Predilone

Quick links to important sections

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 Predilone

What is Predilone?

Predilone is a pharmaceutical formulation containing prednisolone, which belongs to a class of medications known as corticosteroids (or glucocorticoids). It is a synthetic analog of the hormones produced naturally by the adrenal glands, specifically cortisol.

Mechanism of Action

Predilone works by interacting with specific receptors within cells to modify the body's immune response and reduce inflammation. It suppresses the production of substances that trigger inflammatory processes, such as prostaglandins and leukotrienes, and reduces the activity of the lymphatic system. This action helps to decrease swelling, redness, and pain associated with various medical conditions.

Primary Uses

As a versatile anti-inflammatory and immunosuppressant, Predilone is utilized across several medical fields to manage a wide range of conditions, including:

  • Allergic States: Management of severe allergic reactions, bronchial asthma, and contact dermatitis.
  • Dermatological Diseases: Treatment of inflammatory skin conditions such as psoriasis or severe eczema.
  • Endocrine Disorders: Replacement therapy in cases where the adrenal glands do not produce enough natural hormones.
  • Gastrointestinal Diseases: Management of systemic symptoms in ulcerative colitis and Crohn's disease.
  • Hematologic Disorders: Treatment of certain blood disorders, including acquired hemolytic anemia.
  • Rheumatic and Autoimmune Disorders: Reduction of inflammation in rheumatoid arthritis, systemic lupus erythematosus, and acute gouty arthritis.

Clinical Role

Predilone is primarily used to manage symptoms rather than cure the underlying cause of a disease. By controlling the inflammatory response, it helps prevent tissue damage and improves the quality of life for patients with chronic inflammatory or autoimmune pathologies.

Regulatory References

  1. Prednisolone - StatPearls - NCBI Bookshelf

What side effects are possible with Predilone?

Predilone: Possible Side Effects and Safety Information

Predilone, a systemic corticosteroid, is associated with a wide range of documented adverse reactions, which often relate to the dose and duration of therapy.

Adverse Reaction Scope

Common adverse reactions include fluid retention, increased appetite, weight gain, blood pressure elevation, and changes in mood or behavior such as insomnia or nervousness. Alterations in glucose tolerance, including hyperglycemia, are also frequently observed.

Clinically significant and serious adverse reactions include peptic ulcer with potential perforation and hemorrhage, adrenal suppression (Hypothalamic-Pituitary-Adrenal axis suppression), and increased risk of infection, as signs of infection may be masked. Long-term use is strongly associated with decreased bone density (osteoporosis) and fracture risk, aseptic necrosis of bone, posterior subcapsular cataracts, and glaucoma.

Adverse reactions are classified based on regulatory documents. Reactions with a frequency of Common are documented, while others are listed with an Incidence not known (e.g., specific dermatologic or systemic effects like abnormal fat deposits).

Safety Considerations and Restrictions

Predilone is contraindicated in patients with systemic fungal infections. The drug must not be discontinued abruptly, particularly after prolonged use, due to the risk of acute adrenal insufficiency or a withdrawal syndrome. Dosage reduction must be gradual.

Population-specific risks include slowed growth and development in pediatric patients and an increased risk of severe adverse effects in geriatric patients due to co-morbidities. Use during the first trimester of pregnancy carries a risk of fetal harm.

Patients should be closely monitored for changes in blood pressure, signs of infection, bone density, and intraocular pressure if therapy is long-term.

Overdose and Emergency Response

Overdose Manifestations and Complications

Overdose with Predilone may present with severe clinical manifestations documented in regulatory sources. Acute central nervous system events such as seizure, collapse, unconsciousness, or significant trouble breathing are noted as potential outcomes. Physiological findings often include notable fluid and electrolyte disturbances, specifically sodium and fluid retention alongside potassium loss that can result in hypokalemic alkalosis. Due to these imbalances, severe or life-threatening outcomes can include cardiac complications, pronounced changes in heart rhythm, and the development or exacerbation of hypertension or congestive heart failure. The potential for these serious effects is explicitly linked to exposure to large doses.

When to Seek Emergency Help

Immediate medical attention is required for any suspected overdose. Regulatory guidance mandates contacting emergency services (e.g., 911) immediately if an individual is unconscious, seizing, has collapsed, or is experiencing difficulty breathing. The Poison Help hotline is also a documented resource for general overdose guidance. This urgent action is required due to the severity of the potential complications.

