| http://www.w3.org/ns/prov#value | - Melatrol???s main ingredient 5-HTP can affect sleep patterns by increasing the levels of serotonin which is needed to produce melatonin, a hormone which regulates sleep-wake cycles.WithdrawalWhen you stop taking over the counter sleeping pills you can suffer withdrawal symptoms, such as rebound insomnia, blurred vision, sweating, nausea and shaking.
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