Diphenhydramine Flashcards

1
Q

Diphenhydramine Class

A

Antihistamine

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2
Q

Diphenhydramine Mechanism of Action

A

Blocks H1 receptors in the respiratory tract, blood vessels, and GI smooth muscle

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3
Q

Diphenhydramine Indications

A

Symptomatic allergic reactions, Symptomatic dystonia, Extrapyramidal signs or symptoms caused by phenothiazines

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4
Q

Diphenhydramine Contraindications

A

Newborns and premature infants, breastfeeding

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5
Q

Diphenhydramine Dosage and Administration

A

1 mg/kg
Maximum 50 mg dose IM, IV, or orally

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