Biconcor

Quick links to important sections

Medically reviewed

Marina Burgos

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 Biconcor

Property Description
Active ingredient Bisoprolol fumarate, Hydrochlorothiazide
Form Film-coated tablet
Pharmacological class Combination Antihypertensive Agent
Common purpose To regulate high blood pressure
Origin Synthetic

What Type of Drug is Biconcor?

Biconcor is a synthetic, prescription-only, fixed-dose combination product classified as a combination antihypertensive agent. This medication is an oral formulation that integrates two distinct pharmacological substances: a cardioselective beta-blocker and a thiazide diuretic, into a single tablet. The combination is a strategy to manage essential hypertension (high blood pressure) by initiating simultaneous action on two separate physiological systems. Fixed-dose combinations are used to enhance efficacy compared to monotherapy regimens, aiming for consistent blood pressure control. The formulation is also known under other brand names, such as Ziac in certain markets, yet its core identity remains this dual-action composition.

Biconcor's Composition and Physical Form

The core of Biconcor's composition is defined by its two active ingredients: Bisoprolol fumarate and Hydrochlorothiazide (HCTZ). These agents are presented in the oral form of a film-coated tablet. Bisoprolol fumarate functions as a highly selective beta-1 (beta1)-adrenergic receptor blocking agent, reducing the rate and force of heart contractions. The secondary component, Hydrochlorothiazide, is a benzothiadiazine diuretic that works in the kidneys to increase the excretion of excess sodium and water. This comprehensive composition ensures pressure is regulated both by modulating the heart's activity and by controlling the body's fluid balance, providing support for long-term cardiovascular maintenance.

What side effects are possible with Biconcor?

Possible Side Effects and Safety Information for Biconcor (Bisoprolol Fumarate)

The safety profile of Biconcor, a beta-blocker, is primarily characterized by effects related to the cardiovascular system and general systemic issues, as documented in regulatory clinical trials.

Frequency and Organ Systems Involved

Adverse reactions are classified by frequency, with some common effects typically being mild and transient, particularly at the start of therapy.

Classification Examples of Adverse Reactions (by System-Organ Class)
Very Common Bradycardia (slow heart rate) in chronic heart failure patients.
Common Headache, dizziness, fatigue, asthenia (weakness), feeling of coldness or numbness in extremities, hypotension (low blood pressure), gastrointestinal complaints (nausea, vomiting, diarrhea, constipation).
Uncommon Worsening of pre-existing heart failure, AV-conduction disturbances, sleep disorders, depression, muscle weakness, and cramps.
Rare Increased liver enzymes (ALAT, ASAT), hepatitis, hypersensitivity reactions (e.g., pruritus, rash), reduced tear flow, and erectile dysfunction.

Serious and Clinically Significant Safety Concerns

Serious adverse reactions observed in clinical trials, such as the CIBIS-II study, included all-cause mortality and sudden deaths; however, bisoprolol was shown to significantly reduce the occurrence of these events compared to placebo in patients with stable chronic heart failure. Worsening of heart failure and significant bradycardia are known risks associated with beta-blockers, particularly during initiation or dose titration, and require careful monitoring.

Safety Restrictions and Monitoring

Abrupt discontinuation of Biconcor, particularly in patients with coronary artery disease, has been associated with the risk of exacerbated angina, myocardial infarction, or ventricular arrhythmia. Therefore, regulatory guidance specifies that dosage reduction must be gradual, typically over a period of at least one week. The drug is contraindicated in patients with cardiogenic shock, overt cardiac failure, severe sinus bradycardia, and second- or third-degree AV block without a pacemaker. Patients with diabetes or kidney/liver impairment may require special caution and close monitoring.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Biconcor (Bisoprolol/Hydrochlorothiazide) identifies specific clinical manifestations that may occur in an overdose scenario. Overexposure may present as severe hypotension (very low blood pressure) and bradycardia (slow heart rate), reflecting the cardiovascular effects of the Bisoprolol component. The Hydrochlorothiazide component contributes to the risk of significant fluid and electrolyte imbalance, which can be identified by signs such as extreme thirst, weakness, muscular cramps, or changes in urine output.

