Drug delivery agents in the form of transdermal patches that facilitate the delivery of pharmaceutical preparations; medicated transdermal patches for relief of aches; medicated transdermal patches for relief of pains of muscles and joints associated with arthritis; medicated transdermal patches for relief of simple backaches, strains, bruises and sprains; transdermal patches containing cannabis as a sleep aid; transdermal patches containing cannabis for maintaining general health and well being; transdermal patches containing cannabis for management of opioid addiction; transdermal patches containing cannabis for reducing stress and fatigue; transdermal patches containing cannabis for relaxation; transdermal patches containing cannabis for relieving anxiety; transdermal patches containing cannabis for relieving depression; transdermal patches containing cannabis for the relief of epilepsy; transdermal patches containing cannabis for the relief of pain; transdermal patches for use in the treatment of bruises and sprains; transdermal patches for use in the treatment of heart disease.