When my Farher in law told us (before the scamdemic) how the Navy and Air Force (when he was enlisted and later worked for them as a civilian) that they used to hand it out like candy before any overseas deployment to prevent malaria and many other things, I knew something was seriously up when they said it doesn’t work and you can’t buy it anywhere. That is why when we got the stupid bug, we went to our pharmacist who is a friend from church and he told us where to get it and dosage. (Feed stores-horse paste) but it worked and added elderberries which sped it up.