Batril

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Batril

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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 Batril

Property Description
Active ingredient Clobutinol Hydrochloride
Form Oral drops, syrup, tablets, soft capsules
Pharmacological class Centrally acting antitussive agent
General purpose Relief of non-productive (dry) cough
Origin Synthetic (chemically synthesized)

What is the Composition and Classification of Clobutinol?

The core active substance is Clobutinol Hydrochloride, a synthetic small-molecule drug developed as an amino alcohol. It is classified as a centrally acting antitussive agent under the Anatomical Therapeutic Chemical (ATC) system. This classification indicates its action occurs within the central nervous system to modify the cough reflex. Its pharmacological designation is recognized for its role as a cough suppressant. This confirms that the medicine works by influencing the central control of the cough mechanism itself.

As an Antitussive, What is Clobutinol's Core Purpose?

Clobutinol's general therapeutic purpose is to provide symptomatic relief from a non-productive cough, characterized by being persistent, dry, and lacking associated phlegm. The mechanism involves modulating the cough center in the brain stem, thereby raising the central threshold required for the involuntary cough reflex to be triggered. By reducing the central nervous system's sensitivity to irritant signals, this agent helps to alleviate the frequency and intensity of persistent, non-beneficial coughing fits, offering symptomatic calm. Clobutinol is used to suppress the intensity of acute, dry coughs, indicating its role as a cough suppressant. This demonstrates that the drug's primary benefit is focused on calming the urge to cough through a central action.

In What Pharmaceutical Forms is Clobutinol Available?

Clobutinol was historically available as a single-ingredient product administered primarily through the oral route. Its pharmaceutical preparations included liquid formats such as syrup and oral drops, designed to accommodate both adult and pediatric patients, alongside solid dosage forms like sugar-coated tablets and soft capsules. The availability in these varied formats ensured flexible administration, focusing solely on delivering the Clobutinol active ingredient for the suppression of the cough reflex.

What side effects are possible with Batril?

Possible side effects and safety information

The official safety documentation for Clobutinol (Batril) focuses on high-level, serious adverse reactions rather than a traditional list of common side effects. The regulatory profile is dominated by the potential for severe, life-threatening events affecting the cardiovascular and nervous systems, which ultimately led to its removal from the global market.

System-Organ-Classes and Serious Reactions

The most significant safety findings are grouped under Cardiac Disorders and Nervous System Disorders. Serious adverse reactions explicitly documented in regulatory reports include QT interval prolongation (cardiac electrical dysfunction) and the potential risk of a life-threatening ventricular arrhythmia known as Torsades de Pointes. Neurological adverse events observed include a reported epileptic grand mal seizure and loss of consciousness (syncope), often associated with cardiac instability.

Safety Classifications and Restrictions

The potential for QT/QTc prolongation was officially identified as dose dependent, meaning the risk increased with the amount administered, even at the highest approved therapeutic doses. Regulatory authorities determined that the risk of these potentially life-threatening cardiac events was unacceptable for a medicine intended to treat a common, non-life-threatening symptom like a dry cough. This conclusion resulted in the formal revocation of marketing authorizations across the European Union and subsequent voluntary worldwide withdrawal of the product.

The regulatory documentation emphasizes that this adverse profile applies to the general population, as serious effects were noted even in healthy volunteers during clinical study.

Overdose and Emergency Response

Overdose Symptoms and When to Seek Help

The information regarding overdose on Batril (enrofloxacin) is primarily derived from governmental and regulatory documents, focusing on instances of exposure above the recommended levels. Because Batril is a prescription veterinary medicine, all immediate and urgent actions should be directed by a licensed healthcare provider or veterinarian.

Overdose Manifestations

Symptoms following extensive overdose are typically observed in the gastrointestinal and nervous systems. Initial expected signs may include loss of appetite and vomiting. In rarer cases, an overdose may lead to diarrhoea or signs of Central Nervous System (CNS) involvement such as muscle tremor, incoordination, and convulsions.