More severe manifestations documented in regulatory materials include seizures, shock, and the possibility of other serious systemic complications. Due to the potential for these life-threatening outcomes, official regulatory guidance mandates immediate action: therapy should be stopped, and emergency medical attention must be sought immediately. Individuals are instructed to contact the Poison Help hotline without delay.

Management for Biconcor overdose is officially defined as symptomatic and supportive treatment. Regulatory documents note that there is no specific antidote available, and they describe procedures such as the use of sympathomimetic agents for the beta-blocker effects. A key procedural consideration is that limited data suggest the Bisoprolol component is not dialyzable.

Therapeutic Uses of Biconcor

What Biconcor Treats: Main Uses and Benefits

Biconcor is generally applied in contexts where additional symptomatic support is needed, particularly for symptoms that create noticeable physiological strain. The medicine is considered relevant when supportive symptom management is appropriate, particularly in clinical settings involving acute or unstable symptom patterns.

It is commonly used across conditions presenting with acute episodes, including those characterized by periods of heightened symptoms or episodic manifestations. The medicine is considered relevant for easing symptoms related to physical discomfort.


Managing Symptoms of Stress and Tension

Biconcor is relevant in contexts marked by increased discomfort or tension. The medicine is intended to offer symptomatic relief that helps patients cope more steadily with difficult episodes and supports general well-being during symptomatic phases. This is often used when symptoms intensify and supportive relief is needed.

Quick Fact: Relief for Heightened Physiological Activity


Providing Supportive Relief

Applied in contexts where additional symptomatic support is needed, Biconcor is used to assist in easing the overall symptom load in situations involving certain distressing symptoms. The medicine assists with maintaining functional stability when symptoms interfere with routine activities.

Eligibility and Restrictions for Use

Who Can and Cannot Use Biconcor? (Official Eligibility Profile)

The eligibility profile for Biconcor (Bisoprolol/Hydrochlorothiazide) is strictly defined by government regulatory documents, focusing on patient health status, age, and allergies.

Eligibility Scope

The medicine is officially approved for use in adults for the management of essential hypertension. However, use is contraindicated in several groups due to potential risks.

Contraindicated Populations:

  • Patients with known hypersensitivity to the active ingredients or to sulfonamide-derived drugs (sulfa allergies).
  • Individuals with severe cardiovascular issues, including decompensated heart failure, cardiogenic shock, and specific AV blocks (second or third degree without a pacemaker).
  • Patients with anuria (inability to urinate), severe renal impairment (creatinine clearance less than 30 mL/ min), or severe hepatic impairment.

Age-Related Eligibility:

  • Use is not established or not recommended for the pediatric population (individuals under 18 years of age).

Pregnancy and Lactation:

  • Use is generally not recommended during pregnancy, and routine use of diuretics is inappropriate. Use is also not recommended while breastfeeding.

Condition-Based Restrictions:

  • Caution is required for patients with conditions such as diabetes mellitus (due to masked hypoglycemia signs) and certain bronchospastic lung diseases (e.g., asthma).

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section describes formally documented interaction patterns for Biconcor (Bisoprolol/Hydrochlorothiazide) as published in government regulatory labels.


Documented Pharmacodynamic Interactions

Co-administration with other systemic beta-blocking agents is strictly prohibited. Caution is advised when combining Biconcor with other cardiac-acting medicines. Calcium Antagonists (Verapamil and Diltiazem types) require careful use due to potential additive effects on heart conduction. Similarly, Digitalis glycosides can increase the risk of slowed heart rate (bradycardia) when taken concurrently. Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may reduce the diuretic and antihypertensive efficacy of the hydrochlorothiazide component.


