Here in India a Doctor has already died after taking this and having a cardiac issue (which is one of the potential complications): https://www.indiatoday.in/india/story/coronavirus-in-india-g...
I think people responding to Trump's advocacy of this drug are making a mistake by saying things like "there are no randomized controlled trials for this application" and "patients with other ailments need this, so don't hoard it".
What really needs to be said is the plain facts: while doctors are trying out this medicine, there is no miracle cure. This disease causes different conditions in people that need to be addressed with different interventions.
As a layman I found this chart very enlightening about how the disease has various dynamics (inflammation, etc): https://imgur.com/a/seG2KFS