<?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>ATC</propName><propValue>L04AC11</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>DRUGBANK</propName><propValue>DB09036</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>MMSL_CODE</propName><propValue>GNd08253</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>MMSL_CODE</propName><propValue>IN30272</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>RxCUI</propName><propValue>1535218</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>SNOMEDCT</propName><propValue>704262001</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>SNOMEDCT</propName><propValue>704263006</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>SPL_SET_ID</propName><propValue>8d663642-f52e-49c0-a023-2da083fdfc0b</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>UNII_CODE</propName><propValue>T4H8FMA7IM</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>USP</propName><propValue>m9399</propValue></propConcept><propConcept><propCategory>CODES</propCategory><propName>VUID</propName><propValue>4033374</propValue></propConcept><propConcept><propCategory>NAMES</propCategory><propName>RXNAV_STR</propName><propValue>siltuximab</propValue></propConcept><propConcept><propCategory>NAMES</propCategory><propName>RxNorm Name</propName><propValue>siltuximab</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Anatomical Therapeutic Chemical</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Drug Bank</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Gold Standard Alchemy</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Metathesaurus FDA Structured Product Labels</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Multum MediSource Lexicon</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>National Drug Data File Plus Source Vocabulary</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>United States Pharmacopeia</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>US Edition of SNOMED_CT</propValue></propConcept><propConcept><propCategory>SOURCES</propCategory><propName>Source</propName><propValue>Veterans Health Administration National Drug File</propValue></propConcept></propConceptGroup></rxnormdata>