Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1986-12-17
pubmed:abstractText
Physostigmine was incorporated in an injectable emulsion in an attempt to prolong its pharmacological activity. Emulsions which remained stable over 6 month storage were prepared using optimal experimental conditions. The in-vitro kinetic examination revealed that the rate-determining step in the release process of physostigmine from the emulsion was its partitioning from the oily phase to the external aqueous phase. The in-vivo results indicated that the physostigmine emulsion was able to inhibit the cholinesterase activity for only 1 to 2 h. The preliminary pharmacokinetic analysis showed that the physostigmine emulsion apparently increased the bioavailability compared with the conventional injectable solution. This could be attributed either to the protection of the sensitive drug from the enzymatic degradation or to improved absorption. The presence of poloxamer micelles in the aqueous phase was shown to enhance the bioavailability of physostigmine without having any effect on its pharmacological activity or duration.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0022-3573
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
653-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Pharmacological evaluation of an injectable prolonged release emulsion of physostigmine in rabbits.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't