Amox-Clav ES 600mg/5ml Susp 125ml

Manufacturer WEST-WARD Active Ingredient Amoxicillin and Clavulanate Oral Suspension (ES-600)(a moks i SIL in & klav yoo LAN ate) Pronunciation a-moks-i-SIL-in & klav-yoo-LAN-ate
It is used to treat ear infections.
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Drug Class
Antibiotic, Beta-lactamase Inhibitor Combination
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Pharmacologic Class
Penicillin Antibiotic; Beta-lactamase Inhibitor
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Pregnancy Category
Category B
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FDA Approved
Apr 1999
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

This medicine is an antibiotic that combines two drugs: amoxicillin and clavulanate. Amoxicillin kills bacteria by stopping them from building their cell walls. Clavulanate helps amoxicillin work better by blocking certain enzymes (beta-lactamases) that some bacteria make to destroy amoxicillin. This combination is used to treat bacterial infections, especially those in the ears (otitis media) and sinuses (sinusitis) in children.
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How to Use This Medicine

Taking This Medication

To ensure your child gets the most benefit from this medication, follow the doctor's instructions carefully. Read all the information provided and follow the instructions precisely.

To minimize the risk of an upset stomach and maximize the medication's effectiveness, give it to your child at the beginning of a meal. Before administering, shake the medication well. For liquid doses, measure carefully using the device provided with the medication. If no device is included, ask your pharmacist for a suitable measuring tool.

Continue giving your child this medication as directed by their doctor or healthcare provider, even if they seem to be feeling well.

Storing and Disposing of This Medication

Store the liquid suspension in the refrigerator, but do not freeze it. Discard any unused portion after 10 days. It's normal for some products to undergo a color change during storage, but if you're unsure, consult your pharmacist.

Keep all medications in a secure location, out of the reach of children and pets.

What to Do If a Dose Is Missed

If you miss giving your child a dose, administer it as soon as you remember. However, if it's close to the time for the next scheduled dose, skip the missed dose and resume the regular dosing schedule. Avoid giving two doses at the same time or providing extra doses.
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Lifestyle & Tips

  • Take with food or milk to reduce stomach upset.
  • Shake the suspension well before each use.
  • Use the provided measuring device (spoon or syringe) for accurate dosing.
  • Complete the entire course of medication, even if symptoms improve, to prevent antibiotic resistance and ensure the infection is fully treated.
  • Store the reconstituted suspension in the refrigerator and discard any unused portion after 10 days.

Dosing & Administration

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Adult Dosing

Standard Dose: Not recommended for standard adult use; specific ES-600 formulation is primarily for pediatric use. Adult formulations (e.g., 875mg/125mg) are available.

Condition-Specific Dosing:

Note: Adults typically use different amoxicillin/clavulanate formulations (e.g., 875mg/125mg or 500mg/125mg) for appropriate indications.
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Pediatric Dosing

Neonatal: Not established
Infant: For Acute Otitis Media (AOM) and Acute Bacterial Sinusitis (ABS) in infants â‰Ĩ 3 months: 90 mg/kg/day (based on amoxicillin component) in two divided doses every 12 hours for 10 days. Max dose: 600 mg amoxicillin per dose.
Child: For Acute Otitis Media (AOM) and Acute Bacterial Sinusitis (ABS) in children: 90 mg/kg/day (based on amoxicillin component) in two divided doses every 12 hours for 10 days. Max dose: 600 mg amoxicillin per dose.
Adolescent: Dosing typically follows pediatric guidelines based on weight for AOM/ABS. For other infections, may transition to adult formulations if weight appropriate.
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Dose Adjustments

Renal Impairment:

Mild: CrCl > 30 mL/min: No dosage adjustment needed.
Moderate: CrCl 10-30 mL/min: 600 mg/42.9 mg every 12 hours (for standard formulations, ES-600 specific guidance may vary, but generally not recommended for severe impairment). For standard formulations, 250-500 mg every 12 hours.
Severe: CrCl < 10 mL/min: Not recommended for ES-600. For standard formulations, 250-500 mg every 24 hours.
Dialysis: Hemodialysis: Administer 250-500 mg every 24 hours, with an additional dose during and at the end of dialysis. Peritoneal Dialysis: Not well studied, generally avoid or use with extreme caution.

Hepatic Impairment:

Mild: Use with caution; monitor liver function.
Moderate: Use with caution; monitor liver function. Dosage adjustment not specifically defined but close monitoring is crucial.
Severe: Use with caution; monitor liver function. Dosage adjustment not specifically defined but close monitoring is crucial.

