Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2003-10-16
pubmed:abstractText
Sildenafil, the active ingredient in Viagra, has been purified from commercially available tablets. The purification, using Sephadex G25 chromatography under conditions of low ionic strength, is simple and inexpensive. Sildenafil purified according to this protocol has been characterized with respect to its IC50 for PDE5, its ultraviolet absorption profile, and by collision-induced dissociation fingerprinting, positive ion nanospray, and MALDI mass spectrometry. Tritated sildenafil (6 Ci/mmol) was prepared commercially using the sildenafil purified by this protocol and was verified to retain the potency of unlabeled sildenafil. This protocol and similar procedures will allow investigators to easily isolate sufficient amounts of sildenafil or other PDE5 inhibitors for conducting biochemical and in vitro studies of drug action.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0955-9930
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
369-72
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Single step isolation of sildenafil from commercially available Viagra tablets.
pubmed:affiliation
Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0615, USA. sharron.francis@vanderbilt.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.