Diphenhydramine Hydrochloride (Benadryl)

Question 1

Classification:

Answer 1

• Antihistamine

Question 2

Action:

Answer 2

• Binds and blocks H1 histamine receptors

Question 3

Indications:

Answer 3

• Anaphylactic reactions

Question 4

Adverse Effects:

Answer 4

• Drowsiness
• Dizziness
• Headache
• Excitable state (Children)
• Wheezing
• Thickening of bronchial secretions
• Chest tightness
• Palpitations
• Hypotension
• Blurred vision
• Dry mouth
• Nausea/vomiting
• Diarrhea

Question 5

Contraindications:

Answer 5

• Acute asthma which thickens secretions
• Pts w/ cardiac histories
• Known sensitivity

Question 6

Dosage (Adult):

Answer 6

• 25 to 50 mg IV, IO, IM

Question 7

Dosage (Pediatric 2-12 years):

Answer 7

• 1 to 1.25 mg/kg IV, IO, IM