Chloroquine is an antimalarial medicine used to treat malaria. However sometimes it is also used in the treatment of systemic lupus erythematosus, arthritis or some skin disorders. Common side effects include (which you are experiencing) headaches, nausea, loss of appetite, diarrhea, stomach cramps, itchiness, or skin rash. Most of these side effects would go as your body tries to adjust to the medicine while the course of treatment. For severe nausea just chew/suck a piece of salted ginger. This will help you to deal with it. Rest in a dark peaceful room and lightly massage your frontals to ease your headache.
It would take some time before you feel better when you are being treated for lupus with the help of chloroquine. Stopping the medication won’t be a solution as the side effects may continue even after you stop taking it. If your symptom worsens or if there are severe side effects then consult your specialist for immediate attention.
answered by S P