Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1984-9-25
pubmed:abstractText
Plasma concentrations of propranolol (PROP) and its active 4-hydroxymetabolite were determined in neurological patients receiving chronic therapy with relatively low PROP doses (40-240 mg/day). Plasma PROP concentrations determined before the morning dose were much lower than, but significantly correlated (r = 0.91) with the drug level two hours after dosing. 4-hydroxypropranolol (4-OH-P) was often undetectable (less than 1 ng/ml) in the early morning samples. Plasma concentrations of both parent drug and metabolite determined two hours after the morning dose correlated weakly with the prescribed daily dose. The intrapatient dose-concentration relationship, on the other hand, was strong, particularly for the parent drug. The ratio between 4-OH-P and PROP in plasma was inversely related to the PROP concentration, at least over the lower PROP concentration range (0-100 ng/ml). The usefulness of determining the concentration of the metabolite in the evaluation of the pharmacological action of low doses of PROP is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0251-1649
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
19-23
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Plasma concentrations of propranolol and 4-hydroxy-propranolol at steady-state in neurological patients: intersubject and intrasubject correlations with dose.
pubmed:publicationType
Journal Article