Linked Life Data

1526077

Source:http://linkedlifedata.com/resource/pubmed/id/1526077

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1992-10-22
pubmed:abstractText
For most drugs delivered by the transdermal route, percutaneous absorption is limited by the rate of release of the drug from the device or by diffusion across the stratum corneum. However, systemic absorption also requires that the drug be taken up by dermal blood vessels. As part of a bioavailability study of a transdermal delivery system, we observed that a concomitant intravenous infusion of nicotine had a marked effect on the absorption kinetics of transdermal nicotine. Plasma concentrations of nicotine rose less rapidly, reached a lower peak, and peaked at a later time, indicating delayed absorption of transdermal nicotine after intravenous nicotine versus after transdermal nicotine administered alone. Nicotine is known to produce cutaneous vasoconstriction. The likely explanation for our observation is that intravenous nicotine constricts dermal blood vessels, thereby limiting percutaneous absorption. Other vasoconstrictor drugs would be expected to retard the absorption of transdermal nicotine and perhaps other transdermal drugs as well.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0009-9236
pubmed:author
pubmed:issnType
Print
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
223-30
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Intravenous nicotine retards transdermal absorption of nicotine: evidence of blood flow--limited percutaneous absorption.
pubmed:affiliation
Clinical Pharmacology Unit of the Medical Service, San Francisco General Hospital Medical Center, University of California.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't