delimmun

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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 delimmun

Property Description
Active Ingredient Inosine Pranobex (also Inosine Acedoben Dimepranol)
Form Tablet(s)
Pharmacological Class Immunomodulator, Antiviral Agent (ATC: J05AX05)
General Purpose Enhancing host immune response against viral infections
Origin Synthetic Compound (Alkylamino-alcohol complex)

What Type of Medicine is Delimmun?

Delimmun is a highly specialized prescription-only medication (POM) whose active component is the synthetic compound Inosine Pranobex, functioning with a dual action as both an Immunomodulator and an Antiviral Agent. The substance is categorized within the group of Other Antivirals for systemic use, under the code J05AX05. This classification identifies its role as a targeted agent for viral challenges, delivered primarily as tablets intended for oral administration. The compound, also widely known by the trade name Isoprinosine, is clinically recognized for its systemic immune support role, setting it apart from topical or simple symptom-relief agents.


Composition and Origin: Is Inosine Pranobex a Single Substance?

The core component, Inosine Pranobex, is chemically structured as a unique alkylamino-alcohol complex derived from three distinct components, confirming its synthetic origin. This structure involves the purine nucleoside inosine, combined with p-acetamidobenzoic acid and N,N-dimethylamino-2-propanol, held in a precise 1:3 molar ratio. This complex formulation, which differs structurally from simple purine derivatives, is what delivers the drug's properties and is supplied as tablets with necessary pharmaceutical excipients. The existence of multiple prominent brands, such as Imunovir and Groprinosin, which share this identical Inosine Pranobex formulation, highlights the compound's global pharmacological relevance.


General Purpose: What is the Main Benefit of This Antiviral Complex?

The fundamental benefit of this dual-acting complex is its capacity to enhance the host's immune response and provide systemic support against various viral infections and conditions associated with immunodeficiency. The medication functions by modulating the immune system, including the stimulation of key immune cells like T-lymphocytes and increasing the production of specific cytokines. This demonstrates that the medication is recognized for both supporting the immune system and actively interfering with viral activity, making it suitable for situations requiring enhanced immunological competence.

What side effects are possible with delimmun?

Possible side effects and safety information

The safety profile of Inosine Pranobex (Delimmun) is structured by regulatory documents based on System Organ Class (SOC) groupings and frequency classifications, using standardized terminology. The most frequently observed finding is a transient elevation of blood and urine uric acid levels, which is classified as Very Common (occurring in 1 in 10 people or more) in official records. This finding is generally reversible and returns to baseline within a few days after treatment cessation.


Frequency of Adverse Reactions

Common reactions (occurring in up to 1 in 10 people) involve several systems, including the nervous system (e.g., headache, vertigo), the gastrointestinal tract (e.g., nausea, vomiting), and musculoskeletal system (arthralgia or joint pain). Other common effects include fatigue, malaise, and skin issues such as rash and pruritus (itching).

Uncommon reactions (occurring in up to 1 in 100 people) include nervousness, insomnia, diarrhoea, and polyuria (excessive urination).

Serious adverse reactions, such as acute anaphylactic reaction, angioedema, and urticaria (hives), have been documented, but their frequency is classified as Not Known (cannot be reliably estimated from available data).


Safety Considerations and Restrictions

Official prescribing information notes that the medicine is formally contraindicated in patients with a known history of gout or significantly increased blood uric acid (hyperuricemia). Furthermore, this transient uric acid elevation is documented as potentially more pronounced in males and the ageing population.

Safety limitations also apply to duration: the possibility of ureteric or biliary calculi is associated with long-term treatment (three months or longer). Caution is also advised regarding co-administration with certain medications, such as immunosuppressive agents or xanthine oxidase inhibitors.

Overdose and Emergency Response

Overdose and when to seek help

Official regulatory information for Delimmun (Inosine Pranobex) documents that there has been no experience of overdose recorded with this medication. This lack of clinical data means no specific toxic dose levels or extensive symptom profiles are officially associated with confirmed overdose events.

