ZITHROMAX® TABLET, SUSPENSION Dosage and Administration

(azithromycin dihydrate TABLET, SUSPENSION)

2 DOSAGE AND ADMINISTRATION

2.1 Adult Patients

[see Indications and Usage (1.1) and Clinical Pharmacology (12.3)]

Infection*Recommended Dose/Duration of Therapy
*
DUE TO THE INDICATED ORGANISMS [see Indications and Usage (1.1)]

Community-acquired pneumonia Pharyngitis/tonsillitis (second-line therapy)
Skin/skin structure (uncomplicated)

500 mg as a single dose on Day 1, followed by 250 mg once daily on Days 2 through 5

Acute bacterial exacerbations of chronic obstructive pulmonary disease

500 mg once daily for 3 days
OR
500 mg as a single dose on Day 1, followed by 250 mg once daily on Days 2 through 5

Acute bacterial sinusitis

500 mg once daily for 3 days

Genital ulcer disease (chancroid)

One single 1 gram dose

Non-gonococcal urethritis and cervicitis

One single 1 gram dose

Gonococcal urethritis and cervicitis

One single 2 gram dose

ZITHROMAX tablets can be taken with or without food.

2.2 Pediatric Patients1

Infection*Recommended Dose/Duration of Therapy
1 see dosing tables below for maximum doses evaluated by indication
*
DUE TO THE INDICATED ORGANISMS [see Indications and Usage (1.2)]

Acute otitis media

30 mg/kg as a single dose or 10 mg/kg once daily for 3 days or 10 mg/kg as a single dose on Day 1 followed by 5 mg/kg/day on Days 2 through 5.

Acute bacterial sinusitis

10 mg/kg once daily for 3 days.

Community-acquired pneumonia

10 mg/kg as a single dose on Day 1 followed by 5 mg/kg once daily on Days 2 through 5.

Pharyngitis/tonsillitis

12 mg/kg once daily for 5 days.

ZITHROMAX for oral suspension can be taken with or without food.

PEDIATRIC DOSAGE GUIDELINES FOR OTITIS MEDIA, ACUTE BACTERIAL SINUSITIS, AND COMMUNITY-ACQUIRED PNEUMONIA
(Age 6 months and above, [see Use in Specific Populations (8.4)])
Based on Body Weight

OTITIS MEDIA AND COMMUNITY-ACQUIRED PNEUMONIA: (5-Day Regimen)*
Dosing Calculated on 10 mg/kg/day Day 1 and 5 mg/kg/day Days 2 to 5.
Weight100 mg/5 mL200 mg/5 mLTotal mL per
Treatment Course
Total mg per Treatment Course
KgDay 1Days 2–5Day 1Days 2-5
*
Effectiveness of the 3-day or 1-day regimen in pediatric patients with community-acquired pneumonia has not been established.

5

2.5 mL; (½ tsp)

1.25 mL;(¼ tsp)

7.5 mL

150 mg

10

5 mL; (1tsp)

2.5 mL; (½ tsp)

15 mL

300 mg

20

5 mL; (1 tsp)

2.5 mL; (½ tsp)

15 mL

600 mg

30

7.5 mL; (1½ tsp)

3.75 mL; (¾ tsp)

22.5 mL

900 mg

40

10 mL; (2 tsp)

5 mL; (1 tsp)

30 mL

1200 mg

50 and above

12.5 mL; (2½ tsp)

6.25 mL; (1¼ tsp)

37.5 mL

1500 mg

OTITIS MEDIA AND ACUTE BACTERIAL SINUSITIS: (3-Day Regimen)*
Dosing Calculated on 10 mg/kg/day.
Weight100 mg/5 mL200 mg/5 mLTotal mL per Treatment CourseTotal mg per Treatment Course
KgDays 1–3Days 1–3
*
Effectiveness of the 5-day or 1-day regimen in pediatric patients with acute bacterial sinusitis has not been established.

