Friend was prescribed 12 mg as a 1 time dose from a Frontline dr. Don’t know her weight but is on the heavy side. It was effective. Severe case was hugely improved in 48hrs. that’s for treatment of active cases.

As preventative, use HCQ starting with 1 tab/day for 3 days then just once a week thereafter, per Frontline dr. As alternative I took quercetin at 500mg/day with zinc and B vitamins. We had an active case in our house and both methods worked 100% effective as preventative for the rest of the family. Hope that helps.

Friend was prescribed 12 mg as a 1 time dose from a Frontline dr. Don’t know her weight but is on the heavy side. It was effective. Severe case was hugely improved in 48hrs.