Nobody seems to be talking much about favipiravir, which seems a bit like not-invented-here syndrome. If it stood to make a lot of money for some US big pharma company I suspect we'd be hearing more about it.
That's something.
People want to talk about this stuff because it feels like a magic bullet. Viral infections don't have magic bullets[1], they just don't. We have to beat this with elbow great: huge amounts of testing and tracing once the outbreak is at a manageable baseline, and high uptake of mitigation strategies like social distancing until it gets there. And yes, that costs a lot of money.
[1] Rather: they do, but they're called vaccines and take time.
So, by definition, we will only have unproven drugs to use for the foreseeable future.
But in the legal sense, my impression is that FDA never approves anything in under 2 years. Happy to be proven wrong!
They do. Consider HIV/AIDS. Nowadays, someone who gets HIV-positive at the age of 20 can expect to live to 70. It's quite astounding what modern combination therapy can do.