About: http://webisa.webdatacommons.org/19168342

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	However opioids are limited by side effects such as constipation and sedation, as well as by dependence, tolerance and scheduling issue.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov