This page is part of the FHIR Specification (v0.0.82: DSTU 1). The current version which supercedes this version is 5.0.0 . For a full list of available versions, see the Directory of published versions Contraindication-example This is the narrative for the resource. See also the XML or JSON format. Severity: High - Risk of internal bleeding Those who take acetaminophen along with the widely used blood-thinning drug warfarin may face the risk of serious internal bleeding. People on warfarin who take acetaminophen for at least seven days in a row should be closely watched for bleeding. 500 mg Acetaminophen tablet 1/day, PRN since 2010 Warfarin 1 MG TAB prescribed Jan. 5, 2014 Mitigation: Jan 5, 2014 by Dr. Adam Careful: Asked patient to discontinue regular use of Tylenol and to consult with clinician if they need to resume to allow appropriate INR monitoring   Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification. © HL7.org 2011+. FHIR DSTU (v0.4.0-4902) generated on Fri, Mar 27, 2015 00:19+1100. Links: What's a DSTU? | Version History | Specification Map | Compare to DSTU1 | | Propose a change