Lake Grove Pediatrics
2233 Nesconset Highway Suite 207, Lake Grove, NY
(631) 585-4440
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  • Diphenhydramine (Benadryl) Dosage

Diphenhydramine (Benadryl) Dosage

Doses can be given every 6 hours or a maximum of 4 doses in 24 hours
Do not give under 4 months of age

children liquid (12.5 mg/5ml) Chew tab/fast melts (12.5 mg/tab) tablets  (25 mg)

Weight

Age

Dose

Teaspoon

Tablet

Tablet

12-17 lbs

6-11 mos

6.25 mg

½ tsp (2.5ml)

   

18-23 lbs

12-23 mos

12.5 mg

1 tsp (5ml)

1 tablet

 

24-35 lbs

2-3 yrs

18.75 mg

1 ½ tsp (7.5ml)

1 ½ tablets

 

36-47 lbs

4-5 yrs

25 mg

2 tsp (10ml)

2 tablets

1 tab

48-59 lbs

6-8 yrs

31.25mg

2 ½ tsp (12.5ml)

2 ½ tablets

60-71 lbs

9-10 yrs

37.5 mg

3 tsp (15ml)

3 tablets

72-85 lbs

11 yrs

43.75 mg

3.5 tsp (17.5ml)

3 ½ tablets

 

Over 85 lbs

50 mg

4 tsp (20ml)

4 tablets

2 tablets /capsules

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