Lopressor Flashcards

Study Notes

Lopressor Overview

Lopressor is a medication with the generic name metoprolol.
It falls under the classes of antianginals and antihypertensives.

Mechanism of Action

Primarily blocks stimulation of beta1-adrenergic receptors located in the myocardium.
Generally does not influence beta2-adrenergic receptor sites, which are relevant to pulmonary and vascular functions.
Therapeutic effects include:
- Reduced blood pressure (BP) and heart rate.
- Fewer occurrences of angina pectoris.
- Lower cardiovascular mortality and hospitalization rates in heart failure patients.

Side Effects

Common side effects consist of:
- Fatigue, weakness, anxiety, and depression.
- Dizziness, drowsiness, and insomnia.
- Memory loss and mental status changes.
- Peripheral effects like blurred vision, stuffy nose, bronchospasm, and wheezing.
Gastrointestinal disturbances including constipation, diarrhea, and dry mouth.
Hormonal effects such as erectile dysfunction and decreased libido.
Other notable side effects include hypersensitivity reactions, hyperglycemia, hypoglycemia, and drug-induced lupus syndrome.

Contraindications

Should not be used in cases of:
- Uncompensated heart failure.
- Pulmonary edema or cardiogenic shock.
- Bradycardia, heart block, or sick sinus syndrome.

Adverse Effects

Significant adverse effects can include:
- Bradycardia and worsening heart failure.
- Risk of pulmonary edema, which requires careful monitoring.

Nursing Implications

Health professionals should take the patient's apical pulse before administering the medication.
Administration should be withheld if the heart rate is below a specified threshold.

Description

Test your knowledge of Lopressor, including its generic name, classifications, and actions. This quiz focuses on important pharmacological terms and their definitions. Enhance your understanding of this common medication and its uses.