The Role of Melatonin in the Treatment of COVID

The half life of melatonin is 40 minutes but in the cell it's significantly longer depending on the second sense. So how often should you take it? I would say oral base melatonin, swallow or sublingual. We have suggested on some occasion that melatonin be taken of course at bedtime and then at the time of awakening and at 10 a.m. and at 4 p.m.