Question 1

What is the azithromycin dose for a child with an ear infection?

Accepted Answer

The standard 5-day protocol for acute otitis media is 10 mg/kg on day 1, then 5 mg/kg on days 2 through 5.
For a 15 kg child: 150 mg on day 1, then 75 mg daily for 4 days.
Alternatively, the 3-day protocol uses 10 mg/kg daily for 3 days (150 mg/day for a 15 kg child).

Question 2

How much Zithromax 200mg/5ml for a 20 kg child?

Accepted Answer

Day 1: 200 mg = 5 mL of suspension.
Days 2 through 5: 100 mg = 2.5 mL each day.
Give 5 mL on the first day, then 2.5 mL once daily for 4 more days.
Total course: 600 mg over 5 days.

Question 3

Is the 3-day or 5-day azithromycin course better?

Accepted Answer

Both deliver the same total drug exposure (30 mg/kg). The 5-day course is traditional and most commonly prescribed. The 3-day course may improve compliance because it is shorter. Studies show similar effectiveness for most pediatric infections. Your doctor will choose based on the specific infection and child's tolerance.

Question 4

Can azithromycin be taken with food?

Accepted Answer

Azithromycin suspension is best absorbed on an empty stomach: 1 hour before or 2 hours after a meal. However, if your child experiences stomach upset, it can be taken with food without significantly affecting absorption. Azithromycin tablets can be taken with or without food.

Question 5

What are the side effects of azithromycin in children?

Accepted Answer

The most common side effects are diarrhea (5 to 8%), nausea, abdominal pain, and vomiting. These are usually mild and resolve after the course is completed. Rare but serious side effects include allergic reactions and QT prolongation (a heart rhythm concern). Report any rash, difficulty breathing, or irregular heartbeat to your doctor immediately.

Question 6

When is azithromycin used instead of amoxicillin?

Accepted Answer

Azithromycin is typically used when:
(1) The child has a confirmed penicillin allergy.
(2) Amoxicillin has failed after 48 to 72 hours of treatment.
(3) The child cannot tolerate the taste or frequency of amoxicillin dosing.
For strep throat and most ear infections, amoxicillin remains the first-line choice per AAP guidelines.

Weight (kg)	Weight (lbs)	Day 1 (mg)	Day 1 (mL)	Days 2-5 (mg)	Days 2-5 (mL)	Total Course
5 kg	11 lbs	50 mg	1.25 mL	25 mg	0.6 mL	150 mg
8 kg	18 lbs	80 mg	2 mL	40 mg	1 mL	240 mg
10 kg	22 lbs	100 mg	2.5 mL	50 mg	1.25 mL	300 mg
12 kg	26 lbs	120 mg	3 mL	60 mg	1.5 mL	360 mg
15 kg	33 lbs	150 mg	3.75 mL	75 mg	1.9 mL	450 mg
20 kg	44 lbs	200 mg	5 mL	100 mg	2.5 mL	600 mg
25 kg	55 lbs	250 mg	6.25 mL	125 mg	3.1 mL	750 mg
30 kg	66 lbs	300 mg	7.5 mL	150 mg	3.75 mL	900 mg
40 kg	88 lbs	400 mg	10 mL	200 mg	5 mL	1,200 mg
50+ kg	110+ lbs	500 mg max	12.5 mL	250 mg max	6.25 mL	1,500 mg

Calculateur de Dose d'Azithromycine

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Azithromycin Pediatric Dosage Chart (5-Day Protocol)

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