description: The repeated period in a cyclical schedule (of one or more dosing instructions). A cyclical schedule is noted in days, the corresponding dosing duration is also in days.\r\n\r\nThe dosage instructions are interpreted differently if RepeatPeriodCyclicalSchedule is present. Therefore this extension is labeled as a modifier extension. package_name: nictiz.fhir.nl.r4.medicationprocess9 derivation: constraint name: ExtInstructionsForUseRepeatPeriodCyclicalSchedule type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/ext-InstructionsForUse.RepeatPeriodCyclicalSchedule'} index: 0 value: short: RepeatPeriodCyclicalSchedule choices: [valueDuration] index: 2 valueDuration: {type: Duration, short: RepeatPeriodCyclicalSchedule, choiceOf: value, index: 3} package_version: 2.0.0-beta.5 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/ext-InstructionsForUse.RepeatPeriodCyclicalSchedule base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.0-beta.5