<?xml version="1.0" ?><rxnormdata><propConceptGroup><propConcept><propCategory>ATTRIBUTES</propCategory><propName>GENERAL_CARDINALITY</propName><propValue>SINGLE</propValue></propConcept><propConcept><propCategory>ATTRIBUTES</propCategory><propName>PRESCRIBABLE</propName><propValue>Y</propValue></propConcept><propConcept><propCategory>ATTRIBUTES</propCategory><propName>RXNAV_HUMAN_DRUG</propName><propValue>US</propValue></propConcept><propConcept><propCategory>ATTRIBUTES</propCategory><propName>TTY</propName><propValue>IN</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>DRUGBANK</propName><propValue>DB00165</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>MMSL_CODE</propName><propValue>BN4994</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>MMSL_CODE</propName><propValue>IN5686</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>RxCUI</propName><propValue>42954</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>VUID</propName><propValue>4017779</propValue></propConcept><propConcept><propCategory>NAMES</propCategory><propName>RXNAV_STR</propName><propValue>vitamin B6</propValue></propConcept><propConcept><propCategory>NAMES</propCategory><propName>RxNorm Name</propName><propValue>vitamin B6</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Drug Bank</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Multum MediSource Lexicon</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Veterans Health Administration National Drug File</propValue></propConcept></propConceptGroup></rxnormdata>