About 40 years ago, when I worked in Africa, I used to take Chloroquine all the time because I kept getting malaria. The usual dosage to treat the malaria was 4 , 4 and then 2. Over the years I must have taken hundreds of Chloroquine tablets. It was cheap, plentiful and easily available even in Africa, which has the highest incidence of malaria.
For anyone to ban a drug that has been used by billions of people in developing countries for over 70 years, with all side effects already known, is unconscionable. But hey, the governor of Nevada, who knows sh*t about Chloroquine . apparently knows more about the use of Chloroquine more than the Prime Minister of India which has high incidence of malaria and has been using Chloroquine for decades. You cant make this stuff up.
Hydroxychloroquine, if judged effective, would beat out more expensive (and profitable) drugs in the pipeline. Investors would not like that.