All resp tract diseases leading to formation of thick secretions difficult to be expectorated eg, acute & chronic bronchitis, laryngitis, sinusitis, tracheitis, flu, bronchial asthma & (as complementary treatment) mucoviscidosis.
Discontinue use if bronchospasm occurs. Not suitable for phenylketonurics. Serious skin reactions eg, SJS & Lyell's syndrome. History of peptic ulcer; histamine intolerance. Perform postural drainage & bronchoaspiration in patients unable to cough up secretions. Patients on Na-restricted diet. Renal or hepatic impairment. Pregnancy & lactation.
Inactivation of antibiotics. Lead to build-up of bronchial secretions w/ antitussive medicinal products. Increased vasodilatory & platelet aggregation-inhibiting effect of nitroglycerin. Decreased effect by activated charcoal. Affected values of salicylates by colorimetric analysis. Interfered w/ ketone tests in urine.