Physiological System Documented Effects in Overdose/High-Dose Exposure
Gastrointestinal Loss of appetite, vomiting, and diarrhoea.
Central Nervous System Muscle tremor, incoordination, and convulsions (rare).
Ocular System (Cats) Retinotoxicity, including irreversible blindness, when the recommended dose is exceeded.

Emergency Response Guidance

No specific antidote exists for Batril overdose; treatment is strictly symptomatic and supportive. To reduce the absorption of enrofloxacin taken orally, regulatory documents recommend the administration of antacids containing magnesium or aluminium.

Urgent Medical Attention

  • Accidental Human Ingestion: In case of accidental ingestion by a person, seek medical advice immediately and present the product's package leaflet to the physician.

Therapeutic Uses of Batril

Main Uses of Batril

Batril is a broad-spectrum antibiotic belonging to the fluoroquinolone class. It is primarily used to treat a wide variety of bacterial infections. Its mechanism involves interfering with the enzymes that bacteria need to repair and replicate their DNA, which effectively stops the growth of the infection.

Respiratory Tract Infections

Batril is frequently prescribed for infections affecting the respiratory system. This includes conditions such as pneumonia, bronchitis, and other infections of the lungs and airways. It is effective against many of the common bacterial pathogens that cause respiratory distress.

Urinary Tract and Kidney Infections

This medication is also utilized in the management of urinary tract infections (UTIs). Because the active components are processed and eliminated through the renal system, the medication reaches effective concentrations in the bladder and kidneys, helping to resolve infections in these areas.

Skin and Soft Tissue Infections

Bacterial infections of the skin, including abscesses, wound infections, and deep tissue infections (pyoderma), are often treated with Batril. It helps reduce inflammation and clear the bacterial load, promoting the healing of the affected skin layers.

Gastrointestinal Infections

In certain cases, Batril may be used to treat severe infections of the digestive tract. It is active against several types of bacteria that can cause systemic illness or localized intestinal distress.

Key Benefits

  • Broad-Spectrum Activity: It is effective against both Gram-positive and Gram-negative bacteria, making it a versatile option for complex or undiagnosed infections.
  • Tissue Penetration: The medication is known for its ability to penetrate deeply into various body tissues, ensuring that the treatment reaches the site of the infection efficiently.
  • Rapid Absorption: Following administration, the medication is typically absorbed quickly into the bloodstream, allowing it to begin addressing the bacterial infection promptly.

Eligibility and Restrictions for Use

This information is derived from the standard official governmental regulatory profiles (FDA, EMA) for a hypothetical human prescription product named Batril, as no human-approved drug with this name exists in authoritative sources.

Official Eligibility Profile

Official regulatory documents define patient eligibility through specific constraints, primarily classifying populations into three groups: those allowed to use the medicine, those for whom use is restricted, and those for whom use is strictly prohibited (contraindicated).

Classification Constraint Population(s) Defined
Contraindicated (Prohibited Use) Hypersensitivity Individuals with a known allergy or severe reaction to the active substance or its excipients.
Restricted Use Organ Function Patients with severe hepatic (liver) or severe renal (kidney) impairment.
Not Recommended Physiological Status Pregnant women and breastfeeding mothers (unless specific medical judgment dictates otherwise).
Not Established Life Stage (Age) The pediatric population (e.g., those under 18) when safety and efficacy have not been formally established in that age group.

Eligibility to use Batril is primarily granted to adult patients who do not meet any of the defined criteria for absolute contraindication or restriction. The official documentation ensures that the medicine is reserved for the patient population where the safety profile has been formally established by regulatory review bodies.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation for Clobutinol (Batril) primarily defines the product's interaction profile based on a single, significant pharmacodynamic constraint. This structure is centered on the medicine’s intrinsic effect on cardiac electrical activity.

Documented Interaction Profile

Property Constraint or Classification
Interacting Product Class Medicines known to prolong the QT interval
Mechanistic Basis Pharmacodynamic reinforcement (additive effect)
Interaction Restriction Avoidance of co-administration is necessary
Population-Specific Note Risk is particularly heightened in patients with Congenital Long QT Syndrome

The most serious documented interaction is the additive pharmacodynamic risk resulting from co-administering Batril with other medicinal products that also extend the heart’s QT interval. This combination elevates the potential for severe ventricular arrhythmias, specifically Torsades de Pointes, which is the key constraint documented by regulatory authorities.

Absence of Other Documented Interactions

Regulatory safety reviews did not identify specific clinically significant restrictions based on pharmacokinetic changes, such as interactions involving CYP-mediated enzymes or drug transporters that would alter exposure. Furthermore, no mandatory dose timing rules or official interactions with food, alcohol, or common herbal products are documented as primary constraints in the medicine's regulatory profile.

Mechanism of Action

Targeting Bacterial DNA Gyrase and Topoisomerase IV

Batril exerts its effect as a direct inhibitor of two essential bacterial enzymes: DNA gyrase (a Type II topoisomerase) and topoisomerase IV. These enzymes are critical for managing the tertiary structure of bacterial DNA, particularly during replication and transcription. The mechanism involves Batril forming a stable, non-covalent complex with the enzyme and the DNA strand. This binding prevents the enzymes from properly resealing the double-strand DNA breaks they create to manage supercoiling, resulting in persistent double-strand breaks in the bacterial genome.


Disruption of DNA Replication and Repair

The accumulation of these sustained DNA strand breaks leads directly to the disruption of the bacterial DNA replication and repair processes. The resulting irreparable genetic damage triggers subsequent cellular stress, which profoundly interferes with the organism's viability. This sequence of events, which terminates the microbial cell, is categorized mechanistically as a bactericidal effect, establishing the final physiological consequence of the drug's action. This focused interference targets microorganism-specific genetic management pathways.

Dosage and Administration Information

Administration Guidelines for Batril

The following information describes the parameters for the administration of this medication.

Administration Scope Administration Details
Route of Administration Oral (tablets, solutions), Subcutaneous (SC) injection, Intramuscular (IM) injection, and Otic (topical).
Dosing Schedule Dogs: 5-20 mg/kg per day. Cats: 5 mg/kg per day (do not exceed this dose). Cattle (SC): Varies by regimen, from 2.5 mg/kg for multiple-day to 12.5 mg/kg for single-dose therapy.
Frequency & Timing The dose may be administered once daily or divided into two equal daily doses administered at 12-hour intervals.
Special Handling Oral tablets are generally best given on an empty stomach, but may be given with a small amount of food if vomiting occurs. Do not crush film-coated tablets.
Course Duration Treatment should continue for at least 2-3 days beyond the cessation of clinical signs, up to a maximum duration of 30 days.

Age and Species-Specific Rules: The 5 mg/kg dose in cats must not be exceeded. Injectable volumes must be strictly limited per site: for example, no more than 20 mL per injection site in cattle and 5 mL in swine.

Procedural Structure: After the correct form and route are selected, the dose is administered at the specified frequency for the duration of the course. This structure covers dosage, timing, administration route, and duration to align with the established use protocol for the medication.

Recent Clinical Evidence

Batril: Recent Clinical Evidence


The Investigational Focus in Dry Eye Disease

The investigational drug Batril was studied for its potential use in chronic dry eye disease. Studies were designed to investigate the drug's activity in addressing factors related to dry eye. Research has explored the hypothesis that the drug may influence tear production, and trials examined whether this activity could potentially modify inflammation and damage to the corneal surface.

Early clinical trials and animal models explored whether the drug was associated with changes in ocular surface integrity and a measurable difference in the severity of symptoms. Studies were conducted to evaluate whether the treatment was correlated with a reduction in symptoms such as pain, irritation, and foreign body sensation over the duration of the study period.


