The dose you are taking is higher than Dr. Z’s recommendation for medical treatment. He recommends 100 mg a day for prophylaxis. You probably ought do some research on toxicity. I just checked on toxicity of HCQ and CQ and they reported danger to the eyes which can continue long after the doses are stopped. Of course, Dr. Z was only suggesting for 5 days.
Thanks for your concern but I am taking only half the recommended dosage as it is. I’m not sure why you think hydroquinone or quinone side effects have anything to do with quercetin. I do seem to have one mild and documented side effect from quercetin — a feeling of “heavy legs”.