Schedule of controlled substances: placement of tramadol into schedule IV. Final rule.  [electronic resource] 

 -  Federal register  Jul 2014 
 - 37623-30 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0097-6326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analgesics, Opioid--classification<br/>Drug and Narcotic Control--legislation & jurisprudence<br/>Humans<br/>Legislation, Drug<br/>Tramadol--classification<br/>United States