Benadry 12.5 mg. per 5 ml (Diphenhydramine)

Dosage:  every 4 hours.  Please know that there are two strengths of Benadryl.  These are 12.5 mg. per 5 ml and 6.25 mg. per 5 ml (clear).  Our doses are based on the 12.5 mg. per 5 ml strength.

When to use:  Benadryl is an antihistamine medication which is particularly good at relieving allergic symptoms.  Use Benadryl for nasal congestion, sneezing, runny nose, itching of the nose and throat, itchy watery eyes or other respiratory allergies due to hay fever (allergic rhinitis).  It is also useful to treat itching due to any cause, especially with rashes due to allergy or viruses (example Chicken pox).  Use Benadryl to treat insect bites and stings.

Do not use in newborn babies because of sedation.  Use with caution in young infants.

Side Effects:  Benadryl may cause drowsiness or less commonly agitation or insomnia.  Other side effects are rare.  Several years ago it was thought that antihistamines such as Benadryl should not be given to children with asthma.  This has now been disproved.  Actually it may help a given child's asthma to better control nasal allergies.


Benadryl (12.5 mg per 1 tsp)

12 - 17 lbs

call us before using

18 - 23 lbs

3/4 teaspoon (3.75 ml)

24 - 35 lbs

1 teaspoon (5 ml)

36 - 47 lbs

1 1/2 teaspoon (7.5 ml)

48 - 59 lbs

2 teaspoons (10 ml)

60 - 71 lbs

2 1/2 teaspoons (12.5 ml)

72+ lbs

3 teaspoons (15 ml)

Children over the age of 12 years and adults may take Benadryl tablets or Kapseals 25 mg., 1 to 2 capsules every 4 hours.