Nebilong-H

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Nebilong-H

Method of action: Antihypertensive, Diuretic

Treatment option:

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 Nebilong-H

Property Description
Active ingredients Nebivolol, Hydrochlorothiazide (HCTZ)
Form Oral Tablet (Fixed-Dose Combination)
Pharmacological class Antihypertensive Agent, Diuretic-Beta-blocker Combination
Common use Management of high blood pressure (Essential Hypertension)
Origin Synthetic Compound

What Type of Medicine is Nebilong-H? (Definition and Classification)

Nebilong-H is a Fixed-Dose Combination (FDC) cardiovascular medicine, recognized as an Antihypertensive Agent. This prescription medication is supplied as an oral tablet for systemic administration and falls within the Diuretic-Beta-blocker Combination pharmacological group. The FDC approach is clinically recognized for its potential to improve therapeutic adherence compared to regimens involving multiple separate tablets, simplifying the management of essential hypertension in adults.

Composition: Nebivolol, Hydrochlorothiazide, and Dual-Action

This dual-action formulation contains the two primary active ingredients / chemical substances: Nebivolol and Hydrochlorothiazide (HCTZ), both of synthetic origin. Nebivolol is the highly selective beta-blocker component, while Hydrochlorothiazide provides the essential thiazide diuretic component, contributing to volume reduction. Research on this pairing, specifically combining a third-generation beta-blocker with a diuretic, has been studied and confirmed to provide a stable and consistent reduction in blood pressure.

What is the General Purpose of This Combination Therapy?

The general purpose of this combination therapy is to provide comprehensive support for managing elevated blood pressure by leveraging the unique strengths of each component. The combined physiological actions ensure that the drug reduces the mechanical strain on the heart, while simultaneously using Hydrochlorothiazide's natriuretic action to reduce the total fluid volume in the circulation. This efficient, two-pronged strategy results in a substantial and reliable reduction of peripheral vascular resistance, serving as the primary practical benefit for patients utilizing this cardiovascular medication when initial single-agent therapy is insufficient.

Regulatory References

  1. MedlinePlus: Nebivolol Drug Information

What side effects are possible with Nebilong-H?

Possible side effects and safety information

Regulatory documentation for the combination of Nebivolol and Hydrochlorothiazide formally details adverse reactions based on clinical trial and post-marketing experience. These are organized by frequency and the physiological systems affected, in accordance with regulatory standards.

Adverse reactions are classified into categories such as Common and Uncommon. Common effects, reported in 1% to 10% of users, include headache, fatigue, dizziness, paresthesia (unusual sensations), constipation, nausea, and diarrhea.

Effects are grouped by System-Organ Class (SOC) and involve Cardiac disorders (e.g., bradycardia), Nervous System disorders, Metabolism and Nutrition disorders (e.g., fluid and electrolyte imbalance), Eye disorders, and Skin and Subcutaneous tissue disorders.

Serious Adverse Reactions and Safety Constraints

The official label highlights specific, clinically significant risks. For the Hydrochlorothiazide component, a risk of Acute Angle-Closure Glaucoma is documented, typically occurring rapidly within hours to weeks of initiation. Furthermore, an increased risk of Non-Melanoma Skin Cancer (Basal cell carcinoma and Squamous cell carcinoma) is associated with long-term, increasing cumulative exposure to Hydrochlorothiazide.

Safety restrictions exist for certain populations. The medicine is contraindicated in patients with severe hepatic impairment, severe renal insufficiency (creatinine clearance < 30 ml/min), and specific pre-existing cardiac conditions, including severe bradycardia and decompensated cardiac failure. Use during the second and third trimesters of pregnancy is associated with a risk of fetal morbidity and death.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose involving Nebilong-H, which contains Nebivolol and Hydrochlorothiazide, results in documented clinical manifestations from both active components, necessitating urgent medical care. Official regulatory information describes severe cardiovascular presentations, including abnormally slow heart rate (severe bradycardia), dangerously low blood pressure (hypotension), and advanced heart block. Overdose may escalate to life-threatening outcomes such as acute heart failure, cardiogenic shock, and respiratory distress.

Toxicological effects of the hydrochlorothiazide component involve profound fluid and electrolyte imbalance, specifically hypokalaemia, hyponatraemia, and volume depletion, which may cause symptoms like severe weakness, drowsiness, and muscle cramps. In patients with pre-existing hepatic impairment, these metabolic disturbances carry the risk of precipitating hepatic coma.

