Or one could take possibly be given Ivermectin or hydroxychloroquine (but no one is "allowed" to talk about that).
I might take ivermectin if I develop a parasitic worm disease, although I think newer and more effective anthelminthics are available. I give my cats a drug out of that same class once a month to prevent heartworms.
As for hydroxychloroquine (and chloroquine), those used to be effective against the malarial parasite. However, many malaria parasites are now resistant to those drugs, so I would probably take something else if I were unlucky enough to catch malaria.
Under no circumstances would I take a parasite medication to try to fight a viral infection. Viruses are more different from parasites than roses are from sea cucumbers. In order to fight a disease, you have to take a drug specifically designed to fight it.