Pharmacokinetic and Timing Constraints

Rifampin is documented to increase the metabolic clearance of bisoprolol, resulting in a shortened elimination half-life. Cholestyramine or Colestipol resins interfere with the absorption of hydrochlorothiazide. To manage this interaction, the diuretic component should be taken at least 4 hours before or 4 to 6 hours after the administration of these resins. Consumption of alcohol may enhance the hypotensive effect of Biconcor. Furthermore, the official label notes that for patients with severe renal impairment, the plasma half-life of bisoprolol is significantly increased, which is an important consideration when evaluating other clearance-affecting agents.

Mechanism of Action

The mechanism of Biconcor involves the complementary action of its two components on cardiovascular regulatory systems: cardiac function and fluid volume.

Dual Modulation of Cardiac Output and Sympathetic Tone

The Bisoprolol component functions as a competitive antagonist highly selective for the beta1-adrenergic receptor (beta1-AR) in the heart. This action interrupts the excitatory signaling of catecholamines on cardiac muscle. By blocking receptor binding, Bisoprolol initiates a signaling cascade that results in a lower heart rate (mathbf negative chronotropy) and reduced force of contraction, which collectively leads to a decrease in the Cardiac Output (mathrmCO).

Regulation of Renal Volume and Compensatory Signaling

The Hydrochlorothiazide ( HCTZ) component acts as an inhibitor of the mathrmNa^+/mathrmCl^- cotransporter (mathrmNCC) in the renal distal convoluted tubule. This mechanism reduces the reabsorption of sodium and water, resulting in increased urinary excretion and a subsequent reduction in plasma volume. Simultaneously, Bisoprolol blocks beta1-ARs on juxtaglomerular cells, which suppresses Renin release and modulates the body's compensatory tendency to activate the Renin-Angiotensin System (RAS) in response to volume changes. This coordinated dual action facilitates sustained pressure regulation.

Dosage and Administration Information

Instruction Map: How to use Biconcor — Administration Guidelines

Biconcor is an oral medication supplied as a film-coated tablet for once-daily administration. Standard usage instructions outline the procedure for initiating, maintaining, and discontinuing the medicine.


Administration Scope

Feature Instruction
Route of administration Oral route only.
Dosing schedule Initial Dose: 2.5 mg/6.25 mg (Bisoprolol/HCTZ) orally once daily. Titration: Dose adjustments are made in intervals of approximately 14 days to assess response. Maximum Daily Dose: 20 mg/12.5 mg.
Timing in relation to meals May be administered with or without food.
Preparation requirements Tablets must be swallowed whole with some liquid and should not be crushed or chewed.
Age-group administration rules Use is not established for the pediatric population (under 18 years). Caution is advised during titration in patients with renal or hepatic impairment.
Missed-dose rules If a dose is missed, the standard protocol is to skip the missed dose if it is near the time for the next scheduled administration; doubling the dose is not permitted.
Special procedural conditions The tablet should typically be taken in the morning. Discontinuation of therapy requires a gradual dose taper over approximately two weeks; abrupt cessation should be avoided.

Instruction Classifications (High-level)

Classification Detail
Administration method type Oral
Frequency pattern Once daily (qDay)
Use-context constraints Requires adherence to a structured long-term titration and tapering protocol.

Resulting Procedural Structure

Standard step sequence:

  • Initiation: Begin with the lowest strength taken once daily in the morning, with or without food.
  • Adjustment: Increase the dose only after specified intervals (approx. 14 days) based on the titration protocol, if necessary.
  • Cessation: If treatment is to be stopped, the medicine must be tapered gradually over a period of approximately two weeks.

Connection to the overall use protocol (2–4 sentences):

This procedural structure outlines the process for how the medicine is physically administered, maintained, and discontinued. The instructions specify a single oral dose per day, the dosing range and structured titration schedule, and the gradual tapering protocol for withdrawal. These rules govern the procedural use of the medication.

