A new evaluation method for +Gz tolerance with loratadine by using a near-infrared spectroscopy
2008

Evaluating Loratadine's Effect on Gz Tolerance

Sample size: 9 publication Evidence: moderate

Author Information

Author(s): Onozawa Akihiko, Kikukawa Azusa, Miyamoto Yoshinori

Primary Institution: Aeromedical Laboratory, Japan Air Self-Defense Force

Hypothesis

Does loratadine affect +Gz tolerance in healthy subjects?

Conclusion

Loratadine has no detectable effect on +Gz tolerance according to both traditional and new measurement methods.

Supporting Evidence

  • No significant differences were observed in +Gz tolerance between subjects taking loratadine and placebo.
  • The study represents the first use of a quantitative parameter such as cerebral NIRS variables to assess the effects of a drug on acceleration tolerance.
  • Loratadine is commonly accepted for use by aircrew without adverse side effects.

Takeaway

This study tested if a common allergy medicine affects how well people can handle high G-forces, and it found that it doesn't.

Methodology

A double-blind, placebo-controlled, randomized, crossover study was conducted with 9 healthy subjects who received either loratadine or placebo before undergoing +Gz tolerance tests using a centrifuge.

Limitations

The sample size was limited to nine subjects.

Participant Demographics

9 healthy subjects (8 males and 1 female) with a mean age of 34.3 years.

Statistical Information

P-Value

<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1476-5918-7-3

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