Diphenhydramine Flashcards
1
Q
Diphenhydramine dose
A
Adult
25 – 50mg IV/IM/PO
Pedi (6 – 12 years old)
12.5 – 25mg IV/IM/PO
Pedi (under 6 years old)
2 – 5 mg/kg IV/IM not to exceed 25mg
2
Q
Diphenhydramine class
A
Antihistamine
3
Q
Diphenhydramine contraindication
A
Asthma and other lower respiratory diseases
4
Q
Diphenhydramine indication
A
Anaphylaxis, allergic reactions, and dystonic reactions
5
Q
Diphenhydramine side effect
A
Drowsiness
Tachycardia
Dizziness
Hypertension/Hypotension
6
Q
Diphenhydramine action
A
Diphenhydramine blocks histamine release, thereby reducing bronchoconstriction, vasodilation and edema. It suppresses central cholinergic activity and prolongs the action of dopamine by inhibiting its reuptake and storage.