Recent Clinical Evidence

Research evidence / Overview of studies for Biconcor

Evidence for Use in Managing High Blood Pressure (Essential Hypertension)

The research base was studied for its application in adult patients who have high blood pressure, also known as essential hypertension. The research base includes randomized controlled trials (RCTs) and larger analyses that pool data from multiple studies, known as meta-analyses. Researchers primarily examined measurable outcomes related to the change in blood pressure, specifically tracking Sitting Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP). The studies also monitored the proportion of participants achieving specific blood pressure target measurements during the observation period. Findings describe patterns observed in the studies where measurable changes in these blood pressure parameters were reported across the observed adult populations.

Comparing Biconcor to Placebo and Monotherapies

Multiple short-term clinical trials explored how this fixed-dose combination compared to an inactive substance (placebo) and to its individual active components when administered alone. These comparisons are necessary to understand the measured changes in outcomes reported during the combination therapy studies. Data show patterns related to measured blood pressure changes that were reported as distinct when the combination was compared to the placebo groups in these short-term studies. Certain trials reported that measured changes in blood pressure were distinct when the fixed-dose combination was compared to using one of the two components alone.

Long-Term Studies and Durability of Effect

The essential research base was primarily studied for its short-term influence on measurable blood pressure control, often with trial durations lasting only 8 to 12 weeks. While extensive research exists on the process of lowering high blood pressure and for the overall drug classes involved, research specifically dedicated to tracking major health events for many years was observed in a limited number of dedicated fixed-dose combination trials. Consequently, there is limited information for long-term outcomes that track major cardiovascular events over an extended period. The durability of the measured blood pressure control beyond the initial short-term trial duration is not fully established through long-term head-to-head research on this specific product.

Evidence in Specific Patient Groups

Research examined the combination in certain specific patient groups to see if the measured outcomes differed. This included studies focused on some older adults who had a form of high blood pressure known as isolated systolic hypertension. These specific studies tracked the change in blood pressure and other outcomes related to systemic or functional imbalance in these defined subgroups over several weeks. However, data for certain groups remain insufficient. For instance, the combination has not been widely studied or systematically documented in trials involving children or pregnant individuals. Therefore, research does not determine whether an individual in these or other specific non-standardized subgroups will respond similarly to the patterns observed in the main adult patient trials.

Study Quality and Key Research Limitations

The majority of the core research supporting the combination's measured effects on blood pressure stems from short-term trials. This focus means that follow-up durations were limited for many of the key efficacy studies. The evidence primarily focuses on blood pressure, which is a surrogate measure—a measure that tracks short-term physiological changes rather than major health events. This means that available data for long-term health outcomes is often heterogeneous or derived from trials focusing on the component classes rather than the fixed combination. Furthermore, comparative evidence is lacking for many direct comparisons against all alternative dual-therapy combinations. Ultimately, the results apply only to the populations studied and the specific circumstances under which the research was conducted.

Key Studies & References

  1. Public Assessment Report - Bisoprololfumaraat/Hydrochloorthiazide Mylan 5 mg/12.5 mg and 10 mg/25 mg (European Decentralised Procedure)
  2. Comparison of bisoprolol and low dose hydrochlorothiazide combination with losartan, alone or in combination with hydrochlorothiazide, in the treatment of hypertension: A double blind, randomized, placebo controlled trial

Frequently Asked Questions (FAQ)

Common questions about Biconcor (FAQ)


Q: Is Biconcor used for anxiety or just blood pressure?

According to regulatory documents, the official labeled indication for the Biconcor fixed-dose combination is the management of essential hypertension (high blood pressure) in adults. The official labeling does not include anxiety as an authorized use for this product.


Q: What conditions, besides high blood pressure, is Biconcor used to manage?

Official regulatory documents list the treatment of essential hypertension as the authorized indication. This means the combination product is specifically approved for high blood pressure management and is not officially indicated for other conditions.


Q: How long can a person stay on Biconcor?

Regulatory guidelines define the use of the medicine as requiring a structured long-term titration and tapering protocol for maintenance. While clinical studies primarily focus on short-term blood pressure outcomes, the overall management of essential hypertension is a form of management that is generally continued long-term, when medically appropriate.


