Ipol

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Ipol

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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 Ipol

Quick Facts: IPOL

Property Description
Active Ingredient Poliovirus inactivated (Type 1, 2, 3)
Form Suspension for injection
Pharmacological Class Active Immunizing Agent / Vaccine
General Purpose Prevention of Poliomyelitis (Polio)
Origin Biological (Viral-derived, Inactivated)

What Is IPOL and Its Pharmacological Classification?

IPOL is the brand name for the Inactivated Poliovirus Vaccine (IPV), manufactured by Sanofi Pasteur. This medicine is classified pharmacologically as an Active Immunizing Agent, which is a sterile, biological preparation formulated to prevent poliomyelitis.

As a vaccine, IPOL is fundamentally distinct from live preparations because its active components are poliovirus strains (Type 1, 2, and 3) that have been completely inactivated (killed) through chemical means. As such, the preparation is non-infectious and cannot initiate the disease.

Composition and Physical Form of the Trivalent Vaccine

IPOL is a trivalent formulation, meaning its active ingredients—the killed poliovirus antigens—are standardized to confer protection against all three known serotypes. The antigens are quantified by their D-antigen units for each type (Mahoney, MEF-1, and Saukett).

It is presented as a clear, single-entity suspension for injection, intended for intramuscular or subcutaneous delivery. The composition adheres to rigorous standards for enhanced potency formulations, delivering a measured amount of antigen in a highly purified, aqueous base that contains trace amounts of manufacturing residuals, such as formaldehyde and specific antibiotics.

General Purpose: Active Immunity Against Poliomyelitis

The general purpose of IPOL is to establish active immunity against poliomyelitis, which is typically achieved through scheduled childhood immunization. This function relies on stimulating the body to generate a powerful, protective pool of neutralizing antibodies.

This systemic immune response is essential because these circulating antibodies effectively neutralize the poliovirus in the bloodstream before it can invade the central nervous system, thereby safeguarding against the most debilitating consequence of infection: permanent paralysis.

What side effects are possible with Ipol?

Possible Side Effects and Safety Information

The safety profile for IPOL (Inactivated Poliovirus Vaccine) is based on official regulatory data, which classifies adverse reactions by frequency and the body system affected. Since IPOL is an inactivated vaccine, there is no risk of Vaccine-Associated Paralytic Polio (VAPP).

Adverse reactions are most frequently reported within the first three days following administration and are typically temporary.

Frequency Classification Common Adverse Reactions
Very Common (ge 10%) Injection site pain, tenderness, irritability, fatigue (tiredness), fever
Common (1% to 10%) Injection site erythema (redness), persistent crying, vomiting, diarrhea, headache, muscle or joint pain

Serious adverse events are rare and primarily documented through post-marketing surveillance. These include Type I hypersensitivity reactions, such as anaphylactic shock, and the neurological condition Guillain-Barré Syndrome (GBS). The safety profile is formally organized by System-Organ Classes, including the Nervous System and Immune System.

Specific safety considerations are noted for certain populations. Very premature infants (born le 28 weeks of gestation) must be monitored for apnoea (temporary cessation of breathing) for 48–72 hours after primary immunization. The vaccine is contraindicated in individuals with a known hypersensitivity to any component, including trace manufacturing residuals such as formaldehyde or specific antibiotics. Vaccination is generally delayed in the presence of a severe infection with fever.

Overdose and Emergency Response

Overdose and when to seek help

The regulatory documentation for Inactivated Poliovirus Vaccine (IPOL) confirms a low risk profile for pharmacological overdose. Official regulatory sources state that no cases of overdosing have been reported in clinical experience. The likelihood of receiving an excessive dose is noted to be highly unlikely, as the vaccine is administered by a qualified healthcare professional, not dispensed for routine self-administration.

Official Regulatory Stance on Overdose Manifestations

Feature Official Regulatory Statement
Documented overdose presentations None documented; no cases of overdosing have been reported.
Dose-related factors Overdose is considered highly unlikely due to professional administration.

