Carvedilol Flashcards

Questions and Answers

What is the classification of Carvedilol?

Selective α-1 blocker

Calcium channel blocker

Nonselective β-adrenergic blocker

Both A and B (correct)

What is the primary use of Carvedilol?

Treating high blood pressure and congestive heart failure.

The typical dose of Carvedilol is ___ mg po bid.

6.25

What is the mechanism of action (MOA) of Carvedilol?

Decreases AV nodal conduction and blocks catecholamine-induced dysrhythmias. Signup and view all the answers

Which of the following are contraindications for Carvedilol? (Select all that apply)

Bronchial asthma Signup and view all the answers

Match the common adverse reactions to their descriptions:

Cold extremities = Feeling of numbness or coolness in hands and feet Dizziness = Lightheadedness or fainting Erectile dysfunction = Difficulty in achieving or maintaining an erection Fatigue = Extreme tiredness or lack of energy Hypotension = Abnormal low blood pressure Weight gain = Increase in body weight Signup and view all the answers

Study Notes

Carvedilol Overview

Carvedilol is marketed under the brand names Coreg and Coreg CR.

Classification

Classified as a non-selective beta-adrenergic blocker and alpha-1 adrenergic blocker.

Action/Use

Primarily prescribed for high blood pressure (hypertension) and congestive heart failure.
Functions similarly to labetalol, blocking the adrenergic nervous system receptors.

Dosage

Available as a tablet (6.25 mg orally twice daily), can be increased to 25 mg twice daily.
Extended-release capsules are taken in the morning (10-20 mg daily), with a maximum dosage of 80 mg daily.

Mechanism of Action (MOA)

Acts as a selective α-1 and nonselective β-adrenergic blocker.
Reduces atrioventricular (AV) nodal conduction in supraventricular tachycardias and prevents catecholamine-induced dysrhythmias.

Contraindications

Not recommended for individuals with hypersensitivity to the drug, bronchial asthma, significant bradycardia, second or third-degree AV block, sick sinus syndrome, overt congestive heart failure (CHF), cardiogenic shock, or severe hepatic impairment.

Common Adverse Reactions

Side effects occurring in over 10% of patients include cold extremities, dizziness, erectile dysfunction, fatigue, hypotension, and weight gain.

Rare but Serious Adverse Reactions

Important adverse reactions not specified, but typically include severe allergic reactions or drastic changes in heart function.

Description

Study the key concepts related to Carvedilol, a medication used to treat high blood pressure and heart failure. These flashcards cover its classification, uses, and dosing information, making it an essential resource for nursing and medical students.