Actim

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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 Actim

Property Description
Active Ingredient Bisoprolol Fumarate
Form Film-coated Tablet
Pharmacological Class Cardioselective Beta-Blocker (Beta-Adrenergic Blocking Agent)
General Purpose Managing conditions that stress the cardiovascular system
Origin Synthetic

What is Actim and its Active Ingredient?

Actim is a prescription-only (Rx) pharmaceutical preparation whose sole active ingredient is the potent synthetic compound Bisoprolol Fumarate. It is formulated for oral administration as a single-ingredient product, typically supplied in the form of a film-coated tablet. The chemical structure of the drug is provided as a racemic mixture, though the S(-) enantiomer is responsible for the majority of the therapeutic activity. This medicine is characterized by its long-acting profile, allowing it to maintain a consistent effect on the circulatory system.


What Type of Drug is Bisoprolol?

Bisoprolol Fumarate is scientifically classified as a Beta-Adrenergic Blocking Agent, commonly known as a Beta-Blocker. More precisely, it is a second-generation, cardioselective beta1-Selective Adrenoceptor Blocking Agent. This distinction is crucial, as its primary influence is targeted at the beta1 receptors found predominantly in the heart, mitigating the impact of stimulating stress hormones (catecholamines).

This selective mechanism reduces peripheral sympathetic activity, a key action in managing persistent strain on the heart muscle. The drug is utilized in the management of cardiovascular issues. Consequently, Actim functions as an Antihypertensive Agent by relieving the burden on the cardiovascular system and assisting the heart in working more calmly and efficiently.

What side effects are possible with Actim?

Possible Side Effects and Safety Information

The safety profile of Actim (Bisoprolol Fumarate) is documented by regulatory authorities and classified by the frequency and physiological system affected. Adverse events are grouped according to the standard regulatory framework (ICH/EMA), with most effects concentrated in cardiovascular, nervous system, and gastrointestinal categories.

Frequency Classification of Adverse Reactions

Side effects are categorized by their official regulatory incidence:

Frequency Category Examples of Documented Adverse Reactions
Common (1/100 to 1/10) Bradycardia (slow heart rate), dizziness, headache, fatigue, asthenia (weakness), nausea, vomiting, diarrhea, constipation, cold or numb extremities.
Uncommon (1/1,000 to 1/100) Sleep disturbances, depression, hypotension, muscle weakness, bronchospasm, and the worsening of pre-existing heart failure.
Rare (1/10,000 to 1/1,000) Syncope (fainting), hepatitis (inflammation of the liver) with elevated liver enzymes, hypersensitivity reactions (e.g., rash), reduced tear flow, and hearing impairment.
Very Rare (< 1/10,000) Alopecia (hair loss) and the aggravation of psoriasis.

Safety Patterns and Restrictions

Adverse effects such as fatigue, headache, and dizziness are commonly reported to be transient and are often noted to occur at the beginning of treatment. The official label includes high-level safety restrictions, specifically noting that the medicine is contraindicated (should not be used) in patients with acute heart failure, cardiogenic shock, severe bradycardia, or certain degrees of atrioventricular (AV) block. Specific safety notes also apply to special populations, including an increased risk of bronchospasm in patients with a history of asthma or COPD, and the need for adjustment in cases of severe renal or hepatic impairment.

Overdose and Emergency Response

Overdose Presentations and Severe Outcomes

Overdose with Bisoprolol Fumarate is characterized by an amplification of its intended effects, primarily impacting the heart and circulation. Documented manifestations include marked bradycardia (abnormally slow heart rate), severe symptomatic hypotension, and atrioventricular (AV) block (second or third degree). The regulatory profile also notes the potential for bronchospasm and systemic effects like hypoglycemia and metabolic acidosis. These effects can escalate to life-threatening complications, including acute cardiac insufficiency, cardiogenic shock, seizures, and coma.

Required Emergency Actions

The official regulatory guidance mandates that treatment with Actim must be discontinued immediately upon suspected overdose. Due to the risk of severe or life-threatening symptoms, immediate medical attention must be sought without delay for any signs of profound cardiovascular or respiratory compromise. Management is directed toward symptomatic and supportive treatment, as the compound is considered hardly dialysable. A specific population note is that the drug may mask the typical warning signs of hypoglycemia in diabetic patients, requiring heightened awareness of blood sugar levels.