In cases where an overdose is suspected, emergency medical assessment is required. The primary regulatory guidance mandates that treatment must be restricted solely to symptomatic and supportive measures. This is the only required procedural intervention documented in the official overdose sections of the labeling.

The only consistently observed drug-related manifestation noted in regulatory sources is a transient elevation of uric acid levels, documented in both the serum and urine. In light of this, regulatory assessments indicate that serious adverse effects, apart from these predictable metabolic changes, are considered unlikely based on non-clinical safety studies. The official prescribing information does not list a specific antidote. Furthermore, no explicit population-specific monitoring or management requirements unique to an overdose scenario are documented. This official structure strictly defines the entire scope of the emergency response.

Therapeutic Uses of delimmun

What Delimmun Treats: Main Uses and Benefits

Delimmun is primarily used across domains where additional symptomatic support is needed, often applied during phases when symptoms become more noticeable and create noticeable functional strain. The medicine is relevant in contexts marked by increased discomfort and tension, and is commonly used to help manage symptoms that may become intense or disruptive.

The medication is indicated for the management of symptoms associated with conditions such as: mucocutaneous infections caused by the herpes simplex virus, genital warts (typically as an adjunctive therapy), and Subacute Sclerosing Panencephalitis (SSPE).

Its primary benefit supports the patient during difficult episodes by easing distress and managing symptoms associated with acute or episodic changes. The medicine provides support that helps ease the overall symptom burden, and may assist with maintaining functional stability, contributing to improved day-to-day comfort. This medication is commonly used when short-term symptomatic assistance is needed in clinical settings involving acute or unstable symptom patterns.

Quick Fact: Focus: Symptom Management for Daily Functioning

Eligibility and Restrictions for Use

Who Can and Cannot Use Delimmun?

This section outlines the official population eligibility and exclusion criteria for Inosine Pranobex (Delimmun), based strictly on governmental regulatory documents.


Contraindications and Absolute Restrictions

Category Regulatory Status
Gout / Elevated Uric Acid Absolutely Contraindicated in patients currently suffering from Gout or who have elevated Uric Acid blood levels (Hyperuricaemia).
Hypersensitivity Contraindicated for known allergy to Inosine Pranobex or any excipients (e.g., confirmed Wheat Allergy).

Restricted and Conditional Use

Population Group Eligibility Classification
Pregnancy and Lactation Not Administered unless the physician determines the benefit outweighs the potential risk; safety data is not established for the fetus or in human milk.
Impaired Renal Function Use requires Caution and regular monitoring.
The Elderly Use is established, but requires Caution due to increased susceptibility to elevated uric acid levels.
Long-Term Treatment Conditional use requiring mandatory monitoring of serum/urine uric acid, liver function, and renal function for therapy lasting three months or longer.

The medicine is officially documented for use in the Adult and Paediatric Populations, provided the absolute contraindications are not present.

What should I know about interactions with other medicines?

The official regulatory profile for delimmun (Inosine Pranobex) focuses on two primary interaction domains: the impact on uric acid levels and conflicts with immunosuppressive therapies.

Pharmacodynamic Interaction Patterns

Category Official Regulatory Documentation Statement
Medicinal products with documented interactions Diuretics (Thiazide and Loop types), Xanthine Oxidase Inhibitors, Uricosuric agents, and Immunosuppressive agents.
Mechanistic basis of interactions (label description) Interaction stems from the additive effect on plasma uric acid concentration, which occurs because Inosine Pranobex is metabolized to uric acid.
Interaction-related constraints Co-administration with Diuretics may require caution due to the potential for an additive increase in uric acid levels. Similarly, the action of uric acid regulating medicines (inhibitors or uricosurics) may be antagonized.

Procedural Interaction Rules

Category Official Regulatory Documentation Statement
Timing-based interaction rules Inosine Pranobex may be administered after but must not be administered concomitantly with immunosuppressive agents.
Population-specific interaction notes Cautions regarding interaction consequences are noted for individuals with a history of gout, hyperuricaemia, or urolithiasis (kidney stones).

