Augmentin 400mg/5ml Susp 50ml

Manufacturer GLAXOSMITH Active Ingredient Amoxicillin and Clavulanate Suspension(a moks i SIL in & klav yoo LAN ate) Pronunciation a-moks-i-SIL-in & klav-yoo-LAN-ate
It is used to treat bacterial 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
Sep 1984
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Augmentin is an antibiotic that contains two medicines: amoxicillin and clavulanate. Amoxicillin kills bacteria, and clavulanate helps amoxicillin work better by stopping bacteria from destroying it. It's used to treat various bacterial infections like ear infections, sinus infections, skin infections, and pneumonia. It will not work for viral infections like the common cold or flu.
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How to Use This Medicine

Taking Your Medication Correctly

To get the most benefit from your medication, take it exactly as directed by your doctor. Carefully read all the information provided with your prescription and follow the instructions closely.

To minimize the risk of stomach upset and ensure the medication works effectively, take it at the start of a meal. Continue taking your medication as instructed by your doctor or healthcare provider, even if you start feeling well.

Before using the liquid form of this medication, shake the bottle well. Measure liquid doses accurately using the measuring device that comes with the medication. If a measuring device is not provided, ask your pharmacist for one to ensure precise dosing.

Storing and Disposing of Your Medication

Store the liquid suspension form of this medication 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 about this, consult your pharmacist.

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

What to Do If You Miss a Dose

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

  • Take with food (preferably at the start of a meal) to reduce stomach upset and improve absorption.
  • Shake the suspension well before each use.
  • Use the provided measuring spoon or cup for accurate dosing.
  • Complete the entire course of medication, even if you feel better, to prevent 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: 500 mg/125 mg every 8 hours or 875 mg/125 mg every 12 hours (Amoxicillin/Clavulanate)
Dose Range: 500 - 875 mg

Condition-Specific Dosing:

mild_moderate_infections: 500 mg/125 mg every 8 hours
severe_infections_respiratory_tract_infections: 875 mg/125 mg every 12 hours
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Pediatric Dosing

Neonatal: Not established for this specific formulation (400mg/5ml). Consult specific guidelines for neonates, often based on amoxicillin component and weight.
Infant: 20-45 mg/kg/day (amoxicillin component) in divided doses every 12 hours, depending on infection severity. For 400mg/5ml (7:1 ratio), this means 400mg amoxicillin and 57mg clavulanate per 5ml. Max 1000 mg amoxicillin/day.
Child: 20-45 mg/kg/day (amoxicillin component) in divided doses every 12 hours, depending on infection severity. For 400mg/5ml (7:1 ratio), this means 400mg amoxicillin and 57mg clavulanate per 5ml. Max 1000 mg amoxicillin/day.
Adolescent: Typically dosed as adults (e.g., 875 mg/125 mg every 12 hours) if weight is sufficient, otherwise pediatric dosing by weight.
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Dose Adjustments

Renal Impairment:

Mild: CrCl >30 mL/min: No adjustment needed.
Moderate: CrCl 10-30 mL/min: 250 mg/125 mg or 500 mg/125 mg every 12 hours (based on amoxicillin component).
Severe: CrCl <10 mL/min: 250 mg/125 mg or 500 mg/125 mg every 24 hours (based on amoxicillin component).
Dialysis: Hemodialysis: 250 mg/125 mg or 500 mg/125 mg every 24 hours, with an additional dose during and at the end of dialysis. Peritoneal Dialysis: No specific recommendations, generally avoid due to lack of data or use with caution.

Hepatic Impairment:

Mild: No specific adjustment recommended, but use with caution.
Moderate: No specific adjustment recommended, but use with caution and monitor liver function.
Severe: Use with caution and monitor liver function at regular intervals. Not recommended in patients with a history of amoxicillin/clavulanate-associated cholestatic jaundice/hepatic dysfunction.

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 and death. Clavulanate is a beta-lactamase inhibitor that protects amoxicillin from degradation by beta-lactamase enzymes produced by resistant bacteria, thereby extending amoxicillin's 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 is optimized when taken at the start of a meal, which also reduces potential gastrointestinal intolerance.

