Monocor

Quick links to important sections

Monocor

Treatment option:

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 Monocor

Quick Facts

Property Description
Active ingredient Bisoprolol Fumarate
Form Film-coated tablets (Oral)
Pharmacological class Selective beta1-adrenoceptor antagonist
General purpose Cardiovascular system stabilization
Origin Synthetic compound

Monocor is a prescription-only medicine whose active ingredient is Bisoprolol Fumarate, a synthetic compound used in the management of the cardiovascular system. It is manufactured as an oral formulation in the form of film-coated tablets and is classified within the pharmacological class of beta-adrenergic blocking agents (beta-blockers). Bisoprolol Fumarate is also sold under other trade names, such as Concor.


What Type of Cardiovascular Medicine is Monocor?

Monocor is categorized as a selective beta1-adrenoceptor antagonist, a type of beta-blocker designed to primarily act on receptors within the heart muscle. This compound is chemically identified as the fumarate salt of bisoprolol, from which the core identity of Bisoprolol Fumarate is derived. This cardioselective action differentiates it from older or non-selective agents that may affect a wider range of the body's systems, focusing its therapeutic effect specifically where it is most needed to stabilize heart function. This focused action is clinically recognized for its suitability in patient populations requiring cardiovascular support.

Composition, Form, and General Purpose

The medication is a single-ingredient product where Bisoprolol Fumarate is combined with solid pharmaceutical excipients to create its tablet form, which is intended for adult patients. The general purpose of this medicine is to promote the overall stability of the cardiovascular system by managing the heart's workload. As an antihypertensive agent, its fundamental role is to ease strain on the heart muscle and support circulatory function. The use of beta-blockers in supporting cardiac function is well-recognized for managing the cardiovascular system.


How Monocor Stabilizes the Heart

Monocor works by blocking specific signals from the body's sympathetic nervous system, thereby dampening over-stimulation of the heart muscle. This fundamental action achieves two key physiological effects: it initiates negative chronotropy (reducing the heart rate) and negative inotropy (lessening the force of contraction). By achieving this stability, the heart's oxygen demand is reduced, which ultimately helps to maintain a more consistent and efficient rhythm and pressure within the circulatory system.

What side effects are possible with Monocor?

Official Safety Profile of Monocor (Bisoprolol Fumarate)

The following safety information is derived from authoritative government regulatory documents, including approved prescribing information and monographs.

Frequency-Classified Adverse Reactions

Frequency Examples of Adverse Reactions (Not a complete list)
Very Common (1/10) Bradycardia (slow heart rate).
Common (1/100 to < 1/10) Fatigue, dizziness, headache, cold or numb feeling in extremities, gastrointestinal complaints (nausea, vomiting, diarrhea, constipation), worsening of pre-existing heart failure.
Uncommon (1/1,000 to < 1/100) Disturbances of AV conduction, bronchospasm, muscle weakness, depression, orthostatic hypotension.
Rare (1/10,000 to < 1/1,000) Syncope (fainting), nightmares, hallucinations, hepatitis, hypersensitivity reactions (e.g., rash), dry eyes, hearing impairment.
Very Rare (< 1/10,000) Conjunctivitis, alopecia, provocation or worsening of psoriasis.

Safety-Related Restrictions and Warnings

Contraindications (Must Not Be Used): Monocor is strictly contraindicated in specific conditions, including acute heart failure or heart failure requiring IV inotropes, cardiogenic shock, certain degrees of AV block (without a pacemaker), severe bronchial asthma or COPD, symptomatic bradycardia or hypotension, and severe peripheral arterial occlusive disease.

Important Precautions:

  • Withdrawal: Treatment must not be stopped abruptly, especially in patients with ischemic heart disease, as this can lead to acute exacerbation of the condition (rebound phenomenon). The dose must be reduced gradually.
  • Population-Specific Risks: Caution is required in patients with diabetes, as the medicine may mask symptoms of hypoglycemia. Caution is also necessary in patients with a history of psoriasis, as the drug can provoke or worsen the condition.

Overdose and Emergency Response

Overdose and When to Seek Help: Official Regulatory Guidance

This section is based strictly on the official overdose information provided in government regulatory documents for Bisoprolol Fumarate (Monocor).

