Remdesivir isn't approved anywhere for use, it's still treated as an experimental drug. Are you referring to Kaletra (lopinavir/ritonavir) that is also effective against COVID-19?
Remdesivir is the drug that is mentioned in the OP, but I am specifically talking about emtricitabine/tenofovir and tenofovir alafenamide, the only two drugs in the US approved for prevention of HIV tranmission, both of which are manufactured by Gilead and cost $2k for a 30-day supply.