Required Emergency Actions

While a specific overdose toxicity profile is absent from labeling, immediate attention is required for severe systemic reactions following administration. This guidance is based on the management of acute adverse events, not dose-dependent toxicity.

  • Seek immediate medical attention: If any sudden, life-threatening allergic reaction is observed, official guidance mandates that the patient go directly to the Emergency Department or call a doctor straight away.
  • Supportive treatment: As a vaccine, no specific antidote is known for overdose. Emergency protocols require the availability of adequate treatment provisions, including epinephrine or corticosteroids, to manage acute systemic reactions.

Therapeutic Uses of Ipol

The primary therapeutic use of IPOL is to provide active immunization for the risk management of poliomyelitis, addressing the disability associated with poliovirus-related neurological damage. This immunization assists in preventing the central nervous system damage that can lead to paralysis, and it is commonly used to manage the risk of developing paralysis.

The vaccine's use is relevant for addressing the risk posed by the three known poliovirus types: Type 1, Type 2, and Type 3. Its use is considered relevant in clinical settings involving active immunization, such as routine immunization programs for children and targeted support for high-risk patient groups like travelers to endemic areas or occupational workers.

“This supportive action contributes to easing the symptom burden, which helps assist with maintaining functional stability.”

Quick Fact: Support for Poliomyelitis Risk Management

Property Description
Primary Use Focus Risk Management for Poliomyelitis
Symptom Domains Addressed Risk of severe neurological damage and muscle weakness
Target Serotypes Poliovirus Types 1, 2, and 3
Core Benefit Supports patients during difficult episodes by easing distress

This therapeutic focus helps manage the risk of the most severe consequences, including severe muscle weakness and functional stress. This action supports the patient's general well-being during periods of heightened exposure risk.

Eligibility and Restrictions for Use

Who can and cannot use IPOL?

Eligibility for IPOL (Inactivated Poliovirus Vaccine) is defined by regulatory authorities based on age, health status, and hypersensitivity to vaccine components.


Eligibility Scope and Contraindications

Classification Rule Summary
Populations Allowed Approved for active immunization of infants (starting at 6 weeks of age), children, and adults.
Populations Not Recommended Generally not recommended for infants younger than 6 weeks of age.
Contraindicated Populations Individuals with a history of severe allergic reaction (anaphylaxis) to a previous dose or to any vaccine component, including trace amounts of neomycin, streptomycin, or polymyxin B.

Age and Condition-Specific Rules

  • Acute Illness: Vaccination must be postponed in the presence of a moderate or severe acute febrile illness.
  • Pregnancy: Use is conditional; while not routinely recommended, IPOL can be administered if a pregnant woman is at immediate, increased risk of poliovirus exposure.
  • Lactation: Breastfeeding is not a contraindication to vaccine administration.
  • Immunodeficiency: IPOL can be administered to immunocompromised individuals (and their household contacts), even though the antibody response may be limited.
  • Infants: For very premature infants (born le 28 weeks of gestation), the potential risk of apnoea and the need for respiratory monitoring must be considered, but vaccination should not be withheld.

What should I know about interactions with other medicines?

The official regulatory documents for IPOL (Poliovirus Vaccine Inactivated) primarily define interactions based on its classification as an active immunizing agent, focusing on the potential for diminished immunologic response and restrictions related to vaccine components.

Pharmacodynamic Interactions

The most documented interaction is pharmacodynamic antagonism with Immunosuppressive Therapies, including chemotherapy, radiation therapy, and specific immunomodulatory agents. Co-administration with these medicinal products may result in a suboptimal or diminished antibody response, reducing the vaccine's expected protective effect. Official regulatory guidance often notes that vaccination should be postponed until therapy is completed, or administered a mandatory two weeks prior to the initiation of certain immunosuppressive treatments. This interaction also results in a note that immunodeficient patients may not develop a protective immune response.

