Klabion

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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 Klabion

Quick Facts

Property Description
Active ingredient Clarithromycin
Form Film-coated tablets, Granules for oral suspension
Pharmacological class Macrolide antibiotic
Common use Systemic defense against bacterial infections
Origin Semi-synthetic (derived from erythromycin)

What is Klabion and Its Classification?

Klabion is a medicinal product whose active ingredient is Clarithromycin, which is defined as a semi-synthetic macrolide antibiotic. This compound belongs to the second generation of its class of antimicrobial agents, distinguished from earlier macrolides by chemical modification which provides improved stability. Clarithromycin is classified as an effective macrolide with activity against a wide array of susceptible bacterial pathogens. This medicine plays a critical role in controlling the spread of certain bacteria. This semi-synthetic nature and its clinical effectiveness mean the drug is recognized for its reliable performance across diverse patient populations.


Composition, Forms, and General Therapeutic Purpose

The fundamental composition of Klabion centers entirely on its sole active ingredient, Clarithromycin, along with the necessary pharmaceutical excipients required for final production. The medicine is available for oral administration in various dosage form(s) to suit the general patient population, primarily as film-coated tablets and granules for oral suspension. Clarithromycin is noted for its activity against key respiratory pathogens, which reflects the drug's role in tackling bacterial diseases. The overall general purpose of Klabion is to provide systemic defense against susceptible pathogenic bacteria. It achieves this by interfering with the bacteria's vital function of protein synthesis, preventing the microorganisms from growing and replicating, which is the defining action of the macrolide antibiotic class.

What side effects are possible with Klabion?

Klabion: Possible Side Effects and Safety Information

Klabion (a fluoroquinolone antibiotic) carries a Boxed Warning from regulatory authorities concerning the risk of serious, disabling, and potentially permanent adverse reactions affecting multiple body systems. Due to these risks, its use is restricted for certain uncomplicated infections when other treatment options are available.


Key Adverse Reactions and Safety Concerns

Adverse reactions of particular clinical significance, which may occur rapidly or be delayed for months, involve the:

  • Musculoskeletal System: Tendinitis and tendon rupture (especially the Achilles tendon), which can occur within 48 hours to several months after stopping treatment. Other effects include muscle pain, weakness, and joint swelling.
  • Nervous System: Peripheral neuropathy (nerve damage) with symptoms such as burning pain, tingling, numbness, or weakness in the extremities. Central nervous system effects include depression, anxiety, memory impairment, and confusion.
  • Other Serious Effects: Blood glucose disturbances (hypoglycemia, sometimes leading to coma), prolongation of the QT interval (a cardiac risk), and worsening of myasthenia gravis.

Safety Restrictions and High-Risk Populations

Treatment must be stopped immediately at the first sign of tendon pain, nerve symptoms (like tingling), or central nervous system effects to potentially prevent irreversible damage.

The risk of tendon injury is higher in certain populations, requiring special caution:

  • Older Patients (over 60 years of age)
  • Patients with renal impairment (kidney disease)
  • Patients who have received a solid organ transplantation

Concomitant use with a corticosteroid (such as prednisone) increases the risk of tendon damage and should be avoided.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory documentation for Klabion (Clarithromycin) describes overdose primarily by its clinical manifestations and the required emergency response. Overdose has been reported to be associated with gastrointestinal signs, including abdominal pain, vomiting, nausea, and diarrhea.

Documented Overdose Manifestations and Risks

Classification Official Regulatory Note
Common Manifestations Gastrointestinal distress and reports of transient hearing loss have been observed following the ingestion of high doses.
Severe Toxicity Risk Overdose involving Clarithromycin concomitantly with colchicine has been associated with reports of fatal toxicity. This risk is increased in elderly patients with renal insufficiency and those with hepatic impairment (when taken with colchicine).
Cardiac Potential The product information notes the association of Clarithromycin with QT interval prolongation and reports of ventricular arrhythmias (such as Torsades de Pointes).

