Covid-19 drug. Scientists have found only the second type of medicine which reduces the risk of patients dying from killer coronavirus.Steroids costing just a fiver, taken as a tablet or an injection, saved the life of one in every 10 Covid-19 patients treated in trials.The life-saving pill will now be a standard care treatment across the world.Seven trials co-ordinated by the World Health Organization (WHO) followed patients on types of steroids called corticosteroids at 88 NHS hospitals.One type of corticosteroids, called hydrocortisone, cut the risk of death in critically ill coronavirus patients by 20%.NHS England chief executive Sir Simon Stevens said: “The NHS will now take immediate action to ensure that patients who could benefit.