Therapeutic Uses of Actim

Easing Acute Symptomatic Discomfort

Actim is generally used when symptoms intensify suddenly or cause heightened distress, offering short-term, supportive relief. As with other agents providing symptomatic management, its therapeutic area is relevant for easing general discomfort and acute symptoms. This medication may be part of symptomatic management for symptom clusters that may appear suddenly or intensify over time, which may include symptoms related to physical discomfort or noticeable physiological strain.


Supporting Fluctuating Symptom Patterns and Functional Strain

Actim is commonly applied across conditions characterized by episodic or fluctuating symptom patterns and is useful during phases marked by increased physiological tension. It is commonly used when short-term symptomatic assistance is needed for conditions presenting with disruptive symptom manifestations, and assists with maintaining functional stability when symptoms create a noticeable interference with daily stability. It contributes to improved comfort during periods of heightened symptoms and may help patients cope more steadily with symptom fluctuations.

Quick Fact: Relief for Symptoms that interfere with daily functioning

“It is commonly used to help with symptoms that create noticeable functional strain and provides supportive relief when symptoms interfere with routine activities.”

Eligibility and Restrictions for Use

Actim PROM and Actim Partus are in vitro diagnostic tests, not medications, and their official eligibility profiles are based on the intended user and the pregnant patient's specific clinical condition.

Eligibility Scope

Classification Actim PROM (Rupture of Membranes) Actim Partus (Risk of Preterm Delivery)
Allowed Patient Pregnant women suspected of ruptured fetal membranes (ROM) or premature rupture of membranes (PROM). Pregnant women experiencing signs suggestive of preterm labor.
Gestational Age Can be used at any gestational age (some clearances specify 29 weeks or 34 weeks). Indicated for use from 22 weeks of gestation onwards.
Membrane Status Used when ruptured membranes are suspected. Used when fetal membranes are intact (unbroken).

Eligibility Restrictions

Populations for whom use is not recommended: The general public cannot use this device as official labeling stipulates it is "For Healthcare Professional Use Only" in clinical laboratory or point-of-care settings.

Condition-specific restriction: A known interference risk exists with some lubricants; therefore, the test specimen should not contain significant amounts of personal or surgical lubricants. Use is restricted to pregnant women; the tests are not applicable for non-pregnant individuals.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information for Actim (Bisoprolol Fumarate) establishes specific restrictions and required co-administration constraints, primarily based on pharmacodynamic and pharmacokinetic effects. Co-administration with other beta-blocking agents is officially prohibited.

Pharmacodynamic and Pharmacokinetic Constraints

The following table summarizes key interactions classified by regulatory authorities:

Interacting Product Category Official Interaction Description
Calcium Antagonists (Verapamil/Diltiazem types) Generally not recommended due to official risk of negative influence on heart contractility and AV conduction.
Centrally Acting Antihypertensives (e.g., Clonidine) Generally not recommended as co-administration may worsen heart failure.
Class I Antiarrhythmics (e.g., Quinidine) Use with caution due to the risk of potentiating the effect on AV conduction time.
Rifampin Officially increases the metabolic clearance of Bisoprolol Fumarate, resulting in a shortened elimination half-life.

Administration Timing Rule

The label specifies a procedural constraint regarding the withdrawal of Clonidine. If Clonidine therapy is to be discontinued, Bisoprolol Fumarate must be discontinued for several days before the withdrawal of Clonidine. Additionally, studies have officially documented no clinically relevant interaction when Actim is co-administered with Cimetidine or Thiazide Diuretics.

Interaction considerations are also officially noted as being heightened for the elderly if significant renal or hepatic dysfunction is present.

Mechanism of Action

Targeted Blockade of Cardiac Sympathetic Drive

Actim's mechanism is fundamentally a competitive antagonism at the beta1-adrenoceptor, which are primarily located in the heart. This action directly prevents endogenous stress hormones, the catecholamines, from activating the receptor, thereby immediately inhibiting the signaling of the sympathetic nervous system at the cardiac muscle and conduction system.


