For people ages 12 years and older, a Benadryl dosage that ranges from 25 to 50 mg is usually considered effective enough to treat allergies or common cold with a usage frequency between every 4 to 6 hours. When used for topical application, the amount may vary depending on the manufacturer of the product. As a rule of thumb, only a sufficiently small amount is required to apply onto the skin and patients are advised to restrict its usage for no more than 4 times daily.
The actual dose of Benadryl? (its chemical name is diphenhydramine hydrochloride) will be different across individuals, and some of the factors to be considered are:
We would strongly advice against altering your dosage unless such alteration is ordered by your healthcare provider.
If you are dependent on oral Benadryl to help to provide relief to your allergy or common cold symptoms, please note that recommended Benadryl dosage for adults and children 12 years and above is 25 to 50 mg every 4 to 6 hours. In case your child is between the ages of 6 and 12, the range is 12.5 to 25 mg, every four to six hours.
Topical Benadryl can come in the form of gel, spray, cream, or stick. A small amount should be sufficient for the skin application and the usage should be limited to less than 4 times daily. Such Benadryl alternatives should never be applied on children age two and below. It is also advisable that topical Benadryl should never be used together with any other product that contains diphenhydramin (and this restriction applies to oral Benadryl products as well). Please note such products are never designed to be used on a large area of your body.
Your GP or healthcare provider will be in better position to advise you on other use of Benadryl. This is NOT something you could decide for yourself!
Factors you should consider before taking Benadryl may include one or more of the following:
If you find the instruction on dosage unhelpful, consult with your GP, doctor, nurse, or any qualified pharmacist.