Suspected or known overdose requires immediate medical attention. Regulators mandate management with general supportive measures and specific symptomatic treatments tailored to the clinical presentation. These required interventions, outlined in prescribing information, include the use of intravenous atropine, vasopressors, and intravenous fluids to manage hemodynamic instability. Hemodialysis is not expected to enhance nebivolol clearance due to its high plasma protein binding.

Therapeutic Uses of Nebilong-H

What Nebilong-H Treats: Main Uses and Benefits

Nebilong-H is a combination medication applied across domains where additional symptomatic support is needed, primarily for managing cardiovascular concerns. The medication is commonly used to help with conditions characterized by periods of heightened symptoms related to elevated blood pressure, which presents with symptoms linked to systemic imbalance and heightened physiological activity.

The primary application is in situations involving certain distressing symptoms linked to cardiovascular stress, including the management of persistent high blood pressure and associated fluid and volume symptoms.

The overall approach is relevant when supportive symptom management is appropriate. The use of this medicine contributes to improved comfort during periods of heightened symptoms. This strategy helps manage the symptom clusters that interfere with daily functioning and assists with maintaining functional stability.


Quick Fact: Support for Systemic Imbalance

This medicine is applied in clinical settings that involve acute or unstable symptom patterns by addressing symptoms related to systemic imbalance, thereby providing support that helps ease the overall burden of symptoms.


The overall management approach, applied during phases when symptoms become more noticeable, may be part of symptomatic management to support the patient during difficult episodes and contributes to improved comfort during periods of heightened symptoms.

Eligibility and Restrictions for Use

Official Eligibility Profile

Nebilong-H (Nebivolol/Hydrochlorothiazide) is approved for use in adults with essential hypertension whose blood pressure is adequately controlled on the individual components given concurrently. The eligibility profile is strictly defined by government regulatory documents, outlining groups who must avoid the medicine due to contraindications or lack of safety data.

Eligibility Status Key Restriction (Official Labeling)
Absolute Contraindication Severe Organ Dysfunction: Patients with Anuria, Severe Renal Insufficiency (Creatinine Clearance < 30 mL/min), or Severe Hepatic Impairment must not use Nebilong-H [Source 1.2, 2.8].
Absolute Contraindication Cardiac Conditions: Contraindicated in patients with Acute Heart Failure, Cardiogenic Shock, Severe Bradycardia, Second or Third Degree Atrioventricular Block, or Sick Sinus Syndrome [Source 1.1, 2.8].
Absolute Contraindication Metabolic/Other: Patients with Refractory Hypokalaemia, Metabolic Acidosis, or Hypersensitivity to Nebivolol, HCTZ, or any sulphonamide-derived substance are excluded [Source 1.1, 2.8].
Not Recommended Pediatric Population: Use in children and adolescents under 18 years is not recommended as efficacy and safety have not been established [Source 2.1, 2.2].
Not Recommended Pregnancy & Lactation: The medicine is not recommended for use in pregnant or breastfeeding women [Source 1.1].
Conditional Use Older Adults (75): Caution must be exercised, and these patients require close monitoring due to limited clinical experience [Source 1.2, 2.8].
Conditional Use Caution: Patients with less severe renal impairment, diabetes (due to masking of hypoglycemia symptoms), or Chronic Obstructive Pulmonary Disorders require cautious use [Source 1.2].

These eligibility rules structure who may use the medicine based on the absence of specific, severe co-existing medical conditions or physiological states, adhering strictly to official regulatory texts.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of this medicine, which combines nebivolol and hydrochlorothiazide (HCTZ), is defined by both pharmacokinetic and pharmacodynamic effects documented in official regulatory sources.

Contraindicated and Restricted Combinations

Co-administration with Lithium is generally not recommended as the HCTZ component is known to reduce lithium's renal clearance, which increases the risk of lithium toxicity.

Use is contraindicated with Aliskiren in patients diagnosed with diabetes. The combination is also generally not recommended with Class I antiarrhythmics (e.g., quinidine) and certain calcium channel antagonists of the verapamil or diltiazem type, due to the risk of potentiating negative effects on heart rate and conduction.

