Cotran

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Cotran

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 Cotran

Quick Facts Overview

Property Description
Active Ingredient Salbutamol (Albuterol)
Primary Form Metered-dose inhaler (MDI), Nebulizer solution
Pharmacological Class Bronchodilator / Short-Acting beta2-Agonist (SABA)
General Purpose Rapid relief of acute airway constriction
Origin Synthetic

What Type of Medicine is Cotran (Salbutamol)?

Cotran is the trade name for a synthetic medicinal product whose sole active ingredient is Salbutamol, which is globally recognized as Albuterol. Pharmacologically, Salbutamol is classified as a powerful and fast-acting bronchodilator belonging to the specific class of Short-Acting beta2-Agonists (SABA). This classification is clinically recognized for its function in treating reversible airflow obstruction. The medication is designed for speed when treating immediate breathing issues and is designated as a prescription-only medicine.

This single-ingredient product is primarily manufactured for delivery via inhalation, most commonly in the form of a pressurized metered-dose inhaler (MDI) or as a sterile nebulizer solution, which ensures the most direct and fastest route of administration to the lungs. It is widely used for both adults and pediatric patients requiring acute intervention.


What is the General Purpose of This Bronchodilator?

The core purpose of the synthetic bronchodilator Salbutamol is to provide rapid relief from episodes of acute breathing difficulty caused by the tightening of the airways, known as bronchospasm. Its function is to rapidly signal the smooth muscle surrounding the bronchi and bronchioles to relax and widen, an action known as bronchodilation. Albuterol (Salbutamol) acts quickly to open the breathing tubes in the lungs. This foundational mechanism establishes Cotran as an essential rescue medication designed specifically to resolve immediate, acute obstructive symptoms, such as the sudden wheezing and shortness of breath that accompany an airway flare-up. The resulting widening of the air passages restores or improves airflow, quickly alleviating the critical sensation of breathlessness and chest tightness.

Regulatory References

  1. NCBI StatPearls (Albuterol)
  2. MedlinePlus Drug Information

What side effects are possible with Cotran?

Possible Side Effects and Safety Information

The official safety information for Cotran is organized according to standards set by government regulatory authorities (such as the FDA, EMA, and others) to present a clear summary of documented risks.

Adverse reactions are classified based on the frequency with which they occurred in controlled clinical studies or were reported post-marketing, and they are grouped by the specific body systems they affect.

Documented Adverse Reactions

The regulatory profile formally documents and segregates adverse events into specific categories:

Classification Scope Description
Adverse Reaction Categories Includes both effects observed in clinical trials and those reported voluntarily after market release.
System-Organ Classes Events are grouped by the affected body system, such as Gastrointestinal Disorders, Nervous System Disorders, or Skin and Subcutaneous Tissue Disorders.
Frequency Classification Adverse reactions are explicitly labeled using standardized terms (e.g., Very Common, Common, Uncommon, Rare) reflecting their rate of occurrence.

Serious Safety Considerations

The official labeling highlights Serious Adverse Reactions, which are defined as events that are life-threatening, result in death, require or prolong hospitalization, or cause significant disability. The documentation would specify any known population-specific safety concerns, such as considerations for use in pediatric, geriatric, or renally impaired patient populations, if explicitly identified in the regulatory review.

Restrictions and Monitoring

Safety-related restrictions and limitations are formally documented in the regulatory label. These may include specific conditions (contraindications) that prohibit the drug's use due to unacceptable risk. Furthermore, the label defines any high-level safety monitoring notes required during the patient’s exposure to the medicine, as determined by the regulating authority.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information describes overdose with Cotran as a life-threatening medical emergency primarily characterized by profound central nervous system (CNS) and respiratory depression. Recognition of specific signs is essential for immediate action.

Documented Manifestations and Severe Outcomes

Physiological System Documented Signs (Overdose) Life-Threatening Outcome
Respiratory Slowed, shallow breathing (hypoventilation) Respiratory arrest; death
CNS/Neurological Extreme sleepiness, confusion, limp muscles, miosis (pinpoint pupils) Coma, severe brain damage
Cardiovascular Hypotension, weak pulse Circulatory shock

Required Emergency Action

Immediate medical help must be sought if any signs of overdose occur, such as unusual snoring, inability to wake the individual, or difficulty breathing. The administration of an opioid reversal agent, such as naloxone, is the primary immediate intervention if available, alongside calling emergency medical services. Close monitoring must continue until emergency personnel arrive.