Connection to the overall interaction profile:

Regulatory documents define the product’s interaction structure by highlighting the need for specific caution when combining it with medicines that influence uric acid metabolism or the immune system. The official statements emphasize managing the risk of antagonism with uric acid regulating drugs or the requirement for mandated timing separation when used alongside immunosuppressive agents.

Mechanism of Action

Delimmun is a humanized monoclonal antibody (IgG1 subtype) specifically engineered to bind with high affinity to the IL-17 receptor A subunit (IL-17RA), a key component of the IL-17 receptor complex (IL-17RC). The IL-17RC is expressed on the surface of various immune and non-immune cells, including fibroblasts, epithelial cells, and endothelial cells. By binding to the receptor, Delimmun functions as an antagonist, physically preventing the natural binding of the pro-inflammatory IL-17 cytokine ligand to its receptor site. This competitive blockade is the initial biological target of the mechanism of action.

The blockade of the IL-17RC prevents the subsequent activation of intracellular signaling pathways, including those involving Act1 and NF-kB. By disrupting this downstream signal transduction cascade, Delimmun effectively modulates the Th17 pathway activity, leading to a significant reduction in the expression and release of various pro-inflammatory cytokines and chemokines, such as IL-6, IL-8, and TNF-α. This comprehensive regulation of the inflammatory cascade results in the reduction of T-cell and neutrophil recruitment into tissues, and the inhibition of osteoclast differentiation and bone resorption activity.

Dosage and Administration Information

Delimmun (Inosine Pranobex) is a prescription-only medication administered exclusively via the oral route, typically supplied as 500 mg tablets. The core usage protocol involves calculating the patient’s total daily dose based on body weight, generally within the range of 50 mg/kg to 100 mg/kg of body weight per day. The total amount must be distributed and taken in three to four equally divided doses during waking hours to maintain a consistent administration schedule.

For specific indications, the daily total is fixed; for instance, the standard adult regimen for mucocutaneous herpes simplex involves the administration of 1 gram four times daily. The medication may be taken with or without food. For individuals who find swallowing difficult, the tablets are designed such that they may be crushed and dissolved in a small amount of liquid; however, the score-line on the tablet is solely to assist with swallowing and must not be used to divide the tablet into smaller, equal doses.

Treatment duration is defined by the condition being addressed. Acute usage patterns are typically short-term, such as 7 to 14 days for viral episodes, while usage for chronic, severe conditions, such as Subacute Sclerosing Panencephalitis (SSPE), requires an extended duration of therapy with regular evaluation.

Population Group Standard Daily Dose Range Maximum Daily Limit
Adults/Elderly 50 mg/kg to 100 mg/kg 4 grams
Pediatric 50 mg/kg 3 grams

Recent Clinical Evidence

Research evidence / Overview of studies for delimmun


Evidence for Viral Skin and Mucosal Infections

Research has explored the use of delimmun in conditions characterized by episodic manifestations, such as recurrent Herpes Simplex and various influenza-like illnesses. Randomized Controlled Trials (RCTs) and post-marketing studies have research examined populations of adults and children. These trials monitored outcomes related to physical discomfort, including time to symptom resolution and time to resume daily functioning. For general acute viral infections, initial findings were mixed across the entire group studied, but specific reports show patterns related to a shorter duration of symptoms observed when analyzing pre-defined subgroups, such as younger, otherwise healthy adults. The evidence base contributes to the research landscape but is limited in fully characterizing the study outcomes across all patients.

Evidence for Human Papillomavirus (HPV) Infections

Delimmun was evaluated in settings involving Human Papillomavirus (HPV), including patients with genital warts. The research includes RCTs and systematic reviews, often comparing the medicine when used as an adjunctive therapy (alongside conventional treatments) versus conventional treatment alone. Studies monitored the clinical clearance rate and frequency of recurrence. Trials sometimes reported higher clinical clearance measurements and lower recurrence measurements when delimmun was included in a combination regimen. The evidence is limited in isolating the drug's action when it was studied for use alone. Long-term effects are not fully established beyond the typical follow-up durations of one year.

