Klamoks-ES

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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 Klamoks-ES

Quick Facts

Property Description
Active ingredient Amoxicillin, Clavulanic Acid
Form Oral Suspension, Tablet
Pharmacological class beta-lactam/beta-lactamase inhibitor combination
Common use Clearing bacterial infections
Origin Semi-synthetic

What Type of Medicine is Klamoks-ES (Co-Amoxiclav)?

Klamoks-ES is a combination prescription antibiotic whose general entity is formally recognized as co-amoxiclav (Amoxicillin and Clavulanic Acid combination). It belongs to the penicillin-like antibiotics class and is classified mechanistically as a beta-lactam/beta-lactamase inhibitor combination. This medication is a semi-synthetic product derived from the core penicillin structure. This combination is used for treating serious bacterial infections globally.

Composition: The Role of Amoxicillin and Clavulanic Acid

The medicine is composed of the active ingredients Amoxicillin Trihydrate and Potassium Clavulanate (Clavulanic Acid), formulated for oral administration and available only by prescription. Amoxicillin functions as the primary antibacterial agent, responsible for killing susceptible bacteria. Clavulanic Acid, in contrast, serves as an enzyme inhibitor. This fixed ratio combination is commonly available as a Dry Powder for Oral Suspension for reconstitution, which often includes flavoring agents to ensure easier administration for pediatric patients, and in various solid Tablet formats.

Why the Combination Matters: General Purpose

The general purpose of this combination product is to provide a treatment for bacterial infections, such as those affecting the ears or respiratory tract. The key benefit stems from Clavulanic Acid protecting Amoxicillin from beta-lactamase enzymes, which are produced by some bacteria to chemically destroy the antibiotic. This protection is a core differentiating feature from Amoxicillin used alone, ensuring the medication's effectiveness is maintained against a broader spectrum of bacterial resistance. The combination strategy expands the utility of penicillin-class antibiotics.

Regulatory References

  1. Amoxicillin Clavulanate - StatPearls - NCBI Bookshelf
  2. Amoxicillin + clavulanic acid - eEML

What side effects are possible with Klamoks-ES?

Possible side effects and safety information

Klamoks-ES (Co-Amoxiclav) safety information is officially classified by regulatory authorities based on the frequency and system-organ class involved. Adverse reactions documented in prescribing information are typically organized into categories, with gastrointestinal effects being the most frequently reported.

Official Frequency Classification

Classification Examples of Adverse Reactions (Label-Documented)
Common Diarrhea, Mucocutaneous candidiasis.
Uncommon Nausea, Vomiting, Dizziness, Headache, increase in hepatic enzymes (AST/ALT), skin rash.
Rare Reversible leukopenia and thrombocytopenia, Convulsions.
Very Rare Severe allergic reactions (Anaphylaxis), Hepatitis, Cholestatic jaundice, Severe Cutaneous Adverse Reactions (SCARs), Antibiotic-associated colitis.

Serious Adverse Reactions and Safety Constraints

The regulatory label documents the risk of serious adverse reactions, including severe hypersensitivity reactions and potentially severe hepatic dysfunction (hepatitis and cholestatic jaundice). These serious events may occur during treatment or may not become apparent until several weeks after treatment cessation.

Safety restrictions prohibit the use of Klamoks-ES in individuals with a known history of severe allergy to any penicillin or a documented history of jaundice or liver impairment associated with prior use of co-amoxiclav. Dose adjustments are explicitly required for patients with documented renal impairment. Caution and monitoring are also noted for use in individuals with hepatic impairment and for older adults, who are a population where hepatic events have been reported predominantly.

Overdose and Emergency Response

Documented Overdose Manifestations

The regulatory documentation for Klamoks-ES (Co-Amoxiclav) overdose describes the potential for specific physiological manifestations and outlines mandated emergency actions. Overexposure may present with gastrointestinal distress, including vomiting and diarrhea, which can lead to disturbances in fluid and electrolyte balance. A key risk documented in labeling is amoxicillin crystalluria, where crystals form in the urine, potentially leading to decreased urinary output and acute renal issues. This risk necessitates maintaining adequate fluid intake during high-dose exposure.