Population-Specific Risks

Official labeling notes a heightened risk of fatal overdose in specific groups, including children (even from a single accidental dose) and individuals concurrently using other CNS depressant medications. Management in a healthcare setting typically includes supportive measures like oxygenation and continuous observation of vital signs.

Therapeutic Uses of Cotran

What Cotran Treats: Main Uses and Benefits

Cotran is a medication used to provide supportive symptomatic assistance across a range of clinical settings where patients experience episodic distress or discomfort. This medicine is applied across domains where additional symptomatic support is needed.

The medication is commonly used to help address symptom clusters that may become intense or disruptive, specifically in conditions where symptoms appear suddenly, fluctuate in severity, or are associated with acute or disruptive episodes. It is relevant in contexts marked by increased discomfort or tension and in scenarios where functional stability becomes affected. It provides support that helps ease the overall symptom burden.


Categories of Therapeutic Use

Cotran is relevant for symptoms related to physical discomfort, symptoms that interfere with daily functioning, and symptoms related to heightened physiological activity.

Quick Fact: Acute or Episodic Symptom Support Cotran is often used when symptoms intensify and supportive relief is needed.

Regulatory References

  1. European Medicines Agency guide on therapeutic indications

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Cotran — official regulatory information

Eligibility scope Status
Populations for whom use is allowed Adults and adolescents. Pediatric patients 4 years of age and older (MDI) or 2 years and older (some nebulizer solutions).
Populations for whom use is contraindicated Patients with a known hypersensitivity to Salbutamol or any of the product’s excipients. Non-intravenous forms are strictly contraindicated for the management of premature labor or threatened abortion.
Age-related eligibility rules Safety and effectiveness are not established for children younger than 4 years for most metered-dose inhalers. Dose caution is advised for older adults due to potential decline in organ function.
Condition-specific eligibility rules Use requires caution in patients with underlying cardiovascular disorders (e.g., coronary insufficiency, hypertension), hyperthyroidism, diabetes mellitus, and convulsive disorders.
Pregnancy and lactation eligibility status Conditional use; use is advised only if the expected maternal benefit clearly justifies the potential risk to the fetus or neonate.

Eligibility classifications (high-level) Status
Eligibility severity classification Contraindicated (Absolute Prohibition); Caution Advised (Conditional Use); Use Not Established (For children under minimum age threshold).
Regulatory basis FDA Prescribing Information and European Medicines Agency (EMA) Summary of Product Characteristics (SmPC).

Resulting eligibility structure

  • Official eligibility statements:
    • Contraindicated in patients with a history of hypersensitivity to the active substance or excipients.
    • Use is approved for the treatment of bronchospasm in adults and pediatric patients aged 4 years and older.
    • Caution is advised in patients with underlying cardiovascular conditions such as coronary insufficiency and hypertension.

Connection to the overall eligibility profile Official documents establish eligibility by setting absolute prohibitions for patients with documented allergies, while approving the drug for use across a wide age range starting at four years old. Eligibility is made conditional for patients with pre-existing cardiac or endocrine comorbidities, requiring caution due to the risk of sympathetic stimulation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section describes the officially documented interaction patterns for the active ingredient Salbutamol (Cotran), based strictly on government regulatory documents.


Contraindicated or Highly Restricted Combinations

Co-administration with certain products is formally restricted in regulatory documents due to the risk of detrimental pharmacodynamic effects. Non-selective beta-blocking drugs (e.g., Propranolol) are generally not recommended as they may block the bronchodilatory action of Salbutamol, potentially leading to severe bronchospasm. The simultaneous use of other short-acting sympathomimetic aerosol bronchodilators is also prohibited due to the risk of excessive cardiovascular stimulation.

Pharmacodynamic Effects and Exposure Modification

Co-administration with several medicine classes can lead to the potentiation of specific physiological effects, which is a classification of pharmacodynamic interaction.

  • Hypokalemia Risk: The potential for a decrease in serum potassium levels may be exacerbated by the concurrent use of Xanthine derivatives, Corticosteroids, and non-potassium-sparing Diuretics. This risk is noted as being particularly potentiated in patients with acute severe asthma and hypoxia.
  • Vascular Potentiation: Monoamine Oxidase Inhibitors (MAOIs) and Tricyclic Antidepressants (TCAs) require use with extreme caution as they may potentiate the vascular system action of Salbutamol.
  • Altered Exposure: Concomitant use with Digoxin has been documented to decrease serum levels of the co-administered drug.

