Clarithromycin tablets may be given with or without food.
ADULT DOSAGE GUIDELINES
Clarithromycin Tablets, USP
Infection
Dosage
Duration
(q12h)
(days)
Pharyngitis/Tonsilitis due to
S. pyogenes
250 mg
10
Acute maxillary sinusitis due to
500 mg
14
H. influenza
M. catarrhalis
S. pneumoniae
Acute exacerbation of chronic bronchitis due to
H. influenzae
500 mg
7-14
H. parainfluenzae
500 mg
7
M. catarrhalis
250 mg
7-14
S. pneumoniae
250 mg
7-14
Community-Acquired Pneumonia due to
H. influenzae
250 mg
7
H. parainfluenzae
-
-
M. catarrhalis
-
-
S. pneumoniae
250 mg
7-14
C. pneumoniae
250 mg
7-14
M. pneumoniae
250 mg
7-14
Uncomplicated skin and skin structure
250 mg
7-14
S. aureus
S. pyogenes
H. pylori Eradication to Reduce the Risk of Duodenal Ulcer Recurrence
Triple therapy: Clarithromycin/lansoprazole/amoxicillin
The recommended adult dose is 500 mg clarithromycin, 30 mg lansoprazole, and 1 gram amoxicillin, all given twice daily (ql2h) for 10 or 14 days. (See INDICATIONS ANDUSAGE and CLINICAL STUDIES sections.)
Triple therapy: Clarithromycin/omeprazole/amoxicillin
The recommended adult dose is 500 mg clarithromycin, 20 mg omeprazole, and 1 gram amoxicillin, all given twice daily (ql2h) for 10 days. (See INDICATIONS AND USAGE and CLINICAL STUDIES sections.) In patients with an ulcer present at the time of initiation of therapy, an additional 18 days of omeprazole 20 mg once daily is recommended for ulcer healing and symptom relief.
Dual therapy: Clarithromycin/ omeprazole
The recommended adult dose is 500 mg clarithromycin given three times daily (q8h) and 40 mg omeprazole given once daily (qAM) for 14 days. (See INDICATIONS ANDUSAGE and CLINICAL STUDIES sections.) An additional 14 days of omeprazole 20 mg once daily is recommended for ulcer healing and symptom relief.
Dual therapy: Clarithromycin/ranitidine bismuth citrate
The recommended adult dose is 500 mg clarithromycin given twice daily (ql2h) or three times daily (q8h) and 400 mg ranitidine bismuth citrate given twice daily (ql2h) for 14 days. An additional 14 days of 400 mg twice daily is recommended for ulcer healing and symptom relief. Clarithromycin and ranitidine bismuth citrate combination therapy is not recommended in patients with creatinine clearance less than 25 mL/min. (See INDICATIONS AND USAGE and CLINICAL STUDIES sections.)
Children - The usual recommended daily dosage is 15 mg/kg/day divided ql2h for 10 days.
PEDIATRIC DOSAGE GUIDELINES Based on Body Weight Dosing Calculated on 7.5 mg/kg q12h
Weight
Dose (q12h)
125 mg/5 mL
250 mg/ 5 mL
kg
lb
9
20
62.5 mg
2.5 mL q12h
1.25 mL q12h
17
37
125 mg
5 mL q12h
2.5 mL q12h
25
55
187.5 mg
7.5 mL q12h
3.75 mL q12h
33
73
250 mg
10 mL q12h
5 mL q12h
Clarithromycin may be administered without dosage adjustment in the presence of hepatic impairment if there is normal renal function. However, in the presence of severe renal impairment (CRCL < 30 mL/min), with or without coexisting hepatic impairment, the dose should be halved or the dosing interval doubled.
Mycobacterial infections: Prophylaxis: The recommended dose of clarithromycin for the prevention of disseminated Mycobacterium avium disease is 500 mg b.i.d. In children, the recommended dose is 7.5 mg/kg b.i.d. up to 500 mg b.i.d. No studies of clarithromycin for MAC prophylaxis have been performed in pediatric populations and the doses recommended for prophylaxis are derived from MAC treatment studies in children. Dosing recommendations for children are in the table above.
Treatment: Clarithromycin is recommended as the primary agent for the treatment of disseminated infection due to Mycobacterium avium complex. Clarithromycin should be used in combination with other antimycobacterial drugs that have shown in vitro activity against MAC or clinical benefit in MAC treatment. (See CLINICAL STUDIES.) The recommended dose for mycobacterial infections in adults is 500 mg b.i.d. In children, the recommended dose is 7.5 mg/kg b.i.d. up to 500 mg b.i.d. Dosing recommendations for children are in the table above.
Clarithromycin therapy should continue for life if clinical and mycobacterial improvements are observed.