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| Melatonin
https://www.google.com/amp/s/sleepsherpa.com/how-long-does-effects-o...
From the above link
“The effects of melatonin last according to the dosage. A dosage of 0.5 mg will last only an hour while a 10 mg dosage will last more than seven hours. It all depends on how severe your condition. If you have infrequent episodes of sleeplessness, then a dosage of one or two milligrams should help you fall asleep. If you’re a chronic insomniac or suffer from the delayed onset of sleep, you need a dosage of 10mg or higher.“ | |
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