Your presumed litmus that it is only ethical to prescribe a drug that we know is safe and know will help, is unsatisfiable. Zero treatment options for anyone, for any disease would meet this criteria. I think Mark said it best: I can't believe we're seeing a replay of this scenario -- attack those who are trying to help us. Though interestingly it does seem to be many of the same folks wielding the torches and pitchforks. I guess I'd naively hoped the last witch hunt was an aberration.