Amox-Clav XR 1000/62.5mg Tablets
Overview
What is this medicine?
How to Use This Medicine
To use this medication correctly, follow your doctor's instructions and read all the information provided. Take the tablet with food, but avoid taking it with high-fat meals. Swallow the tablet whole; do not chew or crush it. However, some products may be broken in half - if you're unsure, consult your doctor. Continue taking this medication as directed by your doctor or healthcare provider, even if you're feeling well.
Storing and Disposing of Your Medication
Store this medication at room temperature in a dry place, avoiding bathrooms. Keep all medications in a safe location, out of the reach of children and pets. Dispose of unused or expired medications properly. Do not flush them down the toilet or pour them down the drain unless instructed to do so. If you have questions about disposal, consult your pharmacist. You may also want to check if there are drug take-back programs in your area.
Missing 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 dose, skip the missed dose and resume your regular schedule. Do not take two doses at the same time or take extra doses.
Lifestyle & Tips
- Take this medication exactly as prescribed by your doctor. Do not skip doses or stop taking it early, even if you feel better, as this can lead to antibiotic resistance.
- Take this medication at the start of a meal to reduce stomach upset.
- Swallow the extended-release tablets whole. Do not crush, chew, or break them.
- This medication is for bacterial infections only and will not work for viral infections like the common cold or flu.
- Stay hydrated by drinking plenty of fluids while taking this medication.
Available Forms & Alternatives
Available Strengths:
- Amox-Clav 200mg/5ml Susp 100ml
- Amox-Clav 400mg/5ml Susp 100ml
- Amox-Clav 875-125mg Tablets
- Amox-Clav 500-125mg Tablets
- Amox-Clav 200mg/5ml Susp 50ml
- Amox-Clav 200mg/5ml Susp 75ml
- Amox-Clav 400mg/5ml Susp 50ml
- Amox-Clav 400mg/5ml Susp 75ml
- Amox-Clav 875-125mg Tablets
- Amox-Clav 400mg Chew Tablets
- Amox-Clav 200/28.5mg Chew Tabs
- Amox-Clav 250-125mg Tablets
- Amox-Clav ES 600mg/5ml Susp 200ml
- Amox-Clav 250mg/5ml Susp 100ml
- Amox-Clav 250mg/5ml Susp 75ml
- Amox-Clav ES 600mg/5ml Susp 75ml
- Amox-Clav XR 1000/62.5mg Tablets
- Amox-Clav ES 600mg/5ml Susp 125ml
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
Side Effects
Although rare, this medication can cause severe and potentially life-threatening side effects. If you 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
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, especially if it is severe, bloody, or accompanied by stomach pain or cramps (see below for more information on diarrhea)
Signs of liver problems, such as:
+ 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)
+ Other serious reactions, which can affect body organs and be life-threatening
+ Signs of these reactions may include:
- 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
Diarrhea: Important Information
Diarrhea is a common side effect of antibiotics, but in rare cases, it can be severe and lead to a life-threatening condition called C. diff-associated diarrhea (CDAD). If you experience stomach pain, cramps, or very loose, watery, or bloody stools, contact your doctor right away. Do not treat diarrhea without consulting your doctor first.
Other Side Effects
Like all medications, this drug can cause side effects, although not everyone will experience them. If you have any of the following side effects or any other concerns, contact your doctor:
For all patients taking this medication:
+ Diarrhea
+ Upset stomach
+ Vomiting
For children:
+ Diaper rash
Reporting 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.
Seek Immediate Medical Attention If You Experience:
- Seek immediate medical attention if you experience signs of a severe allergic reaction: rash, hives, itching, swelling of the face, lips, tongue, or throat, or difficulty breathing.
- Contact your doctor if you develop severe or watery diarrhea, especially if it's persistent or contains blood or mucus, as this could be a sign of a serious intestinal infection (C. difficile).
- Report any yellowing of the skin or eyes (jaundice), dark urine, pale stools, or unusual fatigue, as these can be signs of liver problems.
- Report any new or worsening symptoms.
Before Using This Medicine
It is essential to inform your doctor about the following:
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.
If you have kidney disease or any history of kidney problems.
If you have experienced liver problems or jaundice (turned yellow) while taking this medication in the past.
If you have been diagnosed with mononucleosis (mono).
If you are currently taking probenecid.
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 medications. Never start, stop, or adjust the dosage of any medication without consulting your doctor first.
Precautions & Cautions
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.
Do not take this medication 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, which may appear as yellow, gray, or brown. This has been reported primarily in children, but in most cases, the discoloration lessened or disappeared after brushing or dental cleaning. If you notice any changes in tooth color, consult your doctor.
When taking this medication, birth control pills and other hormone-based birth control methods may be less effective in preventing pregnancy. To minimize the risk of unplanned pregnancy, consider using an additional form of birth control, such as a condom, while taking this drug.
If you are pregnant, planning to become pregnant, or breastfeeding, it is essential to discuss the potential benefits and risks of this medication with your doctor to ensure the best possible outcome for you and your baby.