5

2.5 mL; (1/2 tsp)

7.5 mL

150 mg

10

5 mL; (1 tsp)

15 mL

300 mg

20

5 mL (1 tsp)

15 mL

600 mg

30

7.5 mL (1½ tsp)

22.5 mL

900 mg

40

10 mL (2 tsp)

30 mL

1200 mg

50 and above

12.5 mL (2 ½ tsp)

37.5 mL

1500 mg

OTITIS MEDIA: (1-Day Regimen)
Dosing Calculated on 30 mg/kg as a single dose.
Weight200 mg/5 mLTotal mL per Treatment CourseTotal mg per Treatment Course
Kg1-Day Regimen

5

3.75 mL;(3/4 tsp)

3.75 mL

150 mg

10

7.5 mL;(1½ tsp)

7.5 mL

300 mg

20

15 mL;(3 tsp)

15 mL

600 mg

30

22.5 mL;(4½ tsp)

22.5 mL

900 mg

40

30 mL;(6 tsp)

30 mL

1200 mg

50 and above

37.5 mL;(7½ tsp)

37.5 mL

1500 mg

The safety of re-dosing azithromycin in pediatric patients who vomit after receiving 30 mg/kg as a single dose has not been established. In clinical studies involving 487 patients with acute otitis media given a single 30 mg/kg dose of azithromycin, 8 patients who vomited within 30 minutes of dosing were re-dosed at the same total dose.

Pharyngitis/Tonsillitis: The recommended dose of ZITHROMAX for children with pharyngitis/tonsillitis is 12 mg/kg once daily for 5 days. (See chart below.)

PEDIATRIC DOSAGE GUIDELINES FOR PHARYNGITIS/TONSILLITIS
(Age 2 years and above, [see Use in Specific Populations (8.4)])
Based on Body Weight

PHARYNGITIS/TONSILLITIS: (5-Day Regimen)
Dosing Calculated on 12 mg/kg/day for 5 days.
Weight200 mg/5 mLTotal mL per Treatment CourseTotal mg per Treatment Course
KgDay 1–5

8

2.5 mL; (½ tsp)

12.5 mL

500 mg

17

5 mL; (1 tsp)

25 mL

1000 mg

25

7.5 mL; (1½ tsp)

37.5 mL

1500 mg

33

10 mL; (2 tsp)

50 mL

2000 mg

40

12.5 mL; (2½ tsp)

62.5 mL

2500 mg

Constituting instructions for ZITHROMAX Oral Suspension 300, 600, 900, 1200 mg bottles. The table below indicates the volume of water to be used for constitution:

Amount of water to be addedTotal volume after constitution
(azithromycin content)
Azithromycin concentration after constitution

9 mL (300 mg)

15 mL (300 mg)

100 mg/5 mL

9 mL (600 mg)

15 mL (600 mg)

200 mg/5 mL

12 mL (900 mg)

22.5 mL (900 mg)

200 mg/5 mL

15 mL (1200 mg)

30 mL (1200 mg)

200 mg/5 mL

Shake well before each use. Oversized bottle provides shake space. Keep tightly closed.

After mixing, store suspension at 5° to 30°C (41° to 86°F) and use within 10 days. Discard after full dosing is completed.

Find ZITHROMAX® TABLET, SUSPENSION medical information:

Find ZITHROMAX® TABLET, SUSPENSION medical information:

Our scientific content is evidence-based, scientifically balanced and non-promotional. It undergoes rigorous internal medical review and is updated regularly to reflect new information.

