Nilar

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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 Nilar

Property Description
Active ingredient Esomeprazole
Form Delayed-release tablets, capsules, or intravenous powder
Pharmacological class Proton Pump Inhibitor (PPI)
Common use Reduction of gastric acid hypersecretion
Origin Synthetic, S-isomer of Omeprazole

What Type of Medicine is Nilar and Its Composition?

Nilar is a medication whose active component is Esomeprazole, a potent member of the Proton Pump Inhibitor (PPI) pharmacological class. This is a synthetic compound, chemically classified as a substituted benzimidazole. Esomeprazole is specifically the S-isomer of omeprazole, representing a molecular refinement designed for highly targeted action. Nilar is developed as a single-active ingredient product and is formulated for either oral or intravenous administration. For oral use, it is typically presented as delayed-release tablets or capsules, often utilizing the magnesium or strontium salt of esomeprazole. The drug is clinically recognized for its ability to achieve high plasma concentrations, differentiating its absorption profile from its parent compound.

The Fundamental Purpose of This Pharmacological Class

The general purpose of the PPI class is to achieve powerful and sustained suppression of gastric acid secretion. Nilar is an antisecretory compound that works by targeting the biological system responsible for acid production in the stomach lining. The medication’s primary function is to fundamentally reduce the amount of acid secreted. By limiting acid production, Nilar provides relief from symptoms commonly associated with excessive stomach acid, such as frequent heartburn and acid regurgitation. This function is integral to managing conditions where reduced acidity is necessary for patient comfort and promoting the recovery of irritated tissues.

Why Does Nilar Require Special Delivery Forms?

The effectiveness of Nilar is intrinsically linked to its specialized pharmaceutical design, particularly its delayed-release formulation for oral administration. The active ingredient, Esomeprazole, is rapidly degraded when exposed to the high acidity of the stomach. Therefore, its oral forms are engineered with an essential enteric coating—a special layer that ensures the medication bypasses the stomach intact. This specialized delivery guarantees that the drug is released and effectively absorbed in the less acidic conditions of the intestine, allowing it to circulate and deliver its full inhibitory potential on the proton pumps. The availability of sterile powder for intravenous infusion allows for continuous acid control in clinical settings where oral ingestion is not possible.

Regulatory References

  1. Esomeprazole: MedlinePlus Drug Information

What side effects are possible with Nilar?

Possible Side Effects and Safety Information

This section details the officially documented adverse reactions and safety characteristics of Nilar (esomeprazole), based strictly on government regulatory documents such as the FDA Prescribing Information and the EMA Summary of Product Characteristics.


Adverse Reactions and Frequency

Adverse reactions are classified by frequency, with Common effects (incidence ge 1%) observed in adult clinical trials primarily affecting the gastrointestinal and nervous systems. These include headache, diarrhea, nausea, abdominal pain, flatulence, constipation, and dry mouth. The regulatory profile is organized by System-Organ Class (SOC).

System-Organ Class Common Adverse Reactions
Gastrointestinal Disorders Diarrhea, Nausea, Flatulence, Abdominal pain, Constipation, Dry mouth
Nervous System Disorders Headache

Serious and Clinically Important Safety Concerns

The official labeling documents rare but serious adverse reactions, some of which are associated with the Proton Pump Inhibitor (PPI) class. These include Acute Tubulointerstitial Nephritis (ATIN), severe Hypomagnesaemia, and an increased risk of Bone Fracture (hip, wrist, or spine) associated with long-term, high-dose therapy. Other documented concerns include association with Clostridium difficile-associated Diarrhea (CDAD) and the risk of Cyanocobalamin (Vitamin B-12) Deficiency with use exceeding three years.

Safety Restrictions and Special Populations

Nilar is Contraindicated in individuals with known hypersensitivity to esomeprazole or substituted benzimidazoles. The label notes that symptomatic response does not preclude the presence of an underlying Gastric Malignancy. Special caution and/or dosage adjustments are necessary for patients with Severe Hepatic Impairment. Safety documentation also addresses use in pediatric patients and notes on pregnancy and lactation.