Overdose Information
Overdose Symptoms:
- Gastrointestinal symptoms (e.g., abdominal pain, vomiting, diarrhea)
- Electrolyte imbalance
- Renal impairment (crystalluria, renal failure)
- Convulsions (rare)
What to Do:
Call 1-800-222-1222 (Poison Control Center) immediately or seek emergency medical attention. Treatment is generally supportive and symptomatic. Hemodialysis may be used to remove amoxicillin and clavulanate from circulation.
Drug Interactions
Contraindicated Interactions
- Patients with a history of cholestatic jaundice/hepatic dysfunction associated with amoxicillin/clavulanate.
- Patients with severe renal impairment (CrCl < 30 mL/min) or on hemodialysis.
Major Interactions
- Warfarin (increased INR/bleeding risk)
- Methotrexate (increased methotrexate toxicity due to reduced renal clearance)
- Allopurinol (increased incidence of rash)
Moderate Interactions
- Oral Contraceptives (theoretical reduction in efficacy due to altered gut flora)
- Probenecid (increases and prolongs amoxicillin blood levels by decreasing renal tubular secretion)
- Mycophenolate mofetil (reduced mycophenolic acid concentration)
Monitoring
Baseline Monitoring
Rationale: To prevent severe allergic reactions (e.g., anaphylaxis).
Timing: Prior to initiation of therapy.
Rationale: To determine appropriate dosing and assess contraindications for XR formulation.
Timing: Prior to initiation of therapy, especially in elderly or those with suspected renal impairment.
Rationale: To assess baseline liver status, especially in patients with pre-existing hepatic impairment or history of drug-induced liver injury.
Timing: Prior to initiation of therapy, if clinically indicated.
Routine Monitoring
Frequency: Daily
Target: Resolution of infection symptoms
Action Threshold: Lack of improvement or worsening symptoms may indicate treatment failure, resistance, or alternative diagnosis.
Frequency: Daily
Target: Absence of new infections
Action Threshold: Development of new infections requires evaluation and potential discontinuation or change of therapy.
Frequency: Periodically, if therapy is prolonged or in patients with pre-existing hepatic impairment
Target: Within normal limits or stable
Action Threshold: Significant elevation may require discontinuation.
Frequency: Periodically, if therapy is prolonged or in patients with pre-existing renal impairment
Target: Within normal limits or stable
Action Threshold: Significant changes may require discontinuation or alternative therapy.
Symptom Monitoring
- Skin rash, itching, hives (signs of allergic reaction)
- Swelling of face, lips, tongue, or throat (angioedema)
- Difficulty breathing (anaphylaxis)
- Severe or persistent diarrhea, abdominal pain, fever (Clostridioides difficile-associated diarrhea)
- Yellowing of skin or eyes (jaundice), dark urine, unusual fatigue (hepatic dysfunction)
- Nausea, vomiting, abdominal pain
Special Patient Groups
Pregnancy
Amoxicillin/clavulanate is generally considered safe for use during pregnancy (Pregnancy Category B). Studies in animals have not shown harm to the fetus, and human data do not suggest an increased risk of birth defects. However, it should only be used if clearly needed.
Trimester-Specific Risks:
Lactation
Amoxicillin and clavulanate are excreted in small amounts into breast milk. Generally considered compatible with breastfeeding (Lactation Risk L1).
Pediatric Use
The extended-release formulation (1000/62.5 mg tablet) is not recommended for pediatric patients under 16 years of age due to the high clavulanate content relative to amoxicillin and lack of specific pediatric dosing for this formulation. Other formulations (e.g., suspensions, chewable tablets) are available for pediatric use.
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 selection should be cautious, generally starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and concomitant disease or other drug therapy. Renal function should be monitored, and dose adjusted if necessary, as amoxicillin is substantially excreted by the kidney.
Clinical Information
Clinical Pearls
- Always take Amox-Clav XR at the start of a meal to enhance absorption and minimize gastrointestinal side effects.
- Swallow the tablets whole; do not crush, chew, or break them, as this will disrupt the extended-release mechanism.
- This extended-release formulation is specifically designed for once-daily dosing and is typically used for more severe or resistant infections like community-acquired pneumonia or acute bacterial sinusitis.
- Emphasize the importance of completing the full course of therapy, even if symptoms improve, to prevent the development of antibiotic resistance.
- Counsel patients on the potential for C. difficile-associated diarrhea, which can occur during or even several weeks after antibiotic therapy.
- Not suitable for patients with severe renal impairment (CrCl < 30 mL/min) or on hemodialysis due to the fixed ratio and extended-release properties.
Alternative Therapies
- Respiratory fluoroquinolones (e.g., Levofloxacin, Moxifloxacin) for CAP or sinusitis in specific cases.
- Macrolides (e.g., Azithromycin, Clarithromycin) for atypical pathogens or in penicillin-allergic patients.
- Cephalosporins (e.g., Cefpodoxime, Cefuroxime) for respiratory tract infections.
- Doxycycline for certain respiratory infections.