Pharmacology

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Mechanism of Action

Amoxicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to bacterial lysis. Clavulanate is a beta-lactamase inhibitor that irreversibly binds to and inactivates a wide range of beta-lactamase enzymes produced by many Gram-positive and Gram-negative bacteria, thereby protecting amoxicillin from degradation and extending its antibacterial spectrum.
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Pharmacokinetics

Absorption:

Bioavailability: Amoxicillin: 70-90%; Clavulanate: 60-75%
Tmax: Amoxicillin: 1-2 hours; Clavulanate: 1-2 hours
FoodEffect: Absorption of clavulanate is enhanced when taken with food, particularly a high-fat meal. Amoxicillin absorption is not significantly affected by food. Taking with food helps minimize gastrointestinal upset.

Distribution:

Vd: Amoxicillin: 0.3-0.4 L/kg; Clavulanate: 0.2 L/kg
ProteinBinding: Amoxicillin: 17-20%; Clavulanate: 22-30%
CnssPenetration: Limited (increases with meningeal inflammation)

Elimination:

HalfLife: Amoxicillin: 1-1.5 hours; Clavulanate: 1 hour (both prolonged in renal impairment)
Clearance: Primarily renal
ExcretionRoute: Amoxicillin: Renal (tubular secretion and glomerular filtration); Clavulanate: Renal (glomerular filtration and some tubular secretion), also non-renal elimination.
Unchanged: Amoxicillin: 50-70%; Clavulanate: 25-40%
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Pharmacodynamics

OnsetOfAction: Rapid, typically within 30 minutes to 1 hour
PeakEffect: 1-2 hours post-dose
DurationOfAction: Dependent on half-life and MIC of pathogen, typically allows for twice-daily dosing.

Safety & Warnings

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Side Effects

Urgent Side Effects: Seek Medical Help Right Away

Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you or your child experience any of the following symptoms, contact your doctor or seek medical attention immediately:

Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Rarely, allergic reactions can be fatal.
Signs of drug-induced enterocolitis syndrome, a type of allergic reaction, such as:
+ Vomiting within 1 to 4 hours after taking this medication
+ Diarrhea within 24 hours after taking this medication
+ Pale or gray skin
+ Feeling tired or unwell
+ Signs of low blood pressure, such as severe dizziness or passing out
Vaginal irritation or discharge
Fever or chills
Unexplained bruising or bleeding
Diarrhea is a common side effect of antibiotics. However, in rare cases, a severe form called C. diff-associated diarrhea (CDAD) may occur, which can lead to a life-threatening bowel problem. If your child experiences:
+ Stomach pain
+ Cramps
+ Very loose, watery, or bloody stools
Contact your child's doctor right away. Before treating diarrhea, consult with your child's doctor.
Liver problems have been reported with this medication, and in rare cases, have been fatal. If your child exhibits signs of liver problems, such as:
+ Dark urine
+ Tiredness
+ Decreased appetite
+ Upset stomach or stomach pain
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes
Contact the doctor immediately.
Severe skin reactions, including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious reactions, may occur. These reactions can affect body organs and be life-threatening. Seek medical help right away if your child experiences:
+ Red, swollen, blistered, or peeling skin
+ Red or irritated eyes
+ Sores in the mouth, throat, nose, eyes, genitals, or any areas of skin
+ Fever
+ Chills
+ Body aches
+ Shortness of breath
+ Swollen glands

Other Possible Side Effects

All medications can cause side effects, but many people experience no side effects or only minor ones. If your child experiences any of the following side effects or any other side effects that bother them or do not go away, contact your child's doctor or seek medical help:

Diarrhea
Upset stomach
Vomiting
* Diaper rash

This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, contact your child's doctor for medical advice.
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Seek Immediate Medical Attention If You Experience:

  • Severe allergic reaction: Hives, difficulty breathing, swelling of face/lips/tongue/throat (seek emergency medical attention).
  • Severe or watery diarrhea, especially if persistent or bloody (could be C. difficile infection).
  • Yellowing of skin or eyes (jaundice), dark urine, pale stools (signs of liver problems).
  • Unusual bruising or bleeding.
  • New or worsening rash.
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Before Using This Medicine

Before Your Child Takes This Medication: Inform Your Doctor If:
- Your child has an allergy to this medication, any of its components, or other drugs, foods, or substances, and describe the allergic reaction they experienced.
- Your child is allergic to penicillin.
- Your child has kidney disease.
- Your child has previously experienced jaundice (turned yellow) or liver-related side effects while taking this medication.
- Your child has mononucleosis (mono).
- Your child is currently taking probenecid.

