Severe renal & hepatic impairment. Symptoms of chronic impairment of secretion production or clearance. Peptic ulcer, ciliary dyskinesia. Concomitant use w/ antitussives. Discontinue use if damage to the skin or mucosa occurs. Pregnancy (1st trimester). Tab: Rare hereditary problems of galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption. Syr: Fructose intolerance. Contains methyl & propyl hydroxybenzoate which may cause allergic reactions. Syr/drops: Contains Ponceu 4R (E 124) which may also cause allergic reactions.