information

This section outlines possible adverse reactions and safety information documented in official government regulatory documents for Canasone C.B. The documented risks relate primarily to the skin and the potential for systemic absorption of the corticosteroid component.

Frequency-Classified Adverse Reactions

Adverse reactions observed in clinical trials and post-marketing reports are classified by frequency:

  • Common Reactions: Paresthesia (a tingling or prickling sensation).
  • Uncommon Reactions: Rash, swelling (edema), worsening of symptoms, and secondary infections.
  • Frequency Not Known: This category includes reports of ocular side effects and severe systemic effects, primarily from post-marketing surveillance.

Clinically Significant and Systemic Safety Concerns

The primary safety concern is the potential for Systemic Corticosteroid Effects due to absorption of the active ingredient through the skin, which may lead to:

  • Hypothalamic-Pituitary-Adrenal (HPA) Axis Suppression: A reversible condition where the body’s natural steroid production is suppressed.
  • Cushing’s Syndrome and Adrenal Insufficiency.
  • Serious Ophthalmic Reactions: Reports include cataracts and glaucoma following inadvertent contact with the eyes.

Local Skin Reactions are also documented and include skin thinning (atrophy), visible streaks (striae), changes in pigmentation, dryness, and folliculitis. These are often linked to greater exposure.

Safety Considerations for Specific Populations and Exposure

  • Pediatric Patients are identified as being at greater risk for systemic adverse effects and local skin atrophy because of their higher skin surface area-to-mass ratio compared to adults.
  • The risk of both systemic and local adverse reactions, such as HPA axis suppression and skin atrophy, increases with prolonged use, application to large surface areas, or the use of occlusive dressings (including diapers).

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory classification states that acute overdosage resulting from topical application of Canasone C.B. is unlikely to be life-threatening.

The primary documented risk of overdose is associated with the systemic absorption of the Betamethasone Dipropionate component, typically following prolonged use, application to large surface areas, or use under occlusion. These circumstances can promote systemic exposure sufficient to cause endocrine effects.

Documented Overdose Manifestations

System Affected Manifestations Listed in Official Labeling
Endocrine Reversible HPA-axis suppression, symptoms resembling Cushing's syndrome, and subsequent glucocorticosteroid insufficiency upon withdrawal.
Metabolic Laboratory findings of Hyperglycemia (high blood sugar) and Glucosuria (sugar in urine).

Required Emergency Actions

Immediate medical attention is required if the product is accidentally ingested (swallowed); contact a Poison Control Center or emergency services at once.

If symptoms of HPA-axis suppression are observed, the regulatory guidance is to address the issue by gradually withdrawing the drug, reducing the frequency of application, or substituting a less potent agent. No specific antidote is documented in the official prescribing information. Pediatric patients are officially noted as more susceptible to systemic toxicity, with unique manifestations such as signs of intracranial hypertension (e.g., bulging fontanelle).

Therapeutic Uses of Canasone C.B.

What Canasone C.B. Treats: Main Uses and Benefits

The primary therapeutic function of Canasone C.B. is related to the management of dermatological conditions where superficial fungal infection is complicated by significant inflammation. It is considered relevant for symptomatic relief in acute phases where additional symptomatic support is needed. The combination is commonly used for the topical management of symptomatic inflammatory tinea infections.


Key Therapeutic Applications

This medication is generally used for specific dermatophytoses that exhibit a heightened irritative response, including Tinea pedis (athlete's foot), Tinea cruris (jock itch), and Tinea corporis (ringworm). It is applied when the fungal growth is accompanied by marked signs of irritation, often helping address symptom clusters that may become intense or disruptive.

Canasone C.B. is commonly used to help with the distressing symptoms associated with active skin inflammation, primarily intense, persistent pruritus (itching), burning sensations, and visible erythema (redness) or swelling. By easing distress and addressing these pronounced physical manifestations, the medication offers symptomatic relief that contributes to improved day-to-day comfort during symptomatic periods.