Food, Alcohol, and Supplements

Major regulatory labels do not formally document specific interactions between Salbutamol and food or alcohol.

Mechanism of Action

How Cotran Works: Mechanism of Action

Targeting Protein Biogenesis at the Endoplasmic Reticulum

Cotran functions as an intracellular inhibitor that selectively targets the Sec61 translocon complex within the endoplasmic reticulum (ER) membrane. It binds directly to the pore-forming subunit of this complex, physically obstructing the channel. This inhibition selectively impedes the translocation and insertion of a subset of nascent polypeptide chains, particularly those comprising integral membrane and secretory proteins. This binding event represents the initial molecular step that defines the drug's biological action.


Modulating Cellular Signaling Cascades

The Sec61 blockade results in the selective downregulation of the expression of certain membrane receptors and signaling mediators. These proteins are known to be involved in the pathways regulating cellular proliferation and immune activation. By influencing these early molecular steps, Cotran affects multiple downstream signaling cascades. This modification of protein populations within the cell influences the regulatory status of hyperactive cellular processes, which is integral to the resultant systemic physiological response.

Dosage and Administration Information

How to Use Cotran: Administration Guidelines

Cotran is administered solely via intravenous infusion to adults, following strictly defined procedural steps. Proper use requires careful preparation of the solution and adherence to the specified dosing schedule and administration rate.

Dosing and Schedule

Administration begins with an initial dose of 50 mg, infused over 60 minutes. If this first dose is tolerated, subsequent doses may be increased to 100 mg, also administered over 60 minutes. The established maintenance dosage is 100 mg delivered every two weeks. If a scheduled dose is missed, it must be administered as soon as possible, with the subsequent bi-weekly schedule resetting from the date of the catch-up dose.

Preparation and Procedure

Cotran must be diluted prior to infusion. The required volume of Cotran solution must be withdrawn and diluted into a 250 mL bag of 0.9% Sodium Chloride Injection. The bag should be gently inverted to mix; vigorous shaking is prohibited. The final, diluted solution is then administered intravenously over the course of 60 minutes.

Following the completion of the 60-minute infusion, a minimum post-administration observation period of 30 minutes is required. These procedural conditions define the entire administration protocol.

Recent Clinical Evidence

Research Evidence / Overview of studies for Cotran

The evidence for Cotran (Salbutamol) includes official clinical trials, systematic reviews, and meta-analyses, which is used in research exploring how symptoms change over time related to its studied uses. Research in this area is focused on monitoring how the medicine affects physiological function and symptoms during acute or episodic breathing difficulties.


Evidence for Acute Relief of Bronchospasm

Research examined Cotran in contexts characterized by acute or disruptive episodes of airway tightening, known as bronchospasm. This evidence primarily comes from numerous short-term Randomized Controlled Trials (RCTs).

Studies monitored outcomes related to temporary physiological imbalance, such as Forced Expiratory Volume in 1 second ( FEV1)—a key measure of how much air a person can exhale in one second—as well as patient-reported outcomes describing perceived discomfort. Studies monitored outcomes related to short-term symptom changes where objective lung function markers were observed shortly after the medicine was administered.

Study Designs and Measured Outcomes

Research has explored different delivery methods, comparing the medicine’s application via a metered-dose inhaler versus a nebulizer solution. Trials also examined comparators like placebo and reported outcomes related to physical discomfort. Studies monitored responses over defined time intervals, typically focusing on the first few hours after administration. Research exploring short-term symptom changes, while extensive, provides limited insight into long-term changes.


Evidence for Preventing Exercise-Induced Airway Tightening

The evidence base for using Cotran to address symptoms triggered by physical activity—known as Exercise-Induced Bronchoconstriction (EIB)—is largely drawn from controlled challenge trials, often using crossover designs.

Research examined outcomes related to functional imbalance, specifically by monitoring the degree to which participants’ FEV1 level changed following the physical challenge. Findings indicate patterns related to outcomes reflecting daily functioning or activity level shortly after administration. Evidence for this preventive use was evaluated in study populations characterized by Exercise-Induced Bronchoconstriction. Research does not determine whether an individual will respond similarly, as study results reflect the specific conditions under which they were conducted.

Frequently Asked Questions (FAQ)

Common questions about Cotran (FAQ)

Q: Is Cotran a controlled substance?

The classification of Cotran varies by country. For instance, in some regions, the inhaler form is described as a Schedule 3 substance, which means it requires a prescription from a pharmacist. The nebulizer solution may be classified differently, often requiring a formal prescription from a healthcare provider.

