摘要 |
A combination of (S)-N-[2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl]propionamide with a medicine capable of prolonging a slow-wave sleep time provides a preventive or therapeutic agent for sleep disorder that induces natural sleep, shortens sleep latency, increases deep sleep, excels in sleep maintenance and ensures an appropriate sleep time.
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