Severe Outcomes and Emergency Actions

A severe and officially noted manifestation of overdose is the occurrence of convulsions (seizures). Regulatory data indicate these convulsions are more likely in patients receiving high doses or those with pre-existing impaired renal function due to reduced clearance of the active components. Because of these documented severe outcomes, regulatory authorities state that immediate medical advice must be sought for any suspected overdose. Emergency medical care is required for severe symptoms such as seizures, severe allergic reactions, or collapse. Treatment for overdose is defined as symptomatic and supportive. The official procedure for enhancing drug elimination is hemodialysis, which is documented to remove both Amoxicillin and Clavulanic Acid from the circulation. Monitoring of renal function and fluid balance is a required component of post-overdose management.

Therapeutic Uses of Klamoks-ES

What Klamoks-ES treats: main uses and benefits

Klamoks-ES is a combination antibiotic used to treat a variety of bacterial infections. It contains two active ingredients: amoxicillin and clavulanic acid. This combination is specifically formulated to overcome resistance that some bacteria develop against standard penicillin-type antibiotics.

Main Therapeutic Uses

This medication is primarily indicated for the treatment of infections caused by susceptible strains of bacteria in the following areas:

  • Upper Respiratory Tract Infections: This includes infections of the ear, nose, and throat, such as recurrent tonsillitis, sinusitis, and otitis media (middle ear infection).
  • Lower Respiratory Tract Infections: It is used for conditions such as acute exacerbations of chronic bronchitis and lobar or bronchopneumonia.
  • Urinary Tract Infections: It may be used to treat bacterial infections affecting the bladder (cystitis) or the kidneys (pyelonephritis).
  • Skin and Soft Tissue Infections: This includes infections such as cellulitis, animal bites, and severe dental abscesses with spreading cellulitis.

Benefits of the Combination Therapy

The presence of clavulanic acid in Klamoks-ES extends the spectrum of amoxicillin. Many bacteria produce enzymes called beta-lactamases that can inactivate amoxicillin before it can act. Clavulanic acid works by blocking these enzymes, allowing the amoxicillin to effectively eliminate the bacteria.

Key benefits of this treatment include:

  • Broad-Spectrum Activity: It is effective against a wide range of both Gram-positive and Gram-negative bacteria.
  • Overcoming Resistance: It provides a therapeutic option for infections that would otherwise be resistant to amoxicillin alone.
  • Targeted Action: By focusing on the bacterial cell wall synthesis, it helps to resolve symptoms of infection by stopping the growth and spread of the pathogen.

Eligibility and Restrictions for Use

Eligibility Scope

Category Eligibility Statement
Populations for whom use is contraindicated Patients with a history of serious hypersensitivity reactions (e.g., anaphylaxis) to penicillins or any other beta-lactam antibacterial drug.
Patients with a previous history of cholestatic jaundice or hepatic dysfunction specifically associated with prior Co-Amoxiclav use.
Populations for whom use is not recommended Patients with suspected or confirmed Infectious Mononucleosis, due to the associated risk of developing a generalized skin rash.
Age-related eligibility rules Adults and Adolescents (ge 40 kg) are generally eligible. Pediatric use is established for patients ge 3 months old, with use in neonates requiring modified regimens.
Condition-specific eligibility rules Use requires caution and monitoring in patients with Hepatic Impairment. Those with Severe Renal Impairment (CrCl < 30 mL/min) must avoid high-strength and extended-release formulations, and dosage modification is necessary.
Pregnancy and lactation eligibility status Pregnancy: Classified as Category B. It should be used during pregnancy only if clearly needed. Lactation: Both components are excreted into breast milk in small amounts, and use requires caution.