Required Supportive Measures

Management of overdose is documented as symptomatic and supportive. The official profile indicates the need for close observation under hospital observation rules, including continuous monitoring of vital signs. Specific procedures, such as ECG (electrocardiogram), blood and urine tests, and sometimes a Chest X-ray, are listed as required measures for clinical assessment. No specific antidote is documented in the official prescribing information.

Therapeutic Uses of Predilone

What Predilone Treats: Main Uses and Benefits

Predilone is commonly applied in clinical settings that involve an inflammatory response throughout the body, providing supportive relief for a variety of conditions. It is relevant in domains involving systemic discomfort, such as rheumatic and autoimmune diseases, severe allergies, and conditions requiring hormone replacement therapy. The medication helps relieve pronounced manifestations like widespread swelling, pain, redness, and stiffness. Its therapeutic areas of use include a primary role in managing inflammatory, autoimmune, and allergic disorders.

In scenarios where symptoms become temporarily overwhelming, it supports the patient by easing the overall symptom load. It is commonly used during episodic or acute flare-ups associated with chronic conditions, contributing to improved comfort during these periods of heightened symptoms.

“Supportive relief may assist with helping patients cope more steadily with temporary functional strain and distress associated with periods of heightened symptoms.”

This approach is relevant for easing symptoms linked to conditions such as asthma exacerbations, certain severe skin disorders, and critical allergic reactions. It assists with supporting functional stability when symptoms interfere with routine activities.

Quick Fact: Relief for Inflammation-Related Discomfort

Eligibility and Restrictions for Use

Predilone's eligibility is determined by official regulatory documentation defining established populations and absolute prohibitions.

Category Eligibility Status (Regulatory Wording)
Approved Use Established in adults and elderly populations; also approved for pediatric patients for many indications.
Absolute Prohibited Contraindicated in patients with known hypersensitivity to the drug or its components. Systemic use is contraindicated in patients with systemic fungal infections or cerebral malaria.
Conditional Use Patients with renal or hepatic impairment require caution and monitoring due to potential changes in drug clearance. Long-term systemic use in children is not recommended due to the risk of growth retardation.
Reproductive Status Use during pregnancy is permitted only if the potential benefit justifies the potential risk. Lactation requires a decision to discontinue nursing or discontinue the medication.
Activity Restriction Individuals receiving immunosuppressive doses must not be administered live or live attenuated vaccines.

The eligibility profile is structured around these governmental classifications, ensuring that the medicine is reserved for populations where use is established or where the benefits outweigh documented risks under conditional use, while absolutely prohibiting use in contraindicated populations.

What should I know about interactions with other medicines?

Predilone (prednisolone) can interact with numerous prescription and nonprescription medicines, as well as certain foods and supplements. These interactions can potentially alter the effect of Predilone or the other substance, or increase the risk of serious side effects. It is essential to inform your healthcare provider about all medications, vitamins, and herbal products you are taking.

Medications That Can Increase Side Effects

Combining Predilone with the following drugs may increase the risk of side effects, such as gastrointestinal bleeding, ulcers, or changes in blood chemistry:

  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): Medications like aspirin and ibuprofen.
  • Diuretics: Specifically, those that lower potassium levels (e.g., furosemide), increasing the risk of hypokalemia and heart rhythm issues, particularly with concurrent use of Digoxin.
  • Certain Antifungals: Agents like ketoconazole can slow the metabolism of Predilone, leading to higher levels and increased risk of steroid-related side effects.

Medications That Can Affect Predilone's Efficacy

Some medicines can decrease the effectiveness of Predilone by speeding up its removal from the body, potentially requiring a dosage adjustment:

  • Certain Anti-Seizure Medications: Examples include phenobarbital and phenytoin.
  • Rifampin: An antibiotic used to treat tuberculosis.

Conversely, some medications, such as Estrogens (including birth control pills), can slow the breakdown of Predilone, which may increase its effect.

Key Drug Interaction Categories

Concomitant Drug Category Potential Result
Anticoagulants (e.g., Warfarin) Inconsistent blood-thinning effect; requires frequent blood tests.
Diabetes Medicines Predilone may raise blood sugar; dose adjustments of diabetes medication may be necessary.
Vaccines Live virus vaccines should be avoided due to the immunosuppressive effects of Predilone.

