Laudanum his "archanum" or "laudanum", may or may not have contained opium. Paracelsus' laudanum was strikingly different from the standard laudanum of the 17th century and beyond, containing crushed pearls, musk, amber, and other substances. One researcher has documented that "Laudanum, as listed in the "London Pharmacopoeia" (1618), was a pill made from opium, saffron, castor, ambergris, musk and nutmeg". Laudanum remained largely unknown until the 1660s when English physician Thomas Sydenham (1624–1689) compounded a proprietary opium tincture that he also named laudanum, although it differed substantially from the laudanum of Paracelsus. In 1676 Sydenham published a seminal work, "Medical Observations
Faculty of Occupational Medicine (United Kingdom) use the postnominals MFOM. Election of Members of the Faculty to Fellowship (conferring the postnominals FFOM) is the Faculty’s way of recognising those who have made a particularly significant contribution to the practice of occupational medicine, or contributed significantly to the work of the Faculty. The faculty’s official journal is Occupational and Environmental Medicine, a monthly peer-reviewed medical journal which covers research in occupational and environmental medicine. Alongside this the Faculty produces a wide number of publications and guidance papers, including the highly influential "Ethics Guidance for Occupational Health Practice", "Guidance on Alcohol and Drug Misuse in the Workplace" and