Omal

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Omal

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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 Omal

Quick Facts

Property Description
Active Ingredient Omeprazole (racemate)
Form Delayed-release capsules/tablets
Pharmacological Class Proton Pump Inhibitor (PPI)
Common Use Relief of symptoms caused by excess stomach acid
Origin Synthetic substituted benzimidazole

What is Omal and What Type of Medicine Is It?

Omal is a brand name for a medicine containing the active substance Omeprazole, which belongs to the clinically recognized class of Proton Pump Inhibitors (PPIs). This pharmacological class is defined by its ability to profoundly reduce the amount of acid produced in the stomach, positioning Omeprazole as a gastric antisecretory agent. The medicine's main effect is to reliably reduce the overall amount of acid produced in the digestive system. Omeprazole is a synthetic compound, specifically a substituted benzimidazole, and is supplied for oral use, often available both as prescription-only and over-the-counter (OTC) formulations, depending on the dose and country of sale.


Composition, Form, and General Benefit

The active ingredient in Omal is Omeprazole, frequently used as the racemate, and it is formulated into specialized delayed-release capsules or tablets containing enteric-coated granules. This specialized formulation is necessary because the active compound is acid-labile (easily destroyed by stomach acid) and requires protection until it can be absorbed effectively in the small intestine. By inhibiting the specific enzymes that produce stomach acid, Omeprazole provides a powerful and sustained antisecretory effect. This action translates to the drug's general therapeutic goal: providing relief from discomfort associated with excess stomach acid, such as heartburn and acid reflux, which occurs when acid rises into the esophagus.

Regulatory References

  1. Omeprazole: MedlinePlus Drug Information
  2. Omeprazole - StatPearls - NCBI Bookshelf - NIH

What side effects are possible with Omal?

Official Safety Profile and Adverse Reactions

The possible side effects and safety profile of Omal (Omeprazole) are structured according to governmental regulatory documentation, such as the FDA Prescribing Information and the EMA Summary of Product Characteristics (SmPC).

Common Adverse Reactions (occurring in 1% to 10% of users, or ge 2% in FDA labeling) are typically related to the digestive and nervous systems. These frequently reported events include headache, abdominal pain, nausea, diarrhea, vomiting, and flatulence.


Clinically Significant and Serious Warnings

Official labeling documents contain warnings about serious, though rare, adverse reactions, often identified through post-marketing surveillance. These include:

  • Serious Skin Reactions: Rare instances of severe cutaneous adverse reactions (SCARs), such as Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN), have been documented.
  • Kidney: Acute Tubulointerstitial Nephritis (AIN) has been reported.
  • Hypersensitivity: Severe allergic reactions, including anaphylaxis and angioedema, are listed.
  • C. difficile Risk: Therapy may be associated with an increased risk of Clostridium difficile-associated diarrhea (CDAD).

Duration-Related and Population-Specific Safety Notes

Regulatory documents outline specific risks linked to the duration of treatment:

  • Long-Term Use: Prolonged daily treatment is associated with an increased risk of bone fracture (hip, wrist, or spine), Hypomagnesemia (low magnesium levels), and Vitamin B-12 deficiency.
  • Safety Restriction: A symptomatic response to Omeprazole does not rule out the presence of an underlying gastric malignancy (stomach cancer), and this must be excluded by health professionals.
  • Population Note: Official labeling notes that Asian patients may have a significantly higher systemic exposure to Omeprazole than other populations.

Overdose and Emergency Response

Overdose and When to Seek Help

This information reflects the official regulatory profile for omalizumab, derived from authoritative government prescribing documents.


Documented Overdose Profile

The regulatory profile for omalizumab is characterized by a lack of specific toxicity at high doses. Clinical trials involving administration of single doses up to 4000 mg (substantially higher than typical therapeutic doses) did not observe any specific adverse events or life-threatening manifestations directly attributable to acute overdosage.

Management of an acute overdosage consists of general observation and supportive treatment for any non-specific adverse reactions that may occur.

Management Component Regulatory Statement
Antidote No specific antidote is listed.
Symptom Profile No specific overdose symptoms are documented.

Urgent Medical Attention

While acute overdose toxicity is not documented, the primary acute risk associated with omalizumab that requires immediate attention is the potential for anaphylaxis (a serious allergic reaction). This risk is highlighted in regulatory warnings.

