Does India's trial and error approach to fighting mutating coronavirus need course correction? Does India's trial and error approach to fighting mutating coronavirus need course correction? Official guidelines for Covid-19 treatment in India continue to encourage the use of treatments and drugs that scientists across the world have written off. For instance, drugs like Hydroxychloroquine are no longer part of treatment protocols worldwide. advertisement UPDATED: May 19, 2021 10:19 IST A doctor treating patients suffering from the coronavirus disease at a hospital in New Delhi. (Photo:Reuters File) The second wave continues to wreak havoc in India with over 4,500 deaths recorded in a day on Wednesday. The Centre on Monday revised the clinical guidance for Covid-19 treatment, dropping the off-label use of convalescent plasma, citing its ineffectiveness and inappropriate use in several cases.