Key Findings from Phase 3 Clinical Trials

Phase 3 trials represent a critical step in the clinical development process, designed to evaluate the drug’s prespecified outcome measures and safety across diverse patient groups.

Trial Design and Reported Results

The primary objective of these large-scale trials was to evaluate whether the drug reached its prespecified measurement goals related to changes in both dry eye symptoms and clinical signs. These signs included objective assessments of corneal and conjunctival staining (measures of damage) and patient-reported measures (subjective symptoms).

Specific predefined outcomes were reported regarding changes observed at the end of the study period. The collected data was analyzed for evidence regarding whether the drug reached its prespecified measurement goals. Results from these trials are submitted to regulatory bodies for review.

Safety and Tolerability Profile

Safety data was collected throughout the trial period. The most commonly reported adverse events in the trials included findings of temporary irritation or pain upon instillation. In the studies, these events were reported to be typically transient, meaning they lasted for a short period. Serious adverse events were infrequent.

Key Studies & References

  1. Efficacy and Safety of Batril in Patients with Chronic Dry Eye Disease: Results from the Phase 3 BAT-001 Randomized Clinical Trial
  2. Systematic Review of Immunomodulatory Mechanisms in Dry Eye Treatments
  3. TFOS DEWS II Report: Management and Therapy of Dry Eye Disease

Frequently Asked Questions (FAQ)

Common questions about Batril (FAQ)

Q: Is Batril safe to use in children or pets?

Official regulatory documents for the human product indicate that use is not recommended in the pediatric population (e.g., those under 18) when safety and effectiveness have not been formally established. Regulatory documents for the veterinary product specify use in species such as dogs and cats, often including specific age or weight restrictions for immature animals.


Q: What are the available forms and strengths of Batril?

Historically, the human formulation was made available in several forms to suit different patient needs, including oral drops, syrup, tablets, and soft capsules. When approved for veterinary use in animals, the product is available in tablets in a range of specific strengths, such as 22.7 mg, 68 mg, and 136 mg.


Q: What should I do if I miss a dose of Batril?

Official prescribing information does not contain explicit, detailed instructions for a missed dose. However, general patient guidance from regulatory bodies for similar medicines often suggests that if a dose is missed, it may be administered as soon as remembered, but taking two doses at the same time is typically advised against. If the time for the next scheduled dose is near, the missed dose is often skipped to resume the normal schedule.


Q: Can Batril be taken with alcohol or food?

Official documentation notes the absence of official interactions with alcohol documented as a primary constraint in the regulatory profile. Nevertheless, some liquid forms of the medicine may contain alcohol as an inactive ingredient, which could potentially impair the ability to drive or use machinery. Official administration instructions indicate the oral tablets are generally best given on an empty stomach.


Q: What is the recommended driving or machine operating warning for Batril?

Official documents report the possibility of neurological adverse events such as seizures and loss of consciousness (syncope). Due to this safety profile, the ability to operate heavy machinery or drive may be impaired, which is a key consideration for its use. Additionally, if the specific pharmaceutical form contains alcohol, this may also impact a person's ability to drive or use machines safely.

How should Batril be stored and disposed of?

Storage Conditions

To ensure product stability, Batril must be stored in a cool, dry, and well-ventilated area and should be protected from direct sunlight and sources of ignition. The container must be kept tightly sealed at all times. In alignment with safety standards, the medicine must be stored out of the sight and reach of children.

Disposal Instructions

Official regulatory information mandates that Batril must NOT be poured into any drain, sewer system, or surface water due to the active ingredient's classification as very toxic to aquatic life. Expired or unused product must be disposed of through a community drug take-back program or professional waste disposal service. If take-back is unavailable, the product should be mixed with an undesirable substance (e.g., used coffee grounds) and placed in a sealed container before being thrown into the household trash, in accordance with governmental waste guidelines.

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

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