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Home - For Dermatologists - Pediatric Dosing - Anti-Histamines
ANTI-HISTAMINE
| DRUG |
DOSE PER DAY
mg/kg/day
(mg/lb/day) |
DOSE BY AGE (Years)
(in mg per dose) |
FREQ. OF ADMIN.
(Hours) |
| |
12+ |
6 - 12 |
2 - 6 |
|
Diphenhydramine
(Benadryl, Benylin) |
5 (2.3) |
25 - 50 |
25 - 50 |
12.5 - 25 |
6 - 8 |
Cetirizine
(Zyrtec) |
- |
10 |
5 - 10 |
2.5 - 5 |
24 |
Hydroxyzine*
(Atarax, Vistaril) |
2 (0.9) |
25 - 100 |
10 - 25 |
5 - 10 |
6 - 8 |
| Loratadine
(Claritin) |
- |
10 |
10 |
5 |
24 |
*Hydroxyzine suspension
| weight (lbs ) |
weight (kgs) |
2mg/kg/day = |
Dose for Hydroxyzine
(10mg/5mL) |
| 30 to 40 lbs |
14 to 18kg |
32 mg/day |
5mL Q 8hrs prn |
| 40 to 50 lbs |
18 to 23kg |
40 mg/day |
5mL Q 6hrs prn |
| 50 to 60 lbs |
23 to 27kg |
50 mg/day |
5mL Q 6hrs prn |
| 60 to 70 lbs |
27 to 32kg |
60 mg/day |
10mL Q 8hrs prn |
| 70 to 80 lbs |
32 to 36kg |
(see dose by age below) |
|
SUPPLIED:
| DRUG |
DOSAGE FORM |
STRENGTH |
Diphenhydramine
(Benadryl, Benylin) |
Elixir, Syrup |
12.5 mg/5 ml |
Hydroxyzine
(Atarax, Vistaril) |
Syrup
Suspension |
10 mg/5 ml
25 mg/5 ml |
Cetirizine
(Zyrtec) |
Syrup |
5 mg/5 ml |
| Loratadine
(Claritin) |
Syrup
Redi-Tab |
5mg/5ml
10mg |
| Disclaimer: All of the information on this website is being presented as helpful reference material but should not be considered authoritative. There are no references because the information has been collected over the years piecemeal from notes, lectures, journals, textbooks, personal communications with other physicians and experience. You may disagree with some of it. Take it simply for what it is: information that I have found useful in my day to day practice as a clinical dermatologist and my hope is that you find it useful as well. |
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