Eligibility Classifications (High-Level)

Category Classification Details
Eligibility severity classification Absolute Contraindication (Allergy/Prior Hepatic Dysfunction); Conditional Use/Restriction (Organ Impairment, Life Stage); Avoid Use (Infectious Mononucleosis).
Regulatory basis FDA Prescribing Information, EMA Summary of Product Characteristics (SmPC).
Eligibility-context constraints Eligibility is defined by the patient's medical history (prior drug reaction) and current physiological status (organ function, age group), requiring either exclusion or dose-formulation restriction.

Connection to the overall eligibility profile

Regulatory documents define who can and cannot use this medicine by establishing absolute contraindications tied to a patient's historical allergic response or prior liver injury from the drug. All other population groups are subject to conditional eligibility based on age, organ function, and life stage, which requires either use with caution or avoidance of specific formulations as formally stated in the governmental labeling.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents detail the interaction profile of Klamoks-ES (Amoxicillin and Clavulanic Acid) with various medicines and patient conditions.

Interacting Substance/Condition Officially Documented Interaction Outcome
Probenecid Results in elevated and prolonged concentrations (exposure) of Amoxicillin due to a pharmacokinetic mechanism of reduced renal clearance. Co-administration is generally not recommended by regulatory bodies.
Oral Anticoagulants Pharmacodynamic interaction that may increase the prolongation of Prothrombin Time (PT) and International Normalized Ratio (INR), raising the potential risk of bleeding.
Allopurinol Increases the documented incidence of allergic hypersensitivity reactions, specifically skin rash, associated with Amoxicillin administration.
Oral Contraceptives Co-administration may reduce the efficacy of combined oral estrogen/progestin contraceptives.
Methotrexate Co-administration is associated with an increase in Methotrexate plasma levels, which is the result of altered clearance.
Specific Conditions Use is formally contraindicated in patients with a history of cholestatic jaundice or hepatic dysfunction previously associated with co-amoxiclav use. Patients with severe renal impairment have a documented risk of increased drug exposure.

Connection to the overall interaction profile

Official regulatory documentation defines the product's interaction profile across pharmacokinetic, pharmacodynamic, and administrative contexts. Key documented patterns involve interactions that affect the renal clearance of Amoxicillin and co-administered drugs like Methotrexate, leading to elevated exposure. Furthermore, the label notes specific pharmacodynamic effects on blood coagulation and states that taking the medicine with food may help manage documented gastrointestinal intolerance. This information establishes the formal constraints for co-administration.

Mechanism of Action

How Klamoks-ES Works

The mechanism targets the structural integrity of pathogenic bacteria and neutralizes a key bacterial resistance pathway.

Disrupting the Bacterial Cell Wall (Bactericidal Action)

The primary component, Amoxicillin, targets essential bacterial enzymes called Penicillin-Binding Proteins (PBPs) located on the bacterial cell wall. By irreversibly inhibiting PBP activity, the drug blocks the final stages of peptidoglycan cross-linking, which is crucial for structural integrity. This mechanism causes the cell wall to fail and leads to osmotic instability and rapid cell lysis (death), a direct bactericidal effect resulting in the rapid structural failure and death of the organism.

Neutralizing Enzymatic Resistance (Synergistic Protection)

The second component, Clavulanic Acid, exerts its effect by targeting the bacterial defense mechanism. It acts as a mechanism-based inhibitor that permanently binds to and deactivates most clinically relevant β-Lactamase enzymes, which are typically produced by resistant bacteria to chemically destroy Amoxicillin. This neutralization step functionally protects Amoxicillin, restoring its intrinsic bactericidal activity against enzyme-producing organisms.

Mechanistic Limitations

The bactericidal effect is reliant on the bacteria being actively growing and possessing a susceptible PBP structure. The mechanism is constrained by bacterial resistance not involving β-lactamase production (e.g., altered PBP targets) or by the presence of β-lactamases that are not susceptible to inhibition by Clavulanic Acid.

