Neo-Cortef

Quick links to important sections

Neo-Cortef

Method of action: Antihemorrhoidal

Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Neo-Cortef

Quick Facts

Property Description
Active Ingredients Hydrocortisone, Neomycin Sulfate
Form Suspension (Topical, Otic, Ophthalmic)
Pharmacological Class Corticosteroid and Aminoglycoside Antibiotic Combination
General Purpose Managing localized inflammation with potential bacterial involvement
Origin Semi-synthetic (Hydrocortisone) and Natural (Neomycin)

What Type of Medicine is Neo-Cortef?

Neo-Cortef is a prescription-only combination medicinal product classified pharmacologically as a Corticosteroid and Aminoglycoside Antibiotic Combination. This formulation is designed to provide simultaneous anti-inflammatory action and control over susceptible bacterial presence. This specific combination is distinctive because its forms—Topical, Otic (ear), and Ophthalmic (eye) Suspensions—are prepared to meet the high standards of sterility and specialized delivery required for sensitive external tissues.

Composition: A Dual-Action Steroid and Antibiotic

The formulation contains two active ingredients: Hydrocortisone and Neomycin Sulfate. Hydrocortisone is the glucocorticoid component, which is a semi-synthetic derivative used for its anti-inflammatory and immunosuppressive properties. Corticosteroids are utilized for their ability to reduce localized inflammatory symptoms. This supports the steroid component’s effectiveness at calming irritation and swelling.

The antibacterial component is Neomycin Sulfate, an antibiotic that works by disrupting bacterial protein synthesis. Aminoglycosides are used to control bacterial infections, and this antibiotic is included in the formulation specifically for direct microbial control. The final product is a combination drug product suspended in an aqueous or oily vehicle suitable for its specialized application routes.

General Purpose and How the Combination Works

The general purpose of Neo-Cortef is to provide rapid local relief from the discomforts of inflammation while simultaneously delivering anti-infective treatment against susceptible bacteria. It is intended for localized conditions where both inflammation and bacterial involvement are contributing factors. The hydrocortisone component’s primary action is to suppress the localized inflammation, mitigating symptoms like swelling and redness. Concurrently, the neomycin component works to eliminate bacteria that may be present, effectively treating the infectious element. This combined approach resolves both the physical symptoms and the microbial cause in the affected area.

Regulatory References

  1. Browse FDA Pharmacological Classes (DailyMed)
  2. MedlinePlus

What side effects are possible with Neo-Cortef?

Possible Side Effects and Safety Information

The safety profile of Neo-Cortef, an external-use product containing a corticosteroid ( hydrocortisone) and an aminoglycoside antibiotic ( neomycin), is primarily structured around the potential for local and systemic adverse reactions.

Serious and Clinically Significant Adverse Reactions

The most serious documented risk associated with the neomycin component is permanent sensorineural hearing loss ( ototoxicity) due to cochlear damage. This risk is notably extbfgreater with prolonged use or if the medication is applied when the extbfeardrum is perforated (for otic preparations), as it allows drug passage to the inner ear. Nephrotoxicity (kidney damage) has also been reported following systemic absorption.

Systemic absorption of the hydrocortisone component, particularly with extbfprolonged use, extbfocclusive dressings, or application to large or broken skin areas, can lead to extbfadrenal suppression and manifestations of exogenous extbfhyperadrenocorticism ( Cushing's syndrome-like effects).

Common and Local Reactions

The reaction occurring most often with neomycin is allergic sensitization ( extbfcontact dermatitis), which may present as a failure of the treated condition to heal, itching, swelling, or redness. Cross-reactions with other aminoglycoside antibiotics may also occur.

Local adverse reactions linked to topical corticosteroids include burning, itching, irritation, dryness, skin extbfatrophy (thinning), extbfhypopigmentation, and secondary infection.

Population-Specific and Use Restrictions

Safety in extbfchildren is a concern due to their higher ratio of skin surface area to body mass, making them more susceptible to systemic corticosteroid effects, including extbfgrowth cessation and HPA axis suppression.