Pharmacokinetic and Pharmacodynamic Effects

Nebivolol exposure is increased when co-administered with medicines that inhibit the CYP2D6 enzyme (e.g., fluoxetine). This pharmacokinetic interaction can lead to substantially higher nebivolol plasma levels, particularly in individuals who are poor CYP2D6 metabolizers.

Digitalis glycosides (e.g., digoxin) combined with this medicine may increase the risk of bradycardia and atrio-ventricular conduction issues. The HCTZ component can also cause hypokalaemia, which raises the cardiotoxicity risk associated with digitalis. NSAIDs may reduce the antihypertensive and diuretic effects of HCTZ.

Regarding substances, consumption of alcohol may lead to a potentiation of orthostatic hypotension [Source 1.2, 4.1]. Official labeling notes that Nebivolol absorption is not affected by food [Source 4.3]. The medicine is contraindicated in patients with severe renal or hepatic impairment, as these conditions can significantly alter drug clearance and increase interaction severity.

Mechanism of Action

Regulating Cardiac Activity and Vessel Tone

The Nebivolol component acts through a dual mechanism on the sympathetic pathways. It is a highly selective mathbfbeta1-antagonist that blocks the effects of catecholamines on mathbfbeta1-adrenergic receptors in the heart, leading to a decrease in heart rate and force of contraction. Uniquely, it also acts as a mathbfbeta3-agonist in the vascular lining, triggering the release of Nitric Oxide (NO) via the mathbfeNOS pathway. This NO production promotes vasodilation (arterial widening), thereby reducing the Peripheral Vascular Resistance (PVR).

Modulating Circulating Fluid Volume

The Hydrochlorothiazide (HCTZ) component is active within the renal system. It acts as an inhibitor of the Sodium-Chloride Co-transporter (NCC) in the kidney's distal convoluted tubule. By blocking this transporter, HCTZ prevents the reabsorption of sodium and chloride back into the bloodstream. Water follows the unabsorbed salt by osmosis, which determines the natriuresis and diuresis (increased excretion of water and salt). This process contributes to a decrease in total circulating plasma volume and fluid pressure within the cardiovascular system.

Dosage and Administration Information

Nebilong-H is intended for oral administration as a Fixed-Dose Combination (FDC) tablet, typically containing strengths such as 5 mg of Nebivolol and 12.5 mg of Hydrochlorothiazide, or 5 mg of Nebivolol and 25 mg of Hydrochlorothiazide. The medicine is taken once daily (q.d.), which constitutes the established maintenance dose in adults. For consistent systemic exposure, administration should occur preferably at the same time each day. The tablet can be taken with or without food.

Administration Details

The FDC is used in patients whose condition is already controlled on the corresponding monotherapy components. When taking the tablet, it should be swallowed whole with some water. If the tablet features a score or break line, it is understood that this line is intended to facilitate swallowing and not to divide the dose into two equal parts for separate administration.

Use Over Time and Special Populations

If a dose is forgotten and a long delay has passed since the scheduled time, the standard approach is to skip the missed dose and take the next scheduled dose as planned; repeated skipping of doses is not advised. Use is not recommended in children and adolescents below 18 years of age due to insufficient data. Furthermore, the FDC is contraindicated in patients with established severe renal impairment or hepatic impairment. Should a patient need to stop treatment involving the Nebivolol component, the medicine must be discontinued gradually over a period of time, such as by reducing the dose in weekly steps, to avoid physiological rebound.

Recent Clinical Evidence

Evidence for Managing Essential Hypertension (High Blood Pressure)

Research exploring this combination medicine was evaluated primarily in Randomized Controlled Trials (RCTs) and Pooled Analyses for its application in high blood pressure. These studies, which compare the medicine against a placebo or other single-agent treatments, are used to measure initial findings. Research also includes Non-Interventional Studies that examine patterns observed in participants in daily-life settings.

Studies monitored several key factors, including the change in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP), which were the primary endpoints that regulatory bodies reviewed. Researchers also examined the rate at which participants reached predefined blood pressure goals and tracked changes in certain metabolic parameters, such as blood glucose and lipid profiles, as part of the overall assessment.

Studies Involving Special Populations

The initial research was evaluated in the general adult population with mild to moderate high blood pressure. However, researchers explored how the combination was evaluated in specific sub-groups. Dedicated analyses were observed in patterns for older adults (the elderly) and for participants who had co-existing Type 2 Diabetes. For other groups, such as children or women who are pregnant, data remain insufficient, and the results apply only to the populations studied.

