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Managing space motion sickness

R T Jennings1

  • 1Preventive, Occupational and Environmental Medicine, University of Texas Medical Branch, Galveston 77555-1150, USA. rtjenning@utmb.edu

Journal of Vestibular Research : Equilibrium & Orientation
|January 7, 1998
PubMed
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Space motion sickness affects most astronauts, causing moderate to severe symptoms. Intramuscular promethazine is the most effective treatment, while readaptation difficulties upon return to Earth also require management.

Area of Science:

  • Aerospace Medicine
  • Human Physiology
  • Spaceflight Operations

Background:

  • Space motion sickness impacts 73% of astronauts during initial spaceflight days.
  • Symptoms range from mild to severe, necessitating management strategies.
  • Readaptation difficulties, including nausea and coordination issues, occur upon return to Earth.

Purpose of the Study:

  • To review the challenges of space motion sickness and postflight readaptation.
  • To evaluate current and potential management strategies for these conditions.
  • To inform operational considerations for crew health and mission success.

Main Methods:

  • Review of existing literature and clinical observations on space motion sickness.
  • Analysis of pharmacological interventions, including intramuscular and oral medications.
Keywords:
Non-programmatic

Related Experiment Videos

  • Examination of postflight symptoms and therapeutic approaches.

    • Main Results:

    • Intramuscular promethazine shows a 90% initial response rate for space motion sickness.
    • Oral prophylactic treatments have yielded mixed results.
    • Meclizine and promethazine are primary agents for postflight symptoms, with no established prophylactic treatment.

    Conclusions:

    • Intramuscular promethazine is the most effective current treatment for space motion sickness.
    • Postflight readaptation deficits pose operational concerns and require symptom management.
    • Individual variation in adaptation suggests personalized or experienced-crew approaches for extended missions.