Neocort

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Neocort

Method of action: Anesthetic

Treatment option:

Medically reviewed

Laura Arias

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 Neocort

Property Description
Active Ingredients Hydrocortisone, Lidocaine Hydrochloride, Neomycin
Form Topical formulation (Ointment or Cream)
Pharmacological Class Corticosteroid, Local Anesthetic, and Aminoglycoside Antibiotic Combination
Common Purpose Relief of inflammation, pain, and prevention of minor bacterial infection
Origin Synthetic (Multicomponent)

What Type of Medicine is Neocort?

Neocort is a multicomponent drug defined as a topical formulation intended for external application, classified as a combination of a Corticosteroid, a Local Anesthetic, and an Aminoglycoside Antibiotic. This preparation is specifically designed as a combination therapy that integrates three pharmacologically distinct active ingredients into a single pharmaceutical preparation. This formulation type is clinically recognized for providing comprehensive local management, distinguishing it from single-agent creams typically used for isolated symptoms. The composition confirms its role in addressing skin issues complicated by both discomfort and potential bacterial presence.

Composition: The Triple-Action Active Ingredients

The active ingredients in Neocort are Hydrocortisone, Lidocaine Hydrochloride, and Neomycin. The preparation is a synthetic combination. Hydrocortisone is a glucocorticoid that functions as the primary anti-inflammatory agent. Lidocaine Hydrochloride serves as a local anesthetic to provide rapid relief from localized pain and discomfort. This anesthetic component offers a differentiating factor by immediately addressing pain in conditions like severe itching or localized irritation. The third ingredient, Neomycin, is an aminoglycoside antibiotic that acts as a broad-spectrum antibacterial agent, which is essential for protecting the compromised skin barrier.

General Purpose and Synergistic Benefit

The general purpose of Neocort is to offer synergistic relief for localized skin irritations by simultaneously calming inflammation, reducing pain, and guarding against bacterial proliferation. This strategy ensures the user benefits from an integrated therapeutic response, which is crucial for managing skin issues where underlying inflammation has led to painful symptoms and an elevated risk of secondary infection. A typical, neutral use scenario involves applying the cream to small areas of irritated skin where scratching has introduced a low-level risk of bacterial contamination. The effective combination of an anti-inflammatory agent with an analgesic and an antibacterial agent is designed to stabilize the affected area and facilitate a more comfortable healing environment.

Regulatory References

  1. WHO Model List of Essential Medicines
  2. Lidocaine - eEML

What side effects are possible with Neocort?

Possible side effects and safety information

The official safety profile for Neocort, a combination of Hydrocortisone, Lidocaine, and Neomycin, is structured around the documented risks of its three active components, focusing on both local skin reactions and the potential for serious systemic absorption.


Adverse Reaction Categories

Dermatological and Local Effects

Side effects affecting the skin are common or infrequently reported. These may include localized burning, itching, irritation, and dryness. The Neomycin component carries a specific regulatory note regarding allergic sensitization, which may present as a skin rash, redness, or failure of the condition to heal.

Systemic Effects and Serious Adverse Reactions

Serious adverse reactions, though typically rare with proper topical use, are officially documented in regulatory labeling. These risks are generally associated with significant systemic absorption, especially when the product is applied to extensive body surfaces, broken skin, or used under occlusive dressings for prolonged periods.

  • Oto- and Nephrotoxicity: The Neomycin component is associated with the serious risk of permanent hearing loss (ototoxicity) and kidney damage (nephrotoxicity), particularly with prolonged or extensive exposure.
  • Endocrine Effects: The Hydrocortisone component may cause Hypothalamic-Pituitary-Adrenal (HPA) axis suppression or manifestations of Cushing’s syndrome due to systemic absorption.
  • Cardiovascular and CNS Effects: High systemic levels of Lidocaine may lead to serious reactions involving the Nervous System (e.g., convulsions, dizziness) and the Cardiovascular System (e.g., hypotension, bradycardia).

