22nd March 2024

A 70 year old is admitted with reduced consciousness. She has a background of rheumatoid arthritis

A 70 year old is admitted with reduced consciousness. She has a background of rheumatoid arthritis, diabetes, congestive cardiac failure, epilepsy, AF and has recently been treated for a urinary tract infection with ciprofloxacin. She regularly takes warfarin, phenytoin, gliclazide and hydroxychloroquine. Computerised tomography head shows evidence of an acute intracranial bleed. International normalised ratio (INR) is 5.0. Which of the following drugs may have led to her presentation?

Select the SINGLE most appropriate option from the list below. Select ONE option only.