Hypotensive and Vascular Effects of Labetalol in the Normotensive Rat and Dog
-
- HASHIMOTO Keitaro
- Department of Pharmacology, Niigata University School of Medicine
-
- HASHIMOTO Toyozo
- Department of Pharmacology, Niigata University School of Medicine
-
- IIZUKA Hiromi
- Department of Pharmacology, Niigata University School of Medicine
-
- TSUKADA Tokumasa
- Department of Pharmacology, Niigata University School of Medicine
-
- MATSUDA Hiroto
- Department of Pharmacology, Niigata University School of Medicine
-
- IMAI Shoichi
- Department of Pharmacology, Niigata University School of Medicine
Bibliographic Information
- Other Title
-
- Hypotensive and Vascular Effects of Lab
Search this article
Abstract
A new antihypertensive agent, labetalol, has potent hypotensive effects in the anesthetized rat and dog when given intravenously and also in the unanesthetized beagle when given orally. Labetalol slightly increased renal blood flow of the anesthetized dog while decreasing blood pressure. Labetalol slightly increased blood flow of canine femoral artery under constant pressure perfusion. However as compared with hydralazine, labetalol seems to have no marked vasodilatatory effect which accounts for its hypotensive effect.<br>Pharmacologically, labetalol possessed both α- and β-blocking activities, though weaker than phentolamine and propranolol respectively. Another specific action of labetalol was that it has stronger β-blocking action on β1 receptor (heart rate response) than on β2 receptor (blood pressure response). Like several other β-blockers, Labetalol seems to block neuronal uptake of noradrenaline.
Journal
-
- Japanese Heart Journal
-
Japanese Heart Journal 19 (5), 762-774, 1978
International Heart Journal Association
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282680017137024
-
- NII Article ID
- 130000762450
-
- NII Book ID
- AA00690786
-
- COI
- 1:CAS:528:DyaE1MXltVaisLw%3D
-
- ISSN
- 1348673X
- 00214868
-
- NDL BIB ID
- 2073439
-
- PubMed
- 32409
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
-
- Abstract License Flag
- Disallowed