A drug which was labelled as a "promising" option to treat coronavirus patients has "no effect on infected patients" – dashing hopes of a cure.
The HIV medication emerged on the black market in Russia became the subject of more than 20 Covid-19 treatment trials worldwide as a treatment and post-exposure prevention.
Reports from China suggested the drug could be beneficial against the disease, but studies are now reporting patients did not improve when given the drug.
In a study of 86 patients, sufferers also reported side effects such as diarrhoea, nausea and loss of appetite reports Mail Online.