Amox-Clav 400mg/5ml Susp 75ml

Manufacturer WEST-WARD 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) + Beta-lactamase inhibitor
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Pregnancy Category
Category B
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FDA Approved
May 1984
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Amoxicillin and clavulanate is an antibiotic medication used to treat bacterial infections. Amoxicillin kills bacteria, and clavulanate helps amoxicillin work better by stopping certain bacteria from destroying it. It's important to take all of the medication as prescribed, even if you feel better, to prevent the infection from coming back.
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How to Use This Medicine

Taking Your Medication Correctly

To get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided with your prescription and follow the instructions closely. Take your medication at the beginning of a meal to enhance its effectiveness and minimize the risk of stomach upset. Continue taking your medication as directed by your doctor or healthcare provider, even if you start to feel better.

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

Storing and Disposing of Your 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 may occur in certain products during storage, but if you are unsure about this, consult your pharmacist. Keep all medications in a safe 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 is close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses to make up for a missed dose.
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Lifestyle & Tips

  • Take with food or milk to reduce stomach upset.
  • Shake the suspension well before each use.
  • Use an accurate measuring spoon or oral syringe provided with the medication, not a household spoon.
  • Store the reconstituted suspension in the refrigerator and discard any unused portion after 10 days.
  • Do not share this medication with others.
  • Complete the full course of treatment, even if symptoms improve, to prevent antibiotic resistance.

Dosing & Administration

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Adult Dosing

Standard Dose: Not typically used for standard adult dosing; adult formulations (e.g., 875mg/125mg tablets) are preferred. For adult oral suspension, typical dosing is 500mg/125mg every 8 hours or 875mg/125mg every 12 hours, based on infection severity.

Condition-Specific Dosing:

otitisMedia_sinusitis_lowerRespiratoryTractInfections: 875mg/125mg every 12 hours or 500mg/125mg every 8 hours for 7-10 days.
skinAndSkinStructureInfections_urinaryTractInfections: 500mg/125mg every 8 hours or 875mg/125mg every 12 hours for 7-10 days.
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Pediatric Dosing

Neonatal: Not established for neonates (<3 months). Use with caution and specific guidance.
Infant: For infants â‰Ĩ3 months: Dosing is based on amoxicillin component. For 400mg/5ml suspension, typical dosing for mild-moderate infections is 25 mg/kg/day divided every 12 hours. For severe infections (e.g., otitis media, sinusitis, lower respiratory tract infections), 45 mg/kg/day divided every 12 hours. Max 1000mg amoxicillin/day.
Child: For children â‰Ĩ3 months: Dosing is based on amoxicillin component. For 400mg/5ml suspension, typical dosing for mild-moderate infections is 25 mg/kg/day divided every 12 hours. For severe infections (e.g., otitis media, sinusitis, lower respiratory tract infections), 45 mg/kg/day divided every 12 hours. Max 1000mg amoxicillin/day. Dosing should not exceed adult recommendations.
Adolescent: Dosing typically follows adult recommendations (e.g., 875mg/125mg every 12 hours or 500mg/125mg every 8 hours) or pediatric high-dose if weight-appropriate, not exceeding adult maximums.
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Dose Adjustments

Renal Impairment:

Mild: CrCl >30 mL/min: No dosage adjustment needed.
Moderate: CrCl 10-30 mL/min: 500mg/125mg every 12 hours (or equivalent pediatric dose based on amoxicillin component).
Severe: CrCl <10 mL/min: 500mg/125mg every 24 hours (or equivalent pediatric dose based on amoxicillin component).
Dialysis: Hemodialysis: 500mg/125mg every 24 hours. Administer an additional dose during and at the end of dialysis. Peritoneal Dialysis: No specific recommendations, follow severe impairment guidelines and monitor.

Hepatic Impairment:

Mild: Use with caution; monitor liver function.
Moderate: Use with caution; monitor liver function. Dosage adjustment may be necessary based on clinical response and liver function tests.
Severe: Use with caution; monitor liver function. 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 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 amoxicillin/clavulanate is optimized when taken at the start of a meal to minimize gastrointestinal intolerance. Food does not significantly affect the extent of absorption of amoxicillin, but it may decrease the absorption of clavulanate slightly.

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
Clearance: Amoxicillin: Renal clearance; Clavulanate: Renal and non-renal clearance
ExcretionRoute: Amoxicillin: Primarily renal (unchanged); Clavulanate: Renal (partially unchanged, partially as metabolites)
Unchanged: Amoxicillin: 50-70%; Clavulanate: 25-40%
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Pharmacodynamics

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

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 immediately or seek emergency medical attention:

Signs of an allergic reaction, such as:
+ Rash or hives
+ Itching or red, swollen, blistered, or peeling skin (with or without fever)
+ Wheezing or tightness in the chest or throat
+ Difficulty breathing, swallowing, or talking
+ Unusual hoarseness or 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, including severe dizziness or fainting
Vaginal irritation or discharge
Fever or chills
Unexplained bruising or bleeding
Diarrhea is a common side effect of antibiotics, but rarely, a severe form called C. diff-associated diarrhea (CDAD) may occur. If you experience:
+ Stomach pain or cramps
+ Very loose, watery, or bloody stools
+ Call your doctor right away, and do not treat diarrhea without consulting your doctor first.
Liver problems, which can be fatal, may occur. Seek medical help immediately if you experience:
+ 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 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 skin
+ Fever
+ Chills
+ Body aches
+ Shortness of breath
+ Swollen glands

Other Possible Side Effects

Most people do not experience significant side effects, but some may occur. If you are concerned about any side effects or if they persist, contact your doctor. Common side effects include:

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

Reporting Side Effects

This is not an exhaustive list of possible side effects. If you have questions or concerns, 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:

  • Signs of a severe allergic reaction: rash, hives, itching, swelling of the face, lips, tongue, or throat, difficulty breathing or swallowing. Seek immediate medical attention.
  • Severe or watery diarrhea, especially if it contains blood or mucus, which may occur even weeks after stopping the medication. Contact your doctor immediately.
  • Yellowing of the skin or eyes (jaundice), dark urine, pale stools, severe stomach pain, or persistent nausea/vomiting, which could indicate liver problems.
  • Unusual bruising or bleeding.
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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 impact your ability to take this medication.
Existing kidney disease, as this may affect how your body processes 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 other drugs. 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 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 is a change in tooth color to a yellow-gray-brown hue, which has been reported primarily in children. In most cases, this discoloration can be reduced or eliminated with regular brushing or dental cleaning. If you experience a change 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, abdominal pain)
  • Fluid and electrolyte imbalance
  • Rash
  • Hyperactivity
  • Drowsiness
  • Renal dysfunction (crystalluria, especially with high doses)

What to Do:

In case of suspected overdose, contact a poison control center (1-800-222-1222) or seek emergency medical attention immediately. Treatment is largely supportive, focusing on managing symptoms and maintaining hydration. Hemodialysis can remove amoxicillin and clavulanate from circulation.

Drug Interactions

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Major Interactions

  • Methotrexate (increased methotrexate levels and toxicity due to reduced renal clearance)
  • Warfarin (increased INR/bleeding risk, especially with high doses or prolonged use)
  • Mycophenolate mofetil (reduced mycophenolate levels due to disruption of enterohepatic recirculation)
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Moderate Interactions

  • Allopurinol (increased incidence of rash with amoxicillin)
  • Oral Contraceptives (potential reduction in efficacy, though evidence is debated)
  • Probenecid (increases and prolongs amoxicillin blood levels by decreasing renal tubular secretion)
  • Typhoid vaccine (live, oral) (antibiotics may inactivate the vaccine)

Monitoring

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Baseline Monitoring

Renal function (CrCl, BUN, Creatinine)

Rationale: To determine appropriate dosing, especially in patients with pre-existing renal impairment.

Timing: Prior to initiation, if renal impairment is suspected or known.

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 hepatic impairment is suspected or known.

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Routine Monitoring

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

Frequency: Daily during acute treatment

Target: Improvement in symptoms

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

Signs and symptoms of adverse reactions (e.g., rash, diarrhea, nausea, vomiting)

Frequency: Daily during treatment

Target: Absence of severe adverse effects

Action Threshold: Development of severe rash (e.g., SJS, TEN), severe diarrhea (C. difficile), or signs of allergic reaction requires immediate discontinuation.

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 indicate drug-induced liver injury; consider discontinuation.

Renal function (CrCl, 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 indicate renal impairment; adjust dose or consider discontinuation.

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Symptom Monitoring

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

Special Patient Groups

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Pregnancy

Amoxicillin/clavulanate is classified as 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. It is generally considered safe for use during pregnancy when clearly needed, but should be used with caution and only if the potential benefit justifies the potential risk to the fetus.

Trimester-Specific Risks:

First Trimester: Generally considered low risk, but use only if clearly indicated.
Second Trimester: Generally considered low risk.
Third Trimester: Generally considered low risk. There is a theoretical risk of necrotizing enterocolitis in neonates exposed to clavulanate in utero, but clinical evidence is limited.
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Lactation

Amoxicillin and clavulanate are excreted in small amounts into breast milk. Generally considered compatible with breastfeeding. Monitor breastfed infants for potential adverse effects.

Infant Risk: Low risk. Potential adverse effects in breastfed infants include diarrhea, candidiasis (thrush), or skin rash. Discontinue breastfeeding if these effects occur or if the infant develops signs of allergy.
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Pediatric Use

Dosing is weight-based and varies by infection severity. The 400mg/5ml suspension is commonly used in pediatric patients. Close monitoring for gastrointestinal side effects and rash is important. Not recommended for neonates (<3 months) due to immature renal function and limited data.

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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. Dosage adjustment is often necessary due to age-related decline in renal function. Monitor renal function closely.

Clinical Information

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Clinical Pearls

  • Always complete the full course of therapy to prevent the development of antibiotic resistance.
  • Taking the medication with food helps reduce gastrointestinal side effects like nausea and diarrhea.
  • The 400mg/5ml suspension is a high-dose formulation often used for more resistant infections or in areas with high rates of penicillin-resistant S. pneumoniae.
  • Patients should be advised to report any signs of severe diarrhea (especially if bloody) or allergic reactions immediately.
  • Reconstituted suspension must be refrigerated and discarded after 10 days.
  • Amoxicillin/clavulanate is not effective against viral infections.
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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
  • Tetracyclines (e.g., Doxycycline) - for specific indications
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Cost & Coverage

Average Cost: Varies widely (e.g., $20 - $100+) per 75ml bottle of 400mg/5ml suspension
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (Generic usually preferred)
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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.