Mandated Emergency Actions

In the event of a suspected overdose, immediate medical attention must be sought. Official regulatory guidance states that there is no specific antidote known for Clarithromycin overdose. Treatment is centered on symptomatic and supportive measures, including the prompt elimination of unabsorbed drug. Furthermore, the label notes that the drug's serum concentrations are not expected to be significantly affected by hemodialysis or peritoneal dialysis.

Therapeutic Uses of Klabion

What Klabion Treats: Main Uses and Benefits

Klabion is applied across domains where additional symptomatic support is needed in situations involving certain distressing symptoms. This macrolide antibiotic is commonly used across conditions presenting with acute episodes. It helps address symptom clusters related to systemic imbalance and localized inflammatory states.

The medication is relevant for managing several types of bacterial conditions, including lower and upper respiratory tract symptoms (like community-acquired pneumonia and sinusitis), symptoms related to skin and soft tissue conditions, symptoms presenting in the ear and throat, and, as part of combination therapy, symptoms associated with Helicobacter pylori. This assists with maintaining functional stability and supports general well-being during symptomatic phases.

It is considered relevant for patients requiring an alternative to penicillin-class antibiotics and may be part of symptomatic management related to persistent bacteria like Mycobacterium avium complex (MAC).

Quick Fact: Symptom Categories Addressed
Supports management of: Pain, fever, inflammation, and symptoms related to inflammatory or irritative states.
Primary benefit: Supports patients during episodes of heightened discomfort and contributes to easing the overall symptom load.

Eligibility and Restrictions for Use

Contraindicated Populations

Klabion is contraindicated and must not be used by patients with a known hypersensitivity to clarithromycin or any other macrolide antibiotic, or by those with a history of cholestatic jaundice associated with prior macrolide use. Use is also prohibited for individuals with pre-existing conditions such as QT prolongation, ventricular cardiac arrhythmias, or the combination of severe hepatic failure with renal impairment. The medicine is strictly contraindicated if the patient is concomitantly taking certain high-risk medications, including lovastatin, simvastatin, pimozide, or ergot alkaloids.


Age and Condition Restrictions

Film-coated tablets are not recommended for children under 12 years of age, who must use the specific oral suspension formulation. Data on use in infants under six months of age is limited. Patients with severe renal insufficiency require a mandatory dosage reduction. Use requires caution in patients with isolated impaired hepatic function, as well as those with pre-existing severe cardiac insufficiency or conduction disturbances. Use during pregnancy is generally not advised, and safety is not established during lactation.

What should I know about interactions with other medicines?

Klabion (Clarithromycin) is officially documented as an inhibitor of the Cytochrome P450 3A4 (CYP3A4) enzyme and the P-glycoprotein (P-gp) transporter. This dual inhibitory action significantly affects the metabolism of numerous co-administered medicinal products, necessitating strict regulatory constraints on their use.

Clinically Significant Interactions

Classification Interacting Medicines/Classes Interaction-Related Restriction
Contraindicated HMG-CoA Reductase Inhibitors (e.g., Lovastatin, Simvastatin), Ergotamine, Dihydroergotamine, and certain agents known to prolong the QT interval (e.g., Pimozide, Cisapride). Co-administration is prohibited due to the risk of serious adverse events (e.g., rhabdomyolysis, severe cardiac toxicity).
Use With Caution Colchicine, Digoxin, Midazolam, Triazolam, Anticoagulants (Warfarin), Antiarrhythmics (Quinidine, Disopyramide), and various CYP3A4-metabolized Calcium Channel Blockers. Requires careful patient monitoring, dose adjustment of the co-administered drug, or therapeutic drug level monitoring.
Timing Constraint Zidovudine Immediate-release formulations of Klabion should be administered at least 2 hours apart from Zidovudine to manage reduced serum concentrations.

Co-administration with potent CYP3A inducers, such as Rifampicin or Phenytoin, is expected to decrease Klabion concentrations, potentially compromising its effectiveness. Official labeling also includes specific warnings regarding interactions when used in patients with pre-existing renal or hepatic impairment, particularly with drugs like Colchicine, due to increased systemic exposure.

Mechanism of Action

Selective Inhibition of Bacterial Protein Synthesis

Klabion (Clarithromycin) primarily acts by selectively targeting the bacterial 50S ribosomal subunit, specifically binding to the 23S rRNA within the peptide exit tunnel. This high-affinity interaction creates a physical blockade that prevents the elongation of the growing polypeptide chain, effectively halting the bacteria's essential protein synthesis process. This mechanism classifies the drug as bacteriostatic, resulting in the suppression of bacterial growth and multiplication within the host system.


️ Modulation of Host Response and Systemic Constraints

Beyond its primary antimicrobial effect, Clarithromycin also functions as a modulator of host inflammatory pathways by suppressing the release of key pro-inflammatory cytokines. This secondary action involves the modulation of specific immune signaling pathways. The functional mechanism is intrinsically limited, however, by bacterial counter-mechanisms, chiefly enzymatic ribosomal methylation or the presence of active efflux pumps, which compromise the drug's ability to reach or bind its ribosomal target.

Dosage and Administration Information

Klabion, which contains the active ingredient Clarithromycin, is administered primarily by the oral route as immediate-release (IR) tablets, extended-release (ER) tablets, or granules for suspension. For initial management of severe conditions, the drug may be administered via intravenous (IV) infusion for a short period before switching to the oral form.

The standard adult dosing for immediate-release tablets is typically 250 mg to 500 mg, which is prescribed for twice-daily (every 12 hours) administration. In contrast, the extended-release formulation is administered as 1000 mg once daily.

Administration context depends on the specific formulation being used. IR tablets and the oral suspension may be taken with or without food. However, the ER tablets must be taken with food to ensure proper absorption.

The duration of use is generally 7 to 14 days, but the precise length is determined by the condition being addressed. For example, use in certain Streptococcus infections involves a minimum of 10 days. Specific procedural steps ensure correct use: the ER tablet must be swallowed whole and must not be crushed, split, or chewed, and the liquid suspension must be shaken well prior to each use.

For certain patient populations, the dose requires modification. The total daily dose is reduced by one-half for adult patients with severe renal impairment (creatinine clearance less than 30 mL/min). Pediatric patients are typically given the suspension form, dosed based on body weight.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Klabion (Clarithromycin)

This overview summarizes the types of research and general findings for Klabion (Clarithromycin) that are documented in official sources. The goal is to describe what the studies explored and what has been observed so far, without offering any clinical advice or individual predictions.


Evidence for Use in Acute Respiratory and Skin Infections

Research exploring Klabion has focused significantly on short-term randomized controlled trials (RCTs) and systematic reviews. These studies were applied in research contexts involving fluctuating or unstable symptoms related to acute infections. Studies monitored outcomes such as the measured clearance of bacteria from the body (bacteriological eradication) and patient-reported outcomes describing perceived discomfort and how symptoms like fever and cough evolved in the observed populations.

The findings describe patterns observed in the studies where symptom scores often changed during the defined time intervals of observation. Research indicates that the patterns observed in the research may appear related to the susceptibility of the specific bacterial strain. Furthermore, the evidence quality varies across studies, and long-term outcomes following recovery from the initial infection are not fully established.


Research on Systemic Management of H. pylori and MAC

Klabion was evaluated as a component of specific multi-drug regimens in research targeting chronic infections, such as those caused by Helicobacter pylori and Mycobacterium avium complex (MAC).

Studies Focused on Eradication Rates and Symptom Control

For H. pylori, the research primarily examined the microbiological eradication rate—the percentage of patients confirmed to be clear of the bacteria. Data show patterns related to reduced measured clearance in areas where high local resistance was noted alongside the drug.

