28th July 2023

You review a 67 year old woman who has been complaining of persistent dry eyes and mouth for the past 3 weeks.

You review a 67 year old woman who has been complaining of persistent dry eyes and mouth for the past 3 weeks. She states that her GP reviewed her medications annually, and some were started/stopped/ switched. You review her list of medications: metformin 500mg BD, ramipril 10mg OD, paracetamol 1g QDS, tramadol 50mg QDS, oxybutynin 10mg OD, clopidogrel 75mg OD, furosemide 40mg OD.

Which of the following medications is likely the cause of her symptoms?

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