Assertion: viagra's sildenafil | /r/HasAspect | terminal
Facets:
Source sentences:
text: Both sildenafil and the active metabolite have terminal half-lives of about 4 hours.
text: Both sildenafil and the active metabolite have terminal half-lives of about 4 hours.
text: Both sildenafil and the active metabolite have terminal half-lives of about 4 hours.