Lead Plaster

LEAD PLASTER (simplex lead plaster), Emplastrum Plumbi simplex, E. Lithargyri simplex, E. diachylon simplex, is obtained by boiling equal parts of wood oil, purified lard, and lead oxide (in the form of a fine powder) with a sufficient amount of water until complete saponification. The plaster has a grayish-white color and a uniform consistency. When warmed, it stretches into thin threads and is very sticky. It should not be greasy, scorched, or contain particles of lead oxide. It is stored in a cool place. The ancient Greeks already knew the method of preparing lead plaster and used it for dressing wounds. Fresh plant juice was included in its composition, which is why it received its name (Greek chylos-juice). The therapeutic application of lead plaster is indicated as a protective and covering agent, which also contains lead (see), exerting an astringent and antiseptic action.