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His international normalised ratio (INR) was reported initially as unreadable by the laboratory, then eventually came back as &gt;20. After a thorough medication history, he said that he had recently been prescribed topical miconazole oromucosal gel by his dentist for oral candidiasis, which had interacted with the warfarin to cause this life-threatening haematoma.<\/jats:p>","DOI":"10.1136\/bcr-2020-239999","type":"journal-article","created":{"date-parts":[[2021,3,2]],"date-time":"2021-03-02T10:57:34Z","timestamp":1614682654000},"page":"e239999","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":3,"title":["Pharyngeal haematoma and partial airway obstruction caused by interaction between warfarin and topical miconazole gel"],"prefix":"10.1136","volume":"14","author":[{"given":"Heather","family":"Reynolds","sequence":"first","affiliation":[{"name":"Emergency Department, Mid Yorkshire Hospitals NHS Trust, Wakefield, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2021,3,2]]},"reference":[{"key":"2025082712034454000_14.3.e239999.1","unstructured":"Joint Formulary Committee . 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