Population and Duration Constraints

Regulatory documents emphasize that pediatric patients are more susceptible to systemic toxicity, including HPA axis suppression. Additionally, safety is officially constrained by duration of use, as prolonged application significantly increases the risk of Neomycin-related ototoxicity and local skin changes such as skin atrophy and striae from the corticosteroid component. The label notes that use in individuals with underlying renal or hepatic impairment increases the risk for component toxicity.

Overdose and Emergency Response

Overdose of the Neocort topical combination is officially documented as resulting from the systemic absorption of its three active ingredients, typically following excessive use, application over large areas, or use on broken skin.

Overdose Manifestations and Complications

System Official Regulatory Findings
Cardiovascular/CNS (Lidocaine) Manifestations include central nervous system (CNS) toxicity (e.g., confusion, seizures, muscle twitching), cardiac effects (arrhythmias, bradycardia, or cardiac arrest), and methemoglobinemia (signs include pale, gray, or blue skin discoloration) [FDA].
Auditory/Renal (Neomycin) Systemic absorption carries the risk of ototoxicity, which can lead to permanent bilateral auditory hearing loss, and nephrotoxicity (kidney damage) [FDA].
Endocrine (Hydrocortisone) Prolonged, excessive use is associated with systemic corticosteroid effects, potentially causing HPA-axis suppression and signs resembling Cushing’s syndrome [FDA].

When to Seek Immediate Medical Help

Regulators mandate that immediate medical attention is required for the onset of serious symptoms. Specifically, patients or caregivers must seek urgent medical assistance for any signs of methemoglobinemia (such as pale or blue skin, headache, or rapid heart rate) to avert more serious central nervous system and cardiovascular consequences. In the event of any suspected overdose or ingestion, official guidance is to contact emergency services or a Poison Control center immediately.

Therapeutic Uses of Neocort

The medication is relevant in contexts involving heightened systemic burden, aiming to ease the overall symptom burden. Such preparations are indicated for the anti-inflammatory and anesthetic relief of symptoms due to various dermatological and anorectal conditions.

It is commonly used across conditions characterized by periods of heightened symptoms and applied in contexts where additional symptomatic support is needed. Specifically, it is relevant for easing the acute manifestations of inflamed dermatoses, eczema, and perianal conditions like hemorrhoids and anal fissures. The primary purpose is relevant for easing symptoms that interfere with daily comfort.

“The supportive action helps manage symptoms that interfere with daily functioning.”

Quick Fact: Support for Symptomatic Relief

Neocort is used for managing symptoms related to inflammatory or irritative states and symptoms that become more disruptive during flare-ups, offering supportive relief when symptoms interfere with routine activities.

Regulatory References

  1. DailyMed Listing

Eligibility and Restrictions for Use

Official Eligibility Status

Use of Neocort (Hydrocortisone, Lidocaine, Neomycin) is defined by official regulatory documents that specify both prohibited and restricted populations.

Classification Status as Defined in Official Labeling
Contraindicated Populations Individuals with a documented hypersensitivity to any component (Hydrocortisone, Lidocaine, or Neomycin).
Infection-Type Restriction Prohibited for skin conditions caused by tuberculosis, fungi, or viruses (e.g., herpes simplex, varicella zoster).
Age-Related Status Safety and effectiveness have not been established in pediatric patients. Children may be more susceptible to systemic toxicity.
Organ/Physiological Restrictions Use requires caution in patients with impaired renal function due to the Neomycin component. Caution is also advised for use in the elderly.
Pregnancy Eligibility The regulatory status is Category C. Use during pregnancy is conditional, permitted only if the potential benefit justifies the potential risk.
Lactation Eligibility Caution should be exercised when administered to a nursing woman.

Eligibility-Related Restrictions

Specific anatomical use is prohibited: the medicine must not be used in the eyes or in the external ear canal if the eardrum is perforated. Furthermore, to limit the risk of systemic effects, the duration of therapy is generally restricted (often no longer than 7 to 10 days).

What should I know about interactions with other medicines?

The interaction profile for Neocort is based on the potential for systemic exposure of its three active ingredients (Hydrocortisone, Lidocaine, and Neomycin) when applied to damaged skin or over large areas. Regulatory documents define these interactions through metabolic and pharmacodynamic effects.