“Applied across domains where additional symptomatic support is needed, the combination helps manage symptoms that interfere with daily comfort.”

The formulation is relevant in clinical settings that involve acute or disruptive symptom patterns, such as infections located in body folds (intertriginous areas). It supports the patient during these episodes by addressing the fungal component and reducing associated symptoms like scaling and cracking, which may assist with maintaining functional stability in these contexts.


Quick Fact: Support for Symptomatic Relief
Common Use: Applied when fungal infections are complicated by significant inflammation, redness, and severe itching.
Main Benefit: Provides supportive relief that helps ease the overall symptom burden associated with acute flares.

Regulatory References

  1. DailyMed official drug label

Eligibility and Restrictions for Use

Canasone C.B. eligibility is strictly defined by regulatory guidelines due to its potent corticosteroid and antifungal components. The medicine is indicated for patients 17 years of age and older. Use in patients under 17 years is not recommended by regulatory bodies due to the increased risk of systemic toxicity, specifically hypothalamic-pituitary-adrenal (HPA) axis suppression.


Official Eligibility and Non-Eligibility Rules

The cream is contraindicated if a patient has a known hypersensitivity to Betamethasone Dipropionate, Clotrimazol, or any ingredient. It must not be used to treat untreated viral diseases of the skin (such as herpes simplex) or untreated bacterial or tubercular infections. Use for diaper dermatitis is also not recommended.

Special restrictions apply to vulnerable populations. For pregnancy, the medicine is designated Category C, meaning use is permitted only if the potential benefit outweighs the potential risk to the fetus. Lactating individuals must use the product with caution, as it is unknown if the components pass into human milk. Use under occlusive dressings is restricted as it significantly increases the risk of systemic absorption. The product is strictly for topical use only.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Canasone C.B. (Betamethasone Dipropionate/Clotrimazol) focuses on pharmacodynamic reinforcement and constraints related to systemic exposure, as specific drug-drug metabolic interactions are not documented for the topical formulation.


Documented Interaction Patterns

The most significant interaction involves other corticosteroid-containing products (topical or systemic). The co-administration of this medicine with any other product containing a corticosteroid is a pharmacodynamic interaction that may lead to an additive increase in the total systemic glucocorticoid exposure, as described in regulatory labels.

Interaction Type Constraint Official Rationale
Co-administration Avoid use with other corticosteroid-containing products. Risk of additive systemic glucocorticoid exposure.
Application Method Avoid use under occlusive dressings or over large areas. Significantly enhances systemic absorption, increasing exposure risk.

Exposure-Related Restrictions

Certain procedural constraints are required because they are officially documented to augment the systemic absorption of the Betamethasone component. Prolonged use, application to large surface areas, or use under occlusive dressings (including the diaper area) all enhance percutaneous absorption and are restricted by regulatory bodies. Furthermore, pediatric patients are officially noted as a population with heightened susceptibility, where the increased skin surface-to-body mass ratio leads to a greater risk of systemic effects from increased exposure. No specific drug-drug metabolic or transporter-mediated interactions are formally stated in the prescribing information.

Mechanism of Action

Modulation of Host Inflammatory Signaling Pathways

The corticosteroid component, Betamethasone Dipropionate, works by engaging Glucocorticoid Receptors (GR) within host cells, a mechanism that supports the transrepression of pro-inflammatory transcription factors. This action blocks a key enzyme in the body's Arachidonic Acid Cascade, resulting in the suppression of inflammatory signaling molecules like prostaglandins. This suppression results in altered local fluid dynamics and decreased cellular infiltration at the application site.


Interference with Fungal Cell Structure and Function

The antifungal agent, Clotrimazol, exerts its effect by acting as an inhibitor of the fungal enzyme Lanosterol 14-alpha-demethylase (CYP51). This interference is a critical molecular step that blocks the synthesis of ergosterol, the component necessary for the pathogen's cell membrane integrity. The resulting structural failure and accumulation of toxic precursors promote fungal cellular dysfunction and impair the maintenance of cell viability.