Research Gaps and Areas of Uncertainty

The research base for this specific combination medicine is supported by trials where follow-up durations were limited, typically lasting between 6 and 12 weeks for the primary endpoint evaluation. While this short-term evidence helps show what has been observed so far, evidence is limited for long-term outcomes specifically related to the Nebivolol and Hydrochlorothiazide combination. The long-term effects for this exact combination on preventing outcomes like stroke or heart attack are not fully established by its own dedicated long-term trials. Furthermore, evidence is limited for patients with severe forms of hypertension or significant organ impairment, meaning data for certain groups remain insufficient.

Frequently Asked Questions (FAQ)

Common questions about Nebilong-H (FAQ)

Q: What is the main difference between Nebilong-H and just taking Nebilong alone?

Nebilong-H is a combination medicine that includes Hydrochlorothiazide (HCTZ), a diuretic, alongside the Nebivolol component found in Nebilong. Official documents indicate this combination is prescribed for patients whose blood pressure is already adequately managed using the individual components taken together. The Hydrochlorothiazide component provides a diuretic action that complements the Nebivolol’s effects on the heart and blood vessels.

Q: How quickly does Nebilong-H usually start lowering blood pressure?

Studies show that the Nebivolol component reaches its highest level in the bloodstream relatively quickly, typically within a few hours. However, regulatory documents often note that the full blood pressure reduction effect is generally observed over a longer period, such as over the initial 2 to 12 weeks of continuous use.

Q: Can Nebilong-H cause changes in heart rate?

Yes, official safety information lists a decrease in heart rate, medically known as bradycardia, as a documented adverse reaction. Since Nebivolol is a beta-blocker, its action is to reduce the heart rate and force of contraction. Patients with certain pre-existing severe cardiac conditions are generally advised in official labeling not to use this medicine.

Q: What kind of common over-the-counter pain relievers might interact with Nebilong-H?

Official labeling notes that Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may interact with this combination medicine. NSAIDs, a class that includes some common over-the-counter pain relievers, may reduce the blood pressure-lowering and fluid-reducing effects of the Hydrochlorothiazide component.

Q: Does Nebilong-H affect blood sugar levels?

Regulatory documents indicate that the medicine may affect blood sugar control. The beta-blocker component (Nebivolol) may potentially mask certain symptoms of low blood sugar. Additionally, the thiazide component (HCTZ) may impair glucose tolerance, which could affect blood sugar levels.

Q: Does Nebilong-H have known interactions with common supplements like potassium or magnesium?

The Hydrochlorothiazide component (HCTZ) can cause imbalances in the body’s fluids and electrolytes, specifically leading to low levels of potassium (hypokalaemia) and magnesium. Official warnings advise monitoring electrolytes because imbalance can increase the risk of certain cardiotoxicity issues.

Q: What should be monitored by a doctor while a patient is taking Nebilong-H?

Official guidelines advise periodic monitoring of a patient’s serum electrolytes (like potassium) and glucose tolerance during therapy. Furthermore, due to the link between long-term exposure to HCTZ and an increased risk of Non-Melanoma Skin Cancer, monitoring for any suspicious changes to the skin is also described as a necessary precaution.

Q: What should I expect in terms of energy levels when starting Nebilong-H?

Official documentation lists fatigue and tiredness as common adverse reactions, meaning they are reported in 1 to 10% of users in clinical trials. This is a recognized general expectation when beginning treatment with this combination medicine.

Q: Do people typically experience dizziness or lightheadedness when using Nebilong-H?

Yes, dizziness is noted as a common adverse reaction in official safety information. Experiences of lightheadedness, especially when quickly standing up, are related to a drop in blood pressure (orthostatic hypotension), which is a recognized risk associated with the drug.

Q: Is it common to have to urinate more often when taking Nebilong-H?

The Hydrochlorothiazide component is a diuretic, often called a 'water pill,' and its mechanism involves increasing the excretion of water from the kidneys. While increased urination is the expected function of this component, some regulatory documents specifically list Polyuria (frequent urination) as an uncommon adverse effect.

Q: Are there certain foods or drinks that should be avoided with Nebilong-H?

