Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/4/2025

Management of Hiccups and Nausea After Lorazepam

Understanding the Association

  • The American Academy of Pediatrics recommends a typical dose of chlorpromazine: 25-50mg orally every 6 hours as needed for hiccups 1

Management of Hiccups

  • The Mayo Clinic suggests baclofen as a treatment option for persistent hiccups, with a starting dose of 5-10mg three times daily 2
  • The Journal of the National Comprehensive Cancer Network recommends metoclopramide 10-20mg orally or IV every 4-6 hours for hiccups 3

Management of Nausea

  • The National Comprehensive Cancer Network recommends ondansetron 8mg orally or 4mg IV for medication-induced nausea 4
  • The Mayo Clinic suggests dexamethasone 4-8mg orally to augment antiemetic therapy 2
  • The Journal of the National Comprehensive Cancer Network recommends promethazine 25mg orally or rectally every 6 hours for nausea 3

Comprehensive Approach

  • The National Comprehensive Cancer Network recommends treating nausea with ondansetron or prochlorperazine 4
  • The European Heart Journal suggests divided doses of lorazepam may reduce the incidence of side effects 6

Special Considerations

  • The American Academy of Pediatrics warns to monitor for sedation when using chlorpromazine, especially if the patient has already received lorazepam 1
  • The American Academy of Pediatrics advises to be aware of potential QT prolongation with both ondansetron and chlorpromazine, particularly in patients with cardiac risk factors 1

Prevention for Future Use

  • The National Comprehensive Cancer Network recommends pre-medication with ondansetron before lorazepam administration to prevent nausea 4