The Brihanmumbai Municipal Corporation (BMC) on Monday informed that preliminary experiment of a cocktail of two antibody drugs -- Casirvimab and Imdevimab - has been successful.As per a statement issued by the BMC, as many as 200 patients have been treated using the cocktail of Casirvimab and Imdevimab drugs at Seven Hills Hospital in Mumbai's Andheri area."The number of patients in need of oxygen after this cocktail medication is only 0.5 per cent and the mortality rate is reduced by a staggering 70 per cent. Earlier, the requirement of 13 to 14 days of hospitalisation reduced to 5 to 6 days," the municipal corporation said.The BMC Health Administration has implemented this cocktail medicine system on a pilot basis at Seven Hills Hospital. Till date, 212 Covid patients have been given this cocktail medicine through saline. Out of these, conclusions have been reached after the treatment of 199 patients. A detailed study is being done by the administration."These 199 patients included