Diphenhydramine

Question 1

What class of medication is Diphenhydramine?

Answer 1

Antihistamine

Question 2

What is the MOA of Diphenhydramine?

Answer 2

Block H1 histamine receptors in respiratory tract, blood vessels, and GI smooth muscle

Question 3

What are the indications for giving Diphenhydramine?

Answer 3

Symptoms of an allergic reaction or anaphylaxis

Question 4

What are the contraindications of giving Diphenhydramine?

Answer 4

Hypersensitivity
Use with caution in patients with Asthma or are taking MAOI meds

Question 5

What are the side effects of Diphenhydramine?

Answer 5

Drowsiness, sedation, seizures, hypotension, paradoxical CNS excitation in children

Question 6

What is the trade name of Diphenhydramine?

Answer 6

Benadryl

Question 7

What is the dose if Diphenhydramine?

Answer 7

25-50mg

Question 8

What is the onset time for Diphenhydramine?

Answer 8

15 minutes

Question 9

What is the duration time for Diphenhydramine?

Answer 9

Peak: 1 hour
Total: 3-12 hours

Question 10

By which route is Diphenhydramine given?

Answer 10

IV, IM, PO