Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1980-10-24
pubmed:abstractText
1. The haemodynamic mechanism of action of guanfacine 4 mg intravenously was investigated in resting conditions and during exercise for up to 20 h after administration of the drug. Cardiac output and pulmonary arterial pressure were determined by the Swan-Ganz thermodilution method. Blood pressure was measured directly. 2. During and immediately after intravenous administration of guanfacine, blood pressure peripheral resistance and pulmonary arterial pressure increased (in keeping with an alpha-sympathomimetic effect of the compound), whereas heart rate and cardiac output decreased. 3. Subsequently blood pressure fell as a result of a decrease in cardiac output. From the third hour peripheral resistance decreased, whereas cardiac output increased again, sometimes exceeding the control value. 4. During exercise blood pressure was reduced from the third hour after administration, as in resting conditions, as a result of the reduction in peripheral resistance. 5. In resting conditions guanfacine reduced heart rate at the beginning and during the whole course after administration of the drug. 6. Side-effects noted included fatigue, drowsiness and bradycardia.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0306-5251
pubmed:author
pubmed:issnType
Print
pubmed:volume
10 Suppl 1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
125S-131S
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Haemodynamic effects of guanfacine.
pubmed:publicationType
Journal Article, Clinical Trial