sub:assertion {
  d:DB00820 v:identifier "DB00820" ;
    v:namespace "drugbank" ;
    v:uri "http://bio2rdf.org/drugbank:DB00820" ;
    v:x-identifiers.org <http://identifiers.org/drugbank/DB00820> ;
    dv:drugbank-id "APRD00071" , "DB00820" ;
    dv:x-ahfs <http://bio2rdf.org/ahfs:24:12.12> ;
    dv:x-atc <http://bio2rdf.org/atc:G04BE08> ;
    dv:x-bindingdb <http://bio2rdf.org/bindingdb:14777> ;
    dv:x-cas <http://bio2rdf.org/cas:171596-29-5> ;
    dv:x-chemspider <http://bio2rdf.org/chemspider:99301> ;
    dv:x-dpd <http://bio2rdf.org/dpd:2248088> ;
    dv:x-kegg <http://bio2rdf.org/kegg:D02008> ;
    dv:x-ndc <http://bio2rdf.org/ndc:0002-4465-34> ;
    dv:x-pdb <http://bio2rdf.org/pdb:CIA> ;
    dv:x-pharmgkb <http://bio2rdf.org/pharmgkb:PA10333> ;
    dv:x-pubchemcompound <http://bio2rdf.org/pubchem.compound:110635> ;
    dv:x-pubchemsubstance <http://bio2rdf.org/pubchem.substance:46507646> ;
    dv:x-wikipedia <http://bio2rdf.org/wikipedia:Tadalafil> ;
    dct:description "Tadalafil is an orally adminstered drug used to treat male erectile dysfunction (impotence). It is marketed worldwide under the brand name Cialis. It is a phosphodiesterase 5 (PDE5) inhibitor. Tadalafil's distinguishing pharmacologic feature is its longer half-life (17.5 hours) compared with Viagra and Levitra (4-5 hours). This longer half-life results in a longer duration of action and is, in part, responsible for the Cialis nickname of the \"weekend pill.\" This longer half-life also is the basis of current investigation for tadalafil's use in pulmonary arterial hypertension as a once-daily therapy. [Wikipedia]"@en ;
    dct:identifier "drugbank:DB00820" ;
    dct:title "Tadalafil"@en ;
    a dv:Drug ;
    rdfs:label "Tadalafil [drugbank:DB00820]"@en ;
    rdfs:seeAlso <http://www.drugbank.ca/drugs/DB00820> , <http://www.drugs.com/tadalafil.html> , <http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/cia1687.shtml> , <http://www.rxlist.com/cgi/generic3/cialis.htm> .
}