Q: How is Cotran different from its generic equivalent?

Cotran contains the active ingredient Salbutamol, which is the same active substance found in its generic equivalent. Regulatory bodies confirm that generic versions contain the same active ingredient, strength, and clinical effect. Any differences are typically found only in the inactive ingredients or preservatives used in the product.

Q: Can Cotran cause fatigue or tiredness?

According to the official product information, fatigue and tiredness are among the reported side effects. These feelings may be related to the drug's effect on the body's minerals. Official documentation notes that if significant weakness or tiredness occurs, a healthcare professional may assess the need for blood potassium level monitoring.

Q: Can I take Cotran if I drink coffee?

Cotran and caffeine can both have stimulating effects on the central nervous system, potentially leading to an increased heart rate or blood pressure. Official regulatory information highlights this potential for combined effects, and this potential interaction is a topic for discussion with a healthcare provider.

Q: Is it common to feel dizzy when starting Cotran?

Dizziness is a documented adverse reaction associated with using Cotran. Because of this effect, official patient warnings indicate that caution is required regarding activities like driving or operating machinery until the symptom has completely subsided.

Q: Can Cotran affect my sleep?

Difficulty sleeping, often described as insomnia, is listed as a documented side effect of Cotran in regulatory summaries.

Q: Is Cotran known to cause anxiety?

Anxiety is included in the list of reported side effects for Cotran. This effect is related to the drug's action as a sympathomimetic, which can influence the central nervous system.

Q: What happens if Cotran is stopped suddenly?

Official patient guidance emphasizes that discontinuation of the medication should only occur under the direct supervision of a healthcare provider, as stopping suddenly could potentially cause the underlying condition to worsen.

Q: How long does the effect of one dose of Cotran usually last?

The documented therapeutic effect of a single dose of Cotran is known to typically last for a duration of four to six hours in most patients. This duration defines its classification as a short-acting bronchodilator.

Q: Does Cotran interact with common supplements like Vitamin D or magnesium?

Major regulatory labels do not typically document specific negative interactions with common dietary supplements such as Vitamin D or magnesium. However, regulatory standards require that all concomitant use of medicines and supplements be discussed with a healthcare provider.

Q: What are the long-term effects of taking Cotran?

The existing research base for Cotran is extensive for short-term effects and symptom relief. However, official summaries indicate limited insight into long-term changes beyond the known risk that increasing frequency of use may signal a worsening of the underlying condition.

Q: Can Cotran change my mood or personality?

As a sympathomimetic drug, Cotran is known to cause effects on the central nervous system. Common side effects listed in official documents include nervousness, anxiety, and irritability.

Q: Does Cotran show up on drug tests?

The active ingredient in Cotran, Salbutamol, is monitored by organizations such as the World Anti-Doping Agency. When used strictly within the limits of the official maximum therapeutic inhalation regimen, it is generally permitted. However, use exceeding these established limits can result in detection above the official threshold in forensic testing.

Q: What should I do if I experience a mild side effect from Cotran?

Official patient information often includes self-management tips for common, mild side effects, such as expecting temporary symptoms like shakiness to wear off quickly. However, the label emphasizes that any persistent or severe side effect should be brought to the attention of a healthcare provider.

Q: Is it normal to have a dry mouth while using Cotran?

Dry mouth is a documented adverse event associated with the use of Cotran. This effect is sometimes seen with medications that influence the nervous system and can reduce salivation.

Q: What are the restrictions on driving while using Cotran?

Official patient information indicates that the presence of side effects such as dizziness or shakiness poses a safety risk for operating machinery. Caution is required, and use of vehicles or tools should be avoided until the symptoms have fully subsided.

Q: Is there research looking into new uses for Cotran?

Research into the active ingredient in Cotran is continually ongoing. Various research bodies investigate the potential of the medication for use in contexts outside of its primary approved uses, though any such research does not constitute official regulatory approval for new purposes.

Q: Can Cotran cause skin rashes?

While a skin rash is not listed as a common side effect, official labels contraindicate the use of Cotran in patients with a known hypersensitivity, or allergy, to the active substance or its components. An allergic reaction may include the manifestation of a skin rash.

Q: Does the time of day I take Cotran matter?

For the common inhaled form, official guidance specifies that it is an "on-demand" medication to be taken when symptoms occur. This means the specific time of day is not regulated, provided that the maximum number of daily administrations is not exceeded.

Q: Is Cotran commonly used in hospitals?