Important: This list does not include all possible interactions with this medication. It is crucial to inform your doctor and pharmacist about all prescription and over-the-counter medications, natural products, and vitamins your child is taking, as well as any health issues they may have. Always verify with your doctor that it is safe to take this medication alongside other medications and health conditions. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.
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Precautions & Cautions

It is essential to inform all of your child's healthcare providers, including doctors, nurses, pharmacists, and dentists, that your child is taking this medication. If your child will be taking this drug for an extended period, regular blood tests will be necessary to monitor their condition; consult with your child's doctor to discuss the details.

This medication may interfere with certain laboratory tests, so it is crucial to notify all healthcare providers and laboratory personnel that your child is taking this drug. If your child has diabetes and you are testing their urine glucose levels, consult with your child's doctor to determine the most suitable tests to use.

For children with phenylketonuria (PKU), it is essential to discuss this condition with your child's doctor, as some products may contain phenylalanine. Do not administer this medication to your child for longer than prescribed, as this may increase the risk of a second infection.

A possible side effect of this medication is a change in tooth color to yellow-gray-brown, which has been reported primarily in children. In most cases, the discoloration lessens or disappears with regular brushing or dental cleaning. If you notice any changes in your child's tooth color, consult with their doctor.

If your child is sexually active or may become sexually active, it is essential to note that birth control pills and other hormone-based contraceptives may be less effective while taking this medication. To prevent pregnancy, your child should use an additional form of birth control, such as a condom, in conjunction with this medication.

If your child is pregnant, becomes pregnant, or is breastfeeding, consult with their doctor to discuss the potential benefits and risks to both your child and the baby. This will help you make an informed decision about your child's treatment.
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Overdose Information

Overdose Symptoms:

  • Gastrointestinal symptoms (abdominal pain, vomiting, diarrhea)
  • Rash
  • Hyperactivity
  • Drowsiness
  • Renal tubular damage (rare)
  • Crystalluria (rare, leading to renal failure)

What to Do:

In case of suspected overdose, immediately contact a poison control center (e.g., 1-800-222-1222 in the US) or seek emergency medical attention. Treatment is generally supportive, including symptomatic management and monitoring of fluid and electrolyte balance. Hemodialysis can remove amoxicillin and clavulanate from circulation.

Drug Interactions

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Contraindicated Interactions

  • History of cholestatic jaundice/hepatic dysfunction associated with amoxicillin/clavulanate.
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Major Interactions

  • Warfarin (increased INR/bleeding risk due to altered gut flora and vitamin K synthesis)
  • Methotrexate (increased methotrexate toxicity due to reduced renal clearance)
  • Allopurinol (increased incidence of skin rash, particularly in hyperuricemic patients)
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Moderate Interactions

  • Probenecid (increases and prolongs amoxicillin blood levels by decreasing renal tubular secretion)
  • Oral Contraceptives (potential for reduced efficacy, though evidence is controversial and not consistently demonstrated)
  • Mycophenolate Mofetil (reduced mycophenolate exposure due to disruption of enterohepatic recirculation)
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Minor Interactions

  • Tetracyclines (may antagonize the bactericidal effect of amoxicillin)
  • Chloramphenicol, Macrolides, Sulfonamides (may antagonize the bactericidal effect of amoxicillin)

Monitoring

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Baseline Monitoring

Liver function tests (ALT, AST, bilirubin)

Rationale: To establish baseline in patients with pre-existing hepatic impairment or history of liver disease, and to monitor for potential drug-induced liver injury.

Timing: Prior to initiation in at-risk patients.

Renal function (CrCl, BUN, creatinine)

Rationale: To assess baseline kidney function and guide dosage adjustments in patients with renal impairment.

Timing: Prior to initiation in patients with suspected or known renal impairment.

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Routine Monitoring

Clinical response to therapy (e.g., resolution of fever, improvement in symptoms)

Frequency: Daily during treatment

Target: Improvement in symptoms within 2-3 days

Action Threshold: Lack of improvement or worsening symptoms may indicate treatment failure, resistant pathogen, or alternative diagnosis.