Complementary Dual-System Engagement

The two components exhibit a functional complementarity by engaging two independent mechanisms: the corticosteroid modulates host cell signaling, and the antifungal disrupts pathogen viability via enzyme inhibition. This dual-system engagement produces a simultaneous modulation of two distinct biological processes at the site of application.

Dosage and Administration Information

How to Use Canasone C.B.

This section outlines the general principles for the administration and dosing of the Betamethasone Dipropionate and Clotrimazol combination product. The medication is a fixed-dose topical preparation available as a cream or lotion and its use is governed by specific instructions concerning route, frequency, duration, and patient age.

Official Administration Guidelines

The primary route of administration is topical for application to the skin. The product is strictly not approved for use in the eyes (ophthalmic), orally, or intravaginally. The cream or lotion should be gently massaged as a thin film into the affected skin and surrounding areas twice a day (q12hr), typically in the morning and evening.

Application Constraint Procedural Rule
Maximum Weekly Dose The total quantity applied must not exceed 45 grams per week.
Occlusion Use Do not use with occlusive dressings (e.g., bandages or wraps) unless specifically directed.
Restricted Areas Do not apply to the face or underarms.
Age Limitation Use is indicated only for patients 17 years of age and older.

Duration of Treatment Course

The duration of use is strictly limited and varies based on the infection site. For Tinea cruris (jock itch) and Tinea corporis (ringworm), the treatment course is generally one week, and use must not extend beyond two weeks. For Tinea pedis (athlete's foot), the course is typically two weeks, with use not exceeding four weeks. Completion of the full prescribed treatment time is required; if no improvement is observed after the initial prescribed period, a re-evaluation of the diagnosis is indicated.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Canasone C.B.


Evidence for Use in Symptomatic Inflammatory Tinea Infections

The research exploring Canasone C.B. has been primarily conducted through short-term, randomized controlled trials (RCTs). These studies were used in research exploring how symptoms change over time for Tinea pedis (athlete's foot) and Tinea cruris (jock itch) where signs of inflammation were present. The trials typically measured two main types of outcomes: those related to outcomes linked to inflammatory or irritative states such as redness and severe itching, and those related to mycological efficacy, which means monitoring the presence or absence of the fungus in laboratory tests.

Studies reported that when compared to the placebo or vehicle alone, the combination was associated with changes measured during the study period for both the resolution of physical discomfort and the measured fungal outcomes. The research describes that the populations observed were adults whose infections were confirmed through established methods.

Comparing the Combination Product to Antifungal Monotherapy

Comparative trials have been relevant in research examining short-term symptom changes between the combination medicine and the antifungal component (Clotrimazol) used by itself. These studies explored whether the addition of the corticosteroid component (Betamethasone Dipropionate) was associated with different patterns of symptom evolution in the observed populations. Comparative research explored whether the combination formulation was observed to reach predetermined endpoints in symptom scores over different time intervals compared to the antifungal component alone. Research explored the mycological clearance rates for the combination product, and data for the outcomes were also reported for the antifungal component used alone.


Long-Term Studies and Follow-Up Data

The pivotal research that led to the regulatory review of this medicine focused on short treatment durations. Follow-up durations were limited in the primary clinical trials, which focused on defined time intervals of one to two weeks. Long-term effects are not fully established and there is limited information for long-term outcomes regarding the recurrence of the infection after the treatment had finished. Research provides insight into short-term changes, but the evidence base has limited data concerning the sustained durability of the initial clearance over extended periods.


Remaining Research Gaps and Uncertainties

While studies contribute to the broader evidence landscape, there are areas where certainty remains low. The results apply specifically to the short-term, acute phases of the condition. Comparative evidence is lacking for certain aspects of long-term use, and follow-up durations were limited in the key studies. Research provides context but not individual predictions, and the evidence highlights what is known — and what is still uncertain.