Metabolic Exposure Modification

Co-administration with enzyme inhibitors (such as CYP3A4 inhibitors like itraconazole or erythromycin) is officially documented to increase the systemic concentrations of the Hydrocortisone and Lidocaine components. Conversely, enzyme inducers (such as rifampicin or phenytoin) may cause a reduction in Hydrocortisone concentrations. Grapefruit and grapefruit juice are also officially noted for their potential to increase Lidocaine exposure.

Additive Toxic Effects

Official labeling requires consideration of potential additive toxicity. Concomitant use with other systemic drugs that are neurotoxic, ototoxic, or nephrotoxic carries an elevated risk due to the Neomycin component. Additionally, the Lidocaine component may have additive cardiotoxic effects when combined with Class I and Class III antiarrhythmic agents. Oxidizing agents that can induce methemoglobinemia are also a documented concern.

Population and Timing Constraints

The risk of interaction is documented to be heightened in patients with impaired kidney function, which can reduce the clearance of Neomycin and Lidocaine. No mandatory administration timing or dose separation rules are specified in the official labeling.

Mechanism of Action

How Neocort Works

Neocort is a fixed-dose combination product containing a corticosteroid and an aminoglycoside, each operating through a distinct pharmacodynamic domain to affect cellular processes. The combination results in two independent molecular cascades: anti-inflammatory signal modulation and bacterial protein synthesis inhibition.


Modulation of Inflammatory Signal Transduction

The corticosteroid component acts as an agonist by binding to cytoplasmic glucocorticoid receptors (GR). The activated GR complex then translocates to the cell nucleus, where it modifies gene transcription. This modification suppresses the expression of numerous genes encoding pro-inflammatory mediators, including certain cytokines and prostaglandins. The resulting intracellular consequence is a decrease in the concentration and activity of these inflammatory signaling molecules.


Disruption of Bacterial Protein Synthesis

This domain describes the action of the aminoglycoside component. The compound acts by selectively binding to the 30S ribosomal subunit of susceptible bacteria. This interaction prevents the accurate translation of messenger RNA (mRNA) into polypeptide chains. The mechanistic consequence is the disruption of the translational elongation phase, inhibiting the formation of functional proteins necessary for bacterial cellular integrity and growth.

Dosage and Administration Information

How to Use Neocort

Usage of this multi-component preparation, defined as a combination of a corticosteroid, a local anesthetic, and an antibiotic, adheres to standard protocols for topical dermal products.


Administration Scope

Neocort is formulated for topical application only, available as a cream or an ointment for external use. It is not intended for ophthalmic, oral, or intravaginal routes.

Dosing and Frequency

The standard procedure requires applying a thin film of the preparation to the affected area. This thin layer should be gently rubbed into the skin. The typical regimen specifies administration two to four times daily until improvement is observed, after which the frequency may be reduced.


Treatment Constraints and Duration

Treatment with Neocort is intended for short-term use. The course should generally not exceed seven days without a full professional re-evaluation of the condition. Prolonged continuous therapy is not part of the standard usage protocol.

Population-Specific Guidelines

Specific duration limits apply for children: treatment courses for children aged two years and over are often limited to five to seven days. The product is generally not recommended for infants under two years of age. For older adults, cautious dose selection is advised, and consideration may be given to reduced application frequency due to potential systemic exposure.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Neocort


Evidence Summary for Symptomatic Hemorrhoids

The evidence base for combination drugs of this type, which includes a corticosteroid (like hydrocortisone) and a local anesthetic (like lidocaine), involves studies used in research exploring how symptoms change over time in conditions such as symptomatic hemorrhoids. The studies mainly focused on adult patients with uncomplicated Grade I or II hemorrhoids. Research examined short-term symptom changes over defined time intervals, typically lasting one to two weeks.

In these studies, researchers monitored patient-reported outcomes describing perceived discomfort, focusing on changes in the intensity of localized symptoms such as pain, itching, and bleeding. Findings describe patterns observed in the studies related to the measured change in these patient-reported scores. Long-term outcomes following the use of this type of combination product are not fully established.