Distribution:

Vd: Amoxicillin: 0.3-0.4 L/kg; Clavulanate: 0.2 L/kg
ProteinBinding: Amoxicillin: 17-20%; Clavulanate: 25%
CnssPenetration: Limited (increases with meningeal inflammation)

Elimination:

HalfLife: Amoxicillin: 1-1.5 hours; Clavulanate: 1 hour (both prolonged in renal impairment)
Clearance: Amoxicillin: Primarily renal; Clavulanate: Primarily renal
ExcretionRoute: Renal (glomerular filtration and tubular secretion)
Unchanged: Amoxicillin: 60-70%; Clavulanate: 25-40%
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Pharmacodynamics

OnsetOfAction: Rapid, typically within 1 hour
PeakEffect: 1-2 hours post-dose
DurationOfAction: Dependent on dosing frequency (e.g., 8 or 12 hours)

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 notice 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, including 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 you experience:
+ Stomach pain
+ Cramps
+ Very loose, watery, or bloody stools
contact your doctor right away. Before treating diarrhea, consult with your doctor.
Liver problems have been reported with this medication, and in rare cases, have been fatal. Seek medical attention immediately if you notice:
+ Dark urine
+ Tiredness
+ Decreased appetite
+ Upset stomach or stomach pain
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes
Severe skin reactions, including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious reactions, may occur. These reactions can be life-threatening and may affect other organs. Seek medical help right away if you experience:
+ Red, swollen, blistered, or peeling skin
+ Red or irritated eyes
+ Sores in your mouth, throat, nose, eyes, genitals, or any areas of skin
+ Fever
+ Chills
+ Body aches
+ Shortness of breath
+ Swollen glands

Other Side Effects

Most people do not experience significant side effects, but some may occur. If you are bothered by any of the following side effects or if they do not go away, contact your doctor:

For all patients taking this medication:
+ Diarrhea
+ Upset stomach
+ Vomiting
* For children:
+ Diaper rash

This is not an exhaustive list of all possible side effects. If you have questions or concerns about side effects, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
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Seek Immediate Medical Attention If You Experience:

  • Severe allergic reaction (rash, hives, swelling of face/lips/tongue, difficulty breathing)
  • Severe or persistent diarrhea (especially if bloody or watery)
  • Yellowing of skin or eyes (jaundice)
  • Dark urine, pale stools
  • Unusual bruising or bleeding
  • Signs of liver problems (e.g., severe nausea, vomiting, abdominal pain)
  • New or worsening rash
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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 conditions to ensure safe treatment:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction and its symptoms.
If you are allergic to penicillin, as this may affect your ability to take this medication.
Existing kidney disease, as this may impact the dosage or administration of the medication.
Previous experiences with liver problems or jaundice (turning yellow) while taking this medication.
If you have been diagnosed with mononucleosis (mono).
Current use of probenecid, as this may interact with the medication.

This list is not exhaustive, and it is crucial to discuss all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, with your doctor and pharmacist. They will help you determine if it is safe to take this medication with your existing health conditions and medications. Never start, stop, or change the dose of any medication without consulting your doctor first.
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Precautions & Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. If you are taking this drug for an extended period, your doctor may recommend regular blood tests to monitor your condition.

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

Individuals with phenylketonuria (PKU) should discuss this condition with their doctor, as some products may contain phenylalanine.

Do not take this medication for longer than prescribed, as this may increase the risk of a second infection. A common side effect of this drug, particularly in children, is a change in tooth color to a yellow-gray-brown hue. In most cases, this discoloration can be reduced or eliminated with regular brushing or dental cleaning. If you notice any changes in tooth color, consult with your doctor.

Women taking birth control pills or other hormone-based contraceptives should be aware that this medication may reduce their effectiveness. To prevent pregnancy, consider using an additional form of birth control, such as a condom, while taking this drug.

If you are pregnant, plan to become pregnant, or are breastfeeding, inform your doctor. You will need to discuss the potential benefits and risks of taking this medication to both you and your baby.
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Overdose Information

Overdose Symptoms:

  • Gastrointestinal symptoms (nausea, vomiting, diarrhea)
  • Electrolyte imbalance
  • Crystalluria (in severe cases, leading to renal failure)
  • Convulsions (rare, in patients with impaired renal function or high doses)

What to Do:

Call 1-800-222-1222 (Poison Control). Treatment is symptomatic and supportive. Hemodialysis can remove amoxicillin and clavulanate from circulation.

Drug Interactions

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Major Interactions

  • Allopurinol (increased risk of rash)
  • Warfarin and other oral anticoagulants (increased INR/bleeding risk)
  • Methotrexate (decreased renal clearance of methotrexate, leading to increased toxicity)
  • Mycophenolate mofetil (reduced mycophenolic acid concentration)
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Moderate Interactions

  • Probenecid (decreased renal tubular secretion of amoxicillin, leading to increased and prolonged amoxicillin levels)
  • Oral contraceptives (potential for reduced efficacy, though evidence is limited and controversial)
  • Typhoid vaccine (live, oral) (antibiotics may inactivate the vaccine)
  • Tetracyclines (may interfere with bactericidal effect of penicillins)
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Minor Interactions

  • Aminoglycosides (in vitro inactivation, but not clinically significant in vivo for systemic use)

Monitoring

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Baseline Monitoring

Allergy history (penicillins, cephalosporins)

Rationale: To prevent hypersensitivity reactions.

