Avril

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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 Avril

Quick Facts

Property Description
Active Ingredients Aluminium Acetotartrate, Benzalkonium Chloride, Cod Liver Oil, Zinc Oxide
Form Topical Preparation (Typically ointment or paste)
Pharmacological Class Dermatological Agent, Multi-component
General Purpose Localized skin protection, antisepsis, and soothing
Origin Mixed (Synthetic compounds and naturally-derived oil)

Defining Avril: A Multi-Component Dermatological Agent

Avril is a combination product and a multi-component topical preparation classified as a dermatological agent. This means its therapeutic activity is not reliant on a single substance but is derived from the synergy of four distinct active ingredients delivered directly to the skin surface. The medicine is intended solely for topical administration and is typically formulated within an oily or fatty base, such as an ointment or paste, which is designed to adhere to the skin and provide a lasting effect. As a formulation containing multiple active entities, its use for localized skin relief is clinically recognized by dermatological experts.

Composition: Active Ingredients and Mixed Origin

Avril is characterized by its unique blend of four primary active ingredients: Aluminium Acetotartrate, Benzalkonium Chloride, Cod Liver Oil, and Zinc Oxide. This preparation possesses a mixed origin, integrating synthetic chemical agents like Benzalkonium Chloride with a naturally-derived substance, Cod Liver Oil. The combined use of Zinc Oxide and Aluminium Acetotartrate ensures a protective and astringent action, a property frequently recognized in dermatology literature. This property helps to dry and tighten superficial tissues.

Purpose: Combining Astringent, Protective, and Antiseptic Actions

The primary purpose of Avril is to provide simultaneous astringent, protective, antiseptic, and emollient effects for the localized support of the skin. Benzalkonium Chloride ensures local antimicrobial action by disrupting microbial membranes. This action helps cleanse the application site and prevent the growth of surface microorganisms. Avril's distinct composition, balancing the astringent and antiseptic properties with the emollient nature of Cod Liver Oil, makes it a suitable preparation for general superficial skin support, such as minor skin chafing or simple irritations, where drying and soothing are both beneficial. The preparation is thus designed to maintain the integrity and recovery of the skin surface by addressing irritation through multiple simultaneous mechanisms.

What side effects are possible with Avril?

Possible Side Effects and Safety Information

The safety profile of Avril, based on regulatory documentation, involves monitoring for a range of adverse reactions across several system organ classes. The medicine is authorized primarily for short-term use, and this context governs the overall risk assessment.

Adverse Reactions and Frequencies

Classification Examples of Reactions
Common Nausea, Headache, Insomnia (difficulty sleeping), Dizziness, Tachycardia (increased heart rate), Palpitations, Anxiety, Restlessness, Tremors, and Discomfort when urinating.
Clinically Significant Convulsions and Hallucinations are documented as potentially serious adverse effects that warrant immediate attention.

Key Safety Warnings and Restrictions

Regulatory warnings emphasize specific risks, particularly related to the Paracetamol component and exposure patterns:

  • Overdose Risk: Official regulatory sources explicitly warn that an overdose of this combination product can cause severe, life-threatening liver damage (hepatotoxicity).
  • Contraindication (Alcohol): Due to the increased risk of hepatotoxicity, the concurrent use of this medication with alcohol is strictly contraindicated.
  • Population Considerations: Specific caution is advised for patients with pre-existing conditions that may be exacerbated by central nervous system (CNS) stimulation or cardiovascular effects, such as Tachycardia or Anxiety.
  • Use Limitation: The medicine is intended for short-term use only. Continued administration beyond the resolution of symptoms should not occur unless directed by a healthcare professional.

The regulatory safety structure focuses on clear boundaries—avoiding overdose and alcohol—while managing the predictable, common CNS and cardiovascular effects to maintain the medicine's safety within its authorized short-term use.

Overdose and Emergency Response

The official overdose profile for Avril, a multi-component topical preparation, is centered on the risks associated with accidental oral ingestion. As documented by regulatory authorities, this exposure primarily presents as severe corrosive injury to the gastrointestinal (GI) tract due to the presence of the antiseptic component.

Accidental ingestion can lead to significant manifestations, including nausea, vomiting, stomach pain, and potentially bloody vomit or signs of oropharyngeal edema. Severe, life-threatening outcomes documented in regulatory texts include deep corrosive ulcerations of the esophagus and stomach, as well as acute respiratory distress stemming from chemical pneumonitis or airway swelling. Pediatric cases, specifically in young children, are highlighted in official documents due to the documented risk of severe caustic injury.