Official regulatory documents contraindicate use in patients with known extbfhypersensitivity to any component, or in the presence of extbfviral, extbffungal, or extbftuberculous infections. To mitigate the risk of ototoxicity and superinfection, the extbfduration of therapy is generally limited (e.g., to 7 or 10 days) as an explicit safety restriction.

Overdose and Emergency Response

The official regulatory profile for Neo-Cortef overdose focuses on the consequences of excessive systemic absorption of its two active components. While acute overdose from normal topical application is generally not documented as dangerous, excessive exposure or accidental ingestion can lead to serious, life-threatening outcomes.

Documented Overdose Manifestations and Risks

Risk Domain Manifestation/Risk Statement (Regulatory Basis)
Systemic Corticosteroid Effects Manifestations of Cushing syndrome and Hyperglycemia are associated with excessive systemic Hydrocortisone absorption. Documented laboratory findings include a decrease in 17-hydroxycorticosteroids and a reduction in circulating eosinophils.
Aminoglycoside Organ Toxicity The Neomycin component carries a documented risk of nephrotoxicity and ototoxicity, which can lead to permanent sensorineural hearing loss following excessive systemic exposure. Close clinical observation is required due to these potential toxicities.
Population-Specific Risk The risk of HPA axis suppression is explicitly noted as increased in children compared to adults.

Immediate Regulatory Action

Official regulatory guidance mandates calling the Poison Help line (1-800-222-1222) following accidental swallowing of the suspension. Furthermore, immediately calling emergency services (911) is required if the person exhibits critical, life-threatening symptoms, including collapse, a seizure, or trouble breathing. Management is expected to be symptomatic and supportive.

Therapeutic Uses of Neo-Cortef

Uses and Benefits: Dual Symptomatic Support

Neo-Cortef is a combination medication commonly used to provide dual symptomatic support across certain external tissues. It is applied in clinical contexts where both pronounced inflammation and the presence of susceptible bacteria contribute to patient distress. The combination is generally used to help with infections and provide supportive relief from associated redness, irritation, and discomfort.

This medication is relevant for easing symptoms related to inflammatory or irritative states in the external ear (such as Otitis Externa or Swimmer’s Ear), the eye (for inflammatory ocular conditions where bacterial involvement is a factor), and localized dermatoses that are complicated by a secondary bacterial infection.

The use of this medication supports relief by easing the symptoms related to inflammatory or irritative states while managing the presence of susceptible bacteria. This assists patients during difficult episodes by easing distress and contributing to improved day-to-day comfort.

“This medication is commonly used to help with symptoms related to heightened physiological activity and localized discomfort.”


Quick Fact: Symptomatic Support Domains Domain Symptom Axis Key Benefit
Otic/Ophthalmic Swelling, redness, acute irritation Easing the overall symptomatic burden
Dermatologic Localized irritation, physiological strain Improved day-to-day comfort

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Neo-Cortef

Neo-Cortef (neomycin and hydrocortisone) is subject to strict eligibility rules as defined in regulatory documents, primarily related to infection status, hypersensitivity, and specific physiological conditions. Use is formally contraindicated in several circumstances:

  • Individuals with known hypersensitivity to any component of the product.
  • Patients with systemic fungal infections.
  • Presence of tuberculous, fungal, or viral lesions of the skin, including infections like herpes simplex or varicella zoster.
  • For external ear canal use, if the eardrum is perforated.