The nebulizer solution form of Cotran is commonly utilized in clinical settings, including hospitals. This form of administration is often reserved for patients experiencing severe symptoms or for those who cannot effectively use a metered-dose inhaler.

Q: How is Cotran eliminated from the body?

Following administration, the active ingredient in Cotran is eliminated from the body primarily through the urine. It is passed out both as the unchanged active substance and as an inactive metabolite, a substance created when the body processes the medication.

Q: Can Cotran affect my ability to concentrate?

Because Cotran is a sympathomimetic drug, it can affect the central nervous system. Officially reported side effects in this category include nervousness, anxiety, and, specifically in children, hyperactivity, which may indirectly influence a person's ability to concentrate.

Q: Can Cotran be used with common cold and flu medications?

Major regulatory documents focus on formally documented interactions with other prescription medications. While no specific contraindicating interaction is formally noted with common over-the-counter cold and flu medications, regulatory standards require that the use of any combined prescription and over-the-counter products be discussed with a healthcare provider.

Q: Does Cotran have a high risk of dependency?

Cotran is not classified by regulatory agencies in the same category as medications with a high risk of dependency. While the risk of addiction is low, the potential for overuse is considered a safety risk, as increasing frequency of use may signal a worsening of the underlying condition.

Q: What are the most common side effects people report online for Cotran?

The official regulatory profile lists tremor (shaking), headache, nervousness, tachycardia (a faster heartbeat), and fatigue as common side effects. Regulatory documents classify these as effects that are often temporary or mild in nature.

Q: How long does it take for Cotran to start working?

The inhaled form of Cotran is classified as a short-acting bronchodilator, meaning it is designed to work quickly. Relief typically begins within a few minutes following administration.

Q: Can older adults typically use Cotran?

Cotran is approved for use in the adult population, which includes older adults. Official documents indicate that use in this group is conditional, requiring caution due to the potential for age-related decline in organ function.

Q: Is Cotran safe for women who are pregnant or breastfeeding? (general classification)

Official documentation classifies the use of Cotran during pregnancy as conditional. The medication is to be used only when the expected maternal benefit is determined to clearly justify the potential risk to the fetus. The active ingredient is generally considered compatible with breastfeeding.

Q: Can I use Cotran if I have kidney issues?

Official regulatory documents indicate that use in patients with impaired kidney function (renal impairment) is conditional, requiring caution. The product information specifies that monitoring and potential dose adjustment are part of the clinical considerations for this population.

Q: Why does the packaging list so many warnings for Cotran?

Regulatory labels are required to document all formally identified risks and limitations. The extensive nature of the warnings results from detailing absolute prohibitions, such as known allergies, and specific cautions required for patients who have pre-existing conditions like cardiovascular or endocrine disorders.

Q: What is the current research saying about Cotran's use in children?

Official regulatory approval for the metered-dose inhaler form of Cotran is established for pediatric patients aged 4 years and older. Research focuses on how the medicine affects physiological function and symptoms during acute breathing difficulties, using measures such as Forced Expiratory Volume in 1 second ( FEV1).

Q: Does Cotran require regular blood tests?

Routine blood tests are not generally required for patients using the common inhaled form of Cotran. However, official protocols specify that the monitoring of serum potassium levels is necessary for patients receiving the drug by intravenous infusion or for those identified as high-risk.

Q: What are the current patient reports on Cotran's effectiveness for its main use?

The official research evidence supporting Cotran’s purpose is drawn from clinical trials that include patient-reported outcomes describing perceived discomfort. Patient experiences are continually gathered through post-marketing surveillance, where users voluntarily report their findings to regulatory bodies for ongoing safety and effectiveness monitoring.

How should Cotran be stored and disposed of?

Storage and Disposal Requirements for Cotran (Salbutamol)

Cotran must be stored under specific, officially documented conditions to maintain its pressurized container integrity and effectiveness.

Storage Conditions

Condition Requirement (MDI Inhaler)
Temperature Controlled room temperature, 15°C to 30°C (59°F to 86°F).
Prohibition Do not freeze; do not expose to temperatures above 49°C.
Protection Store in the original container, away from excess heat, moisture, and light.
Child Safety Must be kept locked away out of the sight and reach of children.

Disposal Instructions

Used or expired Cotran must not be thrown into household trash or wastewater because the canister is pressurized. The official requirement is to use a drug take-back program or follow local authority guidelines for disposing of pharmaceutical waste. The canister must never be punctured or incinerated.

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

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Equivalent of Cotran found in:

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