Questions and Answers
What is the generic name for Phenergan?
What are the trade names for Promethazine?
Which classifications apply to Phenergan?
What is the action of Phenergan?
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The drug should be given in concentrations no greater than _____ mg/mL.
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What are the indications for using Phenergan?
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Which of the following are adverse reactions of Phenergan?
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What are the contraindications for using Phenergan?
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Which substances may interact with Phenergan?
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What nursing implications should be considered when administering Phenergan?
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Study Notes
Phenergan Overview
- Generic name: Promethazine
- Trade names include Histanil and Promethacon
Classification
- Functions as an anti-emetic and antihistamine
Mechanism of Action
- Blocks histamine effects
- Inhibits the vomiting reflex located in the medulla
Administration Guidelines
- Maximum concentration: 25 mg/mL
- Administer no faster than 25 mg/minute
- Can be diluted in 10 to 20 mL of normal saline for IV infusion
- Preferred administration site: large-bore veins, ideally via central venous access
- IV administration time frame: 10 to 15 minutes
- Injection should occur through a port that is farthest from the patient's vein to reduce complications
Indications for Use
- Effective for treating allergic reactions
- Used to alleviate motion sickness
Potential Adverse Reactions
- Neuroleptic malignant syndrome, confusion, and disorientation
- Sedation可能性
- Highly caustic; can damage blood vessel intima and surrounding tissues
- Immediate cessation of injection is required if burning sensation occurs, to assess for possible complications
Contraindications
- Not suitable for patients in a coma
- Avoid in individuals with angle-closure glaucoma
- Contraindicated with alcohol and bisulfites
Drug Interactions
- Caution with central nervous system (CNS) depressants like alcohol and opioids
- Interaction with antihistamines
Nursing Considerations
- Regularly assess IV site integrity
- Monitor vital signs: blood pressure, pulse, and respiratory rate
- Evaluate level of consciousness (LOC)
- Observe for signs of vomiting (emesis)
- Monitor complete blood count (CBC) for any changes
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Description
Test your knowledge of Phenergan with these flashcards. This quiz covers its generic name, trade names, classification, action, and recommended dosage. Perfect for pharmacy students and healthcare professionals.