Evidence for Inflamed Dermatoses and Eczema

Research has explored topical combinations of a corticosteroid and an antibiotic (such as neomycin) in clinical trials and Systematic Reviews. This type of combination was studied for use in inflamed skin conditions that show signs of secondary bacterial contamination. Research explored short-term symptom changes by monitoring changes in clinical scoring scales that measure the severity of the skin condition, as well as specific outcomes such as measures of bacterial clearance.

Data are still emerging, and certainty remains low regarding the consistent measured difference when adding the antibiotic component over using the topical corticosteroid alone for all measured outcomes related to general eczema severity. Evidence quality varies across studies, and comparative evidence is lacking for how this type of combination performs in the long run.


What Is Still Uncertain About the Research for Neocort

Evidence is limited for long-term outcomes, as most studies focus only on short-term symptom relief. Furthermore, comparative evidence is lacking from large-scale trials that specifically evaluate the triple-active ingredient combination against its dual-component or single-agent alternatives across all studied indications. The specific study results reflect the conditions under which they were conducted and do not determine whether an individual will respond similarly.

Key Studies & References

  1. DailyMed Listing: Hydrocortisone Acetate and Lidocaine Hydrochloride Rectal Cream Label
  2. WHO Model List of Essential Medicines

Frequently Asked Questions (FAQ)

Common questions about Neocort (FAQ)


Q: Is Neocort known to cause weight gain?

Regulatory documents state that the Hydrocortisone component is associated with a risk of systemic absorption, especially with prolonged or extensive use. High systemic levels of this component are associated with conditions like Cushing’s syndrome, which may involve changes in weight or body fat distribution.


Q: Are there any long-term effects of taking Neocort?

Official documents describe that prolonged use increases the risk of certain effects, including skin changes such as skin thinning (atrophy) and stretch marks (striae) due to the corticosteroid. Additionally, there is the potential for serious effects such as hearing or kidney damage (ototoxicity or nephrotoxicity) related to the Neomycin component.


Q: What should I do if I experience a severe side effect from Neocort?

Official labeling describes that if signs of a severe systemic effect or significant local irritation are observed, immediate discontinuation of the medicine is typically noted. The labeling further states that contact with a healthcare professional should be made for guidance regarding any severe reactions.


Q: Is Neocort associated with any risk of dependence or withdrawal?

Official product information includes warnings regarding the possibility of the corticosteroid component causing Hypothalamic-Pituitary-Adrenal (HPA) axis suppression with prolonged or extensive use. Regulatory documents indicate that gradual reduction is sometimes noted in clinical practice to help avoid adverse effects following discontinuation.


Q: How is Neocort different from other medications used for the same purpose?

Neocort is officially described as a fixed-dose combination product. Its composition involves a unique combination of three active ingredients: a corticosteroid to calm inflammation, a local anesthetic to relieve pain, and an aminoglycoside antibiotic to help guard against secondary bacterial infection.


Q: Is Neocort available over the counter, or is it prescription-only?

Due to the nature and strength of its active ingredients, including the corticosteroid and the antibiotic component, Neocort is officially regulated as a prescription-only (Rx) drug.


Q: Can Neocort cause difficulty sleeping or insomnia?

Systemic side effects from the corticosteroid component, when absorbed into the body, have noted sleep problems, including insomnia. If unusual effects are experienced, official labeling notes that consultation with a healthcare professional is advised.


Q: Does Neocort interact with blood pressure medications?

Official documents state that the Hydrocortisone component may potentially cause an elevation of blood pressure if absorbed systemically. Additionally, the Lidocaine component is noted to have possible additive effects when combined with certain antiarrhythmic agents, which are sometimes used for high blood pressure.


Q: Are there any specific foods or supplements to avoid while on Neocort?

Regulatory documentation specifically notes that grapefruit or grapefruit juice may increase the systemic exposure of the Lidocaine component. The Hydrocortisone component may also affect the body's metabolism of certain nutrients, and a discussion of diet with a healthcare professional may be useful.


Q: Can people with kidney problems use Neocort?

Official labeling advises that use requires caution in patients with impaired kidney function. This is due to the potential for reduced clearance of the Neomycin and Lidocaine components, which increases the risk of component toxicity.


Q: Is Neocort suitable for children?