Documented Overdose Manifestations

An overdose may lead to an exaggeration of Monocor's expected effects, primarily affecting the heart. Official sources document the following clinical signs:

  • Cardiovascular: Abnormally slow heart rate (Bradycardia), severely low blood pressure (Hypotension), and disturbances in the heart's electrical signals (AV-conduction disturbances).
  • Respiratory: Constriction of the airways leading to difficulty breathing (Bronchospasm).
  • Metabolic: Abnormally low blood sugar (Hypoglycaemia).

Severe Outcomes and Required Actions

Suspected overdose necessitates immediate action due to the potential for life-threatening complications, such as Overt Cardiac Failure or profound Hypotension.

Action Required Management Focus
Seek Immediate Medical Attention Required for all suspected overdoses. Call emergency services.
Discontinue Use Bisoprolol Fumarate therapy must be stopped immediately.
Supportive Treatment Treatment is symptomatic, involving specific interventions like intravenous Atropine for Bradycardia, vasopressors for Hypotension, and bronchodilators for Bronchospasm.
Antidote Status No single, specific antidote is listed; however, Glucagon is cited as a potentially beneficial intervention for severe cardiac effects.

Hospital monitoring is required for close observation of vital signs. Regulatory information notes that the drug is not readily dialyzable.

Therapeutic Uses of Monocor

Monocor (Bisoprolol Fumarate) is commonly used in the long-term management of chronic cardiovascular conditions, supporting the management of cardiac function and systemic pressure to support therapeutic benefits. The medicine is commonly used in the management of high blood pressure (hypertension), chronic heart failure, and angina.


Key Therapeutic Domains

This medicine is applied in the long-term control of elevated systemic blood pressure, which generally assists in contexts involving systemic or localized discomfort. It is also commonly used for managing chronic stable angina, which manifests as recurrent chest discomfort. For patients with stable chronic heart failure, it provides supportive therapy and is used for managing rate control in certain cardiac arrhythmias.

“Therapy is relevant in contexts involving heightened systemic burden and assists with maintaining functional stability.”

The therapeutic use is relevant in conditions marked by increased physiological stress, and may be part of symptomatic management in situations where patients experience high blood pressure. For patients dealing with chest discomfort, the therapeutic benefit may assist with the frequency and intensity of these episodes, which contributes to a more consistent daily functional capacity.


Quick Fact: Relief for Cardiac Strain Monocor generally assists with symptoms related to systemic imbalance and heightened physiological activity to support the heart during symptomatic periods, helping to ease the overall symptom load.

Eligibility and Restrictions for Use

Monocor (bisoprolol) is a beta-blocker primarily used by adults for managing high blood pressure (hypertension) and chronic stable heart failure. Its use is generally considered safe and effective for most adult patients in these populations.

However, Monocor is not suitable for everyone. It is contraindicated (should not be used) in patients with certain severe pre-existing heart conditions, as it could worsen them. These conditions include:

  • Cardiogenic shock (a life-threatening condition where the heart suddenly can't pump enough blood).
  • Overt heart failure that is severe or rapidly worsening.
  • Second or third-degree atrioventricular (AV) block (a serious heart rhythm disorder) without a pacemaker.
  • Marked sinus bradycardia (abnormally slow resting heart rate).

Monocor should also be used with extreme caution or is typically avoided in patients with:

  • Severe bronchial asthma or other serious chronic obstructive pulmonary diseases (COPD).
  • Severe peripheral arterial disease (e.g., Raynaud's phenomenon).
  • Metabolic acidosis (excess acid in the body fluids).
  • A known allergy or hypersensitivity to bisoprolol or any related component.

Its use in children and adolescents is generally not recommended as safety and effectiveness have not been established in these age groups. Patients who are pregnant or breastfeeding should consult their healthcare provider, who will weigh the potential benefits against the risks.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents detail specific drug-drug interactions that must be considered when using Monocor (Bisoprolol).

Combinations Generally Not Recommended

Co-administration with calcium antagonists of the Verapamil or Diltiazem type is generally not recommended due to the potential for excessive reductions in blood pressure, heart rate, or heart contractility. The combination with Class I antiarrhythmic medicines (e.g., Disopyramide) is also discouraged because of the high risk of severe cardiac effects. Additionally, combining Monocor with centrally acting antihypertensive drugs (e.g., Clonidine, Methyldopa) is generally not recommended, as it may worsen heart failure.

