Amoxicillin/Clav Pot

FDA Drug Information • Also known as: Amoxicillin/Clav Pot

Brand Names
Amoxicillin/Clav Pot
Route
ORAL
Dosage Form
TABLET, FILM COATED
Product Type
HUMAN PRESCRIPTION DRUG

Description

Amoxicillin and clavulanate potassium tablets, USP is an oral antibacterial combination consisting of amoxicillin and the beta‑lactamase inhibitor, clavulanate potassium (the potassium salt of clavulanic acid). Amoxicillin, USP is an analog of ampicillin, derived from the basic penicillin nucleus, 6‑aminopenicillanic acid. The amoxicillin molecular formula is C 16H 19N 3O 5S

  • 3H 2O, and the molecular weight is 419.46. Chemically, amoxicillin, USP is ( 2S,5R,6R)-6-[( R)-(-)-2-Amino-2-( p-hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid trihydrate and may be represented structurally as: Clavulanic acid is produced by the fermentation of Streptomyces clavuligerus. It is a beta-lactam structurally related to the penicillins and possesses the ability to inactivate some beta‑lactamases by blocking the active sites of these enzymes. The clavulanate potassium molecular formula is C 8H 8KNO 5, and the molecular weight is 237.25. Chemically, clavulanate potassium, USP is potassium ( Z)-( 2R,5R)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]-heptane-2-carboxylate and may be represented structurally as: Amoxicillin and Clavulanate Potassium Tablets, USP: 250 mg/125 mg: Each tablet contains 250 mg of amoxicillin, USP as the trihydrate, and 125 mg of clavulanic acid (equivalent to 149 mg of clavulanate potassium, USP). 500 mg/125 mg:Each tablet contains 500 mg of amoxicillin, USP as the trihydrate, and 125 mg of clavulanic acid (equivalent to 149 mg of clavulanate potassium, USP). 875 mg/125 mg:Each tablet contains 875 mg of amoxicillin, USP as the trihydrate, and 125 mg of clavulanic acid (equivalent to 149 mg of clavulanate potassium, USP). Inactive Ingredients:colloidal silicon dioxide, ethylcellulose, hypromellose, magnesium stearate, microcrystalline cellulose, propylene glycol, sodium starch glycolate, talc and titanium dioxide. Each tablet of amoxicillin and clavulanate potassium tablets contains 0.63 mEq potassium.

  • What Is Amoxicillin/Clav Pot Used For?

    Amoxicillin and clavulanate potassium tablets are indicated for the treatment of infections in adults and pediatric patients, due to susceptible isolates of the designated bacteria in the conditions listed below:

  • Lower Respiratory Tract Infections- caused by beta‑lactamase‑producing isolates of Haemophilus influenzaeand Moraxella catarrhalis.
  • Acute Bacterial Otitis Media- caused by beta‑lactamase‑producing isolates of H. influenzaeand M. catarrhalis.
  • Sinusitis- caused by beta‑lactamase‑producing isolates of H. influenzaeand M. catarrhalis.
  • Skin and Skin Structure Infections- caused by beta‑lactamase‑producing isolates of Staphylococcus aureus, Escherichia coli,and Klebsiellaspecies.
  • Urinary Tract Infections- caused by beta‑lactamase‑producing isolates of E. coli, Klebsiellaspecies, and Enterobacterspecies. Limitations of Use When susceptibility test results show susceptibility to amoxicillin, indicating no beta-lactamase production, amoxicillin and clavulanate potassium tablets should not be used. Usage To reduce the development of drug‑resistant bacteria and maintain the effectiveness of amoxicillin and clavulanate potassium tablets and other antibacterial drugs, amoxicillin and clavulanate potassium tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.