ZITHROMAX® TABLET, SUSPENSION Quick Finder

Prescribing Information
Download Prescribing Information

Health Professional Information

Dosage and Administration

2 DOSAGE AND ADMINISTRATION

2.1 Adult Patients

[see Indications and Usage (1.1) and Clinical Pharmacology (12.3)]

Infection*Recommended Dose/Duration of Therapy
*
DUE TO THE INDICATED ORGANISMS [see Indications and Usage (1.1)]

Community-acquired pneumonia Pharyngitis/tonsillitis (second-line therapy)
Skin/skin structure (uncomplicated)

500 mg as a single dose on Day 1, followed by 250 mg once daily on Days 2 through 5

Acute bacterial exacerbations of chronic obstructive pulmonary disease

500 mg once daily for 3 days
OR
500 mg as a single dose on Day 1, followed by 250 mg once daily on Days 2 through 5

Acute bacterial sinusitis

500 mg once daily for 3 days

Genital ulcer disease (chancroid)

One single 1 gram dose

Non-gonococcal urethritis and cervicitis

One single 1 gram dose

Gonococcal urethritis and cervicitis

One single 2 gram dose

ZITHROMAX tablets can be taken with or without food.

2.2 Pediatric Patients1

Infection*Recommended Dose/Duration of Therapy
1 see dosing tables below for maximum doses evaluated by indication
*
DUE TO THE INDICATED ORGANISMS [see Indications and Usage (1.2)]

Acute otitis media

30 mg/kg as a single dose or 10 mg/kg once daily for 3 days or 10 mg/kg as a single dose on Day 1 followed by 5 mg/kg/day on Days 2 through 5.

Acute bacterial sinusitis

10 mg/kg once daily for 3 days.

Community-acquired pneumonia

10 mg/kg as a single dose on Day 1 followed by 5 mg/kg once daily on Days 2 through 5.

Pharyngitis/tonsillitis

12 mg/kg once daily for 5 days.

ZITHROMAX for oral suspension can be taken with or without food.

PEDIATRIC DOSAGE GUIDELINES FOR OTITIS MEDIA, ACUTE BACTERIAL SINUSITIS, AND COMMUNITY-ACQUIRED PNEUMONIA
(Age 6 months and above, [see Use in Specific Populations (8.4)])
Based on Body Weight

OTITIS MEDIA AND COMMUNITY-ACQUIRED PNEUMONIA: (5-Day Regimen)*
Dosing Calculated on 10 mg/kg/day Day 1 and 5 mg/kg/day Days 2 to 5.
Weight100 mg/5 mL200 mg/5 mLTotal mL per
Treatment Course
Total mg per Treatment Course
KgDay 1Days 2–5Day 1Days 2-5
*
Effectiveness of the 3-day or 1-day regimen in pediatric patients with community-acquired pneumonia has not been established.

5

2.5 mL; (½ tsp)

1.25 mL;(¼ tsp)

7.5 mL

150 mg

10

5 mL; (1tsp)

2.5 mL; (½ tsp)

15 mL

300 mg

20

5 mL; (1 tsp)

2.5 mL; (½ tsp)

15 mL

600 mg

30

7.5 mL; (1½ tsp)

3.75 mL; (¾ tsp)

22.5 mL

900 mg

40

10 mL; (2 tsp)

5 mL; (1 tsp)

30 mL

1200 mg

50 and above

12.5 mL; (2½ tsp)

6.25 mL; (1¼ tsp)

37.5 mL

1500 mg

OTITIS MEDIA AND ACUTE BACTERIAL SINUSITIS: (3-Day Regimen)*
Dosing Calculated on 10 mg/kg/day.
Weight100 mg/5 mL200 mg/5 mLTotal mL per Treatment CourseTotal mg per Treatment Course
KgDays 1–3Days 1–3
*
Effectiveness of the 5-day or 1-day regimen in pediatric patients with acute bacterial sinusitis has not been established.

