[semimojo]

Isn’t it because they evaluated these compounds in the lab IN ADVANCE and found out that they indeed showed Protease inhibition capabilities? Didn’t they also use computational modeling for this?

I imagine they did, yes.

...why then is it appropriate to call Pfizer’s drug a Protease inhibitor but not Ivermectin?

I'm not saying ivermectin isn't a protease inhibitor - I don't know either way - all I've said is I haven't seen any clinical studies that say it is. Which is what you claimed.

[ProtectOurFreedom]

This is not my feed at all (I’m a mechanical engineer), but my understanding is that clinical trials are not going to reveal the method of action of a drug. They will only tell you if a drug is effective at achieving a defined end point of the trial.

Lab studies will reveal the pharmacokinetic and pharmacodynamic actions at the molecular level.