Cascade Resulting in Reduced Cardiac Work

By blocking the beta1 receptor, the drug suppresses the internal cAMP/PKA signaling cascade within heart cells, which subsequently limits the influx of calcium ions (Ca^2+). This molecular event results in two physiological consequences: a reduction in heart rate (negative chronotropy) and a decrease in the force of contraction (negative inotropy), which combine to contribute to a reduction in the metabolic demand and mechanical work of the heart.


Indirect Neurohormonal Pathway Suppression

The mechanism extends beyond the heart to the kidney, where beta1 receptor blockade on the juxtaglomerular cells suppresses the release of renin. Since renin is the key initiating enzyme for the Renin-Angiotensin-Aldosterone System (RAAS), this action supports the down-regulation of this major neurohormonal pathway, which reinforces the physiological effect achieved by the core cardiac mechanism.

Dosage and Administration Information

Administration Guidelines

Actim, containing Bisoprolol Fumarate, is a prescription medication formulated for oral administration as a film-coated tablet. Dosing and administration protocols define its clinical use pattern.

Standard Use and Frequency

The medication is administered once daily (OD), typically taken in the morning to maintain consistent systemic levels throughout the day. Tablets must be swallowed whole with fluid and can be taken with or without food.

Dosing regimens differ based on the use scenario. For conditions such as hypertension or angina, the usual starting dose is 5 mg once daily. The typical maintenance dose ranges from 5 mg to 10 mg, with a maximum recommended dose of 20 mg per day.

Titration and Special Populations

In the management of Chronic Heart Failure (CHF), administration follows a distinct approach. Treatment is initiated at a lower starting dose of 1.25 mg once daily. This initial dose is then systematically increased, or titrated, by approximately doubling the amount every two weeks until the target maintenance dose, not exceeding 10 mg once daily, is achieved.

Usage guidelines apply for specific populations. For patients with severe renal impairment (creatinine clearance < 20 mL/min) or severe hepatic impairment, the maximum daily dose is capped at 10 mg. The tablets should not be crushed or chewed, though scored tablets may be broken to facilitate accurate low dosing during the titration phase.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Actim

This section describes the types of clinical studies that have examined Actim (Bisoprolol Fumarate) in its primary approved uses, focusing on what was studied and what limitations the research itself reports, without offering medical advice.


Evidence for Use in Chronic Heart Failure

Research for Actim in chronic heart failure was evaluated in patients with reduced heart pumping function (Reduced Ejection Fraction, HFrEF). Large-scale, multinational Randomized Controlled Trials (RCTs) have been the main form of evidence, comparing the use of Actim against a placebo in patients already receiving other standard therapies.

These studies monitored major outcomes related to systemic or functional imbalance, including the frequency of hospitalizations for worsening heart failure and all-cause mortality. Research explored changes in functional capacity, such as the classification of heart failure severity, and how the heart’s function was measured over time.

Studies report how outcomes evolved in the observed populations over follow-up periods that typically lasted 1 to 2 years. However, initial landmark trials generally excluded patients who were in an acute, unstable phase of heart failure, and data for certain groups remain limited regarding immediate use during severe episodes. Furthermore, large-scale RCT evidence is less focused on patients with Heart Failure with Preserved Ejection Fraction (HFpEF).


Evidence for Use in Hypertension (High Blood Pressure)

Actim was evaluated in a wide range of short-term and intermediate-term RCTs and observational studies focusing on the management of high blood pressure. These trials primarily examined outcomes related to physiological strain or stress, specifically measuring the reduction in systolic and diastolic blood pressure (BP) and the slowing of heart rate (HR).

Studies report how symptoms evolved in the observed populations and the rate at which patients achieved predetermined BP goals over observation periods, which typically range from 6 weeks to 12 months. Comparative evidence against other classes of BP-lowering drugs is available and studies examine the measured BP-lowering effects.


Key Research Gaps and Areas of Uncertainty

The body of research, while substantial, includes several recognized gaps and areas where certainty remains low.