Interactions Requiring Caution and Monitoring

  • Other Beta-Blocking Agents: Co-administration with other beta-blocking agents, including topical ones like eye drops for glaucoma, is contraindicated.
  • Class III Antiarrhythmic Medicines: Use with Amiodarone requires caution due to additive effects on heart conduction.
  • Antidiabetic Agents: Monocor may mask some symptoms of low blood sugar, such as a rapid heartbeat, in patients taking insulin or oral hypoglycemic agents.
  • Rifampin: This medicine increases the metabolism of Bisoprolol, potentially reducing Monocor's effects and requiring dose review.
  • NSAIDs: Non-steroidal anti-inflammatory drugs (e.g., Ibuprofen, Indomethacin) may reduce Monocor's blood-pressure-lowering effect.

Special procedural requirements exist for discontinuing certain combinations, such as Monocor needing to be stopped for several days before withdrawing Clonidine.

Mechanism of Action

How Monocor Works

Selective Blockade of Cardiac beta1-Adrenoceptors

Monocor (Bisoprolol Fumarate) functions as a selective antagonist by binding to the beta1-adrenoceptor protein, which is found predominantly in the heart muscle. By competitively occupying this receptor, the drug prevents the body's natural stimulatory hormones (catecholamines) from activating the intracellular signaling cascade. This interruption of the cascade translates directly into negative chronotropy (slowing the heart rate) and negative inotropy (reducing the force of contraction), thereby decreasing the Myocardial Oxygen Demand ( MVO2).

Modulation of the Renal Hormonal Pathway

The beta1-adrenoceptors are also located on specialized cells in the kidney's juxtaglomerular apparatus. Blocking these renal receptors leads to the inhibition of renin release, which is the first step in activating the Renin-Angiotensin-Aldosterone System (RAAS). This modulation reduces the generation of potent vasoconstrictors and contributes to the regulation of pressure and vascular tone within the circulatory system.

Dosage and Administration Information

Monocor, which contains the active ingredient bisoprolol, is typically prescribed for the treatment of high blood pressure and angina pectoris (chest pain). In some instances, it is also used for chronic heart failure management.

General Administration

Bisoprolol is administered orally, usually once a day, and should be taken at the same time each day to help maintain consistent levels in the body. The tablets can be taken either with or without food. It is important to swallow the tablets whole with a drink of water; do not crush or chew them unless they are a scored tablet and your healthcare provider has specifically advised you to break it to assist with swallowing.

Dosage and Scheduling

Dosage is highly individualized based on the condition being treated and the patient's response to therapy. The initial dose for heart failure is generally low, increasing gradually over several weeks or months as directed by a healthcare professional.

Indication Typical Dosing Regimen
High Blood Pressure Once daily (starting at 5 mg, titrated as needed)
Chronic Stable Angina Once daily (starting at 5 mg, titrated as needed)
Chronic Heart Failure Once daily (starting at a low dose, gradually increased)

Important Considerations

Do not stop taking Monocor suddenly without consulting your doctor, as this may worsen your condition or lead to serious heart problems such as a heart attack. Continue to take this medication as prescribed even if you feel well, as high blood pressure often has no symptoms. If you miss a dose, take it as soon as you remember that day. If you do not remember until the next day, skip the missed dose and resume your regular schedule. Never take two doses to compensate for a missed one.

Recent Clinical Evidence

Research evidence / Overview of studies for Monocor (bisoprolol)


For High Blood Pressure (Hypertension)

Research into Monocor for high blood pressure primarily involves clinical trials, where patients are randomly assigned to take Monocor, another medication, or an inactive pill (placebo). These studies are designed to explore the association between the medication and health measurements.

Studies noted changes in both systolic (top number) and diastolic (bottom number) blood pressure values in people with hypertension. Some findings indicate studies did not report a clear difference in measured blood pressure changes when compared to certain other medications. For patients with a high heart rate alongside their high blood pressure, the medication was observed to slow the heart rate.

What remains uncertain: While Monocor has been widely studied, there are ongoing discussions among researchers about whether one class of blood pressure drug is universally better than others for preventing long-term cardiovascular problems in all types of patients.


For Angina Pectoris (Chest Pain)

Studies exploring Monocor's use for angina typically involve randomized trials to evaluate its association with both the frequency of angina reports and measures of physical activity.