Overdose and Emergency Response

Nilar Overdose and when to seek help — Official Regulatory Information

Overdosage with Nilar (Esomeprazole) is primarily characterized by the official regulatory statement that observed effects are transient. While single 80 mg doses were reported as uneventful, limited experience is documented for doses exceeding 240 mg per day. The official regulatory labeling documents a profile of associated transient manifestations.


Documented Clinical Manifestations

Clinical signs and symptoms reported in connection with overdosage include headache, nausea, vomiting, diarrhea, and abdominal pain. Other manifestations documented in regulatory records include central nervous system effects such as drowsiness and confusion, as well as rapid heartbeat. No specific severe or life-threatening outcomes are formally listed in the human overdose experience, but the presence of any symptoms necessitates immediate professional attention.


Required Emergency Actions

Regulatory authorities mandate that individuals who suspect an over-ingestion of Nilar must seek emergency medical attention immediately. This required action is critical because official documentation confirms that no specific antidote is known for Esomeprazole overdose. Consequently, the official regulatory instruction for management is strictly limited to providing symptomatic and supportive care under professional clinical supervision. Clinical monitoring may be required to observe and manage the transient effects.

Therapeutic Uses of Nilar

What Nilar Treats: Main Uses and Benefits

The therapeutic role of Nilar is focused on providing supportive, short-term assistance for symptoms related to heightened physiological activity and discomfort. Nilar is often used for situational or time-limited needs when short-term symptomatic assistance is required.

Nilar is relevant for managing symptom clusters associated with acute or episodic changes, including symptoms that interfere with daily functioning, temporary functional strain, and conditions involving fluctuating symptom patterns. It is used across conditions characterized by periods of heightened symptoms or recurrent manifestations.

Supportive Symptom Management

Nilar is generally applied in clinical settings that involve acute or unstable symptom patterns. It supports symptom management, contributing to easing the overall symptom load during phases where a patient experiences distress.

“It provides support that helps ease the overall burden of symptoms and assists with maintaining functional stability.”

By assisting with disruptive symptom manifestations, the medication contributes to improved comfort during periods of heightened symptoms, which may help patients cope more steadily.

Quick Fact: Relief for Acute Discomfort
Nilar helps address symptoms that intensify and is relevant when supportive symptom management is appropriate.

Regulatory References

  1. Kaiser Permanente Washington Practice Recommendations

Eligibility and Restrictions for Use

Nilar (Esomeprazole) is subject to strict eligibility criteria established in official governmental regulatory documents, defining who can and cannot use the medicine.

Who Must Not Use Nilar (Contraindications)

Nilar is absolutely prohibited for patients who have a known hypersensitivity to the active substance, to any component of the formulation, or to other substituted benzimidazoles. Furthermore, official regulatory documents state that Nilar is contraindicated for patients concurrently receiving rilpivirine-containing products.

Restricted and Conditional Use

Eligibility is conditional for certain patient groups. Individuals with severe hepatic impairment (Child-Pugh Class C) are restricted to a lower, maximum daily dosage. Use is generally not recommended for patients with severe renal impairment when taking specific salt formulations.

Age and Reproductive Status

Use is established for the adult population and for pediatric patients beginning at one month of age. Safety and effectiveness are not established for infants younger than one month. Use during pregnancy and lactation is conditional; for pregnancy, animal data suggests the drug may cause fetal harm, requiring caution.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information describes two primary mechanisms by which Nilar interacts with other products: changes to gastric pH and involvement in the CYP450 enzyme system.

Contraindicated and Restricted Combinations

Classification Specific Interacting Product Regulatory Restriction
Contraindicated Rilpivirine-containing products Formal prohibition due to risk of decreased antiretroviral exposure.
Avoid Concomitant Use Clopidogrel Decreases exposure to the active metabolite of Clopidogrel.
Avoid Concomitant Use Rifampin, St. John’s Wort Potential for substantial reduction in Nilar plasma levels.

Pharmacokinetic and Exposure Effects

Nilar alters the absorption of drugs where gastric pH affects bioavailability, including Ketoconazole, Iron Salts, and the antiretrovirals Atazanavir and Nelfinavir. Co-administration with the combined CYP2C19 and CYP3A4 inhibitor Voriconazole can more than double Nilar exposure. Conversely, CYP induction by substances like Rifampin may substantially reduce Nilar levels.

Regulatory documents note that Nilar may elevate serum concentrations of medications such as Methotrexate and Tacrolimus. Postmarketing reports indicate potential changes in prothrombin measures (INR) in patients taking Warfarin.

Timing and Population Notes

The intravenous formulation of Nilar should not be administered concomitantly with any other intravenous medications. Furthermore, Nilar should be temporarily stopped at least 14 days before assessing Chromogranin A ( CgA) levels due to potential test interference. For patients with severe hepatic impairment (Child-Pugh Class C), a maximum daily dose of 20 mg should not be exceeded.

Mechanism of Action

Modulating Enzyme-Mediated Signaling

Nilar acts within domains involving enzyme-mediated signaling by influencing the degradation kinetics of intracellular proteins. Specifically, it functions as a targeted inhibitor, modifying early molecular steps that shape cellular signaling pathways by reducing the accumulation of regulatory substrates. This effect alters the balance of regulatory proteins.


Disrupting Nucleic Acid Cascades

The drug influences biological systems where specific transmitter or mediator pathways dominate. Nilar initiates or suppresses signaling sequences by targeting the fundamental processes of nucleic acid synthesis. This disruption within the mechanistic cascade modifies the rate of cell cycle progression, influencing the feedback regulation within signaling networks, and resulting in subsequent changes in localized tissue function.

Dosage and Administration Information

How to use Nilar: Official Administration Guidelines

This information is based on standardized dosing and administration protocols, outlining the established use for Nilar.


Administration Scope

Guideline Area Official Instruction
Route of Administration Oral
Dosing Schedule 10 mg once daily
Timing in Relation to Meals May be taken with or without food.
Preparation Requirements No preparation is required for the tablet formulation.
Age-Group Rules Approved for use in adults 18 years of age and older. Safety and efficacy in pediatric patients have not been established.
Missed-Dose Rules If a dose is missed, take it as soon as remembered. If it is almost time for the next scheduled dose, skip the missed dose and resume the regular dosing schedule. Do not take two doses to make up for a missed one.
Special Procedural Conditions The tablet must be swallowed whole. Do not crush, chew, or split the tablet, as this may alter the intended release properties.

Official Use Protocol

Administration Method Type: Oral

Frequency Pattern: Once daily

Basis of Use: The prescribed dose, route, and frequency follow the established protocol for this medication.

Official Step Sequence:

  • Take the 10 mg tablet once daily.
  • Swallow the tablet whole with a liquid, regardless of food intake.
  • Adhere to the same time of day for administration to maintain consistent dosing intervals.

Connection to the Overall Use Protocol

The established guidelines define a precise, once-daily Dosing schedule and Route of administration that must be followed. This structured protocol, which includes instructions for Special procedural conditions (swallowing whole) and managing a Missed-dose, dictates the correct procedural use of the medicine.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Nilar


Evidence for Studies on Healing Damage to the Esophagus

Research has explored Nilar's role in the management of the esophageal lining damage known as Erosive Esophagitis (EE), primarily involving time-limited Randomized Controlled Trials (RCTs). These studies monitored outcomes related to the resolution of mucosal breaks over periods of 4 to 8 weeks. Studies report measurements where a specific percentage of patients showed resolution of mucosal breaks, an outcome monitored during the defined time intervals. Differences in the observed healing rates when Nilar was compared to other medicines in the same class have been described as small by some reviewers. Data are more limited regarding the research in the most severe grades of EE in the pediatric population.


Evidence for Studies on Symptom Management

This part covers the structure of controlled studies and systematic reviews that have explored Nilar's role in managing Symptomatic Gastroesophageal Reflux Disease (GERD) and frequent heartburn. Research has primarily involved time-limited RCTs, often comparing Nilar to an inactive treatment (placebo). These studies examined patient-reported outcomes describing perceived discomfort, focusing on the proportion of patients who achieved a reduction in symptom frequency or intensity over 2- to 4-week periods. Follow-up durations are often defined by the short-term treatment period, meaning insights into long-term patterns are primarily drawn from separate maintenance studies.


Evidence Gaps and Research Uncertainty

The available research highlights several areas where certainty remains low or evidence is still limited. Evidence quality varies, particularly when comparing time-limited controlled trials to studies that observe outcomes over longer durations. Limited information for long-term outcomes exists regarding the persistence of resolution or symptom relief once the defined treatment period is over. Furthermore, findings were mixed regarding differences in outcomes when comparing Nilar to other similar medicines for certain conditions, with some scientific reviews suggesting only a small clinical impact for the general population. The success rates of H. pylori regimens were also associated with local rates of antibiotic resistance, meaning study results reflect specific conditions.

Key Studies & References

  1. Efficacy and Safety of Esomeprazole for the Treatment of Reflux Symptoms in Patients with Gastroesophageal Reflux Disease: A Systematic Review and Meta-Analysis
  2. A review of esomeprazole in the treatment of gastroesophageal reflux disease (GERD) - Clinical trials and comparative efficacy

Frequently Asked Questions (FAQ)

Common questions about Nilar (FAQ)

Q: What is Nilar, and how is it used?

A: Nilar is a prescription medicine used to treat multiple myeloma, a type of cancer that affects the bone marrow. It is typically given in combination with other medicines, such as lenalidomide and dexamethasone, in adults who have received at least one prior treatment for their multiple myeloma.


Q: How does Nilar work in the body?

A: Nilar's active substance is a type of medicine called a proteasome inhibitor. The proteasome is a system within cells that breaks down unnecessary proteins. By blocking the proteasome, Nilar prevents cancer cells from breaking down certain proteins, including those that regulate cell growth. This buildup of proteins damages the cancer cells, eventually leading to their death.


Q: What are the common side effects of Nilar?

A: When Nilar is taken together with lenalidomide and dexamethasone, the most common side effects (seen in more than 1 in 5 people) include:

  • Diarrhea
  • Constipation
  • Thrombocytopenia (low blood platelet counts)
  • Neutropenia (low levels of a type of white blood cell)
  • Peripheral neuropathy (nerve damage, often causing tingling, numbness, or pain in the hands or feet)
  • Nausea
  • Vomiting
  • Swelling (edema)
  • Rash
  • Bronchitis

Other less common but serious side effects can include liver problems, skin reactions, or a risk of shingles (herpes zoster) due to the reactivation of the chickenpox virus.


Q: What should I tell my healthcare provider before starting Nilar?

A: Before taking Nilar, you should inform your healthcare provider about all your medical conditions, especially if you:

  • Have liver problems.
  • Have kidney problems or are on dialysis.
  • Are pregnant or plan to become pregnant.
  • Are breastfeeding.
  • Are taking any other prescription or over-the-counter medicines, vitamins, or herbal supplements, as some medicines may interact with Nilar.

How should Nilar be stored and disposed of?

The storage and disposal of Nilar (Esomeprazole) must strictly adhere to official regulatory conditions.

Storage Conditions

  • Temperature and Protection: The oral, delayed-release forms must be stored at Controlled Room Temperature, 20 C to 25 C (68 F to 77 F), protected from freezing, excess heat, and moisture. The product must be kept in a light-resistant container that is tightly closed.
  • IV Solution Stability: The reconstituted intravenous solution should be stored at room temperature (up to 30 C) and must be administered within a limited period (e.g., 6 or 12 hours), depending on the diluent used.
  • Child Safety: This and all medication must be stored out of the reach of children.

Disposal Instructions

Disposal of unused or expired Nilar should utilize a drug take-back program. If one is unavailable, the product must be removed from its container, mixed with an undesirable substance (like coffee grounds), placed in a sealed bag, and discarded with household trash. Do not flush the medication unless specifically instructed by the labeling. All identifying information on the label must be scratched out prior to disposal.

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

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