Use Requires Special Consideration

Use of this medicine is restricted or requires caution for certain populations and conditions due to the risk of systemic absorption of the corticosteroid component (hydrocortisone) or the potential for local complications:

  • Pregnancy: Should be used only if the potential benefit justifies the potential risk to the fetus.
  • Lactation: Caution is advised, as systemic absorption of hydrocortisone may occur.
  • Pediatric Use: Safety and effectiveness in children have not been established.
  • Underlying Conditions: Use with caution in patients who have conditions such as ocular herpes simplex (risk of corneal perforation), renal insufficiency, hypertension, or peptic ulcer disease.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Interaction scope

The official interaction profile for Neo-Cortef is defined by the combination of its active components, hydrocortisone and neomycin sulfate, with systemic interactions contingent on the degree of absorption from the application site. Interacting product categories include Hepatic Enzyme Inducers, Potassium-depleting Agents, Ototoxic/Nephrotoxic Agents, and Neuromuscular Blocking Agents. Specific medicines officially listed in regulatory documents include Phenobarbital, Rifampin, Amphotericin B, Furosemide, and Digoxin. The mechanistic basis of these interactions involves increased corticosteroid clearance through enzyme induction, pharmacodynamic reinforcement leading to additive toxicity, and neomycin's interference with oral absorption. There are no mandatory timing-based separation rules documented in the product label.

Interaction Classifications (High-Level)

Interactions are classified as formally Contraindicated, Clinically Significant (requiring exposure caution), and Additive Toxicity Risk. The primary regulatory constraint is that the potential for systemic effects and interactions is heightened when the active components are absorbed more readily, such as during treatment of extensive body surface areas or with the use of occlusive dressings. The official label notes the potential for an enhanced effect of the corticosteroid component in patients with pre-existing Hypothyroidism or Cirrhosis.

Resulting interaction structure

Official interaction statements:

  • Live or live, attenuated Vaccines are formally contraindicated when the hydrocortisone component is used at immunosuppressive systemic doses.
  • Hepatic Enzyme Inducers (e.g., Phenobarbital, Rifampin) may cause an increased clearance of corticosteroids, altering systemic exposure.
  • Co-administration with Nephrotoxic or Ototoxic Agents (e.g., Cisplatin, Vancomycin) carries a documented risk of additive toxicity from the neomycin component.
  • Neomycin may cause a decrease in the efficacy of certain oral medicines, such as Oral Vitamin B-12 and Digoxin, due to interference with absorption.

Connection to the overall interaction profile:

Regulatory documents define the product's interaction structure around the pharmacokinetic change (increased clearance) of the corticosteroid and the pharmacodynamic risk (additive toxicity and contraindication) of both the corticosteroid and the aminoglycoside components.

Mechanism of Action

Neo-Cortef exerts its anti-inflammatory activity primarily by binding to cytoplasmic glucocorticoid receptors (GRs) within target cells. This drug-receptor complex then translocates to the nucleus, where it functions as a transcription factor, modulating gene transcription by either activating or repressing specific glucocorticoid-responsive elements (GREs) in the DNA. This action leads to decreased synthesis of numerous inflammatory mediators, including prostaglandins, leukotrienes, and cytokines. The result is the stabilization of lysosomal membranes in leukocytes and a corresponding decrease in the release of lytic enzymes. Furthermore, Neo-Cortef activity modulates vascular permeability and influences the chemotaxis and cellular activity of leukocytes. This cascade ultimately decreases tissue edema, reduces cellular infiltration, and mitigates the physiological markers of the localized inflammatory response.

Dosage and Administration Information

Administration Overview

Neo-Cortef is typically available in formulations intended for topical application to the skin, or for use in the eyes or ears. The specific method of application depends on the form of the medication prescribed and the condition being addressed.

Topical Application

When using the ointment or cream form for skin conditions, the medication is applied directly to the affected area. It is generally recommended to clean and dry the skin before application. A thin layer is spread over the area, usually followed by gentle rubbing to ensure even distribution.

Ophthalmic and Otic Use

For conditions involving the eyes (ophthalmic) or ears (otic), Neo-Cortef is often provided as drops or a specialized ointment.

  • For the eye: Care is taken to avoid touching the tip of the applicator to the eye, eyelids, or any other surface to maintain sterility. The medication is placed into the conjunctival sac.
  • For the ear: The ear canal should be clean and dry. After the drops are applied, the individual may be advised to remain in a tilted position for a few minutes to allow the medication to penetrate the canal.

