Chili compound put to the test as a cough silencer

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Out-patients, men and women * Age 18-75 years * Present non-smoker * A diagnosis of CIC, set by a trained specialised physician * Exceeding the cut off limit for the Swedish version of the Hull Airway Reflux Questionnaire (HARQ-S): (a total score of ≥13 points) * At screening visit reporting daily, troublesome coughing and an easily evoked cough reflex since at least two months * At screening visit having a positive capsaicin inhalation cough test Exclusion Criteria: * Known or suspected chili allergy * Known or suspected allergy to the colorant Tartrazine (FD\&C Yellow #6) * Any kind of diabetes * Treatment the preceding month with any kind of chili medication or food supplement containing capsaicin or having a diet including chili in treatment purpose * Treatment the preceding month with medication according to the study protocol * Pregnancy, breast-feeding, planned pregnancy during the study and fertile women not using acceptable contraceptive measures, as judged by the investigator * Suspected poor capability to follow instructions of the study, e.g. because of a history of drug abuse, difficult to read and/or understand Swedish or any other reason, as judged by the investigator * Airway infection the last 4 weeks before study start * Any significant disease or disorder which, in the opinion of the investigator, may either put the patient at risk because of participation in the study, or influence the results of the study, or the patient's ability to participate in the study * Any clinically relevant abnormal findings in physical examination, vital signs at baseline visit, which, in the opinion of the investigator, may put the patient at risk because of his/her participation in the study * Previous randomisation of treatment in the present study * Participation in another clinical study 30 days prior to and during this study * Smoking during the last ten years or/and \>10 pack years * Known alcohol and/or drug abuse * The participants will be asked for any season allergy or other allergy and for allergen exposure. The study start date will be adjusted to season or another possible allergen exposure.