Hydroxychloroquine, like nearly everything else in this politically charged environment, is not without significant controversy. The Food and Drug Administration warned that the use of hydroxychloroquine could cause serious heart problems for coronavirus patients.
So like many other vaccines and therapeutic treatments for COVID-19, the science is still unsettled by medical testing that is still ongoing. But because hydroxychloroquine is an antimalarial drug, there are accepted side effects from taking it.
The most common side effects for hydroxychloroquine present in the gastrointestinal tract for users, and according to the American College of Rheumatology, nausea is chief among the symptoms from which hydroxychloroquine takers can sometimes suffer.