title: Spinal Opiate analgesia and facial pruritus.
mesh_terms: D003875:Drug Eruptions / Q000209:etiology*; D005148:Facial Dermatoses / Q000139:chemically induced*; D006801:Humans; D009294:Narcotics / Q000009:adverse effects*; D011537:Pruritus / Q000139:chemically induced*
chemical_list: D009294:Narcotics