Timing: Prior to initiation of therapy.

Renal function (CrCl)

Rationale: To guide dose adjustment in renal impairment.

Timing: Prior to initiation, especially in elderly or those with suspected renal issues.

Liver function tests (ALT, AST, bilirubin)

Rationale: To assess baseline hepatic status, especially in patients with pre-existing liver disease or history of drug-induced liver injury.

Timing: Prior to initiation, if clinically indicated.

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Routine Monitoring

Signs and symptoms of infection resolution

Frequency: Daily

Target: Improvement in fever, pain, inflammation

Action Threshold: Lack of improvement or worsening symptoms after 2-3 days may indicate treatment failure or resistant organism.

Gastrointestinal symptoms (diarrhea, nausea, vomiting)

Frequency: Daily

Target: Minimal to no GI upset

Action Threshold: Severe or persistent diarrhea (especially bloody) may indicate C. difficile infection; severe nausea/vomiting may require discontinuation.

Liver function tests (ALT, AST, bilirubin)

Frequency: Periodically, especially with prolonged therapy or in patients with hepatic impairment

Target: Within normal limits or stable

Action Threshold: Significant elevation (e.g., >3x ULN) may indicate drug-induced liver injury and require discontinuation.

Renal function (CrCl)

Frequency: Periodically, especially with prolonged therapy or in patients with renal impairment

Target: Stable

Action Threshold: Significant decline may require further dose adjustment.

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Symptom Monitoring

  • Rash (maculopapular, urticarial)
  • Pruritus
  • Dyspnea, wheezing, angioedema (signs of anaphylaxis)
  • Severe or persistent diarrhea (especially bloody or watery)
  • Yellowing of skin or eyes (jaundice)
  • Dark urine, pale stools
  • Unusual fatigue or weakness
  • Abdominal pain

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 major birth defects observed.
Second Trimester: No increased risk of major birth defects observed.
Third Trimester: No increased risk of major birth defects observed. 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 (Compatible). Both amoxicillin and clavulanate are excreted in breast milk in small amounts. Generally considered safe for nursing infants. Monitor infant for diarrhea, candidiasis (thrush, diaper rash), or allergic reactions.

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

Dosing is weight-based and depends on the severity and type of infection. The 400mg/5ml formulation (7:1 ratio) is commonly used for pediatric patients. Ensure accurate measurement using an oral syringe or measuring spoon. Not recommended for neonates without specific guidelines.

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Geriatric Use

No overall differences in safety or effectiveness have been observed between elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. Dose adjustment is necessary based on renal function, which is often decreased in the elderly. Monitor for adverse effects, especially GI upset and liver function.

Clinical Information

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Clinical Pearls

  • Always confirm the specific Augmentin formulation (e.g., 400mg/5ml, 600mg/5ml, 875mg/125mg) as the amoxicillin to clavulanate ratio can vary, impacting dosing, especially in pediatrics.
  • Taking Augmentin with food, particularly at the start of a meal, significantly reduces the incidence of gastrointestinal side effects (e.g., diarrhea, nausea).
  • Diarrhea is a common side effect; advise patients to report severe or persistent diarrhea, as it could indicate Clostridioides difficile-associated diarrhea (CDAD).
  • Liver dysfunction, including cholestatic jaundice, can occur, even after discontinuation of therapy. Monitor LFTs in patients with pre-existing hepatic impairment or during prolonged therapy.
  • Ensure patients understand the importance of completing the full course of antibiotics to prevent antibiotic resistance and relapse.
  • The suspension must be refrigerated after reconstitution and discarded after 10 days.
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Alternative Therapies

  • Cephalosporins (e.g., Cefdinir, Cefuroxime, Ceftriaxone)
  • Macrolides (e.g., Azithromycin, Clarithromycin) - for atypical pathogens or penicillin allergy
  • Fluoroquinolones (e.g., Levofloxacin, Moxifloxacin) - for specific indications and resistance patterns
  • Doxycycline (for certain respiratory or skin infections)
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Cost & Coverage

Average Cost: Varies widely, typically $20-$100+ per 50ml bottle of suspension
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (generic), Tier 3 (brand)
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General Drug Facts

If your symptoms or health issues persist or worsen, it's essential to contact your doctor for further guidance. To ensure your safety, never share your medication with others or take someone else's medication. Some medications may come with an additional patient information leaflet, so be sure to check with your pharmacist for more information. If you have any questions or concerns about your medication, don't hesitate to reach out to your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek emergency medical attention. When seeking help, be prepared to provide details about the medication taken, the amount, and the time it happened.