If you know this is the place for info, you could have seen hundreds of posts on dosage (.2 mg/Kg), over 69 peer reviewed studies showing it to be safe an effective, many personal testimonials, and that it has to be taken with zinc to get into the virus to do its job. AND that early is the time to take it. So if you are now super sick you missed the best opportunity because now you will have to get some. Quickest remedy get quercetin with zinc, vitamins D, C, B3 in double daily recommended amounts from a drug or nutrition store. While there pick up lactoferritin and Benadryl too. All those are helpful