Signs and symptoms of hypersensitivity reactions (e.g., rash, itching, dyspnea)

Frequency: Daily during treatment and for several days post-treatment

Target: Absence of allergic symptoms

Action Threshold: Any signs of allergic reaction warrant immediate discontinuation and appropriate management.

Signs and symptoms of C. difficile-associated diarrhea (CDAD) (e.g., severe diarrhea, abdominal pain, fever)

Frequency: Throughout treatment and for up to 2 months post-treatment

Target: Absence of severe diarrhea

Action Threshold: Onset of severe, persistent diarrhea warrants investigation for CDAD.

Liver function tests (ALT, AST, bilirubin)

Frequency: Periodically, especially in prolonged therapy or in patients with pre-existing hepatic conditions

Target: Within normal limits or stable for patient's baseline

Action Threshold: Significant elevation may indicate drug-induced liver injury; consider discontinuation.

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Symptom Monitoring

  • Skin rash, hives, itching (signs of allergic reaction)
  • Swelling of face, lips, tongue, or throat (angioedema)
  • Difficulty breathing or swallowing (anaphylaxis)
  • Severe or persistent diarrhea, abdominal pain, fever (C. difficile-associated diarrhea)
  • Yellowing of skin or eyes (jaundice), dark urine, pale stools (signs of liver problems)
  • Unusual bruising or bleeding (if on warfarin)
  • Nausea, vomiting, abdominal discomfort

Special Patient Groups

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Pregnancy

Category B. Studies in animals have not shown harm to the fetus, and there are no adequate and well-controlled studies in pregnant women. Generally considered safe for use during pregnancy when clearly needed.

Trimester-Specific Risks:

First Trimester: No increased risk of congenital malformations observed.
Second Trimester: No specific risks identified.
Third Trimester: No specific risks identified. However, use near term should be considered carefully due to potential for neonatal adverse effects (e.g., diarrhea, candidiasis).
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Lactation

L1 (Safest). Both amoxicillin and clavulanate are excreted in breast milk in small amounts. Generally considered compatible with breastfeeding.

Infant Risk: Low risk. Potential for mild gastrointestinal upset (diarrhea, candidiasis) in the breastfed infant. Monitor infant for rash or diarrhea.
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Pediatric Use

This ES-600 formulation is specifically designed and dosed for pediatric patients, particularly for acute otitis media and sinusitis. Dosage is weight-based (90 mg/kg/day of amoxicillin component). Close monitoring for gastrointestinal side effects and candidiasis is important.

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Geriatric Use

Dosage adjustment may be necessary based on renal function, as elderly patients are more likely to have decreased renal clearance. Monitor for adverse effects, particularly gastrointestinal and hepatic, as elderly patients may be more susceptible.

Clinical Information

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Clinical Pearls

  • Amox-Clav ES-600 is specifically formulated for pediatric patients with acute otitis media or sinusitis where higher amoxicillin dosing is needed, often due to penicillin-resistant S. pneumoniae or beta-lactamase producing organisms.
  • Always ensure the correct formulation (e.g., ES-600 vs. other Augmentin strengths) is prescribed and dispensed, as the clavulanate ratio differs significantly.
  • Instruct patients to shake the suspension well before each use and to use an accurate measuring device.
  • Taking with food helps reduce gastrointestinal side effects, which are common with this medication.
  • Emphasize the importance of completing the full course of antibiotics to prevent resistance, even if symptoms improve.
  • Counsel parents on potential side effects like diarrhea and rash, and when to seek medical attention.
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Alternative Therapies

  • Cefdinir (for AOM/ABS)
  • Cefuroxime (for AOM/ABS)
  • Ceftriaxone (injectable, for severe AOM/ABS)
  • Azithromycin (for AOM/ABS, though resistance is a concern for S. pneumoniae)
  • Clindamycin (for penicillin-allergic patients with certain infections)
  • Levofloxacin (for severe infections in older children/adults, generally reserved due to side effects)
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Cost & Coverage

Average Cost: $30 - $70 per 125ml bottle (generic)
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (most insurance plans)
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General Drug Facts

If your child's symptoms or health issues persist or worsen, it is essential to contact their doctor promptly. To ensure safe and effective treatment, never share your child's medication with others, and do not administer someone else's medication to your child. Some medications may come with an additional patient information leaflet; if you have any questions or concerns about this medication, consult with your child's doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call the poison control center or seek medical attention. When reporting the incident, be prepared to provide detailed information, including the substance taken, the quantity, and the time it occurred.