The Department of Health and Social Care says the most expensive drug it bought last year was a flu vaccine - costing more than £4,300 a dose.
A freedom of information request asked for the health system's dearest drugs, and the department listed 24 pharmaceutical products that cost more than £1,000 each.
Topping the list was five doses of Imuvac, which immunises against H1N1 swine flu, at a total cost of £21,624.60
Diabetic treatment Dapsone was the second most expensive, at £3,782.50 a dose - the Island's NHS bought seven doses over the last 12 months.
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