Avoid taking Mifepristone with Predilone, as it can block the steroid's intended effect. Furthermore, the use of St. John's wort or grapefruit juice is generally not recommended as they may alter the medication's activity.

Mechanism of Action

How Predilone Works

Predilone, through its active form Prednisolone, exerts its effect by influencing the body's genetic programming and cellular signaling pathways. This mechanism results in anti-inflammatory and immunosuppressive physiological changes.


Modulating Gene Expression via the Glucocorticoid Receptor

Prednisolone acts as an agonist at the intracellular Glucocorticoid Receptor (GCR). The resulting drug-receptor complex enters the nucleus and modulates gene expression through transactivation (increasing anti-inflammatory protein synthesis) and transrepression (suppressing pro-inflammatory transcription factors like NF-κB). This core mechanism provides the foundational modulation of immune signaling.


Interruption of the Arachidonic Acid Cascade

The mechanism effectively blocks the activity of Phospholipase A2 (PLA₂) by increasing the production of the indirect enzyme inhibitor Lipocortin-1. This step interrupts the cascade at an early stage, halting the synthesis of major inflammatory mediators like prostaglandins and leukotrienes, resulting in attenuated tissue-level responses and reduced fluid extravasation.


Functional Suppression of Cellular Immunity

The drug's genomic actions suppress the activity, proliferation, and ability of T-lymphocytes, monocytes, and eosinophils to migrate to sites of response. This reduction in the functional capacity and traffic of circulating immune cells contributes to the final immunosuppressive physiological outcome.

Dosage and Administration Information

How Predilone is Used: Official Administration Guidelines

This section describes the high-level principles for administering Predilone (Prednisolone) as outlined in regulatory documentation, strictly excluding information on mechanism, therapeutic effects, and safety.


Administration Scope

Property Official Instruction
Route of Administration The approved routes are oral for systemic treatment and topical ophthalmic for local eye treatment.
Dosing Schedule (Adult) Initial adult oral doses generally range from 5 mg to 60 mg daily, adjusted based on patient response. The goal is to establish the lowest effective maintenance dose.
Timing in relation to meals Oral forms should be taken with food or milk to mitigate potential gastrointestinal discomfort.
Preparation Requirements Ophthalmic suspensions must be shaken well before use. Oral liquids require measurement with a calibrated dosing device.
Age-group Administration Rules Pediatric oral dosing is typically calculated based on body weight (mg/kg) or body surface area. Official labeling for certain ophthalmic products notes that use in children is not recommended.
Special Procedural Conditions For long-term oral therapy, the label mandates that discontinuation must involve gradually reducing the dose (tapering). Certain tablets, such as enteric-coated forms, must be swallowed whole and not crushed.

Resulting Procedural Structure

The regulatory use protocol establishes specific handling requirements for administration. For oral intake, the timing of the dose with food is a required contextual factor. Liquid and suspension forms mandate shaking or precise measurement for correct dosing. Furthermore, the protocol strictly defines the gradual reduction schedule that must be followed when discontinuing the medicine after extended use, representing a key procedural constraint on its overall use.

Recent Clinical Evidence

Research evidence / Overview of Studies for Predilone

Evidence for use in Chronic Systemic Inflammatory Diseases

This section will summarize the types of Randomized Controlled Trials (RCTs), comparative studies, and long-term observational research available for chronic conditions like Rheumatoid Arthritis (RA) and Inflammatory Bowel Disease (IBD). It will focus on what studies tracked, such as changes in disease activity and objective measures of inflammation.

Research examined conditions characterized by fluctuating or episodic manifestations such as RA. Studies explored how outcomes related to physical discomfort and systemic functional imbalance evolve over time. Studies in adults used RCTs and long-term observational cohorts to measure changes in patient-reported outcomes and functional status. Research monitored populations to measure outcomes related to radiographic progression (indicators of joint damage) over multiple years. Studies monitored outcomes reflecting daily functioning and activity level, and reported measured changes within the observed populations.