  • Dosage and Administration

    2.1 Important Administration Instructions Amoxicillin and clavulanate potassium tablets may be taken without regard to meals; however, absorption of clavulanate potassium is enhanced when amoxicillin and clavulanate potassium tablets are administered at the start of a meal. To minimize the potential for gastrointestinal intolerance, amoxicillin and clavulanate potassium tablets should be taken at the start of a meal. 2.2 Adult Patients See dosing regimens of amoxicillin and clavulanate potassium (based on the amoxicillin component) provided in Table 1 below. Table 1. Dosing Regimens of Amoxicillin and Clavulanate Potassium in Adult Patients TYPE OF INFECTION DOSING REGIMEN OFAMOXICILLIN AND CLAVULANATE POTASSIUM Severe infections and infections of the respiratory tract one 875 mg tablet aof amoxicillin and clavulanate potassium every 12 hours or one 500 mg tablet b,cof amoxicillin and clavulanate potassium every 8 hours Less severe infections one 500 mg tablet b,cof amoxicillin and clavulanate potassium every 12 hours or one 250 mg tablet dof amoxicillin and clavulanate potassium every 8 hours a Adults who have difficulty swallowing may be given the amoxicillin and clavulanate potassium 200 mg/28.5 mg per 5 mL suspension or the amoxicillin and clavulanate potassium 400 mg/57 mg per 5 mL suspension may be used in place of the 875 mg/125 mg tablet. b Adults who have difficulty swallowing may be given the amoxicillin and clavulanate potassium 125 mg/31.25 mg per 5 mL suspension or amoxicillin and clavulanate potassium 250 mg/62.5 mg per 5 mL suspension in place of the 500 mg/125 mg tablet. c Two amoxicillin and clavulanate potassium 250 mg/125 mg tablets are NOTsubstitutable with one 500 mg/125 mg amoxicillin and clavulanate potassium tablet [see Dosage and Administration ( 2.6)] . d Amoxicillin and clavulanate potassium 250 mg/125 mg tablet is NOTsubstitutable with amoxicillin and clavulanate potassium 250 mg/62.5 mg chewable tablet [see Dosage and Administration ( 2.6)] . 2.3 Pediatric Patients Based on the amoxicillin component, amoxicillin and clavulanate potassium should be dosed as follows: Neonates and Infants Aged less than 12 weeks (less than 3 months): See dosing regimens of amoxicillin and clavulanate potassium provided in Table 2 below. Table 2: Dosing Regimens of Amoxicillin and Clavulanate Potassium in Neonates and Infants Aged Less than 12 Weeks (Less than 3 Months) PATIENT POPULATION DOSING REGIMEN Amoxicillin and Clavulanate Potassium 125 mg/31.25 mg per 5 mL for oral suspensiona Neonates and Infants aged less than 12 weeks (less than 3 months) 30 mg/kg/day every 12 hours a Experience with the amoxicillin and clavulanate potassium for oral suspension 200 mg/28.5 mg per 5 mL formulation in this age group is limited, and thus, use of the amoxicillin and clavulanate potassium 125 mg/31.25 mg per 5 mL for oral suspension is recommended. Patients Aged 12 weeks (3 months) and Older and Weighing Less than 40 kg: See dosing regimens...

    Side Effects (Adverse Reactions)

