Amox-Clav ES 600mg/5ml Susp 75ml

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
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Pharmacologic Class
Beta-lactam antibiotic (penicillin) and Beta-lactamase inhibitor combination
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Pregnancy Category
Category B
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FDA Approved
Mar 1998
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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, and clavulanate helps amoxicillin work better by protecting it from certain bacterial defenses. It's used to treat various bacterial infections, especially ear infections, sinus infections, and pneumonia 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 closely.

To minimize the risk of an upset stomach and maximize the medication's effectiveness, give it to your child at the start of a meal. Before administering, shake the liquid well and measure the dose accurately using the provided measuring device. If a measuring device is not included, ask your pharmacist for one to ensure precise dosing.

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. Note that some color change in the medication may occur during storage, but if you're unsure about this, consult your pharmacist.

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

Missing a Dose

If you miss a dose, give it to your child 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. Do not give your child two doses at once or extra doses.
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Lifestyle & Tips

  • Take with food or milk to reduce stomach upset.
  • Shake the oral suspension well before each use.
  • Use an accurate measuring spoon or cup provided with the medication, not a household spoon.
  • Complete the entire course of medication as prescribed, even if symptoms improve, to prevent antibiotic resistance and recurrence of infection.
  • 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 typically used for adults in this specific concentration (ES-600). Adult formulations (e.g., 875mg/125mg) are available.
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Pediatric Dosing

Neonatal: Not established for infants < 3 months of age.
Infant: Not established for infants < 3 months of age.
Child: For acute otitis media, community-acquired pneumonia, and sinusitis: 90 mg/kg/day (amoxicillin component) divided every 12 hours for 10 days. Max 4000 mg/day amoxicillin component.
Adolescent: Dosing typically follows pediatric guidelines based on weight for this formulation, or adult formulations may be used if appropriate.
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Dose Adjustments

Renal Impairment:

Mild: No dosage adjustment required for CrCl > 30 mL/min.
Moderate: CrCl 10-30 mL/min: Not recommended for ES-600 formulation due to fixed clavulanate ratio. Standard amoxicillin/clavulanate formulations (e.g., 250/125 or 500/125) may be used with dose adjustment.
Severe: CrCl < 10 mL/min: Not recommended for ES-600 formulation. Standard amoxicillin/clavulanate formulations are generally not recommended.
Dialysis: Hemodialysis: Not recommended for ES-600 formulation. Standard amoxicillin/clavulanate formulations require supplemental dose after dialysis. Peritoneal dialysis: Not recommended.

Hepatic Impairment:

Mild: Use with caution; monitor liver function.
Moderate: Use with caution; monitor liver function. Dosage adjustment may be necessary based on clinical judgment and liver function tests.
Severe: Use with caution; monitor liver function. Contraindicated in patients with a history of cholestatic jaundice/hepatic dysfunction associated with amoxicillin/clavulanate.

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 potassium is a beta-lactamase inhibitor that protects amoxicillin from degradation by beta-lactamase enzymes produced by many resistant bacteria, thereby extending the antibacterial spectrum of amoxicillin.
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Pharmacokinetics

Absorption:

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

Distribution:

Vd: Amoxicillin: 0.3-0.4 L/kg; Clavulanate: 0.2 L/kg
ProteinBinding: Amoxicillin: Approximately 17-20%; Clavulanate: Approximately 25%
CnssPenetration: Limited in the absence of meningeal inflammation; increased with inflamed meninges.

Elimination:

HalfLife: Amoxicillin: 1-1.3 hours; Clavulanate: 1-1.3 hours (both prolonged in renal impairment)
Clearance: Primarily renal clearance.
ExcretionRoute: Renal (glomerular filtration and tubular secretion)
Unchanged: Amoxicillin: Approximately 60-70% excreted unchanged in urine within 6 hours; Clavulanate: Approximately 25-40% excreted unchanged in urine within 6 hours.
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Pharmacodynamics

OnsetOfAction: Rapid, typically within 30 minutes to 1 hour.
PeakEffect: Peak plasma concentrations reached within 1-2 hours.
DurationOfAction: Antibacterial effect persists as long as drug concentrations are above the minimum inhibitory concentration (MIC), typically requiring 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, some 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 or watery diarrhea, especially if bloody (could be C. difficile infection)
  • Rash, hives, or itching (signs of allergic reaction)
  • Swelling of the face, lips, tongue, or throat (severe allergic reaction)
  • Difficulty breathing or swallowing
  • Yellowing of the skin or eyes (jaundice)
  • Unusual bruising or bleeding
  • Dark urine or pale stools
  • Persistent nausea, vomiting, or abdominal pain
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following:

If your child has an allergy to this medication, any of its components, or other medications, foods, or substances. Please describe the allergic reaction and the symptoms experienced.
If your child is allergic to penicillin.
If your child has kidney disease.
If your child has previously experienced liver problems or turned yellow while taking this medication.
If your child has mononucleosis (mono).
If your child is taking probenecid.

This list is not exhaustive, and it is crucial to discuss all medications (prescription, over-the-counter, natural products, and vitamins) and health issues with your doctor and pharmacist. They will help determine if it is safe to take this medication with your existing medications and health conditions. Never start, stop, or adjust the dosage of any medication without consulting your doctor first.
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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 is taking this medication long-term, 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.

For children with diabetes who test their urine glucose levels, it is recommended to consult with their doctor to determine the most suitable testing methods.

If your child has phenylketonuria (PKU), consult with their doctor, as some products contain phenylalanine.

Do not administer this medication to your child for an extended period beyond the prescribed duration, as this may increase the risk of a secondary infection.

