Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1980-1-28
pubmed:abstractText
The systemic availability of melphalan after oral administration is not well known. Most patients are put on a fixed oral dosage regimen. We have studied the disposition of melphalan in 14 patients after single oral doses. Five were also studied after receiving the same dose intravenously. Oral melphalan had a mean plasma terminal phase half-life (t1/2) of 90 +/- 17 min. The mean area under the plasma concentration:time curve (CXT) was 53 +/- 33 micrograms . min/ml. Urinary excretion of oral melphalan averaged 10.9 +/- 4.9% during the first 24 hr. The CXT ratio (oral:intravenous) for the 5 patients studied after both oral and intravenous melphalal (0.6 mg/kg) ranged between 0.25 and 0.89 and averaged 0.56. After oral dosing in 14 fasting patients, the time at which melphalan first appeared in the plasma varied between 15 min and 6 hr. In a myeloma patient who took oral melphalan, no melphalan was found in plasma or urine up to 24 hr. Some instances of failure of tumor response to oral melphalan may be due to inadequate bioavailability rather than inherent tumor resistance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0009-9236
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
737-45
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Oral melphalan kinetics.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.