Research indicates that trials measured differences in the number of angina attacks and the ability to tolerate exercise without chest pain in people taking Monocor. Some comparisons suggest no notable difference was reported when Monocor was compared to certain other anti-angina treatments.


For Chronic Heart Failure

For heart failure, the studies of Monocor are large-scale, long-term, randomized, placebo-controlled trials comparing Monocor against an inactive pill in patients receiving standard heart failure treatments.

In Patients with Reduced Pumping Function (Reduced Ejection Fraction)

The key studies looked at whether adding Monocor to existing therapy was studied for its association with outcomes such as long-term survival and hospitalization rates for patients with chronic heart failure where the heart's main pumping chamber is not working as efficiently as it should. This finding was reported across various dose levels that patients were able to tolerate.

Special Populations and Limitations

Some research has looked at the use of Monocor in older adults. Study evidence is limited or unavailable regarding the medication's use in children. Research evidence is also limited regarding its use in heart failure where the heart’s pumping function is preserved (Heart Failure with Preserved Ejection Fraction).

Key Studies & References

  1. The Cardiac Insufficiency Bisoprolol Study II (CIBIS-II): a randomised trial

Frequently Asked Questions (FAQ)

Common questions about Monocor (FAQ)


Q: How quickly does Monocor start to work after taking a dose?

Official product information indicates that the drug's effect on reducing heart rate often reaches its peak within 1 to 4 hours after a dose is taken. However, achieving the full benefit of the medication for blood pressure management may take several weeks of consistent use.


Q: Is it normal to feel tired when starting Monocor?

Yes, regulatory documents list fatigue and excessive tiredness as common side effects of Monocor. These effects may be most noticeable when first starting the medication or during dose adjustments.


Q: Can Monocor cause sleep problems or insomnia?

Official safety data reports sleep disorders as an uncommon side effect. Additionally, nightmares are listed as a rare adverse reaction. If persistent trouble sleeping is experienced, it is appropriate to discuss this with a healthcare professional.


Q: What happens if I miss a dose of Monocor?

If the missed dose is remembered later that same day, the general guidance is to take it. However, if it is not remembered until the next day, the missed dose should be skipped entirely, and the regular schedule resumed. Official guidance emphasizes that you should never take two doses to make up for a missed one.


Q: Are there any foods I should avoid when taking Monocor?

Regulatory documents state that Monocor tablets can be taken with or without food. There are no specific foods or beverages listed in the official product information that must be avoided entirely when using this medication.


Q: Is Monocor safe for older people?

Official prescribing information indicates that no dosage adjustment is typically required for elderly patients compared to other adults. However, the initiation of treatment in older patients may involve starting at the lowest available dose.


Q: Can Monocor affect my blood sugar levels?

Yes. Official warnings indicate that Monocor may mask some symptoms of low blood sugar (hypoglycemia), such as a rapid heart beat, particularly in patients who have diabetes. Patients who have diabetes should discuss blood glucose monitoring with their prescribing healthcare professional.


Q: Is it true that Monocor can cause cold hands and feet?

Yes, official safety information lists a feeling of coldness or numbness in the extremities (such as hands and feet) as a common side effect of Monocor. This relates to how the medication affects circulation.


Q: Does Monocor affect men's health or libido?

Official regulatory documents list erectile dysfunction as a rare adverse reaction associated with Monocor use. Concerns related to men's health or sexual function should be discussed with a healthcare professional.


Q: Does Monocor have a generic version available?

Yes, the active ingredient in Monocor, bisoprolol fumarate, is available under various generic names and other trade names approved by regulatory bodies worldwide.


Q: Can Monocor cause changes in mood or depression?

Official safety data lists depression as an uncommon side effect. Additionally, hallucinations are noted as a rare adverse reaction. If significant changes in mood are observed, it is recommended to consult a healthcare provider.


Q: What are the most common side effects of Monocor?

The most frequently reported side effect in official documents is bradycardia (a very common, or frequent, slowing of the heart rate). Other common effects include fatigue, dizziness, headache, gastrointestinal complaints (like nausea or constipation), and cold or numb extremities.


Q: Can younger adults take Monocor?

Monocor is indicated for use in adults for conditions like hypertension and angina. Official information states that its use in children and adolescents is not recommended as safety and efficacy have not been formally established in these age groups.


