Sentence:  No additional transfusions were necessary after the institution of <WSD>prednisone</WSD> in July , 1957 , in an initial dose of 40 mg. daily with gradual tapering to 10 mg. daily . 
Meaning of the word marked with <WSD> tags:  a dehydrogenated analogue of cortisol (trade names Orasone or Deltasone or Liquid Pred or Meticorten); used as an anti-inflammatory drug in the treatment of arthritis and as an immunosuppressant