    The following are discussed in more detail in other sections of the labeling: Anaphylactic reactions [see Warnings and Precautions ( 5.1)] Severe Cutaneous Adverse Reactions [see Warnings and Precautions ( 5.2)] Drug-Induced Enterocolitis Syndrome (DIES) [see Warnings and Precautions ( 5.3)] Hepatic Dysfunction [see Warnings and Precautions ( 5.4)] Clostridioides difficileAssociated Diarrhea (CDAD) [see Warnings and Precautions ( 5.5)] 6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The most frequently reported adverse reactions were diarrhea/loose stools (9%), nausea (3%), skin rashes and urticaria (3%), vomiting (1%) and vaginitis (1%). Less than 3% of patients discontinued therapy because of drug‑related adverse reactions. The overall incidence of adverse reactions, and in particular diarrhea, increased with the higher recommended dose. Other less frequently reported adverse reactions (less than 1%) include: Abdominal discomfort, flatulence, and headache. In pediatric patients (aged 2 months to 12 years), 1 US/Canadian clinical trial was conducted which compared 45/6.4 mg/kg/day (divided every 12 hours) of amoxicillin and clavulanate potassium for 10 days versus 40/10 mg/kg/day (divided every 8 hours) of amoxicillin and clavulanate potassium for 10 days in the treatment of acute otitis media. A total of 575 patients were enrolled, and only the suspension formulations were used in this trial. Overall, the adverse reactions seen were comparable to that noted above; however, there were differences in the rates of diarrhea, skin rashes/urticaria, and diaper area rashes [see Clinical Studies ( 14.2)] . 6.2 Postmarketing Experience In addition to adverse reactions reported from clinical trials, the following have been identified during postmarketing use of amoxicillin and clavulanate potassium. Because they are reported voluntarily from a population of unknown size, estimates of frequency cannot be made. These events have been chosen for inclusion due to a combination of their seriousness, frequency of reporting, or potential causal connection to amoxicillin and clavulanate potassium. Gastrointestinal:Drug-induced enterocolitis syndrome (DIES), indigestion, gastritis, stomatitis, glossitis, black “hairy” tongue, mucocutaneous candidiasis, enterocolitis, and hemorrhagic/pseudomembranous colitis. Onset of pseudomembranous colitis symptoms may occur during or after antibacterial treatment [see Warnings and Precautions ( 5.5)]. Immune:Hypersensitivity reactions, anaphylactic/anaphylactoid reactions (including shock), angioedema, serum sickness-like reactions (urticaria or skin rash accompanied by arthritis, arthralgia, myalgia, and frequently fever), hypersensitivity vasculitis [see Warnings and Precautions ( 5.1)]. Skin and Appendages:Rashes, pruritus, urticaria, erythema multiforme, SJS, TEN, DRESS, AGEP, exfoliative dermatitis, and linear IgA bullous dermatosis. Liver:Hepatic dysfunction, including hepatitis and cholestatic jaundice, increases in serum transaminases (AST and/or ALT), serum bilirubin, and/or alkaline phosphatase, has been reported with amoxicillin and clavulanate potassium. It has been reported more commonly in the elderly, in males, or in patients on prolonged treatment. The histologic findings on liver biopsy have consisted of predominantly cholestatic, hepatocellular, or mixed cholestatic hepatocellular changes. The onset of signs/symptoms of hepatic dysfunction may occur during or several weeks after therapy has been discontinued. The hepatic dysfunction, which may be severe, is usually reversible. Deaths have been reported [see Contraindications ( 4.2), Warnings and Precautions ( 5.4)] . Renal:Interstitial nephritis, hematuria, and crystalluria have been reported [see...

    Drug Interactions

    7.1 Probenecid Probenecid decreases the renal tubular secretion of amoxicillin but does not delay renal excretion of clavulanic acid. Concurrent use with amoxicillin and clavulanate potassium tablets may result in increased and prolonged blood concentrations of amoxicillin. Co-administration of probenecid is not recommended. 7.2 Oral Anticoagulants Abnormal prolongation of prothrombin time (increased international normalized ratio [INR]) has been reported in patients receiving amoxicillin and oral anticoagulants. Appropriate monitoring should be undertaken when anticoagulants are prescribed concurrently with amoxicillin and clavulanate potassium tablets. Adjustments in the dose of oral anticoagulants may be necessary to maintain the desired level of anticoagulation. 7.3 Allopurinol The concurrent administration of allopurinol and amoxicillin increases the incidence of rashes in patients receiving both drugs as compared to patients receiving amoxicillin alone. It is not known whether this potentiation of amoxicillin rashes is due to allopurinol or the hyperuricemia present in these patients. 7.4 Oral Contraceptives Amoxicillin and clavulanate potassium may affect intestinal flora, leading to lower estrogen reabsorption and reduced efficacy of combined oral estrogen/progesterone contraceptives. 7.5 Effects on Laboratory Tests High urine concentrations of amoxicillin may result in false-positive reactions when testing for the presence of glucose in urine using CLINITEST ®, Benedict’s Solution, or Fehling’s Solution. Since this effect may also occur with amoxicillin and clavulanate potassium tablets, it is recommended that glucose tests based on enzymatic glucose oxidase reactions be used. Following administration of amoxicillin to pregnant women, a transient decrease in plasma concentration of total conjugated estriol, estriol-glucuronide, conjugated estrone, and estradiol has been noted.

