Amoxicillin

Adults and Pediatric Patients Upper Respiratory Tract Infections of the Ear, Nose, and Throat: Amoxicillin tablets are indicated in the treatment of infections due to susceptible (ONLY β-lactamase-negative) isolates of Streptococcus species. (α- and β-hemolytic isolates only), Streptococcus pneumoniae , Staphylococcus spp., or Haemophilus influenzae . Infections of the Genitourinary Tract: Amoxicillin tablets are indicated in the treatment of infections due to susceptible (ONLY β-lactamase–negative) isolates of Escherichia coli, Proteus mirabilis , or Enterococcus faecalis . …

• In Adults, 750 to 1750 mg/day in divided doses every 8 to 12 hours
• In Pediatric Patients over 3 Months of Age, 20 to 45 mg/kg/day in divided doses every 8 to 12 hours
• Refer to full prescribing information for specific dosing regimens
• The upper dose for neonates and infants aged 3 months or younger is 30 mg/kg/day divided every 12 hours
• Dosing for H. pylori Infection (in Adults): Triple therapy: 1 gram amoxicillin, 500 mg clarithromycin, and 30 mg lansoprazole, all given twice daily (every 12 hours) for 14 days
• Dual therapy: 1 gram amoxicillin and 30 mg lansoprazole, each given three times daily (every 8 hours) for 14 days
• Reduce the dose in patients with severe renal impairment (GFR greater than 30 mL/min)
• Important Administration Instructions To minimize the potential for gastrointestinal intolerance, amoxicillin tablets should be taken at the start of a meal
• Dosage for Adults and Pediatric Patients Aged 3 Months (12 weeks) and Older Treatment should be continued for a minimum of 48 to 72 hours beyond the time that the patient becomes asymptomatic, or evidence of bacterial eradication has been obtained
• It is recommended that there be at least 10 days’ treatment for any infection caused by Streptococcus pyogenes to prevent the occurrence of acute rheumatic fever
• In some infections, therapy may be required for several weeks
• It may be necessary to continue clinical and/or bacteriological follow-up for several months after cessation of therapy
• Table 1. …

500 mg Tablets are pink colored, capsule shaped, film coated tablets debossed with “A” on one side and “66” on the other side. 875 mg Tablets are pink colored, capsule shaped, film coated tablets debossed with “A” on one side and with a score line in between “6” and “7” on the other side. Tablets: 500 mg and 875 mg (3)

• The safety and effectiveness of amoxicillin
• For the treatment of upper respiratory tract infections, and infections of the genitourinary tract, skin and skin structure and lower respiratory tract have been established
• In pediatric patients
• The safety and effectiveness of amoxicillin
• For the treatment of H.Pylori infection have not been established
• In pediatric patients
• Because of incompletely developed renal function in neonates and young infants, the elimination of amoxicillin may be delayed. …

An analysis of clinical studies of amoxicillin was conducted to determine whether subjects aged 65 and over respond differently from younger subjects. These analyses have not identified differences in responses between the elderly and younger patients, but a greater sensitivity of some older individuals cannot be ruled out. …

• Administration Instructions Advise patients that amoxicillin tablets may be taken every 8 hours or every 12 hours, depending on the dose prescribed
• Allergic Reactions Counsel patients that amoxicillin tablets contains a penicillin class drug product that can cause allergic reactions in some individuals
• Severe Cutaneous Adverse Reactions (SCAR) Advise patients about the signs and symptoms of serious skin manifestations
• Instruct patients to stop taking amoxicillin tablets immediately and promptly report the first signs or symptoms of skin rash, mucosal lesions, or any other sign of hypersensitivity [see Warnings and Precautions ] . …

• Amoxicillin tablets are contraindicated in patients who have experienced a serious hypersensitivity reaction (e.g., anaphylaxis or Stevens-Johnson syndrome) to amoxicillin tablets or to other β-lactam antibacterial drugs (e.g., penicillins and cephalosporins)
• History of a serious hypersensitivity reaction (e.g., anaphylaxis or Stevens-Johnson syndrome) to amoxicillin tablets or to other beta-lactams (e.g., penicillins or cephalosporins)

Co-administration with probenicid is not recommended. (7.1) Concomitant use of amoxicillin and oral anticoagulants may increase the prolongation of prothrombin time. (7.2) Co-administration with allopurinol increases the risk of rash. (7.3) Amoxicillin may reduce the efficacy of oral contraceptives. (7.4) 7.1 Probenecid Probenecid decreases the renal tubular secretion of amoxicillin. Concurrent use of amoxicillin and probenecid may result in increased and prolonged blood levels of amoxicillin. 7.2 Oral Anticoagulants Abnormal prolongation of prothrombin time (increased international normalized ratio [INR]) has been reported in patients receiving amoxicillin and oral anticoagulants. …

Anaphylactic reactions: Serious and occasionally fatal anaphylactic reactions have been reported in patients on penicillin therapy, including amoxicillin. Discontinue amoxicillin if a reaction occurs ( 5.1 ). Severe cutaneous adverse reactions (SCAR): Monitor closely. Discontinue if rash progresses. ( 5.2 ) Clostridioides difficile -associated diarrhea (CDAD) (ranging from mild diarrhea to fatal colitis): Evaluate if diarrhea occurs. ( 5.3 ) 5.1 Anaphylactic Reactions Serious and occasionally fatal hypersensitivity (anaphylactic) reactions have been reported in patients on penicillin therapy including amoxicillin. …

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) ] Clostridioides difficile- Associated Diarrhea (CDAD) [see Warnings and Precautions (5.3) ] The most common adverse reactions (greater than 1%) observed in clinical trials of amoxicillin tablets or for oral suspension were diarrhea, rash, vomiting, and nausea. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Aurobindo Pharma USA, Inc. at 1-866-850-2876 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . …

8.1 Pregnancy Teratogenic Effects : Pregnancy Category B. Reproduction studies have been performed in mice and rats at doses up to 2000 mg/kg (3 and 6 times the 3 g human dose, based on body surface area). There was no evidence of harm to the fetus due to amoxicillin. There are, however, no adequate and well-controlled studies in pregnant women. …

In case of overdosage, discontinue amoxicillin, 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. Interstitial nephritis resulting in oliguric renal failure has been reported in a small number of patients after overdosage with amoxicillin 1 . Crystalluria, in some cases leading to renal failure, has also been reported after amoxicillin overdosage in adult and pediatric patients. …

Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.