Table 7.

Examples of currently available over-the-counter guaifenesin formulations and recommended doses in the US and Canada

Formulation	Population	Recommended doses	Available dosage form – Product example(s)
Immediate-release	Children – 2 to <6 years	US: 50–100 mg up to 4-hourly; max 600 mg/day Canada: Not recommended	Syrup – CVS Health® Children’s Mucus Relief Chest Congestion Soft chews – Kids-EEZE® Chest Relief
Immediate-release	Children – 6 to <12 years	US: 100–200 mg up to 4-hourly; max 1200 mg/day Canada: Not recommended	Syrup – CVS Health® Children’s Mucus Relief Chest Congestion Soft chews – Kids-EEZE® Chest Relief
Immediate-release	Adults and children 12 years and older	US: 200–400 mg up to 4-hourly; max 2400 mg/day Canada: 200–400 mg up to 6-hourly; max 1600 mg/day	Tablet – Bidex® Syrup – Robitussin® Mucus & Chest Congestion; Scot-Tussin Expectorant Soft chews – Kids-EEZE® Chest Relief
Extended-release	Adults and children 12 years and older	US: 600–1200 mg up to 12-hourly; max 2400 mg/day Canada: 600 mg (1 tablet) up to 12-hourly; max 1200 mg/day (2 tablets)	Tablet – Mucinex®