Efficacy of L-menthol on Breathlessness in Asthma

Summary

The purpose of this study is to assess the effect of L-menthol on breathlessness and exercise capacity in patients with Asthma.

Eligibility

Inclusion Criteria:

* the subject has given written consent to participate in the study
* physician diagnosis of Asthma according to international guidelines
* mMRC (modified Medical Research Council) score of 1 or above
* age 18 years or older
* able to cycle
* able to understand and talk Swedish to participate in the study procedures, as judged by the Investigators.

Exclusion Criteria:

* resting peripheral oxygen saturation (SpO2) \< 92%
* hospitalization or clinical instability during the last four weeks
* treatment with supplementary oxygen at rest or during exercise
* contraindication to exercise testing in accordance with clinical practice guidelines
* expected survival shorter than six months as judged by the Investigator
* medical conditions including congestive heart failure, acute coronary artery disease, neuromuscular diseases, severe psychiatric illness, and olfaction disorder.

Conditions1

Interventions1

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