  • The evidence is clearest for Chronic Heart Failure with Reduced Ejection Fraction (HFrEF); however, evidence is less focused on other types of heart failure, such as Heart Failure with Preserved Ejection Fraction (HFpEF).
  • Comparative evidence is lacking for Actim against all common first-line drugs in long-term outcomes for uncomplicated hypertension.
  • As with many drugs, the results apply only to the populations studied, and the individual response of any one patient research does not determine whether an individual will respond similarly.

Key Studies & References

  1. The Cardiac Insufficiency Bisoprolol Study II (CIBIS-II): a randomised trial
  2. Beta-blockers in patients without heart failure after myocardial infarction - Cochrane Review
  3. Beta-blockers in post-myocardial infarction with preserved ejection fraction: systematic review and meta-analysis
  4. Bisoprolol - StatPearls (Source for Hypertension, Angina, and general indications)
  5. Public Assessment Report Scientific discussion Bisoprolol Syri Pharma 0.5 mg/ml, oral solution (Regulatory overview)

Frequently Asked Questions (FAQ)

Common questions about Actim (FAQ)

Q: How long does it typically take before Actim starts working?

A: Official information indicates that the maximum effect on blood pressure is generally reached after approximately two weeks of consistent treatment. However, the drug begins to reduce heart rate and oxygen consumption within a few hours of the first dose, providing an immediate effect on the cardiovascular system.

Q: What does it feel like when Actim is 'kicking in'?

A: When starting treatment, some individuals may experience common side effects such as dizziness, headache, or fatigue. Regulatory documents note that these effects often occur early in therapy and can be transient.

Q: Is it safe to drink alcohol in moderation while taking Actim?

A: Regulatory labeling indicates that caution should be exercised regarding alcohol consumption while taking this medication. Official information notes that alcohol may increase the blood pressure-lowering effect, potentially raising the risk of side effects such as dizziness or fainting spells.

Q: Is Actim safe for older people (seniors) to take?

A: Clinical trials for Actim, specifically for chronic heart failure, have included patients who are 65 years of age and older. Official guidance states that treatment initiation for older adults requires regular monitoring by a healthcare provider.

Q: Do doctors usually prescribe Actim long-term or short-term?

A: Actim is typically prescribed for chronic, long-term conditions such as heart failure and high blood pressure. Clinical studies that support the drug's use often track patients over periods lasting one year or more, indicating a long-term treatment plan.

Q: Does Actim affect your sleep or cause insomnia?

A: Official safety information lists sleep disturbances and vivid dreams as uncommon side effects. Insomnia, which is difficulty falling or staying asleep, is also noted in some regulatory documents as a potential central nervous system adverse reaction.

Q: How often do people generally need check-ups when they are on Actim?

A: Regulatory guidelines emphasize the need for monitoring, particularly during the initial phase of treatment or when doses are adjusted. A healthcare provider typically establishes a schedule for routine follow-up appointments to monitor progress and ensure the medication is working effectively.

Q: Does Actim affect mood or cause emotional changes?

A: Official safety labeling notes that depression is an uncommon side effect. Other central nervous system effects, such as anxiety or difficulty with concentration, have also been reported in clinical experience.

Q: Does Actim interact with birth control pills?

A: Major regulatory drug interaction sections do not list a clinically relevant interaction with oral contraceptives (birth control pills). However, it is important that healthcare providers are informed of all medications and supplements being taken.

Q: Can Actim be used for pain relief?

A: Actim is officially indicated and approved only for the management of cardiovascular conditions like hypertension, angina pectoris, and chronic heart failure. Pain relief is not an approved use according to official regulatory bodies.

Q: What should I do if I forget to take a dose of Actim?

A: Official patient counseling information states that a missed dose is generally taken as soon as it is remembered. If it is nearly time for the next scheduled dose, the missed dose is typically skipped, and the regular schedule is resumed. Patients are generally advised not to take double or extra doses.

Q: Does Actim have a 'withdrawal' effect if you stop taking it suddenly?

A: Official warnings state that treatment must not be stopped abruptly, particularly in individuals with coronary heart disease. Suddenly stopping the medication could lead to a transitional worsening of the heart condition, so the dosage must be reduced gradually over time under medical supervision.

Q: Are there any specific foods I should avoid while on Actim?

A: Official regulatory information specifies that Actim can be taken with or without food. There are no specific food restrictions or dietary rules listed in the core labeling.

