RE:An easy read on repurposing drugs. Here is a link to an Algernon article from April. Compare this to the link you just posted!
The drug was previously tested against H1N1, thus making the case for a Covid 19 treatment very weak.
https://midasletter.com/2020/04/ifenprodil-the-specialized-drug-treating-coronavirus/
look at how fast the South Korea trial ended, they just went to the pharmacy abs got the pills.... do you forget how they then shifted back to chronic cough? The Covid dream is over!