From: Efficacy of cineole in patients suffering from acute bronchitis: a placebo-controlled double-blind trial
Placebo
Cineole
Mean
P- value*
Frequency of coughing fits a
0.64 (0.87)
1.18 (1.12)
0.0001
Cough documentation b
1.00 (1.39)
1.30 (1.31)
0.0896