Q: What is the long-term safety profile of Monocor?

Treatment for conditions like stable chronic heart failure with Monocor is generally a long-term commitment. The medication label advises that any signs of serious adverse effects, such as worsening heart failure or severe allergic reactions, should be reported to a healthcare professional.


Q: Why do some people need to take Monocor twice a day?

While the standard dose is once daily, official guidance for individuals with severe renal impairment (a serious kidney condition) allows the maximum recommended dose to be divided and taken in halves (e.g., twice daily) to account for the slower clearance of the drug from the body.


Q: Does Monocor treat the underlying cause of high blood pressure?

The exact way Monocor reduces blood pressure is not completely established. Official information states that it works by decreasing the force of the heart’s contraction and inhibiting the release of renin, a hormone that influences blood pressure. It is considered a management strategy for symptoms, not a cure for the root cause of the condition.


Q: Is Monocor used for heart rhythm problems?

Monocor is primarily indicated for high blood pressure, angina, and chronic heart failure. As a beta-blocker, it does affect the heart's electrical system, such as slowing the heart rate, but its approved uses are limited to its primary indications.


Q: What are the signs that Monocor is working for me?

Since the goal of Monocor is to lower blood pressure and slow the heart rate, the most objective signs are confirmed decreases in heart rate and blood pressure as determined by monitoring. The intended therapeutic effects include a reduction in the frequency or severity of angina (chest pain), which may also be a noticeable outcome.


Q: Is a slight dizziness normal a few hours after taking Monocor?

Dizziness is listed as a common side effect of Monocor. Since the maximum effect of the drug on the body is typically reached within the first few hours after administration, this is the time when side effects like dizziness may be most pronounced.


Q: What kind of monitoring is needed while taking Monocor?

Close monitoring of vital signs such as heart rate and blood pressure is recommended, especially when the dose is first established. Regular check-ups are important, and monitoring for symptoms of worsening heart failure is also necessary.


Q: What are the less common, but serious side effects of Monocor I should know about?

Less common, but serious, side effects listed in official documents include worsening of heart failure (e.g., significant weight gain or swelling), bronchospasm (difficulty breathing), and severe allergic reactions. If these or other symptoms of concern are experienced, immediate medical attention is necessary.


Q: What is the maximum dose of Monocor typically prescribed?

For the treatment of hypertension and chronic stable angina pectoris, the maximum recommended dose is typically 20 mg per day. For chronic heart failure, the maximum recommended dose is usually 10 mg once daily.


Q: Are there long-term studies on the effectiveness of Monocor?

Yes, official information references large-scale, long-term studies that have been conducted. These studies specifically support the benefit of using Monocor (bisoprolol) for managing chronic heart failure, showing positive associations with outcomes like survival and hospitalization rates.


Q: Is it normal for my pulse to feel slower after starting Monocor?

Yes, this is normal. Monocor is designed to have a main action of slowing the heart rate (negative chronotropy). A slow heart rate (bradycardia) is listed in regulatory documents as a very common expected effect of the medication.


Q: Does Monocor cause weight gain?

Official documents list unusual or unexpected weight gain as an uncommon or serious side effect. If this is observed, it should be discussed with a healthcare provider.


Q: Are there any specific blood tests required while taking Monocor?

While on Monocor, blood tests for liver enzymes and triglycerides may show rare increases. For patients with diabetes, blood glucose levels require careful monitoring.

How should Monocor be stored and disposed of?

How to Store and Dispose of Monocor?

Monocor (bisoprolol fumarate) tablets must be stored according to specific regulatory requirements to maintain product stability and safety.

Storage Requirements

Condition Regulatory Requirement
Temperature Store below 25 C or 30 C, depending on the labeled formulation. Keep from freezing.
Protection Store in the original container to protect the medicine from light and moisture.
Stability If packaged in a bottle, the contents must be used within 6 months after the first opening.
Child Safety Keep out of the sight and reach of children.

Disposal Instructions

Official instructions mandate that any unused or expired Monocor should not be thrown away via wastewater or household trash. Disposal must be carried out in accordance with local requirements; patients are advised to consult a healthcare professional for guidance on proper disposal procedures.

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

Equivalent of Monocor found in:

A-Z Index: