Smiley, Richard M Loss of gag reflex and swallowing ability after administration of intrathecal fentanyl. [electronic resource] - Anesthesiology Jun 2007 - 1253 p. digital Publication Type: Case Reports; Letter ISSN: 0003-3022 Standard No.: 10.1097/01.anes.0000265423.95135.78 doi Subjects--Topical Terms: AdultAnalgesia, Obstetrical--adverse effectsAnalgesics, Opioid--administration & dosageDeglutition Disorders--chemically inducedFemaleFentanyl--administration & dosageGaggingHumansInjections, SpinalNaloxone--therapeutic useNarcotic Antagonists--therapeutic usePregnancy