Resp infection characterized by thick & viscous hypersecretions eg, acute bronchitis, chronic bronchitis & its exacerbation, pulmonary emphysema, mucoviscidosis & bronchiectasis. Prevention or lessening of hepatic injury which may occur following ingestion of potentially hepatotoxic quantity of acetaminophen.
600 mg daily as single dose or in 3 divided doses. Antidote for acetaminophen overdose 140 mg/kg loading dose orally, followed by 70 mg/kg orally for every 4 hr for 17 additional doses.