Skip to Content
Print Share

Benadryl Injection Dosage

Generic name: diphenhydramine hydrochloride
Dosage form: Injection, USP

The information at Drugs.com is not a substitute for medical advice. Always consult your doctor or pharmacist.

THIS PRODUCT IS FOR INTRAVENOUS OR INTRAMUSCULAR ADMINISTRATION ONLY.

Benadryl in the injectable form is indicated when the oral form is impractical.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.

DOSAGE SHOULD BE INDIVIDUALIZED ACCORDING TO THE NEEDS AND THE RESPONSE OF THE PATIENT.

Pediatric Patients, other than premature infants and neonates

5 mg/kg/24 hr or 150 mg/m2/24 hr. Maximum daily dosage is 300 mg. Divide into four doses, administered intravenously at a rate generally not exceeding 25 mg/min, or deep intramuscularly.

Adults

10 to 50 mg intravenously at a rate generally not exceeding 25 mg/min, or deep intramuscularly, 100 mg if required; maximum daily dosage is 400 mg.

Next → Interactions
Add to My Med List

More about Benadryl (diphenhydramine)

Consumer resources

Other brands: Banophen, ZzzQuil, Diphenhist, Sominex, More... (25)

Professional resources

Other Formulations

Related treatment guides

Drugs.com Mobile Apps

The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records. Available for Android and iOS devices.

Explore Apps
Hide