Adults and children 12 years and older can take one or two Benadryl Allergy 25 milligram tablets every four to six hours, states the manufacturer, McNeil-PPC. Children between the ages of 6 and 12 should only take one tablet. Children under the age of 6 should not use this medication.
Individuals should not exceed six doses in a 24-hour period, according to McNeil-PPC. This medication relieves allergy symptoms, temporarily relieving runny nose, sneezing, itchy eyes, and itching of the nose or throat. It also relieves the sneezing and runny nose associated with the common cold. It can cause drowsiness, and individuals should avoid taking alcohol or sedatives and should not operate machinery while taking it.