For MAC, Klabion was evaluated in long-term cohort studies as a key component of combination therapy. Research examined outcomes related to systemic or functional imbalance, such as outcomes related to sustained sputum conversion and monitoring patient-reported outcomes describing perceived discomfort. Evidence is limited for outcomes of Klabion outside of a combination regimen.


Long-Term Research and Extended Follow-up Outcomes

Most studies on Klabion have follow-up durations that were limited to the short period required to track the acute infection. These studies monitored outcomes related to long-term survival, the incidence of major adverse cardiovascular events (MACE), and cerebrovascular events. Findings were mixed across the diverse observational studies. One long-term follow-up study reported a pattern of late outcomes years after the treatment course in specific, higher-risk populations. Research has not established a clear explanation for any delayed pattern.

Key Studies & References

  1. Disseminated Mycobacterium avium Complex: Adult and Adolescent OIs - NIH Clinical Info (Treatment Guidelines)

Frequently Asked Questions (FAQ)

Common questions about Klabion (FAQ)


Q: What is Klabion used for?

A: Klabion is a type of medicine known as a macrolide antibiotic. It is used to manage and treat certain bacterial infections. This may include infections of the skin and respiratory system, such as pneumonia, sinusitis, or pharyngitis/tonsillitis. It is also used in combination with other medicines to treat ulcers caused by Helicobacter pylori bacteria.


Q: Is Klabion effective against the common cold or flu?

A: No. Klabion is specifically intended to fight bacterial infections. Colds and flu are caused by viruses, and antibiotics like Klabion are not indicated for use against viral infections.


Q: Can Klabion be taken with food?

A: Klabion tablets and the oral suspension (liquid) may typically be taken with or without food. However, the extended-release tablet formulation (often designated as 'XL') is generally recommended to be taken with food. It is important to follow the specific instructions provided by your healthcare provider or detailed on the product label for the form of Klabion you are prescribed.


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

A: If a dose is missed, it should generally be taken as soon as you remember. If it is close to the time for the next scheduled dose, the missed dose should be skipped, and the regular schedule should be continued. Do not take two doses at the same time to make up for a missed dose. It is best to discuss a specific plan for missed doses with your prescribing healthcare professional.


Q: What are some common side effects of Klabion?

A: Like many antibiotics, Klabion is associated with certain side effects. Common ones may include:

  • Diarrhea
  • Nausea
  • Vomiting
  • Stomach pain or abdominal discomfort
  • An unusual or unpleasant change in the sense of taste

Contact your healthcare provider if you experience any side effects that are severe or persistent.


Q: What should I know about severe side effects with Klabion?

A: While rare, Klabion may be associated with potentially serious side effects. These can include:

  • Severe allergic reactions (e.g., rash, hives, difficulty breathing)
  • Changes in heart rhythm, such as QT prolongation
  • Liver problems (e.g., yellowing of the skin or eyes, dark urine)
  • Severe diarrhea (which may be a sign of an intestinal infection, even weeks after stopping the medication)

Seek immediate medical attention if you experience symptoms of a severe reaction.

How should Klabion be stored and disposed of?

How to Store and Dispose of Klabion (Clarithromycin)

The official storage conditions for Klabion (Clarithromycin) are defined to maintain product stability and safety, as documented in regulatory labeling.

Storage Requirements

Product Form Temperature Requirement Handling Constraint
Tablets Controlled room temperature (20 C to 25 C) Protect from light and moisture
Oral Suspension (Mixed) 15 C to 30 C Do not freeze or refrigerate

The medication must be kept in the original container and stored out of the sight and reach of children. The reconstituted oral suspension must be discarded after 14 days.

Disposal

Dispose of any unused or expired Klabion in accordance with local regulatory requirements. Consult a healthcare professional or pharmacist for guidance, and do not dispose of the product into wastewater.

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

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