Metoprolol (Lopressor) Flashcards

Study Notes

Metoprolol (Lopressor) Overview

Metoprolol is classified as an antianginal and antihypertensive medication.
It belongs to the pharmacologic class of beta blockers.

Indications

Used for hypertension (HTN) and stable heart failure (HF).
Treats angina pectoris.
Prevents and reduces mortality in myocardial infarction (MI) patients.

Mechanism of Action

Metoprolol blocks beta1-adrenergic receptors in the myocardium, leading to various cardiovascular effects.

Therapeutic Effects

Lowers blood pressure and heart rate.
Reduces frequency and severity of angina episodes.
Decreases cardiovascular mortality rates.

Side Effects

Major side effects include bradycardia, heart failure, pulmonary edema, and hypotension.
Common side effects involve fatigue and weakness.
Visual disturbances such as blurred vision and nasal congestion may occur.
Musculoskeletal pain can manifest as back pain.
Genitourinary effects include erectile dysfunction and decreased libido.
Gastrointestinal issues may present as constipation, diarrhea, or drug-induced hepatitis.

Adult Dose Parameters

For myocardial infarction via IV: administer three doses of 5 mg every 2 minutes.
Antianginal and antihypertensive oral dosage ranges from 25 to 400 mg per day.
IV push should be given undiluted over a period of one minute.

Nursing Interventions

Assess and record the apical pulse before administering metoprolol; this is crucial for ensuring patient safety and medication efficacy.

Description

Explore the essential flashcards on metoprolol, also known as Lopressor. This quiz covers its therapeutic and pharmacologic classes, indications, mechanism of action, and therapeutic effects. Perfect for students and healthcare professionals studying cardiovascular medications.