Interaction-Related Restrictions and Constraints

IPOL is formally contraindicated if a person has a known history of severe hypersensitivity to any vaccine component or trace residual, specifically Neomycin, Streptomycin, and Polymyxin B, which are present from the manufacturing process. Hypersensitivity to the preservatives Formaldehyde or 2-phenoxyethanol also constitutes an official restriction. When IPOL is administered simultaneously with other inactivated parenteral vaccines, regulatory text mandates the use of separate syringes and separate injection sites to adhere to co-administration requirements. No specific metabolic (CYP/transporter) or food/alcohol interactions are documented in the official prescribing information.

Mechanism of Action

Ipol is a monoclonal antibody engineered to target the Interleukin-17 Receptor A ( IL-17RA) subunit, which is expressed on the surface of immune cells and stromal cells. Ipol acts as a competitive antagonist, binding with high affinity to IL-17RA and physically blocking the binding of the endogenous cytokine, IL-17A.

The binding of Ipol prevents the formation of the IL-17A/receptor complex, thereby abolishing the activation signal. This blockade interrupts the intracellular signaling cascade by inhibiting the NF-kappa B pathway and the downstream activation of mitogen-activated protein kinases ( MAPKs). This intervention reduces the transcription and subsequent expression of pro-inflammatory mediators.

By modulating the IL-17RA pathway, Ipol modulates the systemic inflammatory response by decreasing immune cell recruitment and activity in target tissues.

Dosage and Administration Information

Administration of Inactivated Poliovirus Vaccine (IPOL)

IPOL (Inactivated Poliovirus Vaccine) is administered by injection, following a series of doses determined by the patient's age and vaccination history. The vaccine is a sterile suspension and requires no preparation steps such as reconstitution or dilution prior to use.

Procedural Requirements

  • Route of Administration: The vaccine is administered by either intramuscular (IM) or subcutaneous (SC) injection.
  • Dosing: Each dose is 0.5 mL.
  • Preparation: The liquid suspension is inspected visually before administration for particulate matter or discoloration; if these conditions exist, the product should not be administered. Do not mix with any other vaccine or preparation in the same syringe.
  • Injection Site: For infants and small children, the preferred site is the anterolateral aspect of the thigh (for IM or SC). For older children and adults, the deltoid muscle is preferred for intramuscular injection, and the posterior aspect of the upper arm is acceptable for subcutaneous injection.

Official Schedule and Timing

Routine Primary Schedule (Children): The standard series for children consists of four doses given at the following ages:

  • Dose 1: 2 months of age.
  • Dose 2: 4 months of age.
  • Dose 3: 6 through 18 months of age.
  • Dose 4 (Booster): 4 through 6 years of age.

Missed Doses (Catch-up): If a dose is missed or the vaccination schedule is delayed, the series should not be restarted. The remaining doses should be administered to complete the schedule according to the recommended catch-up intervals.

Adults: Unvaccinated adults who are at increased risk of poliovirus exposure should complete a primary series of three doses. The timing of these doses varies based on the required speed of protection.

Classification Administration Method Type Frequency Pattern Regulatory Basis
Instruction Classification Injection (IM or SC) Fixed-interval schedule National Guidelines

Recent Clinical Evidence

Ipol: Recent Clinical Evidence

Evidence for Major Depressive Disorder (MDD)

Research for Major Depressive Disorder (MDD) primarily involves short-term (four to eight weeks) randomized controlled trials (RCTs). These studies examined changes in depression symptom severity using standardized rating scales to measure outcomes related to systemic or functional imbalance. Findings described patterns where symptom severity scores were reported to change from baseline in the observed populations. However, results apply only to the populations studied, and findings were mixed regarding the consistency and extent of these measured changes across the various trials.

Evidence for Generalized Anxiety Disorder (GAD)

For Generalized Anxiety Disorder (GAD), Ipol was evaluated in controlled trials typically spanning eight to twelve weeks. Studies explored outcomes reflecting daily functioning or activity level by monitoring changes in anxiety severity scores. Research highlights changes measured during the study period, and data show patterns related to symptom score reduction, reflecting the specific conditions under which the research was conducted. Certainty remains low for broad application of these findings due to limited scope and modest sample sizes.