Dosage and Administration Information

Official Administration Guidelines

Klamoks-ES (co-amoxiclav) is administered through oral routes, available as film-coated tablets and reconstituted dry powder for oral suspension. The medication is also available in a powder for solution for intravenous infusion for initial use in certain clinical settings. Standard oral dosing, which is calculated based on the amoxicillin component, typically follows a schedule of either every 12 hours or every 8 hours, depending on the prescribed strength and the clinical context.

A central administration principle established in official labeling is the instruction to take the medicine at the start of a meal. This practice helps minimize potential gastrointestinal intolerance and supports the proper absorption of the clavulanic acid component.

Treatment courses generally range from 7 to 10 days, and official guidance stipulates that therapy should not be extended beyond 14 days without careful review.

The use of this medicine requires specific procedural adherence based on the formulation. For example, the oral suspension must be reconstituted with water before dispensing and requires shaking before each use. Furthermore, extended-release tablets must be swallowed whole and must not be crushed.

For certain populations, adjustments to the standard regimen are mandatory. Dosing for pediatric patients is determined by body weight (mg/kg/day), and a reduction in dose or frequency is necessary for individuals with severe renal impairment to ensure appropriate therapeutic use.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Summary of Clinical Research

This section summarizes the findings from studies that evaluated the clinical outcomes of [Drug X] concerning pain and chronic inflammation.

Randomized Controlled Trials (RCTs) explored whether participants receiving [Drug X] reported changes in joint pain over a 12-week period. These studies used standardized pain scales (e.g., VAS) to measure subjective patient-reported outcomes. The initial change was often observed within the first week of administration.

A study of 500 participants examined the relationship between [Drug X] use and a reduction in C-reactive protein (CRP) levels. This research focused on secondary outcomes such as biomarkers.


Dose and Safety Considerations

  • Dosing: In the studies, lower doses were often used at the beginning of the treatment period. The doses evaluated ranged from a lower to a higher daily amount.
  • Safety Profile: Adverse events reported during the trials included headache, nausea, and minor gastrointestinal discomfort.
  • Special Populations: Studies examining [Drug X] in participants with severe liver impairment were limited due to concerns about potential for accumulation.

Comparative Studies

In a head-to-head trial, participants receiving [Drug X] were compared with those on placebo and those receiving [Competitor Drug Y]. Safety profiles for both treatments were examined.

Studies examined whether participants receiving the drug demonstrated changes in inflammation markers after 4 weeks of therapy. Long-term use of [Drug X] was explored in certain studies, which often included periodic blood monitoring.

Key Studies & References

  1. NICE Guideline NG149: Chronic pain (primary and secondary) in over 16s: assessment of all chronic pain and management of chronic primary pain
  2. World Health Organization (WHO) Model List of Essential Medicines

Frequently Asked Questions (FAQ)

Common questions about Klamoks-ES (FAQ)

Q: Why is the 'ES' added to the name Klamoks-ES?

The letters 'ES' typically stand for a specific, higher strength formulation of the medicine, such as the 600 mg/42.9 mg per 5 mL ratio. This formulation is generally utilized for the treatment of infections where a higher concentration of the amoxicillin component is indicated, often for specific patient groups.


Q: Is Klamoks-ES known to interact with common pain relievers like ibuprofen?

The official product information may not specifically name ibuprofen in the drug interaction tables. However, regulatory documents caution about interactions with other medications like oral anticoagulants (blood thinners), as certain pain relievers can potentially increase the risk of bleeding. Regulatory authorities advise disclosing all medications, including non-prescription ones, to a healthcare provider.


Q: Are there any specific foods or drinks that should be avoided with Klamoks-ES?

Regulatory guidance focuses on how the medication should be taken: it is recommended to take this medicine at the start of a meal to enhance absorption and minimize stomach upset. Official documents do not list specific foods to avoid, but some sources suggest that avoiding high-fat meals may help prevent a reduction in the absorption of one of the active components.


Q: What is the difference between Klamoks-ES and regular Klamoks?

The primary difference lies in the concentration and ratio of the active ingredients, amoxicillin and clavulanate. Klamoks-ES is a specific formulation (e.g., Extra Strength) intended to deliver a higher dose of amoxicillin. These distinct formulations are used to effectively treat infections caused by specific types of bacteria.


Q: Can older adults use Klamoks-ES safely?

Official guidance indicates that use in older adults is possible, but caution and monitoring are advised. This is partly because hepatic events (liver problems) have been reported more frequently in this patient population. Dose adjustments may also be necessary for older adults who have kidney impairment.


Q: Is it possible to become resistant to Klamoks-ES over time?

Official labeling emphasizes that antibiotics like Klamoks-ES should only be used to treat infections caused by susceptible bacteria. This practice is undertaken to help mitigate the development of drug-resistant bacteria and to ensure that the medicine remains effective when it is truly needed for treatment.


Q: What should I do if I forget a dose of Klamoks-ES?

Patient information typically advises to take the forgotten dose as soon as you remember. However, if it is nearly time for your next scheduled dose, you should skip the missed dose and continue with your regular schedule. Patient information generally suggests skipping the missed dose and continuing with the regular schedule. It is generally advised not to take two doses at the same time to make up for a missed one.


Q: Can I stop taking Klamoks-ES as soon as I feel better?

Official guidance emphasizes that the medicine is intended to be used for the full prescribed length of time. Even if symptoms rapidly improve, stopping early can lead to the infection recurring and may contribute to the development of drug-resistant bacteria, making the infection harder to treat in the future.


Q: Are there research studies showing how Klamoks-ES works against certain infections?

Yes, the official drug label provides summaries of clinical studies that established the drug's effectiveness. These studies demonstrated that the medicine achieved specific clinical and microbiological success rates for the bacterial infections it is indicated to treat, such as certain respiratory or skin infections.


Q: Where can I find reliable, official information about Klamoks-ES?

The most reliable and comprehensive information comes directly from national regulatory bodies. You can find this in the Prescribing Information (or drug label) published by agencies like the U.S. FDA (DailyMed) or the European Medicines Agency (Summary of Product Characteristics or SmPC).


Q: Do people with liver problems need to adjust their use of Klamoks-ES?

Official labeling advises that people with hepatic impairment (liver problems) should use this medicine with caution. Official labeling advises that liver function should be monitored at regular intervals during therapy, and dose adjustment may be necessary in certain cases.


Q: Does Klamoks-ES make you feel tired or dizzy?

Official product information lists dizziness as an uncommon side effect of the medicine. While tiredness is not specifically listed as a common side effect, official warnings note that extreme fatigue can be a symptom accompanying a rare but serious side effect, such as liver injury, which requires immediate attention.


Q: What ingredients are in Klamoks-ES besides the main active component?

In addition to the active antibacterial component (amoxicillin) and the enzyme inhibitor (clavulanate potassium), formulations contain various inactive ingredients (excipients). Depending on the form (liquid or tablet), these may include flavors, sweeteners like aspartame, coloring agents, or stabilizers. A complete list is detailed in the official prescribing information.


Q: Why do official documents mention 'superinfection' when discussing Klamoks-ES?

Official warnings mention superinfection (a new infection, often fungal or by non-susceptible bacteria) because using antibiotics can sometimes disrupt the balance of normal, beneficial bacteria in the body. This disruption may allow other harmful organisms to overgrow, potentially leading to a secondary infection.


Q: Can Klamoks-ES interact with herbal supplements?

The regulatory label primarily lists interactions with specific prescription drugs and conditions. However, patient safety requires that all individuals inform their healthcare provider of all products they use, including herbal products and dietary supplements, as these can affect how the medicine is absorbed or broken down by the body.


Q: Is there a generic version of Klamoks-ES available?

Klamoks-ES is a brand name. Generic versions of the active drug combination, amoxicillin and clavulanate potassium, are widely available and approved by regulatory bodies, provided they meet the same standards for bioequivalence.


Q: Does Klamoks-ES have any interaction with alcohol consumption?

The official label may advise caution regarding alcohol use or state that alcohol consumption should be discussed with a healthcare professional. Taking alcohol with some medicines can increase the risk of certain side effects, such as stomach upset, or interfere with recovery from the underlying illness.


Q: What should be done if an allergic reaction to Klamoks-ES is suspected?

If signs of a serious hypersensitivity reaction occur (such as hives, swelling of the throat, or difficult breathing), regulatory information states that the medicine should be discontinued immediately, and appropriate emergency medical treatment should be sought.


Q: Do official labels describe any effects of Klamoks-ES on blood sugar levels?

While the medicine is not primarily noted for affecting blood sugar directly, the amoxicillin component can cause false-positive results when certain non-enzymatic methods (like the Clinitest®) are used for testing glucose in the urine. Alternative testing methods, such as enzymatic glucose oxidase methods (like Clinistix®), are advised to ensure accurate monitoring.


Q: Is Klamoks-ES listed as a controlled substance?

No, the medicine is generally not listed as a controlled substance by regulatory bodies like the U.S. Drug Enforcement Administration (DEA) or equivalent global authorities.


Q: What does the research say about the effectiveness of Klamoks-ES?

Official regulatory documents summarize the clinical studies that demonstrated the drug's effectiveness. This evidence shows that the medicine is capable of achieving clinical and microbiological success rates in treating the specific bacterial infections for which it is indicated.


Q: Does Klamoks-ES have a warning about driving or operating machinery?

Official warnings state that since side effects like dizziness and convulsions (seizures) have been reported, patients are cautioned to be aware when driving or operating machinery until they understand how the medicine personally affects them.


Q: What is the half-life of Klamoks-ES?

The half-life is the time it takes for half of the drug to be eliminated from the body. Regulatory documents indicate that the half-life for both amoxicillin and clavulanate in healthy adults is relatively short, typically around one to one and a half hours. This duration is longer for patients with severe kidney impairment.


Q: What kind of eye-related side effects, if any, are mentioned for Klamoks-ES?

While direct eye-related side effects are not among the most common, official documents note that severe, though rare, allergic reactions (such as certain skin syndromes) can potentially involve symptoms like burning eyes or other serious visual disturbances. Any such symptoms would require immediate medical attention.


Q: Why is it important to complete the entire course of Klamoks-ES?

The primary reason for completing the entire prescribed course is to ensure the complete elimination of the harmful bacteria causing the infection. This practice is vital for ensuring the complete elimination of bacteria and for helping to prevent the emergence of drug-resistant bacteria, which could make future infections more difficult to treat.


Q: What does 'broad-spectrum' mean in the context of Klamoks-ES?

Official labeling defines this medicine as broad-spectrum, meaning it is effective against a wide variety of bacteria. Specifically, the combination of amoxicillin and clavulanate works against both Gram-positive and Gram-negative organisms, including many that have developed defense mechanisms against standard penicillin-class drugs.


Q: Are psychological side effects like anxiety or confusion linked to Klamoks-ES?

Official safety information reports that nervous system side effects such as confusion and, occasionally, anxiety have been reported, although they are uncommon or rare occurrences. Other serious, though rare, central nervous system effects include seizures.

How should Klamoks-ES be stored and disposed of?

The storage and disposal instructions for Klamoks-ES (amoxicillin and clavulanate potassium for oral suspension) are strictly defined by regulatory labeling based on the product’s form.


Storage Requirements

Product Form Temperature Range Stability Period
Dry Powder (Unreconstituted) Store at or below 25 C (77 F) Until printed expiry date
Liquid Suspension (Reconstituted) Must be refrigerated (2 C to 8 C) 10 days (must be discarded after)

The dry powder must be protected from moisture and kept in its tightly closed, original container. The liquid suspension must not be frozen. All forms of the medication must be stored out of the sight and reach of children.

Disposal: Unused or expired medication must be discarded. Official guidance mandates that this medicine must not be disposed of via household wastewater (such as flushing down a toilet or sink).

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

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