Corisol

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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 Corisol

Property Description
Active Ingredient Clotrimazole
Form Cream, Solution, Vaginal Tablet, Oral Lozenge
Pharmacological Class Azole Antifungal / Imidazole Derivative
General Purpose Control and resolve fungal and yeast infections
Origin Synthetic

What Type of Medicine is Corisol and What Does It Contain?

Corisol is a trade name for a synthetic antifungal medication whose active ingredient is Clotrimazole, belonging to the azole antifungal class. This compound is chemically defined as an imidazole derivative, classifying it as a broad-spectrum antimycotic agent. Corisol is designed as a single-ingredient product, consisting of Clotrimazole combined with a basic, inert base/vehicle, such as a cream emulsion or a liquid solvent. The mechanism of this imidazole derivative involves inhibiting fungal growth, which focuses the drug's activity on its specific antifungal properties.

Available Forms and General Purpose of Corisol

The general purpose of Corisol is to control and resolve infections caused by various susceptible fungi and yeasts on the body's surface and mucous membranes. Clotrimazole is utilized for the treatment of candidiasis and is considered a standard component in the management of common fungal infections.

The medication is available in several high-level dosage forms, including cream, liquid solution, vaginal tablets (pessaries), and oral lozenges, which determines its topical or oromucosal route of administration. The availability across these varied forms, which avoid significant systemic absorption, ensures that treatment can be delivered specifically to the necessary localized area.

Regulatory References

  1. WHO Model List of Essential Medicines
  2. WHO Essential Medicines List

What side effects are possible with Corisol?

Possible side effects and safety information

The regulatory safety profile of Corisol (Clotrimazole) is structured by classifying possible adverse reactions into categories based on official frequency reporting and the physiological system affected. Most commonly reported adverse events are local reactions, primarily associated with the administration site.

Frequency-Classified Adverse Reactions

Adverse reactions are classified according to incidence based on regulatory data:

Classification Example Effects (System-Organ Class)
Common (1/100 to <1/10) Burning or stinging sensation (General disorders and administration site)
Uncommon (1/1,000 to <1/100) Pruritus (itching), skin rash, application site discomfort (Skin disorders)
Not Known (Frequency cannot be estimated) Systemic hypersensitivity, syncope, hypotension (Immune/Vascular disorders)

Serious Adverse Reactions

Although rare, systemic hypersensitivity reactions (allergic reactions) are documented in official regulatory labeling. These reactions may manifest with severe symptoms, including syncope (fainting), hypotension (low blood pressure), and dyspnea (shortness of breath).

Safety Considerations

The official label includes specific constraints related to the medication's use. Due to the potential for severe irritation, direct contact with the eyes must be avoided, particularly with the topical forms. For the vaginal dosage form, components may reduce the effectiveness of certain latex barrier contraceptives (e.g., condoms or diaphragms). Furthermore, the oral lozenge form carries a documented risk of potentially increasing the plasma concentration of co-administered drugs metabolized by CYP3A4.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information describes overdose with this class of medicine as primarily an acute or chronic condition arising from exposure to supratherapeutic doses. The most significant concern for prolonged overuse is the development of a state resembling endogenous hypercortisolism, or Cushing's syndrome, while acute, massive ingestion may cause immediate, non-specific symptoms.

Overdose manifestations vary significantly based on the duration and extent of excessive exposure. Acute symptoms may be minor, presenting as increased nervousness, sleep disturbances, or gastrointestinal upset. However, massive acute overdose can lead to severe complications such as altered mental status, seizures, heart rhythm disturbances, and acute fluid and electrolyte imbalances. Long-term overuse, which is often considered a form of chronic overdose, is associated with a risk of bone thinning (osteoporosis), muscle weakness, swelling of the lower extremities, and psychiatric symptoms like depression or psychosis.

Immediate medical attention is required for any suspected overdose, whether massive acute ingestion or a significant repeated excess. Additionally, patients who have been on the medicine for more than a few weeks or at high doses should never stop taking it abruptly, as this can trigger a medical emergency called acute adrenal insufficiency, which presents with severe fatigue, vomiting, and low blood pressure. The official label requires that medical professionals be contacted immediately if symptoms of either acute overdose or adrenal insufficiency occur.

Therapeutic Uses of Corisol

What Corisol Treats: Main Uses and Benefits

Corisol is relevant for the supportive management of symptomatic discomfort across various clinical scenarios. As part of its therapeutic category, it is used for conditions associated with significant physiological or inflammatory stress. This includes managing symptoms related to certain inflammatory states, acute allergic episodes, and specific endocrine disorders.