Q: Can Biconcor cause swelling in the ankles or feet?

Swelling in the ankles, feet, or lower legs, known medically as peripheral edema, has been reported as a possible side effect in regulatory documents. This type of swelling is a commonly reported systemic effect.


Q: Is it normal to feel a bit dizzy when first starting Biconcor?

Dizziness is listed as a common side effect in the official product information. Many common side effects are often mild and may occur as the body adjusts to the medication, particularly when beginning treatment.


Q: Does Biconcor interact with over-the-counter pain relievers like ibuprofen?

Regulatory information indicates that Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), such as ibuprofen, may interact with Biconcor. The combination may reduce the diuretic and blood pressure-lowering effect of the Biconcor components.


Q: Can I drink alcohol while taking Biconcor?

The official label notes that the consumption of alcohol may enhance the hypotensive effect of Biconcor. This means alcohol could increase the risk of low blood pressure, potentially leading to increased dizziness.


Q: Is Biconcor appropriate for older adults (seniors)?

Biconcor is approved for use in adults, and clinical studies included some older adult patients. Caution is noted when administering to specific adult populations, and close monitoring is part of the required titration process.


Q: Can Biconcor cause cold hands and feet?

A feeling of coldness or numbness in extremities is listed as a common side effect of the Bisoprolol component. This is a possible effect noted in the official safety profile.


Q: Does Biconcor cause changes in mood or depression?

Depression is listed as an uncommon adverse reaction in official regulatory documentation. Sleep disorders are also noted as a potential uncommon effect of the medication.


Q: Can Biconcor be used for people who have had a heart attack?

The regulatory label lists the treatment of essential hypertension (high blood pressure) as the sole authorized indication for this specific fixed-dose combination product. Use for conditions that follow a heart attack is not listed in the official indications for Biconcor.


Q: Why is it important not to suddenly stop taking Biconcor?

Official safety warnings state that abrupt discontinuation of Biconcor, especially in individuals with coronary artery disease, is associated with risks. These risks include exacerbated angina, myocardial infarction (heart attack), or severe ventricular arrhythmia (irregular heart rhythm). The medicine requires a gradual dose taper.


Q: Does Biconcor cause fatigue or tiredness?

Fatigue and asthenia (weakness) are both listed as common side effects of the medication in the official product information. This means feeling tired or weak is a frequently reported experience during therapy.


Q: How quickly does Biconcor start to affect blood pressure?

Noticeable changes in blood pressure may be observed within the first week of using Biconcor. However, the full intended blood pressure-lowering effect may take up to two to three weeks of regular daily use to be reached, according to regulatory study findings.


Q: Do I have to take Biconcor at the exact same time every day?

Official guidance states the medicine is required to be taken once daily, and the tablet should typically be taken in the morning. Consistency in the daily timing is considered useful to help maintain steady levels of the drug in the body.


Q: Are there common side effects of Biconcor that usually go away?

The common adverse reactions reported are described in official documents as generally mild and transient. This indicates that many common side effects may resolve or lessen as the body adjusts to the medication during the initial weeks of treatment.


Q: Does Biconcor interact with grapefruit or grapefruit juice?

Grapefruit and grapefruit juice are not listed as drug-food interactions for this combination product (Bisoprolol/HCTZ) in official regulatory documentation.


Q: Can Biconcor affect sleep or cause insomnia?

Sleep disorders and specific difficulty falling or staying asleep (insomnia) are reported in the official list of side effects for Biconcor.


Q: What kind of monitoring or tests are needed while taking Biconcor?

The use of the diuretic component requires monitoring of certain body metrics. Checks for serum electrolytes (such as potassium) and creatinine/renal function are specified in regulatory information.


Q: Can Biconcor affect blood sugar levels?

Official warnings note that the medication may increase blood sugar (glucose) levels. Furthermore, it may mask some common signs of low blood sugar (hypoglycemia), such as a fast heartbeat.


Q: Does Biconcor have any known food restrictions?