Official labeling specifically notes that consuming alcohol may increase the risk of orthostatic hypotension (dizziness upon standing). However, the medicine may be taken with or without food, as regulatory information indicates that food does not generally affect the Nebivolol component’s absorption.

Q: Is Nebilong-H generally prescribed for long-term use?

This medicine is indicated for the treatment of essential hypertension, a condition that typically requires long-term management. While its use is usually sustained, regulatory data for this specific combination is primarily based on short-term studies, and evidence for long-term cardiovascular outcomes remains limited.

Q: What is the experience of stopping Nebilong-H, based on studies?

Official guidance states that abrupt discontinuation of the Nebivolol component is not recommended, particularly for individuals with coronary artery disease. Stopping suddenly can lead to a severe worsening of heart-related symptoms. Instead, regulatory documents advise that the medicine be discontinued gradually over one to two weeks.

Q: Is Nebilong-H appropriate for older adults?

The medicine can be used in older adults, but official eligibility documents indicate that caution must be exercised in patients who are over 75 years of age. Official documentation indicates that these patients require close monitoring due to limited clinical experience and data specific to this age group.

Q: Does Nebilong-H affect sleep or cause insomnia?

The adverse event reporting section for the Nebivolol component has listed insomnia (trouble falling or staying asleep) and general sleeplessness as less common side effects reported during post-marketing experience.

Q: Is it possible for Nebilong-H to cause muscle cramps?

Yes, official warnings regarding fluid and electrolyte imbalance state that signs of this imbalance can include muscle pain or cramps and muscular weakness or fatigue. This is a risk associated with the Hydrochlorothiazide component and its effects on the body's mineral levels.

Q: What are the most common reasons a doctor might choose Nebilong-H over a different blood pressure medicine?

Regulatory documents indicate the combination is generally prescribed when a patient’s blood pressure is not adequately controlled by single-agent therapy using either Nebivolol or Hydrochlorothiazide alone. The fixed-dose combination strategy is recognized for its potential to simplify the dosing regimen.

Q: Is it true that Nebilong-H might raise uric acid levels?

Yes, official documentation states that treatment with a thiazide diuretic like Hydrochlorothiazide may increase uric acid levels (hyperuricaemia) and/or precipitate (bring on) gout in certain patients. This is a known metabolic effect associated with the diuretic component.

Q: Does Nebilong-H help with swelling or water retention?

The Hydrochlorothiazide component is designed to act as a diuretic, which is commonly described as helping the body excrete excess salt and water. This physiological action serves to reduce the total fluid volume in the circulation, which can help address fluid accumulation or swelling.

Q: Could Nebilong-H affect the results of certain lab tests?

Yes, regulatory information indicates that the medicine can affect certain lab parameters. The thiazide component is associated with potential increases in cholesterol and triglyceride levels. Monitoring of key serum electrolytes and glucose tolerance is also advised during therapy.

Q: Is Nebilong-H a first-line treatment for high blood pressure?

Official documentation specifies that this fixed-dose combination is generally indicated for patients whose blood pressure is already adequately controlled on the individual components given concurrently. This positioning in regulatory texts places it after the initial use of single-agent therapies in the typical treatment sequence for essential hypertension.

Q: Is there a link between Nebilong-H and depression or mood changes?

Official adverse event reporting lists depression as an uncommon side effect associated with the Nebivolol component. Other nervous system disorders and general mood changes may also be reported in official safety documentation.

Q: Does Nebilong-H cause weight gain or loss?

Adverse event reporting for the Nebivolol component in post-marketing experience has included reports of both weight increase and weight decrease. This suggests that changes in body weight are not a universally consistent effect of the medicine.

How should Nebilong-H be stored and disposed of?

How to Store and Dispose of Nebilong-H?

Nebilong-H (nebivolol and hydrochlorothiazide tablets) must be stored and disposed of according to the requirements specified in its official regulatory labeling to ensure product stability and safety.

Official Storage Requirements

Condition Regulatory Requirement
Temperature Store the medicinal product below 30 C
Shelf Life 3 years when stored correctly
Child Safety Keep out of the reach of children

Storage adherence to the maximum temperature limit is essential to maintain the product's official shelf life. The tablets should be kept in their original packaging.

Disposal Instructions

Official regulatory documents state there are no special requirements for the disposal of unused or expired Nebilong-H. Consequently, the medicine must be discarded in accordance with local regulations for pharmaceutical waste.

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

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