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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1992-6-15
pubmed:abstractText
Lacidipine is a new 1,4-dihydropyridine (DHP) that induces a potent calcium antagonistic activity on vascular preparations. It has a markedly slow rate of onset, but its effect is still apparent after 9 h of drug washout. Calcium antagonistic activity has been evaluated on nonvascular smooth muscle, and lacidipine has proved to be more vascular-selective than standard DHP derivatives. In cardiac preparations, the concentrations required to induce negative inotropic effects are approximately 100 times higher than concentrations needed to antagonize calcium-induced contractions in vascular smooth muscle. In addition, lacidipine exhibits antioxidant properties in tests based on the autoperoxidation of rat cerebral cortical membranes. In spontaneously hypertensive rats (SHRs), lacidipine induces a potent and long-acting blood pressure reduction (ED25 = 0.19 mg/kg orally and 0.006 mg/kg intravenously, with durations greater than 12 and 3 h, respectively). In saline-loaded SHRs and at antihypertensive dosages, lacidipine increases urine volume as well as urinary excretion of sodium. In one-clip, two-kidney renal hypertensive dogs, the antihypertensive properties of lacidipine after both oral and intravenous administration were confirmed. The marked vascular selectivity of lacidipine was clearly evident both in pithed rats infused with angiotensin II and in anesthetized dogs, in which preferential and long-lasting coronary and vertebral blood flow increases were also observed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0160-2446
pubmed:author
pubmed:issnType
Print
pubmed:volume
17 Suppl 4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S1-8
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Pharmacology of lacidipine, a vascular-selective calcium antagonist.
pubmed:affiliation
Glaxo Research Laboratories, Glaxo SpA, Verona, Italy.
pubmed:publicationType
Journal Article, Review