

Some of these side effects may go away within a few days or a couple of weeks. The more common side effects of Benadryl include:
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This list doesn’t include all possible side effects.įor more information on the possible side effects of Benadryl or tips on how to deal with a troubling side effect, talk with your doctor or pharmacist.

The following list contains some of the key side effects that may occur while taking Benadryl. They may suggest other treatment options that may be more effective for you.īenadryl can cause mild or serious side effects. However, if you’re taking Benadryl frequently (on more than about 4 days per week), talk with your doctor. When used over time, Benadryl continues to work to relieve symptoms of hay fever or allergies, runny nose, hives, and other conditions. This was due to tolerance.Īlthough tolerance to sleepiness caused by Benadryl can happen, tolerance doesn’t seem to develop for other effects of Benadryl. However, after they took Benadryl for 4 days, this side effect no longer occurred. This means your body’s response to the drug may decrease over time.įor instance, one study found that Benadryl caused sleepiness on the first day people took it. Your body can develop a tolerance to some of the effects of Benadryl.
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For children ages 6 to 12 years, the maximum is 150 mg each day.Īdults or children should not apply Benadryl products, such as the cream, gel, and spray, to their skin more than four times per day. For adults and children over 12 years of age, the maximum dosage is 300 mg each day. Oral Benadryl products should not be taken more than six times each day. (See warning below in the “ Benadryl side effects” section.) Maximum dosage Your doctor can also recommend the most appropriate dosage of Benadryl to treat a baby if necessary. Your doctor may want to evaluate the baby’s symptoms. Topical Benadryl products that aren’t approved for use in children under 2 years.īefore giving Benadryl to a baby, talk with your doctor. Over-the-counter oral Benadryl products aren’t approved for use in children under 6 years. Children under 2 years: Use only under the direction of a doctor.Children ages 2 years and older: Apply Benadryl cream, gel, or spray to the affected area up to three to four times daily.For pain and itchy skin from hives, insect bites, and other causes:.For symptoms of the common cold (such as runny nose or sneezing):.Children under 6 years: Use only under the direction of a doctor.Children 6 to 11 years: 12.5 to 25 mg, every 4 to 6 hours.Children ages 12 years and older: 25 to 50 mg, every 4 to 6 hours.

Typical dosage for adults: An application of Benadryl cream, gel, or spray to the affected area up to three to four times daily.Typical dosage for adults: 25 to 50 mg, every 4 to 6 hours.ĭosage for pain and itchy skin from hives, insect bites, and other causes.Typical dosage for adults: 25 to 50 milligrams (mg), every 4 to 6 hours.ĭosage for symptoms of the common cold (such as runny nose or sneezing).If you’re unsure what dosage to take, ask your doctor or pharmacist. The following information describes the most commonly used or recommended dosages. Typically, you should use the smallest dosage that provides the desired effect. the type of condition you’re using Benadryl to treat.Your Benadryl dosage will depend on several factors.
