Hyderabad, Apr 26: Natco Pharma Limited on Monday said it applied to the Central Drugs Standard Control Organisation (CDSCO) for approval of Phase-III clinical trial of Molnupiravir Capsules for the treatment of COVID-19 positive patients.American pharma major Merck along withRidgeback Biotherapeuticshasdeveloped Molnupiravir(MK-4482).