elementPitchElementsDark sticky residue of tar and resin work, used to seal and bind. Not tar alone already published, and not oil.Pitch is used in Medicine.Dioscorides’ De Materia Medica lists pitch among warming and drawing drugs and plasters. First-century pharmacological use of dark resinous pitch, not resin as soft gum alone and not tar as a later industrial word.from Pedanius Dioscorides · De Materia Medica, 1st century CEused in · sourced · documentedsourcesDe Materia Medica · Pedanius DioscoridesDioscorides, De Materia Medica.