Key Studies & References

  1. Label: BETAMETHASONE CLOTRIMAZOLE cream (DailyMed/NIH) - Approved Indications and Clinical Pharmacology Summary

Frequently Asked Questions (FAQ)

Common questions about Canasone C.B. (FAQ)


Q: How quickly can I expect Canasone C.B. to start working?

Clinical studies for certain infections, such as tinea corporis and tinea cruris, generally measured changes in symptoms within the first few days after starting the product. These visits typically occurred within three to five days. Regulatory documents indicate that if no improvement is observed after the specified treatment duration, a medical re-evaluation of the diagnosis is typically indicated.


Q: Can Canasone C.B. be taken by people with kidney or liver issues?

Regulatory warnings note that the product is primarily processed by the liver and excreted by the kidneys. For individuals with existing liver or kidney dysfunction, regulatory documents state that systemic absorption of the product’s components may be of greater concern due to the risk of HPA axis suppression.


Q: Is it normal to feel a bit dizzy or tired when first starting Canasone C.B.?

The active corticosteroid component has been associated with systemic side effects, which, with greater-than-expected absorption, may include feeling very tired or having extreme fatigue. While these symptoms are not listed as common reactions for the topical application, they are sometimes reported as part of systemic adverse effects. Any new or persistent physical sensations may warrant discussion with a healthcare professional.


Q: Is Canasone C.B. safe to take long-term, according to studies?

Regulatory documents establish that this medication is not intended for long-term use. The duration of use is strictly limited based on the infection site. Prolonged use is officially noted to increase the risk of both local skin issues and potential systemic side effects.


Q: How is the safety of Canasone C.B. monitored after it is approved?

Safety continues to be monitored through the collection of reports on adverse effects after the product becomes available. For patients applying the product over large areas or under occlusion, regulatory guidelines describe periodic evaluation for evidence of HPA axis suppression using specific laboratory tests.


Q: Is Canasone C.B. considered a controlled substance?

Official government information indicates that Canasone C.B. is not classified as a controlled substance.


Q: What does it mean that Canasone C.B. has a 'specific safety classification'?

The medicine is designated Pregnancy Category C by the FDA. This specific classification describes conditions where the potential benefit of use may be considered to outweigh the potential risk, based on available evidence.


Q: Can Canasone C.B. affect my ability to drive or operate machinery?

When used as prescribed, the product is intended for topical use, which limits systemic absorption. However, rare, serious systemic side effects, such as changes in vision, could potentially affect a person's ability to safely operate a vehicle or machinery. Any new visual or severe systemic side effects should be discussed with a medical provider.


Q: Is there a generic version of Canasone C.B. available, and is it comparable?

Yes, a generic version containing the same active ingredients—clotrimazole and betamethasone dipropionate—is widely available. Official standards require that generic medications containing the same active ingredients be therapeutically equivalent to the brand-name product.


Q: Can taking Canasone C.B. lead to weight changes?

Systemic absorption of the corticosteroid component may rarely lead to effects similar to oral steroids, which can include fluid retention and swelling, or in rare cases, weight loss related to adrenal issues. These effects are generally linked to systemic exposure but are documented as potential side effects.


Q: Does the time of day I take Canasone C.B. matter for its effectiveness?

The official product information describes an application pattern of twice a day, typically separated by 12 hours. Consistency with this pattern, rather than the specific time of day, is the primary instruction to ensure appropriate levels of the medication are maintained on the skin.


Q: What are the major differences between the brand name and the generic version of Canasone C.B.?

Both the brand-name and generic versions are required to be therapeutically equivalent, containing the same active ingredients. The main differences typically involve the cost, the specific non-active components (the base of the cream or lotion), and the trade name.


Q: Is it possible for Canasone C.B. to stop working after a while?

