About: http://webisa.webdatacommons.org/32130318

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	Dextromethorphan is a NMDA antagonist that appears to block the tolerance that otherwise develops with long-term morphine therapy.
http://www.w3.org/ns/prov#wasQuotedFrom	opiophile.org