May be taken with or without food: Swallow whole, do not split/break.
Contraindications
Hypersensitivity. Patients w/ phlegm or mucociliary dysfunction; excessive discharge of mucus, limited mucociliary function (Kartagener's syndrome, ciliary dyskinesia) or bronchorrhea. Severe hepatic impairment. Women of childbearing potential. Pregnancy & lactation.
Patients w/ severe heart failure. May occasionally cause drowsiness; caution in driving car or operating machinery. Severe renal impairment (CrCl <35 mL/min). Not to be used during pregnancy or in suspected pregnant women. Childn <2 yr. Elderly w/ generally altered sensitivity to different types of drugs.