Is Hydroxychloroquine effective in fighting COVID-19?

Hydroxychloroquine (Brand Name: Plaquenil) What it's for: Hydroxychloroquine is a medication that's been historically used to treat malaria, certain autoimmune diseases like rheumatoid arthritis and lupus, and occasionally for conditions like porphyria cutanea tarda. How it works: Hydroxychloroquine works by adjusting the immune system's activity, reducing inflammation in conditions like arthritis and lupus. For malaria, it disrupts the parasite's life cycle in red blood cells, preventing its su