FabiFlu's price is significantly lower than versions of favipiravir in other countries, the company added.

The first results for brincidofovir are expected in February and for favipiravir in late March.

T-705 (favipiravir) is a new antiviral agent in advanced clinical development for influenza therapy.

These unique anti-viral profiles will make favipiravir a potentially promising drug for specifically untreatable RNA viral infections.

The antiviral favipiravir from Japan's Toyama Chemical was developed to fight RNA viruses such as the new coronavirus.

Both are based on favipiravir, which was developed in Japan and is widely used there as the basis for viral treatments.

Already available generically in many countries under the name favipiravir, the drug has been approved to treat COVID-19 in India and Russia.

Avigan, originally developed as an emergency flu drug and known generically worldwide as favipiravir, has been approved in India and Russia to treat COVID-19.

Its antiviral effect is attenuated by the addition of purine nucleic acids, indicating the viral RNA polymerase mistakenly recognizes favipiravir-RTP as a purine nucleotide.

MSF says the trial so far suggests the most vulnerable patients who are most likely to die from the disease don't benefit from favipiravir.

Avifavir, known generically as favipiravir, was first developed in the late 1990s by a Japanese company later bought by Fujifilm as it moved into healthcare.

Hyderabad-based Dr Reddy's also has tie-ups with global firms to sell coronavirus treatments remdesivir and favipiravir in India besides its partnership for the Sputnik-V vaccine.

We used supportive treatment with intravenous fluids, broad-spectrum antibiotics, and experimental treatments with convalescent plasma from two survivors of Ebola virus disease and high-dose favipiravir.

SARS-CoV-2 PCR tests were negative on days 17 and 18 of favipiravir therapy, and the patient was discharged without residual disease on the final CT.

Favipiravir was originally developed by Japan's Fujifilm Holdings Corp under the brand name Avigan for treating influenza.

Favipiravir would need government approval for full-scale use on Covid-19 patients, since it was originally intended to treat flu.