“Hydroxychloroquine overdose is associated with cardiovascular, neurological, and other toxicities, occurring with doses over 1500 mg, and higher doses are associated with fatality.”
What is an Emergency Use Authorisation?
An Emergency Use Authorisation (EUA) is a regulatory mechanism to facilitate the availability and use of medical countermeasures, including unapproved or investigational health products, during public health emergencies, such as the current Covid-19 pandemic2. National Regulatory Authorities (NRAs) can issue an EUA when certain legal criteria have been met such as a national health emergency and/or no adequate, approved, and available alternatives. It is not just NRAs that can use emergency use mechanisms. After the experience during the West African Ebola outbreak from 2013-2016, the World Health Organisation (WHO) developed the Emergency Use Assessment and Listing (EUAL) procedure for health products which was updated in January 2020 with the Emergency Use Listing (EUL) procedure3.