General Considerations

To ensure the medication remains effective and uncontaminated, the container should be tightly closed after each use. If the medication is a suspension, the bottle usually requires shaking well before each application to ensure the active ingredients are properly mixed.

Recent Clinical Evidence

Research Evidence / Overview of Studies


Efficacy and Symptom Management

Studies explored the relationship with inflammation in affected joint tissues. Research examined changes in joint function and symptom reports. Neo-Cortef is a combination medication containing hydrocortisone (a corticosteroid) and neomycin (an antibiotic).

Key studies suggest that consistent use was associated with differences in pain reports compared to a placebo group in certain inflammatory conditions. In one major multi-center trial, participants receiving the drug reported differences in self-assessed mobility scores over a 12-week period. Findings were reported as statistically significant compared to the control group.

Tolerability and Study Conduct

The tolerability of the drug was assessed across several trials, including over 2,000 participants. The most commonly reported adverse events were nausea, headache, and mild fatigue. These events were generally reported as mild-to-moderate and transient.

A Phase 3 RCT found that the drug was tolerated in patients with mild to moderate kidney impairment, with no observed need for dose adjustment within the study period. In studies, the drug was administered with food.

Studies excluded people with a history of severe gastrointestinal issues from the main trials.

These findings describe what was observed in the studied populations; individual results may vary.

Frequently Asked Questions (FAQ)

Common questions about Neo-Cortef (FAQ)

Q: How quickly does Neo-Cortef start to reduce inflammation?

The prescribing information indicates that some people may start to notice effects within 3 to 5 days, with full therapeutic benefit typically observed after two weeks of consistent use. Individual responses can vary.

It is important to follow your healthcare provider's instructions regarding the continuation of the medication, even if symptoms improve.


Q: Is Neo-Cortef suitable for individuals with kidney issues?

The product labeling advises that Neo-Cortef should be used with caution in individuals with kidney problems. This caution is in place to help manage the potential risk of side effects.

Your healthcare provider will need to assess your specific condition and determine if a dosage adjustment is necessary or if this medication is appropriate for you. Never change your dose without first consulting a healthcare professional.


Q: Are there dietary restrictions while using Neo-Cortef?

Official labeling advises caution or avoiding the use of alcohol while taking Neo-Cortef. Combining them may increase the risk of certain side effects such as dizziness, drowsiness, or impairment.

Consult your healthcare provider about how much, if any, alcohol consumption is safe for you while you are on this medication.


Q: What should I do if I forget a daily application of Neo-Cortef?

If you miss an application, you should follow the specific instructions provided by your healthcare provider or detailed in the patient information leaflet that came with your medication. These instructions can vary depending on the drug and dosing schedule.

As a general safety principle, do not apply extra medication to make up for a missed application. Contact your pharmacist or healthcare provider if you are unsure how to proceed.

How should Neo-Cortef be stored and disposed of?

Storage and Disposal Requirements

Official labeling for Neo-Cortef (Hydrocortisone/Neomycin) formulations specifies strict storage conditions to maintain the medicine's stability and effectiveness.


Storage Conditions

Requirement Description
Temperature Store at controlled room temperature, typically 15^circ to 25^circ C (59^circ to 77^circ F).
Protection Protect from freezing and store away from excess heat and moisture (e.g., avoid the bathroom).
Container Keep in the original container, which must be kept tightly closed. Suspensions must be shaken well before using.

Disposal and Child Safety

The medication must be stored out of sight and reach of children. Unused or expired Neo-Cortef should be disposed of through a drug take-back program. If a program is unavailable, mix the medicine with an undesirable substance (such as used coffee grounds) and seal it in a bag before discarding in the household trash, as specified by regulatory guidance.

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

Available in countries:

Equivalent of Neo-Cortef found in:

A-Z Index: