The quote (heavily pruned, but you can look it up in the link to verify I didn't change the meaning) is:
> Now, a drug called chloroquine ... is a common malaria drug. It is also a drug used for strong arthritis... in a somewhat different form ... But the nice part is, it’s been around for a long time, ... it’s not going to kill anybody.
> When you go with a brand-new drug, you don’t know that that’s going to happen. ... But this has been used in different forms — very powerful drug ... And it’s shown very encouraging — very, very encouraging early results. And we’re going to be able to make that drug available almost immediately. [The FDA has] gone through the approval process; it’s been approved. ... So we’re going to be able to make that drug available by prescription or states.
There is more, and it's similar in tone. So I don't think he said "Please go take the following drug without advice from your doctor" but he did say that it was powerful, safe, and already approved by the FDA. So I think it's fair to say that he was incautious in talking about a potentially dangerous, experimental treatment.