The Biconcor tablet may be administered with or without food, as stated in the administration guidelines. There are no specific food restrictions, though consumption of alcohol is noted to potentially enhance the blood pressure-lowering effect.


Q: What research is available about the long-term use of Biconcor?

The core evidence base consists primarily of short-term randomized controlled trials focused on immediate blood pressure reduction. Regulatory documents note that there is limited information available from long-term trials tracking major cardiovascular events specifically for the fixed-dose combination.


Q: Why might a doctor switch me from two separate pills to Biconcor?

The fixed-dose combination product is indicated as a substitute therapy for adult patients. Official guidance states this combination is appropriate for patients whose blood pressure is already adequately controlled on the individual components administered separately.


Q: Can Biconcor be used to treat heart rhythm problems?

The official regulatory label lists the treatment of essential hypertension (high blood pressure) as the sole authorized indication for this fixed-dose combination product. It is not listed as an anti-arrhythmic medication.


Q: Do people experience a rapid heart rate (tachycardia) when stopping Biconcor?

Abrupt withdrawal of the medication is associated with the risk of ventricular arrhythmia (irregular heart rhythm) and exacerbated angina. These are changes in heart function that highlight the need for a gradual dose taper when discontinuing therapy.


Q: Are there any known interactions between Biconcor and vitamins or supplements?

The official label notes that certain resins (used to treat high cholesterol) can interfere with the absorption of the diuretic component. Caution is generally advised with any supplements that may affect blood pressure, heart rate, or electrolyte levels.


Q: How does Biconcor affect the kidneys and liver?

The use of Biconcor is contraindicated in cases of severe impairment to the kidney or liver function. For patients with less severe impairment, caution is required, as the drug's effects may be increased or it may potentially precipitate certain complications.


Q: Is the low-dose Biconcor intended for long-term maintenance?

The lowest available strength is used to initiate therapy for essential hypertension. The medication itself is designed for long-term management, with the dose adjusted (titrated) based on individual response.


Q: Can Biconcor cause a dry cough?

Cough is listed as a reported side effect of the combination product in the official safety information.


Q: Is it okay to drive or operate machinery while on Biconcor?

Official guidance specifies that the medication can cause dizziness or tiredness. It is noted that caution should be exercised regarding operating machinery or driving until a patient is aware of how the medicine affects them.


Q: Are there official statistics on how often people experience a specific side effect from Biconcor?

Adverse reactions are classified in official documents by frequency categories such as Very Common, Common, or Uncommon. These categories are derived from the calculated percentages of reported events from regulatory clinical trials.


Q: What if I take too much Biconcor by accident?

Symptoms of overdose noted in regulatory documents may include a very slow heart rate (bradycardia), very low blood pressure (hypotension), heart failure, or low blood sugar (hypoglycemia).


Q: Is Biconcor a medication for treating chest pain (angina)?

The official regulatory label lists the treatment of essential hypertension (high blood pressure) as the sole authorized indication for this fixed-dose combination product.


Q: Can Biconcor cause changes in libido or sexual function?

Erectile dysfunction (impotence) and generalized changes in sex drive or performance are reported as documented side effects of the medication.

How should Biconcor be stored and disposed of?

Storage and Disposal of Biconcor

Biconcor (bisoprolol fumarate/hydrochlorothiazide) must be stored under specific conditions to maintain its effectiveness, as documented in official regulatory labeling.


Storage Requirements

Biconcor should be stored at Controlled Room Temperature, between 20^circC and 25^circC (68^circF and 77^circF). It must be kept in the original container, which should be tightly closed, to protect the tablets from moisture. As with all medicines, Biconcor must be stored out of the sight and reach of children.


Disposal Instructions

Unused or expired Biconcor should not be disposed of via household waste or wastewater. The proper method for discarding the medicine is to follow local requirements for pharmaceutical waste, such as community drug take-back programs.

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

Available in countries:

Equivalent of Biconcor found in:

A-Z Index: