Clavoxin

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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 Clavoxin

Quick Facts

Property Description
Active Ingredients Amoxicillin and Clavulanic acid
Forms Film-coated tablets, Oral suspension, Intravenous powder
Pharmacological Class Antibiotic (Penicillin class, beta-Lactam)
Common Purpose Treatment of bacterial infections
Origin Synthetic and semi-synthetic derivatives

What is Clavoxin? Defining the Combination Antibiotic

Clavoxin is classified as a combination broad-spectrum antibiotic used to combat a wide variety of bacterial infections. This Prescription-only medicine is defined by its core active ingredients, Amoxicillin and Clavulanic acid, and belongs to the Penicillin class of anti-infective agents. The drug's fundamental purpose is to exert a direct bactericidal effect, which means it actively destroys susceptible bacteria.

The medicine is clinically recognized for its essential role in treating infections where bacterial resistance is a concern. The combination of Amoxicillin and Clavulanic acid is an effective treatment for infections caused by beta-lactamase-producing organisms, which are often resistant to Amoxicillin alone. This means the medicine is specifically designed to work against stronger bacteria that have developed defenses against older antibiotics.

Why Does Clavoxin Have Two Active Ingredients?

The Clavoxin formulation includes two distinct components to create a powerful synergistic effect that overcomes common bacterial defense mechanisms. Amoxicillin functions by inhibiting bacterial cell wall synthesis, causing the bacteria to die. The co-administered Clavulanic acid acts as a beta-Lactamase inhibitor, protecting the primary drug.

Clavulanic acid is crucial because many bacteria produce beta-Lactamase enzymes that inactivate Amoxicillin. By neutralizing these enzymes, Clavulanic acid shields the primary drug, ensuring its potency and extending the medicine's ability to successfully fight resistant strains. Clavulanic acid restores the antibacterial activity of Amoxicillin against many beta-lactamase-producing strains. This fact demonstrates that the two components work together to enhance the medicine's overall power.

The medicine is supplied in oral forms, such as Film-coated tablets and Oral suspension powder, the latter often prepared with specific flavoring to enhance acceptance for pediatric patient groups. It is also available as a powder for Intravenous use, allowing for flexible administration based on patient needs.

Regulatory References

  1. NIH MedlinePlus Drug Information on Amoxicillin and Clavulanic Acid

What side effects are possible with Clavoxin?

Possible Side Effects and Safety Information

The safety profile for Clavoxin (amoxicillin and clavulanate potassium) is primarily structured around the frequency of adverse reactions, the potential for serious complications, and restrictions for specific patient groups.

Adverse Reactions

Adverse reactions are classified by the involved system-organ class, with gastrointestinal disorders being the most commonly reported. Reactions are formally classified by frequency in regulatory documents:

Frequency Classification Examples of Reactions
Very Common (ge 1/10) Diarrhoea
Common (ge 1/100 to < 1/10) Nausea, Vomiting, Candidiasis (mucocutaneous)
Uncommon (ge 1/1,000 to < 1/100) Dizziness, Headache, Indigestion, Skin Rash, Urticaria
Rare (ge 1/10,000 to < 1/1,000) Reversible leucopenia/neutropenia, Thrombocytopenia, Erythema multiforme
Very Rare (< 1/10,000) Anaphylaxis, Hepatitis, Colitis, Stevens-Johnson Syndrome

Serious and Clinically Significant Risks

Regulatory warnings highlight the risk of serious hypersensitivity reactions (including anaphylaxis and angioedema), which are rare but potentially fatal. Hepatic (liver) dysfunction, which may manifest as hepatitis or cholestatic jaundice, is a known risk. This liver injury can sometimes appear during or shortly after discontinuing treatment. Severe diarrhea caused by Clostridioides difficile (C. difficile-associated colitis) is also documented as a serious potential complication.

Safety Restrictions and Populations

Clavoxin is formally contraindicated in patients with a known history of severe hypersensitivity to any beta-lactam agent (e.g., penicillins, cephalosporins) and in patients with a history of amoxicillin/clavulanic acid-associated jaundice or liver dysfunction. Caution and dose adjustment are required for patients with severe renal impairment. The medicine is also contraindicated for use in patients with infectious mononucleosis due to a documented high risk of non-allergic skin rash.

Overdose and Emergency Response

Overdose and When to Seek Help

Officially documented manifestations of Clavoxin overdosage frequently involve the gastrointestinal system, presenting with stomach pain, vomiting, and diarrhea. A serious concern detailed in regulatory documents is the risk of amoxicillin crystalluria, which has been reported in both adult and pediatric patients. This condition can lead to greatly decreased urination or oliguria and, in isolated cases, subsequent renal failure.

Neurological effects, including convulsions or seizures, are also documented, primarily in patients with impaired renal function due to reduced clearance of the active ingredients.


The mandated action for a suspected overdose is the discontinuation of the medicine. Management is required to be symptomatic and supportive, as no specific antidote is known. Urgent medical attention must be sought immediately for severe manifestations, such as seizures, collapse, difficulty breathing, or clinical signs of oliguria. Procedures described in the official guidance for managing high systemic concentrations include maintaining adequate fluid intake to promote diuresis and using hemodialysis to remove both amoxicillin and clavulanic acid in severe cases.

Therapeutic Uses of Clavoxin

What Clavoxin Treats: Main Uses and Benefits

Clavoxin is commonly used across conditions characterized by periods of heightened symptoms and is relevant in contexts involving heightened systemic burden. Its therapeutic role is relevant for easing the symptom burden in clinical domains where bacterial infections create noticeable physiological strain.

The medication is commonly used across conditions presenting with acute episodes, such as those seen in community-acquired pneumonia, acute exacerbations of bronchitis, sinusitis, otitis media, and certain infections of the skin and urinary tract. It is used for managing symptom clusters like high fever, persistent cough, and localized pain. This approach may be part of symptomatic management that supports patient comfort during periods of heightened symptoms.


Quick Fact: Symptom Management Focus

Property Description
Symptom Focus Fever, localized pain, inflammation, functional strain
Typical Context Acute bacterial episodes, suspected resistance
Patient Benefit Helps maintain stability, contributes to easing overall symptom burden

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Clavoxin is subject to specific regulatory eligibility rules that define its permitted and restricted use populations, as documented in official government prescribing information.

Absolute Non-Eligibility (Contraindications)

Use of Clavoxin is strictly prohibited for patients with a documented history of serious hypersensitivity reactions (e.g., anaphylaxis) to any beta-lactam antibiotic (including penicillins and cephalosporins). It is also contraindicated for individuals who have previously experienced cholestatic jaundice or hepatic dysfunction specifically linked to prior Amoxicillin/Clavulanate use.

Conditional Use and Restrictions

  • Organ Function: Patients with severe renal impairment (creatinine clearance < 30 mL/min) or those on hemodialysis require mandatory dose adjustment, and certain high-strength formulations may be contraindicated. Use in patients with existing hepatic impairment requires caution and regular monitoring of liver function.
  • Comorbidities: The medicine must be avoided in patients with Infectious Mononucleosis due to the associated risk of developing a severe rash. Certain oral suspensions and chewable tablets containing aspartame must also be avoided by patients with Phenylketonuria (PKU).
  • Age Thresholds: Use is highly restricted in infants under three months, and specific film-coated tablets are not recommended for children weighing less than 40 kg.
  • Reproductive Status: Use during pregnancy and lactation requires a formal risk-benefit assessment by a prescriber, as the active components are known to be excreted in breast milk.

What should I know about interactions with other medicines?

The official regulatory documentation for Clavoxin defines several interactions that necessitate restrictions or monitoring. These statements are categorized by their nature—pharmacokinetic (PK) interference, pharmacodynamic (PD) effects, and bioavailability constraints.

Documented Interactions and Regulatory Constraints

A regulatory restriction applies to the co-administration of Probenecid, which is formally not recommended. This is a PK interaction where Probenecid decreases the renal tubular secretion of the amoxicillin component, resulting in increased and prolonged blood concentrations of amoxicillin.

Pharmacodynamic interactions include:

  • Oral Anticoagulants: Concomitant use may increase the prolongation of prothrombin time (INR), an effect requiring monitoring.
  • Allopurinol: Co-administration officially increases the incidence of skin rashes.
  • Combined Oral Contraceptives: Use may reduce the efficacy of the contraceptive, as noted in regulatory labeling.

Administration and Population Notes

Administration is officially advised at the start of a meal. This timing requirement is documented to enhance the absorption of the clavulanate component, which is a bioavailability consideration. A population-specific restriction notes that use must be avoided in individuals with Infectious Mononucleosis due to an increased risk of developing a distinct skin rash.

Mechanism of Action

Clavoxin is a co-formulation consisting of amoxicillin and clavulanic acid. The two components exert distinct, yet complementary, pharmacodynamic actions on the targeted bacterial cells.

Amoxicillin, a beta-lactam antibiotic, functions by covalently binding to Penicillin-Binding Proteins (PBPs), which are transpeptidases essential for constructing the bacterial cell wall's peptidoglycan layer. This interaction inhibits the polymerization and cross-linking steps of peptidoglycan synthesis, triggering bacterial cell lysis.

Clavulanic acid, a beta-lactamase inhibitor, acts as a suicide substrate for beta-lactamase enzymes produced by certain bacteria. It binds irreversibly to the active site of these enzymes, forming a stable, non-hydrolyzable acylated intermediate. This mechanism permanently deactivates the beta-lactamase, preventing the hydrolysis and inactivation of amoxicillin. By protecting amoxicillin from enzymatic degradation, clavulanic acid effectively extends the cellular process disruption initiated by amoxicillin to a broader range of bacterial strains.

Dosage and Administration Information

Clavoxin (Amoxicillin and Clavulanic acid) is administered via two routes: the primary oral route for tablets and suspension, and the intravenous (IV) route for more severe or initial treatments.


Standard Dosing and Administration

The medicine is prescribed for twice-daily (q12hr) or three-times-daily (q8hr) administration, depending on the specific formulation ratio selected. Adult dosing typically involves one 875 mg/125 mg tablet twice a day, or one 500 mg/125 mg tablet three times a day. For certain severe infections, an extended-release (XR) dose of 2000 mg/125 mg twice a day may be utilized. Treatment duration is generally 7 to 14 days and should not be extended beyond 14 days without further clinical review.


Conditions for Proper Use

A key administration instruction is to take the medicine at the start of a meal. This practice is intended to minimize potential gastrointestinal intolerance and ensure optimal absorption of the clavulanic acid component. Different strengths and physical forms are not substitutable on a milligram-for-milligram basis due to varying Amoxicillin to Clavulanic acid ratios.

For specialized forms, instructions dictate that extended-release tablets must be swallowed whole and may not be chewed, crushed, or broken. Oral suspension powder requires specific reconstitution with water and must be shaken vigorously before each use.


Population-Specific Rules

Dose adjustment is required for adults with severe renal impairment (Creatinine Clearance le 30 mL/min). Specific regimens are outlined for such patients, and the 875 mg/125 mg formulation is generally not recommended in this group. For children weighing less than 40 kg, the dose is calculated based on body weight.

Recent Clinical Evidence

Recent Clinical Evidence Overview

Clavoxin, a combination of amoxicillin and clavulanic acid, is an antibiotic therapy studied for a range of bacterial infections, particularly those caused by beta-lactamase–producing bacteria. Clavulanic acid's role is primarily to protect amoxicillin from degradation by these enzymes, thereby expanding the spectrum of activity.

Efficacy in Common Infections

Clinical trials and practice guidelines support the evaluation of this combination for infections such as acute bacterial rhinosinusitis, acute otitis media, community-acquired pneumonia (CAP), and certain skin and soft tissue infections.

  • Acute Bacterial Rhinosinusitis: Professional guidelines often recommend the amoxicillin/clavulanic acid combination over amoxicillin alone as an initial treatment approach.
  • Community-Acquired Pneumonia (CAP): While the combination is a standard treatment option for CAP, a recent Cochrane review indicated that current evidence from randomized controlled trials is insufficient to make definitive, evidence-based recommendations regarding its superiority over amoxicillin monotherapy for hospital-treated patients aged 65 or older.

Specialized Efficacy Data

Research has explored the combination's use in more specific conditions. Studies have suggested an approximate 50% clinical recovery rate when the combination is used to address small intestinal bacterial overgrowth (SIBO), though this remains an off-label indication.

Safety and Tolerability

Adverse Events: Clinical data indicates that the combination is generally well-tolerated. The most frequently reported adverse events in trials are gastrointestinal symptoms, including nausea, vomiting, and diarrhea. The addition of clavulanic acid may be associated with a higher incidence of diarrhea compared to amoxicillin alone. There are also reports of rare idiosyncratic drug-induced hepatic injury, which necessitates caution in patients with pre-existing hepatic impairment.

Frequently Asked Questions (FAQ)

Common questions about Clavoxin (FAQ)


Q: How quickly does Clavoxin start working?

A: Official regulatory documents do not specify a precise time frame for when a patient should expect to feel better after beginning treatment. Clinical studies, however, evaluate the drug's effectiveness based on overall recovery and improvement observed after several days of treatment.


Q: What's the difference between Clavoxin and Augmentin?

A: Clavoxin (Amoxicillin and Clavulanate potassium) is the generic, non-proprietary name for this combination drug. Augmentin is a registered trade name used by a specific manufacturer for a product containing the exact same active ingredients: Amoxicillin and Clavulanate potassium.


Q: Does Clavoxin interact with birth control pills?

A: Yes. Official labeling advises that using this medicine alongside combined oral contraceptives (birth control pills) may potentially reduce the efficacy of the contraceptive. Patients should be aware of this potential interaction and may wish to discuss contraceptive options with a healthcare professional.


Q: Can children take Clavoxin?

A: Yes, Clavoxin is commonly prescribed for children to treat susceptible bacterial infections. According to official product information, dosing is calculated based on a child's body weight for those under 40 kg. The medicine has specific restrictions or is not recommended for infants under three months of age and for certain high-strength formulations.


Q: Can I drink alcohol in moderation while taking Clavoxin?

A: Regulatory documents do not list a specific drug interaction between alcohol and Clavoxin. However, given the potential for common side effects like dizziness and hepatic reactions, patients should consult their healthcare provider regarding alcohol consumption.


Q: What kind of infections are most sensitive to Clavoxin?

A: Clavoxin is specifically designed to be effective against susceptible bacterial infections, especially those that produce beta-lactamase enzymes. This unique action helps extend its activity to bacteria that are often resistant to amoxicillin alone.


Q: What percentage of people experience side effects from Clavoxin?

A: Official information classifies the frequency of reported side effects using medical terms. For example, 'Very Common' means an adverse reaction is reported by 1 in 10 people. 'Common' means it is seen in 1 in 100 to < 1 in 10 people.


Q: Does Clavoxin affect liver function tests?

A: Official warnings note a known, though rare, risk of temporary liver dysfunction or injury. This known potential for liver-related issues is why healthcare providers may choose to monitor liver function tests (LFTs) in certain patients.


Q: How long does Clavoxin stay in your system after you stop taking it?

A: Regulatory documents state that the active components have a relatively short half-life of approximately one hour. Based on this information, the active components are expected to be mostly eliminated from the body within several hours.


Q: Can taking Clavoxin mess up my gut flora?

A: Yes. Antibiotics generally target and reduce susceptible bacteria throughout the body. Regulatory documents list common side effects such as diarrhea and candidiasis (yeast infections), which are clinical signs that the medication is affecting the natural bacterial balance (flora) in the body.


Q: What is the difference between Clavoxin tablets and suspension?

A: Tablets and suspension (liquid) differ in physical form, dosing ratio, and storage requirements. Official regulatory documents state that the different strengths and forms are not substitutable on a milligram-for-milligram basis. The suspension form typically requires specific reconstitution and refrigeration.