Patients and caregivers must be instructed to seek immediate medical care should any signs or symptoms of a severe acute reaction, such as anaphylaxis, occur following an injection. Treatment must be initiated promptly in a setting prepared to manage severe allergic reactions.

Therapeutic Uses of Omal

What Omal Treats: Main Uses and Benefits

Omal, known by the trade name Xolair, is considered relevant in clinical settings that involve acute or unstable symptom patterns. It is applied across domains where additional symptomatic support is needed.

The medication is commonly used across conditions characterized by episodic or fluctuating manifestations, including moderate-to-severe persistent allergic asthma, chronic spontaneous urticaria (CSU), and chronic rhinosinusitis with nasal polyps (CRSwNP). It helps address symptom clusters that may become intense or disruptive, especially during phases when symptoms become more noticeable.

Omal is often used when symptoms related to heightened physiological activity intensify suddenly or become overwhelming. Its use contributes to easing the overall symptom load by supporting patients during difficult episodes.

“The use of Omal may be relevant for easing symptoms that interfere with daily comfort, assisting with support in acute situations.”

Quick Fact: Used for managing Symptoms that interfere with daily functioning

The medicine offers symptomatic relief that helps patients cope more steadily with difficult episodes and provides supportive relief when symptoms interfere with routine activities.

Eligibility and Restrictions for Use

Who Can and Cannot Use Omal? (Omeprazole)

The eligibility for Omeprazole (Omal) is strictly determined by official regulatory documents, focusing on patient status and concurrent conditions.


Non-Eligibility and Contraindications

Use is strictly contraindicated in patients with a known hypersensitivity to omeprazole, to substituted benzimidazoles (the drug class), or to any component of the formulation. It is also prohibited for patients who are taking rilpivirine-containing products. Regulators also advise avoiding concomitant use with the antiplatelet drug clopidogrel and certain antiretroviral medicines like nelfinavir.


Restricted Use and Age-Group Rules

Patients with hepatic impairment (liver dysfunction) may require a lower daily dose, as the medicine's clearance is decreased. Gastric malignancy must be excluded in adults before starting therapy, as treatment can mask symptoms.

Omeprazole is approved for adults for all standard indications. In the pediatric population, use is established for treating symptomatic GERD in children aged one year and older, and for erosive esophagitis in patients aged one month and older. Safety and efficacy are not established in infants under one month for general indications. The medicine can be used during pregnancy and lactation, as official data suggests it is not likely to negatively influence the child.

What should I know about interactions with other medicines?

Interaction Scope

Interacting Medicinal Product Categories

Omalizumab is an add-on therapy, and its official interaction statements primarily relate to the procedural constraints of co-administering certain medication classes. The main documented medicinal products involved in mandatory procedural notes are systemic or inhaled corticosteroids.

Interaction-Related Restrictions and Constraints

There are no known pharmacological interactions that necessitate dose adjustment of omalizumab itself. However, regulatory documents stipulate crucial management requirements for concomitant treatment:

  • Corticosteroids: Systemic or inhaled corticosteroids should not be stopped suddenly upon starting omalizumab therapy for asthma or chronic rhinosinusitis with nasal polyps (CRSwNP). Any decrease in corticosteroid dosage must be gradual and closely supervised by a physician.
  • Food Allergy: For the IgE-mediated food allergy indication, omalizumab must be used in conjunction with food allergen avoidance.

Interference with Laboratory Tests

Omalizumab binds to Immunoglobulin E (IgE), forming complexes that are cleared slowly from the body. This causes total serum IgE levels to increase following administration and to remain elevated for up to one year after treatment discontinuation. Therefore, total serum IgE levels measured less than one year after stopping the medication cannot be used to correctly re-evaluate the dosing regimen.

Mechanism of Action

Neutralizing Free IgE and Blocking Receptor Engagement

Omalizumab is a laboratory-produced antibody that acts by physically targeting and binding to free Immunoglobulin E (IgE) molecules circulating in the bloodstream. This specific binding prevents the IgE from subsequently attaching to the high-affinity IgE receptors (FcepsilonRI) found on the surface of inflammatory cells, such as mast cells and basophils. This action blocks the necessary initial step for IgE-mediated cell activation.

Modulating Inflammatory Cell Sensitivity

The sequestration of IgE causes a reduction in the responsiveness of these key inflammatory cells. Over time, the sustained lack of IgE binding leads to a downregulation in the number of FcepsilonRI receptors on the cell surface. This structural change raises the activation threshold required for the cells to release their contents, resulting in a diminished release of inflammatory mediators.

