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Diphenhydramine (Benadryl) Class
Antihistamine
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Diphenhydramine (Benadryl) Actions
- 1. Blocks histamine receptors
- 2. Has some sedative effects
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Diphenhydramine (Benadryl) Indications
- 1. All levels of allergic reactions and anaphylaxis in conjunction with epinephrine
- 2. Extrapyramidal effects (dystonic reactinos) area characterized by uncontrolled muscle twitching, lateral eye deviation, and feeling of a thick tounge due to phenothiazine (thorazine, compazine, antipsychotics, narcotic potentiators and antiemetics) overdose
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Diphenhydramine (Benadryl) Contraindications
- 1. COPD including asthma
- 2. Pregant or nursing mothers
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Diphenhydramine (Benadryl) Precautions
- 1. Hypotension
- 2. Enlarged prostate
- 3. glaucoma
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Diphenhydramine (Benadryl) Side Effects
- 1. Sedation resulting in drowsiness and lethargy
- 2. Dries bronchial secretions resulting in wheezing
- 3. Blurred vision
- 4. Headache
- 5. Palpitations
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Diphenhydramine (Benadryl) Dosage
25-50 mg
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Diphenhydramine (Benadryl) Route
Slow IV Push or Deep IM
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Diphenhydramine (Benadryl) How Supplied
Ampule or prefilled syringe: 50mg / mL
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Diphenhydramine (Benadryl) Pediatric Dosage
1mg / kg up to 25mg
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