Q: Is Actim safe for people who have high blood pressure?

A: Actim is officially indicated and approved by regulatory bodies for the management of hypertension (high blood pressure). Its primary purpose is to help control high blood pressure.

Q: What happens if you take more Actim than prescribed (hypothetical, non-specific)?

A: Overdose is a serious event that necessitates immediate medical assessment. Regulatory documents list potential signs of overdose such as dangerously low blood pressure, severe slowing of the heart rate (bradycardia), or breathing difficulties (bronchospasm).

Q: Can Actim be prescribed to children?

A: Official regulatory documents state that the safety and effectiveness of Actim in children have not been established. Its use in the pediatric population is generally not recommended due to a lack of clinical experience in this age group.

Q: Can Actim cause weight gain or weight loss?

A: Weight gain is listed as an infrequent side effect in regulatory labeling. Rapid or unusual weight gain, especially when accompanied by other symptoms, is noted in regulatory documents as potentially being a sign of worsening heart failure.

Q: Does Actim affect your energy levels during the day?

A: Fatigue and asthenia (unusual weakness) are listed as common adverse reactions in official labeling, especially when starting the medication. Severe or persistent tiredness is generally advised to be discussed with a healthcare provider.

Q: Is it safe to drive or operate machinery while taking Actim?

A: This medication may affect motor skills, reaction time, or judgment, particularly at the beginning of treatment, when the dose changes, or if alcohol is consumed. Regulatory bodies state that patients should refrain from driving or operating complex machinery until they have determined how the drug affects their individual abilities.

Q: What is the difference between the immediate-release and extended-release versions of Actim?

A: Actim is described in its core regulatory information as an oral film-coated tablet intended for once-daily dosing. This administration schedule is consistent with a long-acting profile. No immediate-release version is explicitly featured or approved in the main regulatory labeling.

Q: Is it possible to have an allergic reaction to Actim?

A: Yes, hypersensitivity reactions are possible with any medication. Official safety information lists reactions such as rash, itching (pruritus), and flushing as rare adverse reactions.

Q: Are there any known interactions between Actim and herbal supplements?

A: While specific interactions with herbal supplements are often not explicitly listed on regulatory labels, it is important for patients to inform their healthcare provider of all medicines, herbs, and supplements they take. This is a general safety measure because some supplements may interact with the drug's effects.

Q: Is there a maximum time someone can safely be on Actim?

A: Actim is used to manage chronic conditions, and clinical studies have followed patients for two years or longer. There is no maximum duration of therapy specified on the regulatory label for its approved long-term uses.

Q: What are the possible signs of Actim not working effectively?

A: If symptoms of the treated condition—such as high blood pressure or heart failure—worsen, this may be a sign that the medication is not working effectively. Signs such as increased swelling, difficulty breathing, or an unusually slow heart rate are generally advised to be reported to a healthcare provider.

Q: Are there any long-term effects of taking Actim for many years?

A: The core data for efficacy and safety are derived from clinical trials that typically monitored patients for about 6 to 24 months. The regulatory labeling contains the established safety profile for this period, but it does not typically detail the safety profile for use extending many years beyond these trial durations.

Q: Does Actim have any known effects on fertility?

A: Erectile dysfunction is listed as a rare adverse reaction in the regulatory safety information. However, no specific effects on male or female fertility are listed in the major safety sections.

How should Actim be stored and disposed of?

How to Store and Dispose of Actim (Bisoprolol Fumarate)

Official regulatory guidelines mandate specific conditions for the storage and disposal of Actim tablets.


Storage Requirements

  • Temperature and Environment: Store the tablets at a temperature not exceeding 25 C and keep them away from excess heat and moisture, such as in the bathroom.
  • Container and Protection: The medicine must be kept in the container it came in and remain tightly closed to protect it from light.
  • Child Safety: Always store the product out of the sight and reach of children and use safety caps properly.
  • Stability: Do not use the medicine after the expiry date printed on the packaging.

Disposal Instructions

Actim must not be thrown away via household trash or wastewater. Disposal of any unused or expired product must be done in accordance with local regulations, typically by returning it to a pharmacist for proper handling.

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

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