Pendant with hydroxychloroquine in 1.2 mm silver wire with Cl-atom as a green enameled silver ball, N-atoms as oxidized silver balls and the oxygen as a 18K gold ball.

Hydroxychloroquine (HCQ) is a medication used for treatment of certain types of malaria. Preliminary results from China and France have shown that HCQ also can be effective in treating COVID-19-associated pneumonia.