For Inflammatory Bowel Disease (IBD), research focused on studies conducted during phases of heightened symptom activity relevant to the induction phase of the condition. Studies explored short-term symptom changes to measure outcomes related to Clinical Remission, an outcome defined by specific symptom scores. Researchers also utilized endoscopy to track outcomes linked to inflammatory or irritative states within the digestive system. These studies mainly involve adult populations and research provides insight into short-term changes during the most severe phases of the condition.

Evidence for Acute Flare-ups and Localized Inflammation

This part outlines the research landscape—including systematic reviews and acute management trials—that examined the drug's use during severe exacerbations of inflammatory airway diseases and in conditions requiring localized control, such as certain severe allergic and ophthalmic conditions. The focus is on the design and endpoints of studies related to rapid symptom tracking and acute episode management.

Predilone was evaluated in research exploring short-term symptom changes associated with conditions involving periods of heightened symptoms, such as acute exacerbations of asthma and Chronic Obstructive Pulmonary Disease (COPD). The research utilized Systematic Reviews and controlled trials to monitor outcomes describing episodic or acute changes. Studies tracked patient outcomes related to temporary physiological strain or stress, including the duration and severity of symptoms and the frequency of subsequent hospitalizations. Findings describe patterns observed in the studies related to the time course of symptom activity.

For severe allergic conditions and localized inflammation in the eye (using ophthalmic forms), the evidence was studied for its role in managing these acute, time-limited episodes. Research describes the outcomes monitored, which focused on the control of severe, systemic allergic symptoms or the resolution of local outcomes linked to inflammatory or irritative states. The evidence contributes to the broader evidence landscape.

A key limitation here is that the focus of many studies is on the initial rapid response, meaning there is limited information for long-term outcomes regarding the durability of the effect or symptom patterns long after the acute course has ended. Furthermore, data are still emerging to examine and evaluate the outcomes associated with repeated use for individuals prone to frequent acute flare-ups.

Key Studies & References

  1. Corticosteroids in Rheumatic Diseases: A review of clinical efficacy and safety
  2. Oral corticosteroids for acute asthma exacerbations in children
  3. Systemic Corticosteroids for Acute Exacerbations of COPD: A Systematic Review and Meta-Analysis

Frequently Asked Questions (FAQ)

Common questions about Predilone (FAQ)


Q: Are there any dietary restrictions I need to know about when using Predilone?

According to official product information, the oral form of this drug is typically taken with food or milk to help reduce the potential for stomach irritation. While broad dietary restrictions are not specified, official information indicates avoiding the use of grapefruit juice or St. John's wort, as these may alter the drug’s activity.


Q: Can I take Predilone if I also take a common over-the-counter pain reliever?

Official documents state that taking this drug alongside Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), such as ibuprofen or aspirin, can increase the documented risk of serious gastrointestinal side effects like ulcers or bleeding. Regulatory documents emphasize the importance of communicating all medications used to a healthcare provider.


Q: Is it typical to feel tired when first starting Predilone?

While common side effects like nervousness or insomnia are frequently reported, official adverse reaction lists also note the possibility of feelings of fatigue, weakness, or general malaise. These are documented as potential effects that may be experienced during treatment.


Q: Does Predilone interact with common vitamins or supplements like Vitamin D?

Regulatory warnings advise that vitamins, supplements, and herbal products may interact with this drug and potentially change its activity. Regulatory warnings highlight the importance of informing a healthcare provider of all supplements used.


Q: Is Predilone safe to use for a long period of time?

Official information indicates that long-term use requires careful and close monitoring by a healthcare provider. This is because there is a documented risk of serious side effects, including bone density loss (osteoporosis) and eye conditions like cataracts. Official guidance emphasizes the use of the lowest effective dose for the shortest duration necessary.


Q: Is Predilone commonly prescribed for autoimmune disorders?

This medication is officially indicated for treating a wide range of inflammatory and autoimmune conditions. These include chronic systemic diseases like rheumatoid arthritis and inflammatory bowel disease, where its anti-inflammatory and immunosuppressive properties are utilized.


Q: Does taking Predilone with food change how it works?

According to clinical pharmacokinetic data, taking the oral form with food delays the time it takes to reach peak concentration in the bloodstream. However, this delay generally does not change the total amount of the drug absorbed by the body, meaning the overall systemic exposure is sustained.


