The . expectorant effect of Ambroxol was observed in 13 cases of respiratory . di-_ seases (5 cases with bronchial asthma, 2 cases with acute bronchitis, 2 cases with lung ca, 2 cases with pneumonia, 1 case with chronic bronchitis and 1 cases with pulmonary tuberculosis ) between Nov. ´83 and Mar. ´84.
The folliwing results were obtained;
1 ) Clinical improvement of % of cases after treatment wilh Ambroxol was 78% of cough, 62% of 1,equency of sputum expectoration, 59% of amount of sputum volume, 80% of expectoration and 75% of color of sputum.
2 ) Clinical improvement of -pulmonary function test was as follows ;
(1) Improvement of less than 10% of FVC was 9 cases (69.2% ) improvement between 10% and 20% of FVC was 3 cases (23.1%), and improvement of more than 200/0 of FVC was 1 case (7,7% )
(2) Improvement of less than _ 10% of FEV1 /FVC was 11 cases (84.6% j, improvemont between 10% and 20% of FEVx/FVC was 2 cases (15.4% )
3) No remarkable side effects was observed.
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