How Many Mg Of Benadryl Can I Take

Understanding the Correct Dosage of Benadryl for Adults and Children

Benadryl, also known as diphenhydramine, is a widely used antihistamine medication that effectively treats allergic reactions, hives, and various allergy symptoms. It is essential to understand the appropriate dosage for both adults and children to ensure safe and effective use of this medication.

Benadryl Dosage for Adults

For adults, the recommended Benadryl dosage typically ranges from 25 to 50 milligrams every four to six hours, depending on the severity of symptoms. It is crucial to adhere to the following guidelines when taking Benadryl:

  • Avoid taking Benadryl more than six times in a single day.
  • Do not exceed a total of 300 milligrams of Benadryl within a 24-hour period.

Benadryl is available in various forms, including tablets, chewable tablets, and liquid. Always refer to the product labeling to determine the exact dosage of Benadryl in your chosen form to ensure accurate intake.

Benadryl Dosage for Children

When administering Benadryl to children, it is essential to follow age-appropriate dosing guidelines:

  • Children aged 6 to 11 years can take 12.5 to 25 milligrams every four to six hours as needed.
  • Children aged 12 and older may take 25 to 50 milligrams every four to six hours as required.
  • Do not exceed six doses of Benadryl in a 24-hour period for children.

Children’s Benadryl formulations are available in chewable tablets and oral liquid, with specific concentrations per tablet or milliliter. It is crucial to verify the dosage before administering the medication to a child.

Side Effects of Benadryl

While Benadryl is effective in treating allergic reactions and symptoms, it may lead to certain side effects, including:

  • Dry mouth, nose, and throat
  • Drowsiness
  • Dizziness
  • Nausea
  • Vomiting
  • Loss of appetite

If you or your child experience severe reactions such as vision problems or difficulty urinating, seek medical attention promptly. Avoid using Benadryl in children under 6 years of age unless advised by a healthcare provider.

Precautions and Considerations

Prior to taking Benadryl, consult with your healthcare provider if you have a history of certain medical conditions or are taking specific medications. Precautions should be taken if you have:

  • Breathing problems like asthma or emphysema
  • Glaucoma
  • Heart disease
  • High blood pressure

Additionally, it is essential to discuss the use of Benadryl with your healthcare provider if you are pregnant, planning to become pregnant, breastfeeding, or over 65 years old.

What to Do in Case of Missed Dose or Overdose

If you miss a dose of Benadryl, take it as soon as you remember. However, if it is close to your next scheduled dose, skip the missed dose to avoid doubling up. In the event of an overdose, characterized by symptoms like drowsiness, dry mouth, and confusion, seek immediate medical assistance.

Beware of the ‘Benadryl Challenge’

The ‘Benadryl Challenge’ is a dangerous trend on social media that encourages excessive consumption of Benadryl to induce hallucinations. This practice can have severe consequences, including coma or death. It is crucial to educate individuals, especially children and teens, about the risks associated with such challenges.


Benadryl is a valuable antihistamine medication for treating allergies and related symptoms. Adhering to the recommended dosage guidelines for adults and children is essential to ensure safe and effective use of the medication. Always refer to the product labeling and consult with a healthcare provider if you have any concerns or questions regarding Benadryl.

Frequently Asked Questions

1. How many Benadryl tablets can I take?

The adult dose of Benadryl ranges from 25 to 50 milligrams, which may equate to one or two tablets based on the product. Always check the product labeling to confirm the correct dosage.

2. How many milligrams (mg) of Benadryl can I take?

Adults can take 25 to 50 milligrams of Benadryl every four to six hours as needed.

3. Do children require a different dose of Benadryl?

Yes, children aged 6 to 11 should take 12.5 to 25 milligrams every four to six hours, while children 12 and over may take the adult dose of 25 to 50 milligrams as needed. Benadryl should only be given to children under 6 years under healthcare provider guidance.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top