Q: Is Clavoxin the same as Amoxicillin?

A: No, Clavoxin is not the same as Amoxicillin alone. Clavoxin is a combination antibiotic that includes two active ingredients: Amoxicillin and Clavulanic acid. The combination allows the medicine to treat a broader range of resistant bacteria than Amoxicillin can on its own.


Q: How does Clavoxin actually kill bacteria?

A: Clavoxin works via a two-part mechanism. The Amoxicillin component kills the bacteria by destroying their cell wall, while the Clavulanic acid component acts as a shield, protecting the Amoxicillin from being inactivated by the bacteria's defense enzymes.


Q: Is it normal to feel tired while taking Clavoxin?

A: Fatigue or general tiredness is not listed as a common side effect in official documents. However, the regulatory label does list central nervous system (CNS) effects, such as dizziness and headaches, which may potentially contribute to a feeling of being unwell or tired.


Q: Can Clavoxin be used to treat viral infections?

A: No. Clavoxin is an antibiotic, and like all antibiotics, it is designed only to target and kill susceptible bacterial infections. It is not effective against viruses, such as those that cause the common cold or flu.


Q: Are there any common supplements that interact with Clavoxin?

A: Regulatory documents list interactions with certain prescription drugs (such as probenecid and oral anticoagulants) that can affect Clavoxin's action or increase side effects. However, official drug labels generally do not provide a comprehensive list of all potential interactions with common dietary supplements.


Q: Why do doctors often prescribe Clavoxin instead of just amoxicillin?

A: The combination is typically prescribed when a healthcare provider suspects or confirms that the infection is caused by bacteria that have developed defenses (like beta-lactamase enzymes) against Amoxicillin alone. The addition of Clavulanic acid ensures the drug remains potent and effective against these resistant strains.


Q: Does Clavoxin affect sleep?

A: Official documents list certain effects on the central nervous system, which may potentially interfere with normal sleep patterns. However, insomnia or other severe sleep disturbances are not listed as common side effects.


Q: Can Clavoxin be used to treat bronchitis?

A: Yes. According to official therapeutic indications, Clavoxin is used for the treatment of acute bacterial exacerbations of chronic bronchitis, provided the infection is caused by susceptible bacteria.


Q: Can Clavoxin cause headaches?

A: Yes, regulatory documents list headaches as an uncommon side effect. This means it may affect between 1 in 1,000 to < 1 in 100 people who take the medication.


Q: Does Clavoxin cause yeast infections?

A: Yes. Mucocutaneous candidiasis (the medical term for a yeast infection) is listed as a common side effect in official regulatory documents, meaning it may affect 1 in 100 to < 1 in 10 people.


Q: Are there restrictions on driving while taking Clavoxin?

A: Official product information notes that the medication may cause side effects like dizziness, which could potentially impair the ability to drive or operate machinery. Because of these potential effects, it is recommended to discuss driving and operating machinery with a healthcare provider.


Q: Can Clavoxin be used for skin infections?

A: Yes. Clavoxin is indicated in regulatory documents for the treatment of skin and skin structure infections when those infections are confirmed to be caused by susceptible strains of bacteria.

How should Clavoxin be stored and disposed of?

How to Store and Dispose of Clavoxin (Amoxicillin and Clavulanate Potassium)

Storage requirements for Clavoxin vary significantly between the dry and liquid forms. Official regulations mandate specific temperature, container, and stability conditions.

Official Storage Requirements

Detail Requirement
Tablets/Dry Powder Store at controlled room temperature (20 C to 25 C), protected from moisture, and kept in the tightly closed original container.
Reconstituted Suspension Must be stored under refrigeration (2 C to 8 C) and must not be frozen.
In-Use Stability The refrigerated liquid suspension must be discarded after 10 days.

Child Safety and Disposal

All forms of the medicine must be kept out of the sight and reach of children.

Unused or expired product should be disposed of via an authorized drug take-back program. If a take-back program is unavailable, the official method is to mix the medicine with an undesirable substance (like coffee grounds) and place it in a sealed container before disposal in household trash.

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

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