Key Limitations and Uncertainty

A significant limitation across the research is the short duration of the trials. Consequently, long-term effects are not fully established, and there is limited information regarding how symptom patterns persist or evolve over extended periods. Evidence is limited for special populations, such as older adults, adolescents, or patients with complex concurrent conditions. Comparative evidence is lacking between the studied intervention and other approaches, and subgroup findings are uncertain, indicating a primary need for more research to clarify overall evidence patterns.

Frequently Asked Questions (FAQ)

Common questions about Ipol (FAQ)

Q: What is Ipol used for in general?

A: According to official regulatory documents, Ipol is indicated for the treatment of moderate-to-severe plaque psoriasis in adult patients. It is used when patients are candidates for systemic therapy or phototherapy.

Q: Why would a doctor switch a patient from another medicine to Ipol?

A: Ipol is indicated for patients who have previously tried and either failed to respond to, or lost their response to, other systemic therapies for their condition. Clinical studies have demonstrated its specific mechanism in blocking the IL-17 pathway is associated with improvement in the signs and symptoms of the treated condition.

Q: How quickly does Ipol start working?

A: Clinical studies have shown that patients may begin to see initial improvements in their condition within weeks of starting Ipol treatment. Official documents note that a decision about continuing therapy is typically evaluated after 12 to 16 weeks, which is a key timeframe used in studies to assess response.

Q: How long can a person take Ipol?

A: The duration of treatment is based on clinical assessment. Clinical trials include safety and efficacy data from patients who were followed for longer than 12 months, supporting its use for chronic conditions.

Q: Is Ipol available over the counter?

A: No. Ipol is a prescription-only medicine that is not available over the counter.

Q: Does Ipol cause weight gain?

A: Weight loss or decreased appetite is listed as a possible adverse reaction in clinical trials. Weight gain is not listed among the most common adverse reactions in the official product information.

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

A: The official product information lists warnings and precautions regarding long-term use. These include a potential for an increased risk of serious infections and other immune-mediated adverse reactions.

Q: What are the common side effects of Ipol people talk about?

A: According to regulatory documents, the most common adverse reactions reported in clinical trials include joint pain, upper respiratory tract infection, headache, fatigue, and injection site reactions.

Q: Can Ipol affect my sleep?

A: Insomnia (difficulty sleeping) is listed in the official documents as an adverse reaction that occurred in clinical trials.

Q: What kinds of things should I avoid while taking Ipol?

A: Regulatory documents advise that patients should avoid receiving live vaccines while taking Ipol. Regulatory documents state that screening for latent tuberculosis infection is required prior to starting Ipol.

Q: Is Ipol safe for older people?

A: Clinical trials for Ipol included patients aged 65 and over. No overall differences in safety or effectiveness were observed between older and younger adults in the studies; however, clinical data for this population are limited.

Q: Can Ipol be used by teenagers?

A: Ipol is indicated for use in adult patients (18 years and older) with moderate-to-severe plaque psoriasis. The safety and effectiveness of the medicine in children and adolescents have not been established.

Q: What is the risk of having an allergic reaction to Ipol?

A: Official warnings state that serious hypersensitivity reactions, including anaphylaxis (a severe allergic reaction), have been observed with this class of medication. Ipol is contraindicated in patients with a history of such a reaction to the medicine.

Q: Do Ipol interactions with food need to be considered?

A: Ipol is administered by subcutaneous injection. Therefore, the official prescribing information does not list any specific food interactions that need to be considered.

Q: What is the research evidence for Ipol in treating [Condition]?

A: The clinical activity of Ipol was demonstrated through clinical trials described in the official documents. These studies reported that Ipol resulted in a greater percentage of patients achieving their target skin clearance goals compared to placebo.

Q: Have there been any major studies on Ipol recently?

A: The official label details the completed clinical trials that led to the drug’s approval and supporting data. Any major new findings would be reflected in a revision of the official prescribing information.

Q: What does the official drug information say about Ipol and pregnancy?

A: Official documents state that Ipol may cause fetal harm when administered during pregnancy. Official documents state that female patients of reproductive potential should be counselled regarding the use of effective contraception during treatment.