Evidence for Subacute Sclerosing Panencephalitis (SSPE)

For the rare neurological condition SSPE, the evidence relies on Long-Term Observational Studies and Case Series due to the disease's rarity. Studies monitored outcomes related to disease progression (via functional scales) and changes in survival duration. Studies sometimes described slower progression rates on neurological scales in individuals receiving treatment, often as part of a combination regimen. The certainty remains low for this indication, and the absence of large-scale Randomized Controlled Trials means the results apply only to the populations studied.

Consistency and Gaps in the Research Evidence

The evidence quality varies across studies. Key limitations include the fact that the results apply only to the populations studied, and the frequent use of combination therapy means the isolated effect of delimmun in these regimens is not fully established. Comparative evidence against newer treatments is lacking in some areas, and limited information for long-term outcomes means the long-term effects are not fully established overall.

Key Studies & References

  1. Inosine pranobex in the treatment of influenza and other respiratory infections of viral etiology (Phase 4 RCT Analysis)
  2. Advances in Antiviral Therapy for Subacute Sclerosing Panencephalitis

Frequently Asked Questions (FAQ)

Common questions about delimmun (FAQ)


Q: Does delimmun have a warning about driving or operating machinery?

Official warnings often suggest caution when performing activities that require alertness, such as driving or operating machinery. This is advised because common side effects, as reported in regulatory documents, can include dizziness and headache.

Q: What is the difference between delimmun and a placebo, based on studies?

Studies reviewed in regulatory documents indicate that the medicine is typically associated with a significantly earlier time to symptom resolution or higher clinical clearance rates when compared to a placebo. This means that, for approved uses, the medicine was associated with more favorable outcomes than the inactive substance in clinical trials.

Q: Are there any common reasons why a doctor might discontinue delimmun treatment?

Regulatory guidelines suggest that treatment may be stopped if the patient experiences a severe or persistent side effect, such as a severe allergic reaction. Treatment may also be discontinued if a patient develops an absolute contraindication, such as gout or highly elevated uric acid levels (hyperuricemia).

Q: What are the benefits of taking delimmun besides its main use?

Beyond its primary clinical use, official product information notes that the medicine affects certain biological processes. These effects include enhancing the synthesis of purine nucleotides (which are cell building blocks) and stimulating T-cell activity, supporting the body's overall immune response.

Q: How long does delimmun stay in your system after stopping treatment?

The medicine is quickly broken down and eliminated from the body, as evidenced by its temporary effect on uric acid levels. This increase in uric acid typically returns to baseline within a few days after the treatment course has been completed.

Q: Can delimmun cause changes in mood or behavior?

Official product information lists nervousness and insomnia (difficulty sleeping) as Uncommon side effects. These effects may be experienced in up to 1 in 100 people, according to regulatory documents.

Q: What are the signs of an allergic reaction to delimmun?

Signs of a serious allergic reaction, as warned about in patient leaflets, can include immediate symptoms like a rash, hives, itching, or swelling of the face, lips, tongue, or throat. If signs of a serious reaction, such as trouble breathing, are experienced, immediate medical attention is necessary.

How should delimmun be stored and disposed of?

How to Store and Dispose of Delimmun (Inosine Pranobex) Tablets

The storage and disposal of Delimmun tablets are governed by official regulatory guidelines to maintain product quality and safety.

Storage Conditions

Delimmun must be stored at ambient room temperature, typically below 30 C. The medicine requires protection from environmental factors, meaning it should be stored in a dry place and protected from light. To ensure this protection and integrity, the tablets must remain in their original container or blister packaging until use. Do not use the medicine after the expiry date printed on the carton.

Child Safety and Disposal

A mandatory requirement is to keep this medicine out of the sight and reach of children.

For disposal, unused or expired Delimmun must not be discarded through household waste or wastewater. It is required to dispose of the product according to local pharmaceutical waste procedures for proper environmental protection.

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

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