The official labeling states that the safety and effectiveness of Neocort have not been established for the general pediatric population. Children are noted to be more susceptible to systemic toxicity, such a HPA axis suppression.


Q: Are there specific age restrictions for using Neocort?

Regulatory guidelines generally advise against use in infants under two years of age. Treatment duration for children aged two years and older is often restricted, and specific cautious dose selection is advised for older adults.


Q: Can Neocort cause changes in mood or energy levels?

Systemic absorption of the Hydrocortisone component may potentially lead to Central Nervous System effects, including mood changes like confusion or agitation. Unusual tiredness or weakness has also been reported as a potential sign of a systemic effect.


Q: How long does Neocort stay in the body after the last dose?

Pharmacokinetic data shows that the half-life of the Lidocaine component is typically 1.5 to 2 hours. The Hydrocortisone component is generally metabolized in the liver and excreted via the kidneys. Clearance time can vary significantly depending on the application site and duration of use.


Q: Are there known allergic reactions to Neocort?

Use is contraindicated (prohibited) for anyone with a known hypersensitivity to any of the active ingredients. The Neomycin component specifically carries a documented risk of allergic sensitization, which may appear as a worsening rash, redness, or failure of the condition to heal.


Q: Can I drive or operate machinery while taking Neocort?

Official warnings note that high systemic levels of the Lidocaine component may potentially lead to Central Nervous System effects, such as dizziness or confusion. Regulatory documents state that if these effects are experienced due to systemic absorption, there is a risk of impairment, which may affect a person’s ability to drive or operate machinery.


Q: Does Neocort interact with common herbal supplements like St. John's Wort?

General regulatory guidance suggests that the risk of interaction between St. John's Wort and topical medications, such as Neocort, is typically considered low. This is based on the expectation of limited systemic absorption with proper use.


Q: What should I tell my doctor before starting Neocort?

Official regulatory warnings note that certain pre-existing conditions, such as kidney or liver impairment, diabetes, and current fungal or viral skin infections, may be relevant to the use of Neocort. Disclosure of all systemic medications being taken is also noted, due to the risk of additive toxicity and drug interactions.


Q: Can Neocort make certain existing health conditions worse?

Official warnings note the potential for the Hydrocortisone component to worsen pre-existing conditions like diabetes or Cushing's syndrome upon systemic absorption. The product is also restricted from use on skin conditions caused by certain infections (fungal, viral, tubercular).


Q: Does the effectiveness of Neocort change over time?

Prolonged use of the combination product is officially cautioned against. This is due to the potential risk of developing an overgrowth of non-susceptible organisms (including fungi), which may reduce the medicine's effectiveness.


Q: Is there a maximum time someone is advised to take Neocort?

Official documentation advises that therapy should generally be limited in duration, often restricted to no more than 7 to 10 consecutive days. This constraint is linked to the increased risk of Neomycin-related toxicity and systemic effects with prolonged exposure.


Q: What is the difference between Neocort and a generic version?

A generic version must contain the identical active ingredients (Hydrocortisone, Lidocaine, Neomycin) in the same strength and dosage form. It must also meet strict regulatory standards for quality and is considered therapeutically equivalent to the branded product.


Q: Is it normal to feel tired or dizzy when starting Neocort?

Dizziness and unusual tiredness or weakness are potential signs of systemic absorption noted in official labeling. Patient counseling information states that if these symptoms are experienced, consultation with a healthcare professional is noted.

How should Neocort be stored and disposed of?

How to Store and Dispose of Neocort

Storage Conditions

Neocort must be stored at Controlled Room Temperature, specifically between 20^circ to 25 C (68^circ to 77 F). The product must be protected from freezing, excessive heat, moisture, and direct light.

It is required to keep Neocort in its original container, ensuring the container is tightly closed when not in use. For safety, the medicine must be stored securely out of the sight and reach of children.

Disposal Requirements

Unused or expired Neocort should be discarded using an authorized drug take-back program. If a take-back program is unavailable, and the product is not on the FDA's flush list, it must be mixed with an undesirable substance (such as dirt or coffee grounds) and placed in a sealed container before disposal in the household trash. Identifying personal information must be removed from the label before the empty container is discarded.

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

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