In the event of suspected accidental ingestion, regulatory guidance explicitly states that emergency medical help must be sought immediately. Individuals must contact a certified Poison Control Center or call emergency services right away; waiting for symptoms to appear is not recommended. The label strictly advises against inducing vomiting. Overdose management is limited to symptomatic and supportive treatment, as no specific antidote is known, and often requires immediate hospital observation for monitoring vital signs and cardiac activity, potentially involving endoscopy to assess corrosive damage.

Therapeutic Uses of Avril

The therapeutic area for this preparation is associated with symptom-focused domains documented by official health resources. Such formulations are considered relevant for symptomatic relief across conditions presenting with localized discomfort.

Avril is primarily applied for managing symptoms related to minor skin irritation, redness, pain, and itching, and is relevant in contexts involving moisture-related breakdown in conditions like diaper dermatitis (diaper rash) and chafing. It is also relevant for easing symptoms associated with superficial epidermal damage, including minor cuts, scrapes, and severely chapped skin.

Soothing Discomfort and Supporting Stability

This preparation is commonly used to help manage symptoms related to inflammatory or irritative states. Avril supports patients during difficult episodes by easing distress, and may assist with managing symptoms that interfere with daily comfort.

“It is commonly used to support symptom management in scenarios involving acute episodes of skin irritation and moisture exposure.”

The product is applied in clinical settings that involve acute or disruptive symptom patterns, and offers symptomatic relief that helps patients cope more steadily.


Quick Fact: Relief for Localized Skin Distress

Therapeutic Area Primary Symptom Focus
Symptom Relief Redness, Minor Pain, Itching
Moisture Contexts Wetness, Friction, Chafing
Supportive Care Minor Cuts, Scrapes, Chapped Skin

Regulatory References

  1. NIH National Library of Medicine DailyMed Service

Eligibility and Restrictions for Use

Who Can and Cannot Use Avril?

This section outlines the official eligibility requirements and contraindications for Avril (naltrexone and related formulations) based on governmental regulatory documents. Avril must not be used by individuals who:

  • Are currently receiving opioid analgesics or have a physical dependence on opioids (including a positive opioid urine screen or failed naloxone challenge test).
  • Are experiencing acute opioid withdrawal symptoms.
  • Have acute hepatitis or hepatic failure (severe liver disease).
  • Have a known hypersensitivity or allergy to naltrexone or any other components in the product.

Restrictions and Special Populations

Population Eligibility Classification Restriction Context
Pregnancy Use with caution / Category C Decision requires weighing potential benefits against risks to the fetus.
Breastfeeding Use with caution Small amounts are excreted in milk; decision requires individual risk-benefit discussion.
Pediatrics (<18 yrs) Use not established Safety and efficacy have not been established in patients under 18 years of age.
Kidney/Liver Impairment Use with caution Caution is advised due to slower removal of the medicine from the body. Monitor closely.

All patients must be opioid-free for at least 7 to 10 days before beginning treatment to prevent severe opioid withdrawal.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Interaction data for Avril, a multi-component topical preparation, are derived from official government regulatory sources and focus primarily on local and physicochemical incompatibilities rather than systemic drug interactions. Due to the minimal systemic absorption of its active ingredients—Aluminium Acetotartrate, Benzalkonium Chloride, Cod Liver Oil, and Zinc Oxide—systemic pharmacokinetic interactions are not officially documented.


Documented Interaction Profile

Category Regulatory Statement Type of Interaction
Physicochemical Incompatibility The antiseptic component, Benzalkonium Chloride, may be locally inactivated by soaps or anionic detergents. Local Antagonism
Timing Requirements If a product containing Avril’s components is used in an ophthalmic context, application must be separated by at least 5 minutes from other topical ophthalmic products. Procedural Constraint
Population Caution The Benzalkonium Chloride component is documented to cause discoloration of soft contact lenses. Contact Incompatibility

Systemic Interaction Status

No contraindicated combinations, systemic metabolic interactions (e.g., CYP-mediated effects), or exposure-altering interactions are documented in regulatory labeling for this topical preparation. Similarly, no interactions with food, alcohol, or herbal products are officially noted.

Mechanism of Action

How Avril Works

Avril's mechanism involves the coordinated action of four components, employing distinct physicochemical processes to modulate the local environment and physiology of the skin surface.

Mechanistic Domain: Surface Lysis and Antisepsis

The antiseptic action is rooted in the molecular function of Benzalkonium Chloride, a cationic surfactant. This ingredient specifically targets the anionic phospholipid and protein structures of microbial cell membranes. By binding to these sites, it disrupts the integrity of the membrane, leading to the leakage of intracellular contents (lysis) and the rapid reduction of the surface microbial load. This action precedes subsequent processes.

