Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1990-10-9
pubmed:abstractText
The absolute and relative bioavailability of metoclopramide following the administration of a single suppository--test (Gastrosil) and reference preparations--containing 20 mg of the pure drug or after i.v. injection of 17.8 mg was compared in 12 sex matched healthy volunteers according to an open, three-way cross-over, intra-individual design. The metoclopramide plasma levels were determined up to 32 h following rectal administration and 24 h following intravenous application using a modified and specific HPLC-assay. The areas under the concentration-time curves were either calculated to the last time-interval measured (AUC-1) by using the trapezoidal rule or by extrapolating to infinity (AUC(0-infinity] in a model-dependent manner. Pair-differences and ratios were taken for the individual AUC-values and for the maximum plasma levels (cmax-values) at the corresponding time values (tmax-values) for test and reference formulations and tested for statistical significance. The results showed the mean AUC-1 and AUC (0-infinity)-values respectively to be 10.7% and 9.5% lower for the test suppository. The mean tmax-values were found to be 21% and 11.6% lower and the mean cmax-values were found to be about 4.3% larger than the corresponding parameters for the reference formulation. The 95% Wilcoxon confidence limits for both test and reference preparation were found to range from 80.2-108.9% for all AUC-values and to lie in the region 83.5-120.3% and 57.8-100% for the cmax- and tmax-values, respectively. Thus, with respect to the pharmacokinetic target parameters, little difference can be found between the two suppository forms each containing 20 mg metoclopramide-base and under trial in this study.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0004-4172
pubmed:author
pubmed:issnType
Print
pubmed:volume
40
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
679-83
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Bioavailability and pharmacokinetics of rectally administered metoclopramide.
pubmed:affiliation
Heumann Pharma GmbH u. Co.a, Nuremberg, Fed. Rep. of Germany.
pubmed:publicationType
Journal Article, Comparative Study