Penbutolol: Difference between revisions
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==Category== | ==Category== | ||
Cardiovascular Drugs:Beta blockers | |||
==FDA Package Insert== | ==FDA Package Insert== | ||
Revision as of 02:24, 5 February 2014
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sheng Shi, M.D. [2]
For patient information about Penbutolol, click here
Synonyms / Brand Names: LEVATOL®
Overview
Category
Cardiovascular Drugs:Beta blockers
FDA Package Insert
| Indications and Usage | Dosage and Administration | Dosage Forms and Strengths | Contraindications | Warnings and Precautions | Adverse Reactions | Drug Interactions | Use in Specific Populations | Overdosage | Description | Clinical Pharmacology | Nonclinical Toxicology | Clinical Studies | How Supplied/Storage and Handling | Patient Counseling Information | Labels and Packages
Mechanism of Action
Penbutolol decreases plasma renin activity in normal subjects and in patients with essential and renovascular hypertension. The mechanisms of the antihypertensive actions of ß-receptor antagonists have not been established. However, factors that may be involved are: (1) competitive antagonism of catecholamines at peripheral adrenergic receptor sites (especially cardiac) that leads to decreased cardiac output; (2) a central nervous system (CNS) action that results in a decrease in tonic sympathetic neural outflow to the periphery; and (3) a reduction of renin secretion through blockade of ß-receptors involved in release of renin from the kidneys.