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Pediatric Dosing Guidelinesfor Doxycycline, Ciprofloxacin, and Amoxicillin

CIPROFLOXACIN

Children (based on availability of 250 mg/5mL (100 mL) suspension and 500 mg tablets):

Age
/ Approximate Weight (lbs) /
Ciprofloxacin Dose
/ 250 mg/5mL suspension
Newborn – 1 month / 0-9 lbs / 63 mg
every 12 hours / ¼ teaspoon every 12 hours
(1 bottle)
Over 1 months – 6 months / Over 9 - 18 lbs / 125 mg
every 12 hours / ½ teaspoon every 12 hours
(1 bottle)
Over 6 months – 2 years / Over 18 - 27.5 lbs / 188 mg
every 12 hours / ¾ teaspoon every 12 hours
(1 bottle)
Over 2 - 4 years / Over 27.5 - 37 lbs / 250 mg
every 12 hours / 1 teaspoon every 12 hours
(1 bottle)
Over 4 - 5 years / Over 37 – 46 lbs / 313 mg
every 12 hours / 1 ¼ teaspoon every 12 hours
(2 bottles)
Over 5 - 7 years / Over 46 -55 lbs / 375 mg
every 12 hours / 1 ½ teaspoon every 12 hours
(2 bottles)
Over 7 - 8 years / Over 55 -64 lbs / 438 mg
every 12 hours / 1 ¾ teaspoons every 12 hours
(2 bottles)
Over 8 years / Over 64 lbs / 500 mg
every 12 hours / 2 teaspoons every 12 hours
(2 bottles)

DOXYCYCLINE

Children (Based on availability of 100 mg tablets and 25 mg/5 mL (60 mL) suspension):

Age
/ Approximate Weight (lbs) /
Doxycycline
Dose
/ 25 mg/5mL suspension
Newborn – 3 months / 0-12.5 lbs / 12.5 mg
every 12 hours / ½ teaspoon every 12 hours
(1 bottle)
Over 3 months – 1 year / Over 12.5 – 25 lbs / 25 mg
every 12 hours / 1 teaspoon every 12 hours
(2 bottles)
Over 1 - 4 years / Over 25-37.5 lbs / 37 mg
every 12 hours / 1 ½ teaspoons every 12 hours (3 bottles)
Over 4 - 6 years / Over 37.5 – 50 lbs / 50 mg
every 12 hours / 2 teaspoons every 12 hours
(4 bottles)
Over 6 - 8 years / Over 50-62.5 lbs / 62.5 mg
every 12 hours / 2 ½ teaspoons every 12 hours (5 bottles)
Over 8- 9 years / Over 62.5 – 75 lbs / 75 mg
every 12 hours / 3 teaspoons every 12 hours
(5 bottles)
Over 9-10 years / Over 75 - 87.5 lbs / 87 mg
every 12 hours / 3 ½ teaspoons every 12 hours (6 bottles)
Over 10 years / Over 87.5 lbs / 100 mg
every 12 hours / Give pills

Pediatric Dosing Guidelinesfor Doxycycline, Ciprofloxacin, and Amoxicillin

AMOXICILLIN

Amoxicillin 80 mg/kg/day divided into 3 doses (not to exceed 500 mg every 8 hours). Dosing based on availability of 400 mg/ 5 mL (100 mL) suspension, and 500 mg tablets:

Age
/ Approximate Weight (lbs) /
Amoxicillin Dose
/ 400 mg/5mL suspension
Newborn – 1 month / 0-9 lbs / 100 mg
every 8 hours / 1/4 teaspoon every 8 hours
(1 bottle)
Over 1 months – 6 months / Over 9 - 18 lbs / 200mg
every 8 hours / ½ teaspoon every 8 hours
(1 bottle)
Over 6 months – 2 years / Over 18 - 27.5 lbs / 300 mg
every 8 hours / ¾ teaspoon every 8 hours
(2 bottles)
Over 2 -4 years / Over 27.5 - 37 lbs / 400 mg
every 8 hours / 1 teaspoon every 8 hours
(2 bottles)
Over 4 – 5 years / Over 37 – 46 lbs / 500 mg
every 8 hours / 1 ¼ teaspoons every 8 hours
(2 bottles)
Over 5 – 7 years / Over 46 -55 lbs / 500 mg
every 8 hours / 1 ¼ teaspoons every 8 hours
(2 bottles)
Over 7 – 8 years / Over 55 -64 lbs / 500 mg
every 8 hours / 1 ¼ teaspoons every 8 hours
(2 bottles)
Over 8 years / Over 64 lbs / 500 mg
every 8 hours / 1 ¼ teaspoons every 8 hours
(2 bottles)

References:

  1. CDC Growth Charts: United States May 30, 2000.
  2. Ogden CL, Fryar CD, Carroll MD, Flegal KM. Mean Body Weight, Height, and Body Mass Index, United States 1960-2002. Advanced Data from Vital Health and Statistic; no 347. Hyattsville, Maryland: NationalCenter for Health Statistics. 2004.

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