CDC handout for Hydroxychloroquine for malaria. https://www.cdc.gov/malaria/resources/pdf/fsp/drugs/hydroxychloroquine.pdf

Weird, seems pretty safe unless you take it for years.

Says pregnant women and kids can take it.

"CDC has no limits on the use of hydroxychloroquine for the prevention of malaria. When hydroxychloroquine is used at higher doses for many years, a rare eye condition called retinopathy has occurred. People who take hydroxychloroquine for more than five years should get regular eye exams."

Hmmm, doesn't seem dangerous.