Dosage and Administration Information

Administration Overview

This medication is typically administered via subcutaneous injection. This means the liquid is delivered into the fatty tissue layer just beneath the skin, rather than into a muscle or vein. Common sites for administration include the upper arms, thighs, or abdomen.

Preparation and Handling

The product is provided in a form that requires careful handling to maintain its stability. It is important to observe the physical appearance of the solution before use; it should generally appear clear to slightly opalescent. If the solution is cloudy or contains distinct foreign particles, it should not be used.

Routine of Use

Consistency in the timing of administration is often recommended to maintain steady levels of the medication within the body. The specific frequency and duration of use are determined based on the individual's clinical profile and the underlying condition being addressed.

Self-Administration

In certain clinical scenarios, individuals may be trained on how to perform the injections themselves. This process involves learning proper site rotation and aseptic techniques to minimize the risk of localized skin reactions. If self-administration is not appropriate, the medication is administered by a healthcare professional in a clinical setting.

Storage Considerations

To ensure the medication remains effective, it must be stored according to specific temperature requirements. Exposure to extreme light or heat should be avoided. If the medication has been frozen or left outside of the recommended temperature range for an extended period, its integrity may be compromised.

Recent Clinical Evidence

Research evidence / Overview of studies for Omal

The research base for Omal is primarily established through multiple Randomized, Double-Blind, Placebo-Controlled Trials (RCTs) across its studied indications. These studies have evaluated the compound's use in conditions characterized by fluctuating or episodic manifestations, such as severe allergic asthma and chronic urticaria.


Evidence for Use in Allergic Asthma

The core research consists of numerous short-term to intermediate-term RCTs involving adults, adolescents, and children. Researchers examined outcomes related to episodic changes, specifically monitoring the rate of asthma exacerbations and unscheduled medical visits. Trial data describe patterns where the measured frequency of exacerbation events in the studied groups was numerically lower than in the control groups. Long-term understanding is also supported by observational cohort studies, which track patient groups over several years.


Evidence for Use in Chronic Spontaneous Urticaria (CSU) and Nasal Polyps (CRSwNP)

Evidence for CSU rests on pivotal, short-term RCTs for patients whose symptoms persisted despite standard antihistamine therapy. Outcomes monitored included patient-reported measures of symptom intensity, such as the Weekly Urticaria Activity Score (UAS7). For CRSwNP, two replicate RCTs examined objective measures like the Nasal Polyp Score (NPS) and subjective measures like the Nasal Congestion Score (NCS) in adults. Trial reports described measured changes in these scores compared to control groups over the study intervals.


Evidence for Use in IgE-Mediated Food Allergy

Research exploring this use is centered on a landmark NIH-sponsored RCT studying adults and children allergic to multiple foods. The core research question examined the tolerance threshold, specifically the ability of participants to consume specific amounts of food protein without an allergic reaction during a controlled challenge. Trial data show patterns related to a measured change in tolerance thresholds. This compound is explored only as an adjunct to food allergen avoidance.


Synthesis of Evidence Gaps

A key research limitation for all indications is the variability across studies when trying to predict individual responses. Furthermore, data for certain subgroups (such as very older adults or pregnant women) remain insufficient, and the results apply only to the populations studied in the official research. The optimal duration for continuous use and the durability of effects after treatment cessation are areas where long-term evidence is still emerging.

Key Studies & References Omalizumab as Monotherapy and as Adjunct Therapy to Multi-Allergen OIT in Food Allergic Participants (OUtMATCH) (Pivotal trial for IgE-mediated Food Allergy)

Frequently Asked Questions (FAQ)

Common questions about Omal (FAQ)


Q: What is the typical time frame to notice if Omal is working?

A: Studies and official product information indicate that the time it takes to see the full benefits of Omal varies significantly depending on the treated condition. While the targeted IgE molecules in the bloodstream are reduced within hours of administration, the time to achieve the full therapeutic effect ranged from about 4 weeks to 4 months in clinical trials.


Q: If I start feeling better, does that mean Omal is working?

A: Regulatory documents describe effectiveness based on specific, measured outcomes used in clinical trials, such as the reduction in symptom scores or asthma flare-ups. A patient’s personal experience may vary, and official documentation does not explicitly define how a patient should interpret feeling 'better' in relation to the medicine's measured effect.


