NATIONALNMRA gives regulatory clearance for emergency use of Oxford /AstraZeneca January 22, 2021January 22, 202119 Share0 (UTV | COLOMBO) – The National Medicines Regulatory Authority(NMRA) has granted the regulatory clearance for the emergency use of Oxford /AstraZeneca Covid-19 vaccine in Sri Lanka, State Minister Prof. Channa Jayasumana said.