Amoxicillin

AMOXICILLIN- amoxicillin tablet, chewable
Denton Pharma, Inc. DBA Northwind Pharmaceuticals

1 INDICATIONS AND USAGE

1.1 Infections of the Ear, Nose, and Throat

Amoxicillin capsules, amoxicillin for oral suspension, amoxicillin tablets (chewable) 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.

1.2 Infections of the Genitourinary Tract

Amoxicillin capsules, amoxicillin for oral suspension, amoxicillin tablets (chewable) are indicated in the treatment of infections due to susceptible (ONLY β-lactamase–negative) isolates of Escherichia coli, Proteus mirabilis , or Enterococcus faecalis.

1.3 Infections of the Skin and Skin Structure

Amoxicillin capsules, amoxicillin for oral suspension, amoxicillin tablets (chewable) are indicated in the treatment of infections due to susceptible (ONLY β-lactamase-negative) isolates of Streptococcus spp. (α- and β-hemolytic isolates only), Staphylococcus spp., or E. coli.

1.4 Infections of the Lower Respiratory Tract

Amoxicillin capsules, amoxicillin for oral suspension, amoxicillin tablets (chewable) are indicated in the treatment of infections due to susceptible (ONLY β-lactamase-negative) isolates of Streptococcus spp. (α- and β-hemolytic isolates only), S. pneumoniae, Staphylococcus spp., or H. influenzae.

1.5 Helicobacter pylori Infection

Triple therapy for Helicobacter pylori with clarithromycin and lansoprazole:

Amoxicillin, in combination with clarithromycin plus lansoprazole as triple therapy, is indicated for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or 1 year history of a duodenal ulcer) to eradicate H. pylori. Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence.

Dual therapy for H. pylori with lansoprazole:

Amoxicillin, in combination with lansoprazole delayed-release capsules as dual therapy, is indicated for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or 1 year history of a duodenal ulcer) who are either allergic or intolerant to clarithromycin or in whom resistance to clarithromycin is known or suspected. (See the clarithromycin package insert, MICROBIOLOGY.) Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence.

1.6 Usage

To reduce the development of drug-resistant bacteria and maintain the effectiveness of amoxicillin and other antibacterial drugs, amoxicillin should be used only to treat infections that are proven or strongly suspected to be caused by 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.

2 DOSAGE AND ADMINISTRATION

2.1 Dosing for Adult and Pediatric Patients > 3 Months of Age

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. Dosing Recommendations for Adult and Pediatric Patients > 3 Months of Age
*
Dosing for infections caused by bacteria that are intermediate in their susceptibility to amoxicillin should follow the recommendations for severe infections.
The children’s dosage is intended for individuals whose weight is less than 40 kg. Children weighing 40 kg or more should be dosed according to the adult recommendations.

Infection

Severity *

Usual Adult Dose

Usual Dose for Children > 3 Months

Ear/Nose/Throat

Skin/Skin Structure

Genitourinary Tract

Mild/Moderate

500 mg every 12 hours
or

250 mg every 8 hours

25 mg/kg/day in divided doses every 12 hours

or

20 mg/kg/day in divided doses

every 8 hours

Severe

875 mg every 12 hours
or

500 mg every 8 hours

45 mg/kg/day in divided doses every 12 hours

or

40 mg/kg/day in divided doses

every 8 hours

Lower Respiratory

Tract

Mild/Moderate or

Severe

875 mg every 12 hours
or

500 mg every 8 hours

45 mg/kg/day in divided doses

every 12 hours

or

40 mg/kg/day in divided doses

every 8 hours

2.2 Dosing in Neonates and Infants Aged ≤ 12 Weeks (≤ 3 Months)

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. Due to incompletely developed renal function affecting elimination of amoxicillin in this age group, the recommended upper dose of amoxicillin is 30 mg/kg/day divided every 12 hours. There are currently no dosing recommendations for pediatric patients with impaired renal function.

2.3 Dosing for H. pylori Infection

Triple Therapy: The recommended adult oral dose is 1 gram amoxicillin, 500 mg clarithromycin, and 30 mg lansoprazole, all given twice daily (every 12 hours) for 14 days.

Dual Therapy: The recommended adult oral dose is 1 gram amoxicillin and 30 mg lansoprazole, each given three times daily (every 8 hours) for 14 days.

Please refer to clarithromycin and lansoprazole full prescribing information.

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