    Contraindications

    4.1 Serious Hypersensitivity Reactions Amoxicillin and clavulanate potassium tablets are contraindicated in patients with a history of serious hypersensitivity reactions (e.g., anaphylaxis or Stevens-Johnson syndrome) to amoxicillin, clavulanate or to other beta‑lactam antibacterial drugs (e.g., penicillins and cephalosporins). 4.2 Cholestatic Jaundice/Hepatic Dysfunction Amoxicillin and clavulanate potassium tablets are contraindicated in patients with a previous history of cholestatic jaundice/hepatic dysfunction associated with amoxicillin and clavulanate potassium.

    Overdosage

    In case of overdosage, discontinue medication, treat symptomatically, and institute supportive measures as required. A prospective study of 51 pediatric patients at a poison-control center suggested that overdosages of less than 250 mg/kg of amoxicillin are not associated with significant clinical symptoms 1. Interstitial nephritis resulting in oliguric renal failure has been reported in patients after overdosage with amoxicillin and clavulanate potassium. Crystalluria, in some cases leading to renal failure, has also been reported after amoxicillin and clavulanate potassium overdosage in adult and pediatric patients. In case of overdosage, adequate fluid intake and diuresis should be maintained to reduce the risk of amoxicillin and clavulanate potassium crystalluria. Renal impairment appears to be reversible with cessation of drug administration. High blood levels may occur more readily in patients with impaired renal function because of decreased renal clearance of amoxicillin and clavulanate potassium. Amoxicillin and clavulanate potassium may be removed from circulation by hemodialysis [see Dosage and Administration ( 2.4)] .

    How Supplied

    Amoxicillin and Clavulanate Potassium Tablets, USP: 250 mg/125 mg Tablets: White to off-white colored, capsule shaped, biconvex, film-coated tablets, debossed with “I 05” on one side and plain on the other side. Each tablet contains 250 mg of amoxicillin as the trihydrate and 125 mg of clavulanic acid as the potassium salt (equivalent to 149 mg of clavulanate potassium). Bottles of 30: NDC 42571-160-30 Bottles of 100: NDC 42571-160-01 Carton of 100 (10x10 unit-dose tablets): NDC 42571-160-11 500 mg/125 mg Tablets: White to off-white colored, capsule shaped, biconvex, film-coated tablets debossed with “I 06” on one side and plain on the other side. Each tablet contains 500 mg of amoxicillin as the trihydrate and 125 mg of clavulanic acid as the potassium salt (equivalent to 149 mg of clavulanate potassium). Bottles of 14: NDC 72189-638-14 Bottles of 100: NDC 42571-161-01 Carton of 100 (10x10 unit-dose tablets): NDC 42571-161-11 875 mg/125 mg Tablets: White to off-white colored, capsule shaped, biconvex, film-coated tablets debossed with “I 07” on one side and score line on the other side. Each tablet contains 875 mg of amoxicillin as the trihydrate and 125 mg of clavulanic acid as the potassium salt (equivalent to 149 mg of clavulanate potassium). Bottles of 20: NDC 42571-162-42 Bottles of 100: NDC 42571-162-01 Carton of 40 (4x10 unit-dose tablets): NDC 42571-162-44

    About This Information

    This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.

    What are side effects?

    Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.

    What are drug interactions?

    Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.