Q: Are there any specific over-the-counter medicines or supplements that can't be taken with Omal?

A: The official product information for Omeprazole states it must not be used with rilpivirine-containing medicines. Warnings also advise avoiding co-administration with the antiplatelet drug clopidogrel and certain antiretroviral medicines like nelfinavir. This specific guidance is for prescription-strength Omeprazole. Information regarding the co-administration of over-the-counter products should be clarified by a healthcare professional.


Q: Is it common to feel tired after taking Omal?

A: According to the official product information for Omalizumab, fatigue (feeling tired) is listed as an uncommon adverse reaction, meaning it occurred in less than 1% of users during clinical trials.


Q: Can taking Omal make me more likely to get sick?

A: Regulatory documents describe a possible association with an increased risk of Clostridium difficile-associated diarrhea (CDAD) with Omeprazole. For the biologic Omalizumab, the official label notes a potential risk of parasitic infections. These events are reported through surveillance and clinical trial data.


Q: Is Omal only for severe cases of the condition, or can it be used for mild cases too?

A: Official labeling for Omalizumab describes its use as an add-on therapy, typically in cases of moderate to severe persistent allergic asthma and severe chronic rhinosinusitis with nasal polyps, among other uses. The decision for use is generally tied to specific severity criteria.


Q: Is Omal known to interact with alcohol?

A: Regulatory guidance for Omeprazole notes that alcohol can increase the amount of acid produced in the stomach. This may counteract the medicine's effect of reducing acid-related symptoms, which is why alcohol consumption may be limited while using the medication.


Q: Does Omal contain any common allergens I should know about?

A: The official product information contains a complete list of all ingredients, including inactive ones (excipients). Use is strictly contraindicated if a patient has a known allergy or hypersensitivity to the active substance omalizumab or any of the ingredients in the formulation.


Q: Can Omal cause changes in mood or anxiety?

A: According to the official safety profile for Omeprazole, adverse effects such as mood changes or confusion have been reported, although these events are considered rare.


Q: Is Omal a type of steroid?

A: No. The regulatory classification for the active substance Omeprazole is a Proton Pump Inhibitor (PPI), which reduces stomach acid. The active substance Omalizumab is a Monoclonal Antibody, which targets the IgE molecule. Neither of these drug classes is categorized as a steroid.


Q: Is Omal a curative medicine or a management treatment?

A: The medicine Omalizumab is indicated as an add-on therapy to improve the control of a condition. It is described as a management approach for chronic conditions and is not indicated for the emergency treatment of acute attacks.


Q: What kind of specialist usually manages Omal treatment?

A: Official prescribing information describes that treatment with Omalizumab requires initiation and management by a specialist, such as an allergist, immunologist, or pulmonologist.


Q: Does Omal cause weight gain?

A: For the medicine Omalizumab, weight increase is listed in the official safety documents as an uncommon adverse reaction, meaning it was reported in less than 1% of users during clinical trials.


Q: How long does the effect of one dose of Omal typically last?

A: The dosing schedule for Omalizumab is typically every two or four weeks, reflecting the sustained duration of its activity in the body. Regulatory documents note that the medicine is slowly absorbed, with peak concentrations reached about 7 to 8 days after administration.


Q: Can Omal affect my ability to drive or operate machinery?

A: The official label advises caution because some of the reported common side effects of Omalizumab, such as dizziness and somnolence (drowsiness), may affect a person's ability to drive or operate machinery safely.

How should Omal be stored and disposed of?

How to Store and Dispose of Omal?

This section outlines the official, label-based requirements for the storage and disposal of Omal (Omeprazole Delayed-Release Capsules/Tablets).


Official Storage Requirements

Condition Regulatory Rule
Temperature Store at a controlled room temperature, typically not exceeding 25 C or 30 C.
Protection Keep protected from light and moisture; avoid storing in high-humidity areas like the bathroom.
Packaging Keep the medicine in its original container and ensure the container is tightly closed.
Child Safety Must be kept out of the sight and reach of children.

Disposal and Stability Rules

The medicine's stability requires that any capsule contents prepared for alternative administration (e.g., mixing granules with food) must be used immediately and not stored. For disposal of unused or expired product, official guidance recommends using a drug take-back program or following specific instructions for secure disposal with household trash, which requires mixing with an undesirable substance and sealing before discarding. The medicine must not be flushed down the toilet.

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

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