Due to its potent corticosteroid component, prolonged use is restricted. Regulatory warnings indicate that discontinuing use after an extended period may sometimes be associated with a return or worsening of the original skin condition. The product is not intended for long-term, indefinite use.


Q: Does Canasone C.B. impact cholesterol or blood pressure readings?

If the corticosteroid component is absorbed systemically in high amounts, it may rarely produce effects seen with oral steroids. These systemic effects can include an elevation in serum triglyceride and LDL cholesterol levels, as well as potential fluid retention and an increase in blood pressure.


Q: Can Canasone C.B. cause headaches or joint pain?

Headache has been reported as a potential symptom linked to systemic effects associated with corticosteroid absorption, particularly in cases of HPA axis suppression. Joint pain is not frequently reported, but persistent symptoms may warrant discussion with a healthcare professional.


Q: Can Canasone C.B. be safely taken by a person with diabetes?

Official documents describe a potential interaction with diabetes mellitus due to the corticosteroid component. Because corticosteroids can potentially raise blood glucose levels, official information indicates that the product should be used cautiously in patients with diabetes.


Q: Does Canasone C.B. interact with hormonal birth control pills?

The antifungal component, clotrimazole, has been noted to potentially alter the systemic levels of some estrogen-containing medications, which may include hormonal birth control. Concerns regarding this potential interaction are typically discussed with a healthcare professional.


Q: Is the purpose of Canasone C.B. purely symptom relief, or is it a long-term treatment?

The formulation is defined as a dual-action product intended for comprehensive management. Its purpose is to provide symptom relief (via the corticosteroid) while simultaneously providing treatment of the fungal pathogen (via the antifungal). It is restricted to short-term use.


Q: Does Canasone C.B. affect blood sugar levels?

Yes, official warnings indicate that the systemic absorption of the corticosteroid component may produce manifestations of hyperglycemia (high blood sugar) and glucosuria (sugar in the urine) in some patients. This effect is why official information highlights the need for caution in patients with conditions like diabetes.


Q: Can I crush or split the Canasone C.B. tablet/capsule?

Canasone C.B. is a topical pharmaceutical preparation intended for use on the skin, typically available as a cream or lotion. It is not available in a tablet or capsule form, so instructions for crushing or splitting are not applicable to this product.


Q: What should I do if my side effects don't go away after the first few days?

Official guidelines indicate that persistent or severe adverse reactions should be reported. While some minor side effects may resolve quickly, persistent symptoms beyond the first few days are often discussed with a healthcare professional for evaluation.


Q: Does Canasone C.B. have any known psychological side effects, such as mood changes?

Potential serious systemic side effects, though rare with topical use, are linked to the corticosteroid component. These can include mood changes and, in rare instances, more significant psychological symptoms associated with conditions like Cushing's syndrome.


Q: Are there specific tests I might need while taking Canasone C.B.?

For patients applying the product to a large surface area or under occlusion, a medical professional may recommend specific tests. These are standard procedures, such as the ACTH stimulation test or plasma cortisol test, used to periodically evaluate for evidence of HPA axis suppression.

How should Canasone C.B. be stored and disposed of?

How to Store and Dispose of Clotrimazole and Betamethasone Dipropionate Cream

Clotrimazole and Betamethasone Dipropionate Cream must be stored strictly according to regulatory specifications to ensure stability and integrity.


Official Storage Conditions

  • Temperature: Store at Controlled Room Temperature, typically 20 C to 25 C (68 F to 77 F).
  • Protection: The product must be protected from freezing, heat, moisture, and direct light.
  • Container: Keep the medication in its closed container and do not use it past the expiration date.
  • Child Safety: It must be stored securely, out of the sight and reach of children.

Disposal Guidance

Disposal: Unused or expired product must be disposed of in accordance with local regulations for pharmaceutical waste. Do not dispose of the medicine by flushing it down a toilet or sink, as this is prohibited by official guidance.

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

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