Melatoninum
N-Acetyl-5-methoxytryptamine (IUPAC: N-[2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide) · Melatonin, Melatoninum, Pineal hormone, "sleep hormone"
Key symptoms
Worse (aggravation)
Better (amelioration)

Melatonin, Melatoninum, Pineal hormone, "sleep hormone"
Source & Nature
Melatoninum is prepared from melatonin (N-acetyl-5-methoxytryptamine), the principal indoleamine hormone of the pineal gland. It is synthesised from serotonin, itself derived from the amino acid tryptophan. Molecular formula C13H16N2O2; molecular weight 232.28; CAS 73-31-4; PubChem CID 896.
In the body melatonin is the chronobiotic 'darkness signal': its secretion rises at night and falls in light, governing the circadian sleep-wake rhythm via MT1/MT2 receptors. It is widely sold as an over-the-counter supplement and, in some countries, a prescription medicine for insomnia, jet lag and circadian rhythm disorders.
Classical texts are in the public domain. Educational reference only — not medical advice.