️ Mechanistic Domain: Physical Barrier, Occlusion, and Astringency

Two complementary mechanisms govern protection and tissue stabilization. Zinc Oxide and Cod Liver Oil combine to create an inert, occlusive physical barrier over the skin, which physically separates underlying nerve endings and tissues from external physical and chemical substances. Concurrently, Aluminium Acetotartrate works via protein coagulation, causing a mild condensation and tightening of the superficial tissue, which limits the outflow of tissue fluid and exudates. This integrated approach balances the drying and protective functions to influence the local physiological environment. This barrier further modulates the hydration levels of the stratum corneum and influences the local process of re-epithelialization.

Dosage and Administration Information

Administration Scope

Avril is officially designated for topical (dermal) application only, strictly limiting its administration to the skin surface for localized use. General guidelines emphasize that the preparation must be applied as a thin, even layer sufficient to cover the entire affected area. The application site must be clean and dry prior to use to ensure proper contact of the combination of active agents.


Frequency and Use Context

Dosing is classified as an as-needed/intermittent pattern, typically specified as one to three times daily, or as required to maintain protective coverage. This regimen reflects the medicine's designation for short-term use, limiting its application to the duration of the acute irritative episode.


Procedural Rules and Restrictions

The official use protocol includes mandatory procedural conditions, specifically emphasizing thorough hand hygiene, requiring hands to be washed both before and after use. The preparation is strictly for external use only, and explicit instructions state that contact with sensitive tissues, such as the eyes and mucous membranes, must be avoided. Furthermore, the labeling provides for pediatric use, including application contexts relevant to infant care, reflecting an approved age-group administration rule without requiring specific systemic dose adjustments.

Recent Clinical Evidence

Research evidence / Overview of studies for Avril

The research base for Avril, a multi-component topical preparation, centers on the established use of its key ingredients, such as Zinc Oxide and Cod Liver Oil. These components were evaluated for their role in skin protection and localized skin support. The available evidence, consisting mainly of Randomized Controlled Trials (RCTs) and systematic reviews of similar formulations, describes patterns observed in studies involving formulations with similar core components.


Evidence for Diaper Dermatitis and Skin Barrier Support

Research has explored formulations containing Avril's core barrier components, like Zinc Oxide, in the context of diaper dermatitis (diaper rash), which is a condition characterized by fluctuating or episodic manifestations. Short-term RCTs and systematic reviews were used in research exploring how symptoms change over time for this indication. These studies included infants and newborns as well as some trials involving older patients in care settings with related skin irritation.

Studies monitored outcomes related to physical discomfort, such as changes in the severity score of the dermatitis and the time to reach a pre-defined level of clinical change. Findings describe patterns observed in the studies where changes in skin redness and inflammation were measured in observed populations. The overall evaluation of the specific combination is based on extrapolation from the existing, long-standing data related to its primary barrier components.


Duration of Study Follow-up and Areas of Uncertainty

The typical follow-up durations were limited in the key clinical trials, ranging from a few days up to approximately eight weeks. This short-term focus means that findings help contextualize how patients reported their experience, but research does not determine whether an individual will respond similarly after extended use.

Long-term effects are not fully established regarding research related to long-term skin barrier outcomes. The most significant limitation is that the full, specific four-component formulation of Avril has not been extensively evaluated in dedicated RCTs. The lack of specific comparative evidence means the full extent of any potential synergy between the four components remains an area where more research is needed.

Key Studies & References

  1. Elucidating the role of zinc oxide in dermatitis of varied etiology across the age spectrum: a comprehensive review
  2. Diaper Dermatitis (Diaper Rash) Treatment & Management - Medscape Reference
  3. Pharmaceutical uses of Benzalkonium Chloride

Frequently Asked Questions (FAQ)

Common questions about Avril (FAQ)


Q: Are there any specific foods or drinks I should avoid while taking Avril?

A: Official product information indicates that the use of this medication concurrently with alcohol is contraindicated due to the associated risk of severe liver damage (hepatotoxicity). Regulatory sources do not note any specific interactions with common foods or herbal products for this topical preparation.


Q: What is the purpose of the inactive ingredients in Avril?

A: Avril is typically prepared using an oily or fatty base, which acts as the main inactive vehicle. This base is designed to help the preparation adhere to the skin and provide a protective layer, which supports the overall intended actions of the active ingredients.


Q: How is Avril stored and what is its expiration date?

A: Avril is required to be stored at controlled room temperature, generally between 20 C and 25 C (68 F and 77 F). Official guidelines also state that it must be protected from light and excessive moisture. The specific expiration date is determined by the manufacturer and is found on the product’s official regulatory labeling.


Q: What age group is Avril typically prescribed to?

A: Official labeling includes provisions for pediatric use, with application contexts relevant to infant care, such as diaper dermatitis. It is noted that the safety and efficacy of the preparation have not been established in patients under 18 years of age.


Q: Are there any known interactions between Avril and common over-the-counter pain relievers?

A: Official warnings state that an overdose of this combination product can cause severe, life-threatening liver damage (hepatotoxicity). This safety information is provided due to the risk of unintentional overdose when combined with other over-the-counter medications containing similar components.


Q: Do studies show that Avril is effective for the approved uses?

A: The overall evaluation for this combination product is described as being based on extrapolation from the long-standing data related to its core barrier components, such as Zinc Oxide. Studies have monitored outcomes related to changes in skin redness and inflammation observed in study populations.


Q: Is the research evidence for Avril considered strong?

A: Official summaries of the research indicate that follow-up durations in key clinical trials were often limited to approximately eight weeks. The full, specific four-component formulation has not been extensively evaluated in dedicated studies, and the full extent of the potential synergy between its components remains an area where further research is relevant.


Q: Does Avril interact with birth control pills?

A: Due to the minimal systemic absorption of its active ingredients when applied topically, systemic pharmacokinetic interactions are not officially documented in the regulatory labeling for Avril. This classification means no interactions related to birth control pills have been officially noted.


Q: Can Avril cause changes in mood or behavior?

A: The official safety profile notes that common adverse reactions related to the central nervous system (CNS) include Anxiety and Restlessness. These are documented mood or behavioral changes associated with the medication.


Q: Is it true that Avril can interact with grapefruit?

A: Official regulatory labeling for this topical preparation does not note any specific interactions with food, alcohol, or herbal products, which would include grapefruit.


Q: Is Avril an antibiotic or a steroid?

A: Avril is classified as a multi-component topical preparation and a dermatological agent. One of its active ingredients, Benzalkonium Chloride, is a cationic surfactant that provides a local antiseptic action by reducing the microbial load on the surface of the skin. The medication is not classified as a steroid.


Q: Is Avril considered a high-risk medication?

A: Official regulatory sources highlight specific risks, including an explicit warning that an overdose of this combination product can cause severe, life-threatening liver damage (hepatotoxicity). This information requires clear communication and patient education to ensure safe use.


Q: Is it common to feel tired when starting Avril?

A: Fatigue or tiredness is not listed among the common or clinically significant adverse reactions documented in the official safety profile for the product.


Q: Can Avril affect my ability to drive or operate machinery?

A: The safety profile lists common adverse reactions related to the central nervous system (CNS) including Dizziness, Insomnia (difficulty sleeping), and Tremors. Official product information is the source for specific warnings regarding activities like driving or operating machinery.


Q: Can men and women both use Avril for the same condition?

A: The official eligibility requirements and contraindications for the use of Avril for its approved conditions are not dependent on the patient’s gender.


Q: Can Avril be cut in half or crushed?

A: Avril is formulated as a Topical Preparation, typically an ointment or paste, and is intended for application to the skin. It is not manufactured as a solid oral form (like a tablet or capsule) that can be cut or crushed.


Q: What types of allergic reactions are associated with Avril?

A: A known hypersensitivity or allergy to any of the components in the product is listed as a contraindication for use. This means patients with a documented allergy to any ingredient should not use the product.


Q: What does 'Black Box Warning' mean in the context of Avril's safety information?

A: While not explicitly named a 'Black Box Warning,' official regulatory sources provide a strong warning that an overdose of this combination product can cause severe, life-threatening liver damage (hepatotoxicity). This statement communicates the potential for this severe outcome. The intent is to clearly communicate this key risk associated with the product.

How should Avril be stored and disposed of?

Official Storage and Disposal Instructions

Avril must be stored at controlled room temperature, which is typically between 20 C and 25 C (68 F and 77 F), as defined by regulatory standards. The topical preparation must be protected from both light and excess moisture, and it should not be frozen or exposed to excessive heat. To maintain product stability, always keep the medicine in its original container with the cap or closure tightly closed.

Safety and Disposal

A critical requirement is to store Avril out of the sight and reach of children and pets at all times. For disposal, unused or expired product should not be flushed down the toilet, as it is not on the official flush list. The preferred disposal method is using a community drug take-back program. If this is unavailable, the medicine should be mixed with an unappealing substance, sealed in a bag, and then placed in the household trash.

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

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