Diphenhydramine

Generic Name
Diphenhydramine
Brand Names
Acetadryl, Advil PM, Aleve PM, Allegra Cooling Relief Anti-itch, Banophen, Benadryl, Benadryl Itch Stopping, Benadryl-D Allergy and Sinus, Calagel, Damylin With Codeine, Dimetapp Nighttime Cold & Congestion, Diphen, Diphenhist, Diphenist, Excedrin PM Triple Action, Goody's PM, Legatrin PM, Motrin PM, Nytol, Nytol Quickgels, Percogesic Reformulated Jan 2011, Siladryl, Simply Sleep, Sleepinal, Sominex, Triaminic Night Time Cold & Cough, Tylenol PM, Unisom, Unisom Sleep, Vanamine, Wal-dryl, Wal-som (doxylamine), Zzzquil
Drug Type
Small Molecule
Chemical Formula
C17H21NO
CAS Number
58-73-1
Unique Ingredient Identifier
8GTS82S83M
Background

Diphenhydramine - perhaps known most commonly as its brand name formulation Benadryl - is a first-generation H1 receptor antihistamine that is used extensively for the treatment of seasonal allergies, insect bites and stings, and rashes . However, it also has antiemetic, antitussive, hypnotic, and antiparkinson properties . As histamine receptors exist both ...

Indication

Diphenhydramine is a first-generation histamine H1 receptor antagonist (H1 antihistamine) that is widely available as a non-prescription, over-the-counter (OTC) medication. As an OTC medication, diphenhydramine is typically formulated as tablets and creams indicated for use in treating sneezing, runny nose, itchy/watery eyes, itching of nose or throat, insom...

Associated Conditions
Allergic Reaction, Allergic Rhinitis (AR), Allergic cough, Allergy to Tree Pollen, Anaphylaxis, Angioedema, Common Cold, Conjunctival irritation, Cough, Cough Variant Asthma, Cough caused by Common Cold, Eye allergy, Fever, Insect Bites, Insect Stings, Insomnia, Irritative cough, Itching of the nose, Itching of the throat, Motion Sickness, Nasal Congestion, Oral Mucositis, Pain, Parkinsonian Syndromes, Productive cough, Pruritus, Rash, Rhinorrhoea, Sinus Congestion, Sinus headache, Skin Irritation, Sneezing, Sunburn, Symptoms of Acute Bronchitis Accompanied by Coughing, Upper respiratory tract hypersensitivity reaction, site unspecified, Urticaria, Cold or flu syndrome, Dermatographism, Dry cough, Watery itchy eyes
Associated Therapies
Airway secretion clearance therapy, Expectorant

Abatacept for GVHD Prophylaxis After Hematopoietic Stem Cell Transplantation for Pediatric Sickle Cell Disease

First Posted Date
2016-08-16
Last Posted Date
2024-06-13
Lead Sponsor
Monica Bhatia
Target Recruit Count
24
Registration Number
NCT02867800
Locations
🇺🇸

North Carolina Cancer Hospital, Chapel Hill, North Carolina, United States

🇺🇸

Columbia University Irving Medical Center, New York, New York, United States

🇺🇸

Children's National Medical Center, Washington, District of Columbia, United States

and more 4 locations

Treg Therapy in Subclinical Inflammation in Kidney Transplantation

First Posted Date
2016-03-17
Last Posted Date
2024-10-07
Lead Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Target Recruit Count
32
Registration Number
NCT02711826
Locations
🇺🇸

University of California at San Francisco, San Francisco, California, United States

🇺🇸

University of Alabama, Birmingham, Birmingham, Alabama, United States

🇺🇸

University of Colorado Health Transplant Center - Anschutz, Aurora, Colorado, United States

and more 3 locations

The CHECK Trial: A Comparison of Headache Treatment in the ED: Compazine Versus Ketamine

First Posted Date
2016-01-15
Last Posted Date
2017-12-11
Lead Sponsor
University Medical Center of Southern Nevada
Target Recruit Count
54
Registration Number
NCT02657031
Locations
🇺🇸

University Medical Center of Southern Nevada, Las Vegas, Nevada, United States

An Open-label, Phase 1 Study to Determine the Maximum Tolerated Dose of HLX07,in Patients With Advanced Solid Cancers

First Posted Date
2016-01-07
Last Posted Date
2019-07-30
Lead Sponsor
Henlix, Inc
Target Recruit Count
19
Registration Number
NCT02648490
Locations
🇺🇸

Henlix, Inc., Fremont, California, United States

🇨🇳

Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan

A Study of ARC-520 at Varying Infusion Rates in Healthy Adult Volunteers

Phase 1
Completed
Conditions
Interventions
First Posted Date
2015-08-28
Last Posted Date
2018-02-26
Lead Sponsor
Arrowhead Pharmaceuticals
Target Recruit Count
40
Registration Number
NCT02535416
Locations
🇦🇺

QPharm, Pty Limited, Royal Brisbane Hospital, Herston, Queensland, Australia

Effects of Inhibiting Early Inflammation in Kidney Transplant Patients

First Posted Date
2015-07-13
Last Posted Date
2022-08-16
Lead Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Target Recruit Count
290
Registration Number
NCT02495077
Locations
🇺🇸

University of Alabama at Birmingham, Birmingham, Alabama, United States

🇺🇸

University of Maryland, Baltimore, Maryland, United States

🇺🇸

University of California, Los Angeles, Los Angeles, California, United States

and more 12 locations

A Safety, Efficacy and Biomarker Study of JNJ-42847922 in Participants With Major Depressive Disorder

First Posted Date
2015-06-19
Last Posted Date
2023-01-05
Lead Sponsor
Janssen-Cilag International NV
Target Recruit Count
48
Registration Number
NCT02476058

Donor Alloantigen Reactive Tregs (darTregs) for Calcineurin Inhibitor (CNI) Reduction

First Posted Date
2015-06-17
Last Posted Date
2021-02-09
Lead Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Target Recruit Count
15
Registration Number
NCT02474199
Locations
🇺🇸

Mayo Clinic in Rochester, Rochester, Minnesota, United States

🇺🇸

University of California at San Francisco, San Francisco, California, United States

🇺🇸

Northwestern University Comprehensive Transplant Ctr, Chicago, Illinois, United States

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