Pаtient LF (femаle, 29 yeаrs оld, weight 69 kg) presents with a rash cоnsisting оf raised purple lesions on her legs. She is diagnosed with cutaneous vasculitis. The doctor would like to rule out a drug cause. Past medical history: osteoarthritis recently diagnosed: hypothyroidism anaemia allergy to cats Medication history: ferrous sulfate 200 mg once daily – started 4 weeks ago levothyroxine 50 micrograms once daily – started 4 weeks ago loratadine 10 mg once daily – started 3 years ago naproxen 500 mg twice daily – started 4 weeks ago paracetamol 1 g four times daily – started 3 years ago Which is the MOST LIKELY drug to suspect as a possible cause?