5

2.5 mL; (1/2 tsp)

7.5 mL

150 mg

10

5 mL; (1 tsp)

15 mL

300 mg

20

5 mL (1 tsp)

15 mL

600 mg

30

7.5 mL (1½ tsp)

22.5 mL

900 mg

40

10 mL (2 tsp)

30 mL

1200 mg

50 and above

12.5 mL (2 ½ tsp)

37.5 mL

1500 mg

OTITIS MEDIA: (1-Day Regimen)
Dosing Calculated on 30 mg/kg as a single dose.
Weight200 mg/5 mLTotal mL per Treatment CourseTotal mg per Treatment Course
Kg1-Day Regimen

5

3.75 mL;(3/4 tsp)

3.75 mL

150 mg

10

7.5 mL;(1½ tsp)

7.5 mL

300 mg

20

15 mL;(3 tsp)

15 mL

600 mg

30

22.5 mL;(4½ tsp)

22.5 mL

900 mg

40

30 mL;(6 tsp)

30 mL

1200 mg

50 and above

37.5 mL;(7½ tsp)

37.5 mL

1500 mg

The safety of re-dosing azithromycin in pediatric patients who vomit after receiving 30 mg/kg as a single dose has not been established. In clinical studies involving 487 patients with acute otitis media given a single 30 mg/kg dose of azithromycin, 8 patients who vomited within 30 minutes of dosing were re-dosed at the same total dose.

Pharyngitis/Tonsillitis: The recommended dose of ZITHROMAX for children with pharyngitis/tonsillitis is 12 mg/kg once daily for 5 days. (See chart below.)

PEDIATRIC DOSAGE GUIDELINES FOR PHARYNGITIS/TONSILLITIS
(Age 2 years and above, [see Use in Specific Populations (8.4)])
Based on Body Weight

PHARYNGITIS/TONSILLITIS: (5-Day Regimen)
Dosing Calculated on 12 mg/kg/day for 5 days.
Weight200 mg/5 mLTotal mL per Treatment CourseTotal mg per Treatment Course
KgDay 1–5

8

2.5 mL; (½ tsp)

12.5 mL

500 mg

17

5 mL; (1 tsp)

25 mL

1000 mg

25

7.5 mL; (1½ tsp)

37.5 mL

1500 mg

33

10 mL; (2 tsp)

50 mL

2000 mg

40

12.5 mL; (2½ tsp)

62.5 mL

2500 mg

Constituting instructions for ZITHROMAX Oral Suspension 300, 600, 900, 1200 mg bottles. The table below indicates the volume of water to be used for constitution:

Amount of water to be addedTotal volume after constitution
(azithromycin content)
Azithromycin concentration after constitution

9 mL (300 mg)

15 mL (300 mg)

100 mg/5 mL

9 mL (600 mg)

15 mL (600 mg)

200 mg/5 mL

12 mL (900 mg)

22.5 mL (900 mg)

200 mg/5 mL

15 mL (1200 mg)

30 mL (1200 mg)

200 mg/5 mL

Shake well before each use. Oversized bottle provides shake space. Keep tightly closed.

After mixing, store suspension at 5° to 30°C (41° to 86°F) and use within 10 days. Discard after full dosing is completed.

Medication Guide

Health Professional Information

{{section_name_patient}}

{{section_body_html_patient}}

Resources

Didn’t find what you were looking for? Contact us.

MI Digital Assistant

Chat online with Pfizer Medical Information regarding your inquiry on a Pfizer medicine.

Call 800-438-1985*

*Speak with a Pfizer Medical Information Professional regarding your medical inquiry. Available 9AM-5Pm ET Monday to Friday; excluding holidays.

Medical Inquiry

Submit a medical question for Pfizer prescription products.

Report Adverse Event

Pfizer Safety

To report an adverse event related to the Pfizer-BioNTech COVID-19 Vaccine, and you are not part of a clinical trial* for this product, click the link below to submit your information:

Pfizer Safety Reporting Site

*If you are involved in a clinical trial for this product, adverse events should be reported to your coordinating study site.

If you cannot use the above website, or would like to report an adverse event related to a different Pfizer product, please call Pfizer Safety at (800) 438-1985.

FDA Medwatch

You may also contact the U.S. Food and Drug Administration (FDA) directly to report adverse events or product quality concerns either online at www.fda.gov/medwatch or call (800) 822-7967.