The medication may provide support that helps ease the overall symptom burden during episodes of heightened symptoms. Corisol is applied in situations involving symptoms that become more noticeable or intensify, creating immediate discomfort or temporary functional strain, and is generally considered relevant for conditions characterized by symptoms that are episodic, recurrent, or fluctuate in intensity.

“The medication is used to provide symptomatic support that may help patients cope more steadily with difficult episodes.”

Quick Fact: Support for Symptoms that Interfere with Daily Functioning

The medication offers temporary assistance in symptom stabilization, which helps address symptom clusters that may become intense or disruptive. It assists with supporting functional stability when symptoms become momentarily overwhelming.

Eligibility and Restrictions for Use

Who can and cannot use Corisol?

Use of Corisol (Clotrimazole) is strictly governed by regulatory documentation defining populations who are excluded, restricted, or eligible.


Absolute Contraindications

Corisol must not be used by any patient with a known hypersensitivity to the active ingredient, clotrimazole, to other azole/imidazole antifungal medicines, or to any excipient present in the specific formulation.


Age-Related Eligibility

The medicine is generally established for adult use. For most topical and vaginal forms, safety and effectiveness are not established in children under 12 years of age. In contrast, the oral lozenge form is approved for use in children aged 3 years and older for specific oromucosal infections.


Usage Restrictions and Conditions

Topical Corisol is not recommended for treating nail or scalp fungal infections, as efficacy is not established in these areas. Use is typically avoided during the first trimester of pregnancy and any use during pregnancy or lactation requires supervision by a physician or midwife. Additionally, patients using vaginal formulations must be aware that the product may damage latex contraceptives (e.g., condoms), requiring the use of alternative barrier protection.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation structures the interaction profile of Corisol (Clotrimazole) based on the specific formulation used. The systemic drug-drug interactions are primarily associated with the oral lozenge form, while the local formulations carry a mandatory restriction related to physical incompatibility.

Regulatory Interaction Classifications

Interaction Type Specific Interacting Substances/Products Regulatory Restriction
Pharmacokinetic (Oral Lozenge) Tacrolimus, Sirolimus, Bedaquiline, Colchicine Increased exposure; monitoring or avoidance usually required.
Physical/Pharmacodynamic (Vaginal/Topical) Latex Contraceptive Devices (e.g., condoms, diaphragms) Co-administration restricted; product vehicle may cause damage.

Official Interaction Statements

The oral lozenge form is officially documented as an inhibitor of the CYP3A4 enzyme system. This pharmacokinetic interaction may lead to significantly increased plasma concentrations and reduced clearance of co-administered medicines that are metabolized by this pathway, such as certain immunosuppressants. For vaginal and topical formulations, alternative non-latex contraceptive precautions must be used for at least five days following application due to the officially noted risk of physical damage to latex products.

Patients with hepatic impairment who use the oral lozenge require periodic assessment of liver function, which is noted as a population-specific interaction consideration in regulatory labeling. No specific interaction pattern is documented for food, alcohol, or tobacco that mandates a consumption restriction.

Mechanism of Action

Inhibition of Fungal Ergosterol Biosynthesis

Corisol exerts its antimycotic effect by targeting and inhibiting lanosterol 14-alpha-demethylase, a cytochrome P450 enzyme vital to the fungal cell. This targeted inhibition prevents the final stages of ergosterol synthesis, which is the essential building block for the fungal cell membrane, thereby initiating a series of events leading to cellular failure.

Fungal Cell Membrane Structural Disruption

The resulting depletion of ergosterol, combined with the accumulation of toxic precursor sterols, compromises the integrity of the fungal cell membrane. This structural failure increases membrane permeability, leading to the leakage of intracellular contents and the cessation of the pathogen's viability.

Mechanistic Limitations and Efficacy Constraint

The fungicidal mechanism is directly constrained when the pathogen exhibits biological defenses, such as enzyme mutation leading to resistance, or where physical barriers prevent the drug from achieving effective concentration. The fungicidal mechanism is thus constrained when the drug cannot achieve effective concentration in deeply protected fungal reservoirs.

Dosage and Administration Information

Corisol (Clotrimazole) is administered through three primary, localized routes—Topical, Intravaginal, and Oromucosal—which correspond directly to the approved forms (cream/solution, vaginal tablets, and lozenges). Standard usage protocols describe the precise dose, frequency, and duration for each route.

