Five corona patients, who were under treatment in hospital died on Wednesday, according to the latest update issued by the National command and Operation Center (NCOC).
Avifavir gained approval from the Russian health ministry in May and is based on favipiravir, which was developed in Japan and is widely used there as the basis for viral treatments.
The ministry said total confirmed cases had increased to 296,755, still the highest in Southeast Asia, while deaths had reached 5,127, nearly half of which were recorded in the past 30 days.
The new restrictions require all businesses and workplaces, except for those designated essential, to shut down for at least two weeks starting on Friday.
Warnings are also being issued for Andorra, Argentina, Bahrain, Costa Rica, Israel, Kuwait and the Maldives, while a travel warning for Portugal was being reduced to Lisbon and the Norte region.
The Fund has provided some $90 billion in total financing to 79 countries, including 20 in Latin America, since the start of the health crisis, an IMF spokeswoman said.