On or after August 2, 2021, query parameters will no longer be echoed in the APIs' responses. (The echo was a remnant of the former SOAP version of the APIs.) The following API functions are affected:

• RxNorm & Prescribable
  • findRxcuiById: idGroup members idType, id, and allSources will be omitted
  • findRxcuiByString: idGroup members name, sourceList, and allSources will be omitted
  • getAllRelatedInfo: allRelatedGroup/rxcui (the response's outermost rxcui) will be empty
  • getApproximateMatch: approximateGroup members inputTerm, maxEntries, and options will be empty
  • getDrugs: drugGroup/name will be empty
  • getMultiIngredBrand: brandGroup/ingredientList/rxnormId will be empty
  • getNDCs: ndcGroup/rxcui will be empty
  • getProprietaryInformation: proprietaryGroup members rxcui and sourceList will be empty
  • getRelatedByRelationship: relatedGroup members rxcui and rela will be empty
  • getRelatedByType: relatedGroup members rxcui and termType will be empty
  • getRxNormName: idGroup/rxnormId will be empty
  • getSpellingSuggestions: suggestionGroup/name will be empty
• RxClass
  • all functions: The userInput element will be omitted
• RxTerms
  • getRxTermDisplayName: displayGroup/rxcui will be empty
• Interaction
  • all functions: The userInput element will be omitted