For topical use, a thin layer of the 1% cream or solution is generally applied to the affected area, usually twice daily. This application must follow the procedural condition of applying the product only to skin that has been cleansed and thoroughly dried. The typical duration for topical treatment regimens ranges from 2 to 4 consecutive weeks.

The oromucosal form, the 10 mg lozenge, is typically administered five times per day for the course of treatment, which is generally 14 consecutive days for certain local infections. A critical instruction for this route is that the lozenge must be allowed to dissolve slowly in the mouth over approximately 30 minutes; it must not be chewed, crushed, or swallowed whole.

For intravaginal administration, regimens vary by strength, ranging from a 100 mg tablet inserted once daily for seven days to a single 500 mg dose. Pediatric usage is also governed by age-specific rules, with children over 3 years old generally receiving the same dose as adults for the oromucosal administration. All usage, including the handling of a missed dose (which involves omission if the next dose is near), follows established administration protocols.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Corisol

Evidence for Use in Superficial Skin Fungal Infections

Research examining Corisol (Clotrimazole) for common fungal skin infections, such as ringworm or athlete's foot, centers on short-term, controlled clinical trials. These studies explored Corisol for use in conditions often comparing the active ingredient against an inactive cream (placebo) or another topical medication. The main outcomes studies monitored were measurements of Clinical Response (how skin symptoms like scaling and itching evolved) and Mycological Status (whether laboratory tests indicated a change in the status of the fungus).

The follow-up durations were limited in many of the key registration studies. Consequently, there is limited information for long-term outcomes that track the durability of the initial outcome over many months. Data for preventing recurrence after the initial treatment phase are still emerging.

Evidence for Use in Vulvovaginal Candidiasis

Evidence for Corisol was studied for its use in vaginal yeast infections comes from systematic reviews and studies exploring short-to-intermediate-term, randomized controlled trials (RCTs). These trials research examined different topical administration schedules and were applied in research contexts involving fluctuating or unstable symptoms of the condition. Researchers focused on a combined outcome called Therapeutic Cure, which required both the resolution of outcomes linked to inflammatory or irritative states (such as itching and discharge) and the achievement of a negative fungal culture at a designated assessment visit.

Evidence quality varies across studies when compared to some systemic (oral) medications, particularly concerning the rate of fungal eradication over the long term. Also, the data for certain groups remain insufficient regarding infections caused by some non-Candida albicans species, and certainty remains low for use in individuals with significant immune system challenges.

What is Still Uncertain About Corisol Research

Research highlights the scope of the evidence and what remains uncertain regarding Corisol. Comparative evidence is lacking for some of the newer, non-traditional formulations of the active ingredient. Subgroup findings are uncertain concerning infections caused by less common species of fungi or yeasts. Furthermore, the certainty remains low for long-term therapeutic outcomes in patients who experience frequent recurrence of their infection.

Key Studies & References WHO Model List of Essential Medicines (EML): Clotrimazole Listing Context

Frequently Asked Questions (FAQ)

Common questions about Corisol (FAQ)

Q: How quickly does Corisol start to work?

Studies and official information indicate that clinical improvement, such as relief of pruritus (itching), typically occurs within the first week of treatment with the topical cream formulation. Full therapeutic response is generally expected after the completion of the prescribed duration of use.


Q: How long does Corisol stay in your system?

Official pharmacological studies indicate that systemic absorption of the drug is minimal or negligible following localized topical and vaginal administration. The small amount that is absorbed is primarily eliminated as inactive metabolites, indicating minimal systemic retention after localized application.


Q: Does Corisol affect sleep or cause drowsiness?

According to the official product information, the medicine has no or negligible influence on the ability to drive or operate machinery. This indicates that drowsiness is not a recognized common side effect impacting typical daily functions.


Q: Can I take Corisol with over-the-counter pain relievers?

Regulatory documentation for the topical and vaginal forms reports no known interactions with other medicines. However, the oral lozenge is documented as an inhibitor of the CYP3A4 enzyme system. This potential interaction may lead to increased plasma concentrations of co-administered medicines that are metabolized by this pathway.


Q: Can Corisol be used by elderly people?

Regulatory documents state that there is no separate dosage schedule or specific restriction designated for the elderly population. Therefore, the usage protocols established for adults are generally applied, but individual health status is always a key consideration.


Q: What is the difference between Corisol and a corticosteroid?

Corisol (Clotrimazole) is classified as an azole antifungal agent, targeting fungal cell membranes. Other combination products exist that include an additional corticosteroid component to address inflammation. Official documentation for these combination products highlights distinct warnings related to the steroid's effects, such as the risk of hormone function impairment.


Q: Is Corisol a prescription-only medication?

The active ingredient, Clotrimazole, is available as both an over-the-counter (OTC) product and a prescription (Rx) product. The availability status depends on the specific formulation, strength, and approved use for that market.


Q: What if I experience a rare side effect mentioned in the leaflet?

Official documentation advises that any serious or rare adverse reactions may be reported to the relevant health authority, such as the FDA or Health Canada. These reports help authorities continually monitor and update the safety profile of the medicine.


Q: Can Corisol make existing medical conditions worse?

Regulatory documents advise caution for use in patients with certain pre-existing conditions. For instance, the oral lozenge form carries a specific caution noting the importance of periodic liver function assessment in individuals with hepatic (liver) impairment.


Q: Is Corisol considered a controlled substance?

Official regulatory documentation for the drug does not classify Clotrimazole as a controlled substance.


Q: What are the restrictions on driving or operating machinery while taking Corisol?

Regulatory documents state that the medicine has no or negligible influence on the ability to drive or operate machinery.


Q: Does Corisol affect blood sugar levels?

Single-ingredient Corisol (Clotrimazole) is not noted to affect blood sugar levels. However, official warnings for combination products that include a corticosteroid component often advise caution due to the potential for blood glucose elevation by the steroid ingredient.


Q: Is a generic version of Corisol available?

Generic versions of the active ingredient, Clotrimazole, are available in the market. The availability of a specific generic product under a different brand name can vary depending on the regulatory status and exclusivity of the original product.


Q: How is Corisol typically discontinued after a period of use?

Regulatory guidance suggests that completing the full prescribed treatment course is necessary, even if symptoms appear to improve prior to completion. Discontinuation of the medication typically occurs upon the course's completion, as determined by the regulatory protocol.


Q: Does Corisol contain lactose or gluten?

Official product information confirms the vaginal tablet form contains lactose monohydrate as an excipient. It is important to review the specific product labeling for a detailed list of all excipients, as ingredients can vary by formulation.


Q: Is it normal to feel [vague sensation like tired or irritable] when starting Corisol?

Official documentation lists common adverse events as local reactions at the application site, such as burning or irritation. More general constitutional effects, such as nausea, dizziness, or syncope (fainting), are rarely reported systemic effects.


Q: Is Corisol associated with any warnings or alerts from health bodies?

Regulatory documents contain specific safety constraints and precautions that users should be aware of. These include the risk of physical damage to latex barrier contraceptives and the potential for increased drug levels with the oral lozenge due to CYP3A4 enzyme inhibition.


Q: Can Corisol be taken with common cold and flu medicines?

Regulatory documentation for the topical and vaginal forms reports no known interactions with other medicines. The potential CYP3A4 interaction, however, suggests caution is needed with the oral lozenge form, as it may affect co-administered medicines, including ingredients found in certain multi-ingredient cold and flu treatments.


Q: Does the effectiveness of Corisol decrease over time?

The fungicidal mechanism is documented to be constrained by factors such as the development of resistance in the fungus. Regulatory guidance advises re-evaluating the diagnosis if symptoms do not improve after completing the specified course of treatment. This guidance exists to ensure the treatment is functioning as intended.


Q: How does Corisol get approved by government health agencies?

Drug approval involves a thorough regulatory review process by government health agencies like the FDA or EMA. This process includes the evaluation of New Drug Applications (NDAs) and requires extensive clinical and bioequivalence studies to ensure the product meets safety and efficacy standards.


Q: What information is legally required to be included in the Corisol package leaflet?

The information legally required to be included in a package leaflet or Summary of Product Characteristics (SmPC) is highly structured. This typically includes sections on the medicine's purpose, warnings/precautions, proper administration instructions, possible side effects, and storage guidelines.

How should Corisol be stored and disposed of?

Storage and Disposal of Corisol (Clotrimazole)

The storage and disposal of Corisol must strictly follow official regulatory documentation to maintain product stability and safety.

Storage Requirements

Condition Requirement
Temperature Store at controlled room temperature (20 C to 25 C), protecting it from excessive heat and moisture.
Container Keep the container tightly closed and store in the original container.
Child Safety Must be stored out of the sight and reach of children.

Disposal Instructions

Unused or expired Corisol should be disposed of in accordance with local requirements. The medication must not be thrown away via wastewater or general household waste; drug take-back programs are the preferred method.

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

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