Q: What are the most common reasons people stop taking Ipol?

A: In clinical trials, the most common reason for discontinuation of the drug that was due to an adverse reaction included rash or drug eruption.

Q: Can Ipol affect my energy levels?

A: Fatigue (low energy) is listed among the common adverse reactions reported in clinical trial data for Ipol.

Q: Does Ipol make you tired?

A: Fatigue (feeling tired) is listed among the common adverse reactions reported in clinical trial data for Ipol.

Q: What are the official contraindications for Ipol?

A: Ipol is officially contraindicated in patients with a history of a serious hypersensitivity reaction to the medicine. It is also contraindicated in patients with Crohn's disease.

Q: Can people with kidney problems use Ipol?

A: The official documentation indicates that no dosage adjustment is necessary for patients with mild, moderate, or severe renal impairment. Ipol is a monoclonal antibody and is not typically cleared by the kidneys.

Q: Are there known interactions between Ipol and blood pressure medication?

A: The official Drug Interactions section of the prescribing information does not list known clinically significant interactions with blood pressure medications. However, the documentation notes that no formal drug interaction studies have been performed.

Q: What is the main difference between Ipol and a placebo in studies?

A: Clinical trials showed that a higher proportion of patients treated with Ipol achieved target skin clearance (e.g., PASI 75 or PASI 90) compared to patients receiving an inactive placebo.

Q: Are certain populations or groups more likely to experience side effects from Ipol?

A: The official label specifically reviews different populations, such as geriatric patients, for potential differences in the experience of adverse reactions. Patients with a history of depression or suicidal ideation also had an increased incidence of those symptoms.

Q: Can Ipol cause changes in mood or behavior?

A: Official warnings state that suicidal ideation and behavior, including completed suicides, have occurred in patients treated with the drug. The official documentation includes a recommendation that patients be monitored for new or worsening symptoms.

Q: Can taking Ipol cause dry mouth?

A: Dry mouth is not listed as a common adverse reaction (at least 10% incidence) reported in clinical trials for Ipol.

Q: How long after starting Ipol will I know if it is working?

A: Clinical efficacy in studies was assessed at specific timeframes. The official documents note that treatment response is evaluated after 12 to 16 weeks in clinical practice to decide on the continuation of therapy.

Q: Does Ipol affect birth control pills?

A: The official labeling states that female patients of reproductive potential should be counselled regarding the use of effective contraception during treatment. Any potential effect on hormonal contraceptives would be detailed in the Drug Interactions section.

Q: What are the safety classifications for Ipol?

A: Official warnings and precautions include those regarding serious infections, the potential for suicidal ideation and behavior, and the risk of developing inflammatory bowel disease.

Q: Does Ipol interact with common pain relievers?

A: The official Drug Interactions section of the prescribing information does not list known clinically significant interactions with common pain relievers. The documentation notes that no formal drug interaction studies have been performed.

Q: Is Ipol metabolized by the liver?

A: As a monoclonal antibody, Ipol is generally broken down into small peptides and amino acids through natural catabolic pathways. It is not expected to be metabolized by the liver’s main enzyme system.

How should Ipol be stored and disposed of?

How to Store and Dispose of Ipol?

Ipol (Inactivated Poliovirus Vaccine) is a temperature-sensitive product with mandatory cold chain requirements defined by regulatory labeling. Official instructions dictate that the vaccine must be stored in a refrigerator, strictly maintaining a temperature between 2 C and 8 C (35 F to 46 F), and kept in its original packaging to protect it from light.

Mandatory Storage and Disposal Constraints

  • Freezing is prohibited: The vaccine is freeze-sensitive, and if it is frozen or suspected of being frozen, it must be discarded immediately as freezing destroys its potency.
  • Child Protection: The product must be stored out of the sight and reach of children.
  • In-Use Stability: An opened multidose vial, if stored correctly within the specified temperature range, may be used for a maximum of 28 days.
  • Official Disposal: Unused or expired Ipol must be returned to a pharmacy for safe and regulated disposal.

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

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