A change in tooth color to yellow-gray-brown has been reported in some cases, primarily in children. In most instances, the discoloration lessened or resolved with regular brushing or dental cleaning. If you notice any changes in your child's tooth color, consult with their doctor.

For sexually active children:
Be aware that birth control pills and other hormone-based contraceptives may be less effective while taking this medication. It is recommended that your child uses an additional form of birth control, such as condoms, to prevent pregnancy.

For pregnant or breastfeeding children:
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.
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Overdose Information

Overdose Symptoms:

  • Gastrointestinal symptoms (e.g., stomach pain, vomiting, diarrhea)
  • Fluid and electrolyte imbalance
  • Rash
  • Hyperactivity
  • Drowsiness
  • Renal dysfunction (rarely, crystalluria leading to renal failure)

What to Do:

In case of suspected overdose, seek immediate medical attention or call a poison control center (e.g., 1-800-222-1222). Treatment is generally supportive and symptomatic. Hemodialysis can remove amoxicillin and clavulanate from circulation.

Drug Interactions

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Major Interactions

  • Warfarin (increased INR/bleeding risk)
  • Methotrexate (increased methotrexate levels and toxicity)
  • Allopurinol (increased incidence of rash)
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Moderate Interactions

  • Oral Contraceptives (potential for reduced efficacy)
  • Probenecid (increased and prolonged amoxicillin blood levels)
  • Mycophenolate mofetil (reduced mycophenolic acid exposure)

Monitoring

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Baseline Monitoring

Allergy history (penicillins, cephalosporins)

Rationale: To prevent severe hypersensitivity reactions.

Timing: Prior to initiation of therapy.

Renal function (CrCl, BUN, creatinine)

Rationale: To guide dosage adjustment in patients with impaired renal function.

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

Hepatic function (ALT, AST, bilirubin)

Rationale: To assess baseline liver status, especially in patients with pre-existing hepatic disease, as hepatic dysfunction can occur.

Timing: Prior to initiation in patients with pre-existing hepatic disease.

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Routine Monitoring

Clinical response to therapy

Frequency: Daily

Target: Resolution of infection symptoms

Action Threshold: Lack of improvement or worsening symptoms may indicate treatment failure or resistant organism.

Signs of superinfection (e.g., oral thrush, vaginal candidiasis, new onset diarrhea)

Frequency: Daily

Target: Absence of new infections

Action Threshold: Presence of new symptoms requires evaluation and potential treatment.

Liver function tests (ALT, AST, bilirubin)

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

Target: Within normal limits or stable

Action Threshold: Significant elevation may require discontinuation.

Renal function tests (BUN, creatinine)

Frequency: Periodically, especially with prolonged therapy or in patients with pre-existing renal impairment.

Target: Within normal limits or stable

Action Threshold: Significant elevation may require dosage adjustment or discontinuation.

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Symptom Monitoring

  • Diarrhea (especially severe or persistent, which could indicate C. difficile infection)
  • Rash or hives (signs of allergic reaction)
  • Itching
  • Nausea/Vomiting
  • Abdominal pain
  • Yellowing of skin or eyes (jaundice)
  • Dark urine
  • Unusual tiredness or weakness

Special Patient Groups

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Pregnancy

Category B. Studies in animals have not shown harm to the fetus, but 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 major birth defects observed in human studies.
Second Trimester: Generally considered safe.
Third Trimester: Generally considered safe. Caution advised near term due to potential for increased risk of necrotizing enterocolitis in neonates (though rare and not definitively linked).
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Lactation

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

Infant Risk: Low risk. Potential for infant sensitization (rash), diarrhea, or candidiasis (thrush). Monitor breastfed infant for these effects.
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Pediatric Use

The ES-600 formulation is specifically designed for pediatric use, particularly for acute otitis media, sinusitis, and community-acquired pneumonia. Dosing is weight-based (mg/kg/day) and should be carefully calculated. Not recommended for infants younger than 3 months.

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Geriatric Use

Dosage adjustment may be necessary in elderly patients due to a higher likelihood of decreased renal function. Monitor renal function. Hepatic function should also be monitored, as elderly patients may be more susceptible to hepatic dysfunction.

Clinical Information

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Clinical Pearls

  • The ES-600 formulation (600mg amoxicillin / 42.9mg clavulanate per 5ml) has a 14:1 amoxicillin to clavulanate ratio, which is different from other Augmentin formulations (e.g., 2:1, 4:1, 7:1). This higher amoxicillin ratio is designed to provide higher amoxicillin concentrations for specific pediatric infections like resistant otitis media.
  • Always ensure the correct formulation (e.g., ES-600 vs. standard Augmentin) is prescribed and dispensed, as the clavulanate content varies significantly.
  • Reconstituted suspension must be refrigerated and discarded after 10 days.
  • Counsel patients to complete the full course of therapy to prevent resistance and ensure eradication of infection.
  • Advise patients to take with food to minimize gastrointestinal side effects, which are common with amoxicillin/clavulanate.
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Alternative Therapies

  • Cephalosporins (e.g., cefdinir, cefuroxime, ceftriaxone)
  • Macrolides (e.g., azithromycin, clarithromycin) - if susceptible and beta-lactam allergy
  • Fluoroquinolones (e.g., levofloxacin, moxifloxacin) - generally not first-line for pediatric infections due to side effect profile
  • Clindamycin (for specific anaerobic or Gram-positive infections)
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Cost & Coverage

Average Cost: Varies widely, typically $30-$100+ per 75ml bottle
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (preferred generic or brand)
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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 amount, and the time it occurred.