Q: Are the reported side effects for Predilone different based on the dosage?

Official product information notes that the frequency and potential severity of certain side effects are related to the dose and duration of therapy. Specifically, the risk of certain adverse effects, such as infection or sleep disturbance, has been observed to increase with higher dosages.


Q: Can Predilone be taken alongside high blood pressure medication?

Regulatory documents state that this drug may cause elevated blood pressure and can interact with some blood pressure medications, particularly diuretics that deplete potassium. Regulatory documents note that co-administration may require monitoring and potential dose adjustments of those drugs.


Q: Are there known interactions between Predilone and herbal teas?

Official warnings caution against the use of certain herbal products because they may alter how the medication works. For instance, St. John’s wort is specifically advised against. Official product information suggests discussing all herbal products with a healthcare provider.


Q: How quickly does Predilone start working for inflammation?

Official pharmacokinetic data shows that the oral form is quickly absorbed. The peak concentration of the drug in the bloodstream, which is associated with the anti-inflammatory action, typically occurs within one to two hours after the dose is administered.


Q: How long do the effects of Predilone last after I stop taking it?

Although the drug itself is eliminated relatively quickly, its biological effects within the body, such as the suppression of the adrenal glands, can persist for 18 to 36 hours or sometimes longer. Due to this sustained biological effect, the official administration guidelines define a process for gradually reducing the dose.


Q: Is Predilone the same as or similar to (a different common drug name)?

This medication belongs to the high-level pharmacological class known as glucocorticoids, which is a type of corticosteroid. It is a synthetic compound that mimics the effects of the body’s natural steroid hormone, cortisol.


Q: Are there any known interactions between Predilone and alcohol?

While alcohol is not explicitly listed as a drug-drug interaction, official warnings note that this medication is associated with an increased risk of peptic ulcers and gastrointestinal hemorrhage. Regulatory documents mention the potential for gastrointestinal hemorrhage, and alcohol may contribute to this risk.


Q: What does the term 'systemic effects' mean in relation to Predilone?

The term systemic effects indicates that the drug is absorbed and exerts an effect on the entire body, rather than just a specific local area. It is used for treating conditions across multiple body systems because it exerts an effect throughout the body.


Q: Are there generic versions of Predilone available?

Yes, the active ingredient, prednisolone, is available in FDA-approved generic versions. These include various formulations such as oral tablets and oral solutions.


Q: How is Predilone eliminated from the body?

According to pharmacokinetic data, the drug is metabolized by the liver into inactive substances. The drug and these substances are then primarily eliminated from the body through the urine.


Q: What specific warnings are listed on the official label for Predilone?

Official labeling includes mandatory warnings about risks such as the potential for adrenal gland suppression, increased susceptibility to infection, the possibility of psychiatric disturbances, and the requirement to avoid live virus vaccines while on immunosuppressive doses.


Q: What do official sources say about the potential for addiction with Predilone?

Official government classification documents, such as the Controlled Substances Act, do not list this drug as a controlled substance. This classification indicates that the drug is not currently associated with potential for abuse or addiction under the Controlled Substances Act.


Q: How long does it take for Predilone to clear my system completely?

Based on regulatory pharmacokinetic data, the majority of the drug is typically eliminated from the body within 16.5 to 22 hours after the final dose. This time frame is generally consistent with official pharmacokinetic data.

How should Predilone be stored and disposed of?

How to Store and Dispose of Prednisolone

Official storage and disposal requirements for Prednisolone are defined based on its specific formulation (tablets, oral solution, or ophthalmic suspension).

Storage Conditions

The oral solution must be stored at Controlled Room Temperature (20 C to 25 C) and, for some types, is labeled with a mandatory Do Not Refrigerate instruction. Tablets generally require storage at a temperature not above 25 C. The ophthalmic suspension must be stored upright, kept tightly closed, and be protected from freezing. Liquid formulations are also required to be dispensed in light-resistant and child-resistant containers.

Disposal Instructions

All forms must be kept out of the sight and reach of children. While some tablet formulations have no special requirements for disposal, unused or expired Prednisolone must generally be discarded according to local or national regulations. Patients are advised to consult drug take-back programs or healthcare professionals for specific guidance on proper disposal.

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

Available in countries:

Equivalent of Predilone found in:

A-Z Index: