Sinamida

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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 Sinamida

Property Description
Active ingredient Bifonazole, Clotrimazol, Econazole, Ketoconazole, Terbinafine Hydrochloride, Undecylenic Acid, Zinc Oxide
Form Topical Preparation (e.g., cream, solution)
Pharmacological class Broad-Spectrum Topical Antifungal Agent
Common purpose Elimination of superficial fungal and yeast skin infections
Origin Synthetic and Derived (multi-component)

Sinamida is a unique fixed-dose combination antifungal medication designed for topical administration to manage a wide array of superficial fungal infections of the skin. It is categorically defined as a Broad-Spectrum Topical Antifungal Agent, a necessary classification due to its distinctive blend of seven active pharmacological components.


What Type of Medicine is Sinamida? (Identity and Class)

Sinamida is classified as a poly-antifungal agent, utilizing a deliberate strategy that combines multiple active compounds to achieve a wide therapeutic reach against various mycotic pathogens. The preparation is a multi-component pharmaceutical product designed for topical application (dermal route of administration). Agents within the allylamine class, such as Terbinafine, are clinically recognized for their potent fungicidal activity against common dermatophytes. This classification indicates that the medicine is fundamentally focused on eliminating the infectious organism rather than solely inhibiting its proliferation, a key feature in managing conditions like chronic tinea.


The Unique, Multi-Component Formula (Composition and Origin)

The composition of Sinamida is complex, featuring both synthetic and derived agents. The core antimycotic activity is derived from five dedicated antifungal agents: the four azole antifungals (Bifonazole, Clotrimazol, Econazole, and Ketoconazole), and the potent allylamine agent, Terbinafine Hydrochloride. This multi-class strategy is intended to provide synergistic activity against certain difficult-to-treat fungal strains in vitro. This combined approach aims to overcome potential resistance by targeting the fungal cell via two distinct primary pathways involved in vital ergosterol biosynthesis. The formula is further enhanced by Undecylenic Acid, a derived fatty acid with fungistatic properties, and Zinc Oxide, a mineral compound that provides supplementary astringent and skin protectant action.


General Therapeutic Purpose (High-Level Benefit)

The general therapeutic purpose of Sinamida is to provide comprehensive antimicrobial coverage to eliminate and manage superficial dermatomycoses, such as those affecting the feet or skin folds. By combining multiple ingredients that interrupt the fungal cell membrane integrity through different pathways, the combination is specifically engineered for a high level of efficacy across a wide spectrum of fungal organisms. The supportive agents, such as Zinc Oxide, assist this process by helping to create an environment on the skin unfavorable for the continued proliferation of fungal organisms, thereby promoting the clearance of the infection and stabilization of the dermal barrier.

What side effects are possible with Sinamida?

Possible Side Effects and Safety Information

The safety profile for this multi-component topical antifungal agent, which includes azole and allylamine components, is predominantly characterized by local reactions at the application site, as indicated in official regulatory documents.

Frequency-Classified Adverse Reactions

Adverse effects are formally classified by frequency based on data from clinical trials and post-marketing surveillance:

  • Common (ge1/100 to <1/10): Application site reactions such as pruritus (itching), a burning sensation, and erythema (redness) are frequently documented.
  • Uncommon (ge1/1,000 to <1/100): Includes local effects like dry skin, blistering, contact dermatitis, and general application site irritation.

Local reactions are often noted in regulatory documents as being more frequent at the beginning of treatment.

System-Organ-Class Safety Groupings

Official labeling groups adverse events into specific physiological categories:

  • Skin and Subcutaneous Tissue Disorders: Captures reactions such as peeling, dryness, and inflammation.
  • General Disorders and Administration Site Conditions: Includes localized pain and discomfort.
  • Immune System Disorders: Lists generalized reactions, including rare reports of severe hypersensitivity reactions (e.g., angioedema).

Safety Considerations and Restrictions

Regulatory authorities define critical safety limitations for this class of medicine:

  • Contraindication: The medication is contraindicated in individuals with a known history of hypersensitivity to any of its active components or excipients.
  • External Use Constraint: The product is strictly for external topical use only and must not come into contact with the eyes or other mucous membranes.
  • Special Populations: Safety statements for pregnancy and lactation advise use only if clearly necessary due to the potential for minimal systemic absorption, as defined by official regulatory categories.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Sinamida overdose is focused exclusively on the risk of accidental oral ingestion of the topical preparation. Since this medication is formulated strictly for dermal application, accidental ingestion represents the primary exposure route referenced in governmental overdose guidance. Manifestations following ingestion are typically non-severe and primarily affect the gastrointestinal system, including symptoms such as nausea, vomiting, and abdominal discomfort. Non-specific symptoms like dizziness or vertigo may also be noted as presentations requiring observation.

In the event of any confirmed or suspected overdose, regulatory authorities mandate that individuals must seek immediate medical attention and contact a poison control center without delay. This urgent action is required upon exposure, regardless of whether clinical signs are yet present. Treatment following ingestion is officially defined as symptomatic and supportive, consistent with the information that no specific antidote is known for this multi-component formula. Hospital monitoring and observation may be required following significant ingestion to assess for potential systemic effects. Regulatory documentation specifically highlights pediatric ingestion as a circumstance requiring heightened caution and immediate medical evaluation.

Therapeutic Uses of Sinamida

The primary role of Sinamida is applied across therapeutic domains where additional symptomatic support is needed to manage and ease distress from superficial mycotic infections. This therapeutic area commonly includes fungal skin conditions.

The multi-component formula is generally designed to address a wide spectrum of pathogens, encompassing both common dermatophytes and yeast organisms.

Sinamida is commonly used across conditions presenting with systemic or localized discomfort, specifically those caused by fungal pathogens. It is commonly used to help with tinea infections such as Athlete's Foot (Tinea Pedis), Ringworm (Tinea Corporis), and Jock Itch (Tinea Cruris), and is considered relevant for cutaneous Candidiasis.

This medication is applied in addressing the symptom clusters that interfere with daily functioning, primarily the intense itching, burning sensations, and noticeable redness. This supportive relief assists with maintaining functional stability when symptoms are more noticeable, including the easing of functional strain caused by symptoms like fissuring and peeling.


Quick Fact: Relief for Dermal Discomfort Sinamida supports skin comfort and is relevant for easing the functional strain caused by symptoms like fissuring and peeling.

Eligibility and Restrictions for Use

The eligibility for the use of Sinamida, a multi-component topical antifungal, is governed by explicit regulatory parameters concerning patient demographics and physical status.

Contraindicated Populations

The medicine is absolutely contraindicated in any individual with a known hypersensitivity or allergic reaction to any of the seven active ingredients (Bifonazole, Clotrimazol, Econazole, Ketoconazole, Terbinafine, Undecylenic Acid, Zinc Oxide) or to any excipient within the formulation.

Age-Group Eligibility

Use is established and approved for adults and adolescents 12 years of age and older. In contrast, use in pediatric patients under 12 years is generally not established in official government labeling, reflecting insufficient data on safety and efficacy for this age group.

Reproductive Status Restrictions

Use is highly conditional during critical physiological periods. Sinamida is not recommended during pregnancy unless the treating professional determines the clear potential benefit justifies the potential risk. For breastfeeding individuals, use is also not recommended, and the topical preparation must not be applied to the breast area to avoid infant exposure. The drug is strictly limited to external skin use and is restricted from use near the eyes or on large areas of broken skin.

What should I know about interactions with other medicines?

The documented interaction profile for the topical combination medication Sinamida is structured around the potential for pharmacokinetic interference by its active components, as noted in government regulatory sources. These documents focus on the known inhibitory capacity of Ketoconazole and Terbinafine on key metabolic enzymes.

The Ketoconazole component is officially noted for its potential as a potent inhibitor of Cytochrome P450 3A4 (CYP3A4). Similarly, the Terbinafine component is cited for its moderate potential to inhibit CYP2D6. These documented interactions are primarily relevant if Sinamida is applied over large surface areas or used for prolonged periods, which could potentially lead to systemic absorption.

Documented Interaction Classification

The regulatory outcome is that co-administration with other medicines that are sensitive substrates of CYP3A4 or CYP2D6 may result in an increase in the systemic plasma concentration (exposure) of the co-administered drug.

Interaction Type (Pharmacokinetic) Component Basis Regulatory Outcome
Metabolic Inhibition Ketoconazole (CYP3A4) / Terbinafine (CYP2D6) Increased exposure of co-administered sensitive substrate drugs

This exposure-modifying interaction leads to a regulatory classification of Use with Caution when co-administering these sensitive substrate drugs, although no formal contraindications are established for the topical route. Regulatory information also includes a population-specific caution noting the potential for heightened risk in patients with pre-existing hepatic impairment, where minimal systemic absorption may be more clinically relevant. No mandatory timing-separation rules or interactions with food, alcohol, or herbal products are explicitly cited for the topical formulation.

Mechanism of Action

Dual-Point Blockade of Fungal Ergosterol Pathway

This domain covers the primary biological targets of Sinamida, where azole components inhibit the enzyme CYP51 and the allylamine component inhibits Squalene Epoxidase . This synergistic, two-step inhibition prevents the fungus from synthesizing ergosterol and causes a toxic accumulation of precursor molecules, leading to the disintegration of the fungal cell membrane and subsequent pathogen viability loss.


Multi-Action Mechanistic Synergy and Ancillary Support

This section focuses on how the multiple active ingredients function together and the drug's secondary mechanisms. The combination utilizes dual enzymatic targets, allowing the mechanism to proceed via two distinct points of failure within the pathogen's metabolism. The inclusion of components that physically modulate the dermal environment acts to reduce local moisture and attenuate the activation of inflammatory mediators, contributing to local tissue stability and the maintenance of the dermal barrier function.

Dosage and Administration Information

Official Administration Guidelines

Sinamida is administered strictly via the Topical (Dermal) route as a cream, solution, or gel preparation, consistent with official labeling for its constituent antifungal agents. The dose is functional, defined as the quantity required to form a thin film that covers the entire affected skin area, including a narrow margin of surrounding healthy skin. This area-dependent approach dictates the regimen over specific volumetric measurements.

The standard dosing frequency is typically once daily (QD) or twice daily (BID), applied at regular intervals. Prior to use, the skin must be cleaned with a mild cleanser and thoroughly dried to meet labeled preparation requirements. If an application is missed, it should be applied as soon as it is remembered, unless the time for the next scheduled dose is near, in which case the missed dose is skipped to resume the regular schedule.

Treatment requires a short-term course that generally ranges from one to four consecutive weeks, although specific dermal infections may necessitate up to eight weeks of continuous application. The full duration must be completed regardless of early symptom resolution. A key use constraint specifies that occlusive dressings (e.g., tight bandages) should not be applied over the treated area unless specifically advised by a prescriber. Furthermore, pediatric administration (e.g., in children under 12 years of age) requires explicit dose and duration determination by a qualified prescriber, as the default adult regimen does not apply.

Recent Clinical Evidence

Research evidence / Overview of studies for Sinamida

Evidence for Superficial Fungal Skin Infections

Research for the active ingredients in Sinamida has largely utilized Randomized Controlled Trials (RCTs) and comprehensive Systematic Reviews to explore how these agents were evaluated in studies involving common fungal skin conditions. These trials were designed to examine outcomes related to fungal organism clearance and outcomes related to physical discomfort, such as itching, burning, and scaling. These studies, which focused on adult populations with confirmed diagnoses, studies help show what has been observed so far concerning the patterns of symptom change over defined time intervals.

Studies monitored how symptoms evolved in the observed populations throughout the short-term treatment period, as well as monitoring study parameters during observation periods following the end of treatment. Findings describe patterns observed in the studies related to both the fungal clearance and patient-reported outcomes describing perceived discomfort. Research provides context but not individual predictions, and the findings reflect the specific conditions under which they were conducted.

Study of Multi-Component Research Scenarios

Studies in this landscape have examined multi-component topical antifungal treatments, applied in research contexts involving fluctuating or unstable symptoms. These studies monitored physiological strain or stress linked to outcomes linked to inflammatory or irritative states. Research examined how these combined treatments compared against single-agent antifungal creams in defined research settings.

In this area, comparative evidence is lacking, particularly for the precise fixed-dose combination formula present in Sinamida. Studies contribute to the broader evidence landscape for topical antifungals, but research describing how the specific blend of seven components was studied for against established monotherapies is limited.

Research Exploring Long-Term Observation Periods

Clinical studies exploring topical antifungals primarily focused on research exploring short-term symptom changes, often lasting the typical one- to four-week treatment period. Follow-up durations were limited, extending only to an intermediate term (typically a few months) to track the stability of the outcome.

Research explored whether recurrence patterns could be observed in conditions characterized by fluctuating or episodic manifestations. Studies describe patterns related to how frequently infections returned after the initial assessment. However, there is limited information for long-term outcomes, and the evidence regarding sustained clearance rates over periods longer than four months is not fully established.

Research Populations Examined

Data for certain groups remain insufficient. Comparative evidence is lacking for specific patient subgroups with different underlying health concerns or comorbidities. Additionally, few data are available for children, and long-term outcomes related to sustained clearance in older adults with complex skin issues are not fully established in the available evidence base.

Key Studies & References

  1. Clotrimazole (Topical) Monograph for Professionals (StatPearls/NCBI Bookshelf)
  2. Combination Therapy Should Be Reserved as Second-Line Treatment of Onychomycosis: A Systematic Review of Onychomycosis Clinical Trials

Frequently Asked Questions (FAQ)

Common questions about Sinamida (FAQ)


Q: Can Sinamida be taken with common over-the-counter pain relievers?

A: Regulatory information regarding the topical formulation explicitly states that no mandatory timing separation or interactions with food, alcohol, or common over-the-counter products are cited. The primary focus of known drug interactions is on potent enzyme substrates, which are generally a concern with significant systemic absorption.


Q: How does Sinamida compare to other similar medicines on the market?

A: Studies and official information indicate that specific, head-to-head comparative evidence for this exact multi-component fixed-dose combination versus single-agent topical therapies is limited. The combination includes multiple active components, which is intended to target fungal pathogens through different mechanisms.


Q: What happens if I stop taking Sinamida suddenly?

A: Official administration guidelines emphasize that the full prescribed duration of treatment must be completed, even if symptoms improve quickly. Stopping treatment before the recommended time poses the risk of the infection returning or not achieving full clearance, according to regulatory guidelines.


Q: How long does Sinamida stay in your system?

A: The topical preparation results in minimal systemic absorption of the active ingredients into the bloodstream. Because of this minimal absorption, the product’s systemic exposure is generally low.


Q: Will Sinamida affect my ability to drive or operate machinery?

A: Regulatory documents indicate that systemic effects capable of impairing driving or operating machinery, such as drowsiness or dizziness, are not commonly reported for the topical formulation. Reported side effects primarily involve local reactions on the skin.


Q: Is Sinamida safe to take during pregnancy or while breastfeeding?

A: Official documentation states that use during pregnancy and lactation is generally not recommended. The use is conditional and requires a determination that the potential benefit justifies the potential risk, as defined by official regulatory categories. Furthermore, the product must not be applied to the breast area while breastfeeding.


Q: Does Sinamida interact with herbal supplements like St. John's wort?

A: The official product label states no interactions are explicitly cited for herbal products with the topical formulation. However, some ingredients are known to affect certain metabolic enzymes. The combination of this medicine with potent supplements like St. John’s wort is best reviewed against the regulatory caution, which focuses on enzyme pathways.


Q: Can Sinamida affect blood pressure or heart rate?

A: The side effects reported for the topical medicine are predominantly local skin reactions. Adverse cardiovascular events are not commonly associated with its minimal systemic absorption.


Q: Is it normal to feel tired or dizzy after starting Sinamida?

A: Official regulatory documents list systemic effects like fatigue or dizziness as potential side effects for the oral forms of some components. These effects are not commonly listed as reactions for the topical preparation, given the minimal systemic exposure from this route of administration.


Q: What are the potential side effects for the heart when taking Sinamida?

A: Adverse effects primarily focus on local skin issues. Rare or serious cardiac events are typically associated with the oral forms of some components in high-risk patients. Such events are not commonly associated with the minimal absorption achieved via topical use.


Q: Does Sinamida interact with birth control pills?

A: Regulatory information states there is negligible potential for the topical formulation to interfere with the clearance of most systemic drugs. Clinically relevant interactions with hormonal birth control are not commonly reported, consistent with the minimal systemic absorption from the topical application.


Q: What should I do if my symptoms don't improve while on Sinamida?

A: Official regulatory guidelines state that if symptoms show no improvement after the expected duration of treatment, the condition requires re-evaluation by a healthcare professional.


Q: Is Sinamida considered a controlled substance?

A: Sinamida is a multi-component topical antifungal medication. It is not classified as a federally controlled substance by regulatory bodies such as the Drug Enforcement Administration (DEA) or the Food and Drug Administration (FDA).


Q: Is Sinamida safe to use for older adults?

A: Official documents note that while specific clinical data for older adults may be limited, the topical formulation is not generally associated with causing different side effects or problems in older people compared to younger adults.


Q: Can Sinamida be used by children?

A: Use is officially established for adults and adolescents 12 years of age and older. Use in children under 12 years is generally not established in official labeling, and the administration requires explicit dose and duration determination by a qualified prescriber, as the default regimen is not established for this group.


Q: Does Sinamida cause weight gain or weight loss?

A: Official regulatory documents indicate that the reported side effects for the topical formulation are primarily local skin reactions. Weight changes are not listed as common or frequent adverse reactions for this product.


Q: Is it true that Sinamida is sometimes used for conditions other than its main purpose?

A: The medicine is officially indicated only for the conditions listed in its regulatory labeling. Any use for conditions not specified in the official indications is considered off-label and is not supported by the manufacturer’s regulatory documents.


Q: Are there any specific lab tests needed before starting Sinamida?

A: Routine lab testing prior to starting the topical treatment is not typically mandated, according to regulatory guidelines. Testing is primarily associated with the oral forms of some components or in patients with specific underlying conditions.


Q: Can I crush or split Sinamida tablets?

A: Sinamida is exclusively a topical preparation, such as a cream, gel, or solution, that is applied externally to the skin. It does not come in a tablet form intended for oral use, crushing, or splitting.


Q: What is the risk of dependence or addiction with Sinamida?

A: As a topical antifungal preparation, Sinamida has no known risk of physical dependence, tolerance, or addiction. It is not classified as having abuse potential in regulatory documents.


Q: Are there any specific instructions for stopping Sinamida after long-term use?

A: The drug is officially prescribed for a short-term course, typically ranging from 1 to 4 weeks. Regulatory documents do not contain specific instructions for the discontinuation of unintended long-term use, beyond the general warning to complete the prescribed short course.


Q: What should I do if I experience a severe or unexpected reaction to Sinamida?

A: Official patient safety information advises that if signs of a severe hypersensitivity reaction, such as facial swelling or difficulty breathing, occur, the product should be discontinued immediately. Seeking urgent medical attention or emergency services is the appropriate action to take when experiencing a severe or unexpected reaction.


Q: Does Sinamida cause dryness or blurred vision?

A: Dry skin is listed in official documents as an uncommon local reaction at the application site. Blurred vision is not listed as an expected reaction from topical use.


Q: What are the official recommendations regarding the duration of Sinamida use?

A: Official guidelines state the medicine is for a short-term course that generally ranges from one to four consecutive weeks. Some specific dermal infections may necessitate up to eight weeks of continuous application.


Q: Is it necessary to take Sinamida at the same time every day?

A: Administration guidelines advise that the product should be applied at regular intervals to ensure consistent coverage of the affected area. The frequency of application is typically once or twice daily, as specified by the prescriber.


Q: What kind of patient experiences are reported with Sinamida?

A: The most common patient experiences documented in clinical trials and regulatory reports are localized reactions such as itching, burning, and redness at the application site. These application-site reactions are often noted to be more frequent at the beginning of treatment.


Q: Does taking Sinamida affect my immune system?

A: Official documents classify hypersensitivity reactions (allergic responses) as an Immune System Disorder. Official information does not describe the medicine as a general modulator of the overall immune system function.


Q: How is the long-term benefit of Sinamida measured in studies?

A: Studies on topical antifungals primarily focus on short-term outcomes. Long-term benefit is generally measured by tracking the stability of the clinical outcome and focusing on recurrence patterns of the infection after the defined treatment course is finished.

How should Sinamida be stored and disposed of?

How to Store and Dispose of Sinamida?

The official labeling mandates that Sinamida must be stored at Controlled Room Temperature, which is between 20 C to 25 C (68 F to 77 F). The product must be protected from light and moisture, and it is explicitly stated that the medicine must not be frozen.

Protection and Handling

The medicine should be kept in its original, closed container to maintain product integrity. As with all medications, it must be stored out of the sight and reach of children.

Disposal Requirements

Unused or expired Sinamida must be disposed of according to local requirements for pharmaceutical products. It should not be discarded via household trash or flushed down a drain.

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

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